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Timing Belts Index

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Power Transmission Solutions


Belt Drives overview 2Belt Drive Selection:

- Metric & Classical Belts 3-9- Green Linear Belts 25-26- Polyurethane Belts 36

Belt Installation 10Clamping Plates 45Classical Timing Belts and Pulleys 27-34Classic Belts:

- Standard Range 29-30Classical T/Belt Pulleys:

- Pilot Bore (XL,L,H) 30-32- Taper Bore (L,H) 33-34

Metric Timing Belts and Pulleys 11-22Metric Belts:

- Standard Range 12-14- Green Power Open Ended Belts 24-26

Metric T/Belt Pulleys:- Avante System (5M,8M,14M) 19-20 - Pilot Bore (3M,5M,8M,14M) 15-18 - Taper Bore (5M,8M,14M) 21-22

Polyurethane Timing Belts and Pulleys 35-43Polyurethane Belts:

- Standard Range 37- Open Ended Belts 43

Polyurethane T/Belt Pulleys:- Avante System (T5,T10) 38- Pilot Bore (T2.5,T5,T10, AT5,AT10) 39-42

Taper Bore Bushes 23Timing Bars 44Trouble Shooting 45

Catalogue Selection INDEX

Enquiry

CD Contents

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NEXTBACKINDEXTiming Belts :

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CD Contents Catalogue Selection INDEX

Timing Belt Drives

2

Cross+Morse Timing Belt Drives take their place in industry as a highlyefficient, job proven medium for mechanical power transmission. Becausethese drives combine many important exclusive characteristics, theypresent an entirely different concept in the transmission of power. Theyare highly versatile in application and speed range.Timing belt drives are positive and offer accurate synchronisation ofspeed, and often make possible worthwhile economies in the design of amachine, because they require less space, reduce bearing specification,eliminate tension devices, yet assure an unusually high degree ofefficiency.Virtually every industry has tested and approved timing belt drives. Theyhave been adopted as standard equipment by a wide variety of machinebuilders and equipment manufacturers. Millions of successful drives inoperation without belt replacement for more than five years beartestimony to these drives. Cross+Morse offer three types of timing beltdrive to cover the full spectrum of industrial requirements.

These are the original tooth belt drives, introduced for the transmission oflow torque instrumentation drives more than forty years ago, and sincedeveloped and adopted for millions of drive applications. Eight differentpitch configurations were produced, but later belt designs have eliminatedthe demand for all but three sizes. Cross+Morse offer complete drives to1/5” (XL), 3/8” (L), and 1/2” (H) pitch sizes with both pilot bored and taperbored pulleys. Drives to other configurations can be supplied to order.The Classical Timing Belt is the ideal low cost drive for powers up to 25 KWwith a wide range of both belts and pulleys available from stock. Doublesided belts and open ended belts can also be supplied.

The Classical Timing Belt Drives

Demands for ever increasing powers and speeds led to the introduction ofa Metric Series of High Torque Drive Belts, using a parabolic tooth profileto enable increased tooth contact between belt and pulley. The new toothprofile has improved shear stress resistance, increased power capacity, andreduced noise levels. Pirelli introduced the RPP belt with an indentation atthe top of the teeth, to allow local elastic deformation during meshing withpulley, and easier air discharge to further reduce noise levels. Cross+Morsecombine RPP belts with std. Metric pulleys to provide off-shelfdrives in 4 pitches; 3mm (3M), 5mm (5M), 8mm (8M), and 14mm (14M).Further development created RPP Plus Belts in 8mm (8H) and 14mm (14H)pitch with double power capacity; and RPP Gold Belts in 8mm (8P) and14mm (14P) pitch with treble capacity; both still operating on standardmetric pulleys allowing full interchangeability with existing drives. Drivesup to 600 KW can now be transmitted.

The Metric Series Belt Drives

These belts use steel tension cord encased in a polyurethane jacket with inte-gral teeth. The method of manufacture ensures tight control of pitch lengthfor applications where accurate positioning is required. Polyurethane is anon-crumbling, non-marking material with excellent resistance to mineraloils, greases and light acidic solutions making it an ideal material for foodapplications, on cigarette manufacturing machines and paper transportingsystems. Polyurethane belt drives are available in 3 pitch sizes, 2.5mm (T2.5),5mm (T5) and 10mm (T10), with a selection of pilot bore pulleys.Double sided belts and long open end belt lengths are also available. For rec-iprocating drives clamping plates are available to retain the belts.A new range of PU belts to operate on standard Metric pulleys is availablein 5mm, 8mm and 14mm pitch in open end construction for high loadreciprocating drives (ref. pp 24-26).

Polyurethane Timing Belts

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a. Determine Belt LengthFor drives with pulleys of equal numbers of teeth.Calculate Number Teeth in Belt Nc = 2. Ao + Z1

pFor drives with pulleys of dissimilar numbers of teeth.Calculate Number Teeth in BeltNc = 2.Ao + (Z1+ Z2) + 2.533p (Z2 - Z1)

Where Ao = Approximate Centre Distance mmp = Belt Pitch mmZ1 = Number Teeth Small PulleyZ2 = Number Teeth Large Pulley

Note: Nc must always be greater than 0.9 (Z1 + Z2)Refer to standard Belt Tables (pages 12/13 Metric Drives,page 28-29 Classical) and select nearest belt length to numbers ofteeth calculated.

b. Determine Actual Shaft CentresThe actual centre distance A can then be determined from thefollowing formula where NA is number of teeth in beltselected.

A =p/4 (NA - Z1 + Z2 + (NA - Z1 + Z2) -2.027 (Z2-Z1)

This will provide a reasonably accurate result but for fixed centredrives please contact Cross+Morse Engineering.

6. Factors to correct for Teeth in Mesh andBelt Length

a. Teeth in mesh factor f5

Applicable only on drives with pulleys less than 18 teeth ordrive ratio greater than 3: 1. For a belt to transmit full powera minimum of 6 teeth must be in mesh on each pulley. Thenumber of teeth in mesh can determined from thefollowing formula:

Number Teeth in Mesh (TIM)= Z1 [0.5 - (Z2 - Z1)p]18.85A

The Design Power Pd must be multiplied by factor f5 taken from table 2a.

b. Belt Length Correction factor - f6To allow for variation in rates of loading a belt length factor f6 isapplied to the Design Power Pd for final selection power Ps. Thefactors, provided in table 4, only apply to HTD drives, for Classical timing belt drives f6 = 1. Thus:-Selection Power Ps = Pd . f5 . f6

7. Belt Width SelectionHaving determined Selection Power Ps, and knowing the size ofsmall pulley and relative shaft speed use the Rating Tables onpages 7-9 to determine Rated Power Pr. which is where appropriate columns for pulley size and shaft speed intersect intable for selected belt size. If a column for the actual shaft speed isnot available use the next lower speed available, and if shaft speedis below 100r.p.m. use column for 100 r.p.m., but multiply powerread off by actual shaft speed divided by 100. A belt width factorWf can then be determined by dividing the Selection Power Ps bythe Rated Power Pr.

Wf = PsPr

From the table immediately above the relevant Power Rating Table select the belt width which has a width factor equal or greater thanthe value calculated for Wf.

8. Confirmation of DriveRefer to pulley tables 15-22 (HTD Drives) or 30-34(Classical Belts) to confirm that pulley sizes (numbers of teeth andwidth) are available, and capable of accommodating shaft sizes,and that at least one pulley is of flanged construction. If belt speedexceeds 30m/s ensure no cast iron pulleys used; also pulleysshould be balanced.Ensure that calculated centre A can be accommodatedwith adjustment to correctly tension belt on assembly, and toenable belt to be fitted over pulley flanges if applicable, referto page 10.

3

Timing Belt Drive Selection

In order to select a Timing Belt Drive it is first necessary tocompile together all the relevant design parameters, to include:-

a. Type of driver, shaft speed, and power to be transmitted.b. Type of driven machinery, shaft speed or drive ratio.c. Approximate shaft centre distance required.d. Number of hours daily, drive will be used, and any special

operating conditions (temperature, abrasive dust, etc.).e. Shaft diameters and any space restrictions affecting pulley

diameters or widths.

With this information a suitable drive can be selected by theselection procedure in conjunction with the following guidelines:

a. Power transmission capabilities are always related to thesmallest pulley in the system, regardless of whether it is thedriving or driven pulley.

b. Where there is a choice of pulley combination for a givendrive consideration should be given to the following:-1. Larger pulleys reduce amount of belt flexing and therefore

improve belt life.2. Larger pulleys often enable use of narrower belts.3. Large pulleys can be more expensive.

c. There must be at least one flanged pulley in the drive, andwhere centre distance is more than 8 times the diameter ofthe smaller pulley, both pulleys should be flanged.

d. If shaft centre adjustment is inadequate to correctly tensionthe belt, an idler pulley will be required. It is preferred to runidlers on the back of the belt, when a ground back belt shouldbe used.

e. Cast Iron pulleys must not be used on drives where beltspeeds exceed 30 metres per second.

Selection Procedure1. Drive RatioWhere not known this can be obtained by dividing the speed of the faster shaft by the speed of the slower shaft. Note if the driven shaft is faster this is a Speed Increasing Drive.

2. Calculate the Design PowerThe design Power Pd is determined by multiplying thetransmitted motor power P by the application factors f1, f2, f3 and f4 as applicable.

Pd = P(f1 + f3 - f4) f2

Application Factor f1 - Service Factor- relates the type of driver anddriven equipment to the daily useage, refer Table 1.

Application Factor f2 - Speed Increasing Drives - refer Table 2 for factorrelevant to respective speed increase ratio.

Application Factor f3 - If an idler is used add 0.2.

Application Factor f4 - If machinery only used intermittently orseasonally deduct 0.2 from service factor.

3. Select Belt PitchApplying the calculated Design Power and the speed of thesmallest pulley to the graphs on pages 5-6 to select suitable beltpitch for the application. Using this pitch of belt should provide a well proportioned drive, but where space limitations apply, another pitch of belt may be required. Both Metric (HTD) and ClassicalBelt Drives are available for selection. Generally HTD Belts provide a more compact, quieter drive, and are preferred for newapplications, however classical belts offer a wider selection of driveratios with std. pulleys, and for one-off drives often a lower cost.

4. Pulley SelectionRefer to Standard Drive Ratios - Table 3 and select a suitablecombination of pulleys to provide the correct drive ratio. Foreconomic and availability reasons it is preferable to use pulleys ofmaximum 80 teeth, and to minimise belt fatigue a minimum of 20Teeth (28 Teeth 14M drives).From the appropriate pulley dimension tables confirm that pulleysizes selected are available and will accommodate shaft diametersand not exceed space limitations.

5. Determine Belt Length and Centre DistanceHaving selected belt size (pitch), numbers of teeth in pulleys, andknowing approximate shaft centres one can select belt length andcalculate actual centre distance.

p 2 100Ao

2 2

101022

2

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0.90

261- 400551- 800

901- 12702051- 2500

_

_

_

____

_

_

_

The machines listed below are representative examples only. Select the classwhose load characteristics most closely approximate those of the machine being used. For drives with heavy pulsating or high shock loads, consultCross+Morse.

Timing Belt Drives Selection

Table 1 - Service Factors - f1

4

DRIVEN MACHINE (LOAD)

Table 2 - Speed Increase Factor - f2 Table 2a - Teeth in mesh Factor - f5

Table 4 - Belt Length Factor - f6 - HTD Drives

DRIVEN MACHINE (LOAD) TYPES OF DRIVER

Electric Motor AC - Star Delta startDC - Shunt Wound

Internal Combustion Engines and other prime moves fitted with Centrifugal Clutches. Dry or Fluid Couplings orElectronic Soft Start Start Devices.

Smooth

MediumShock

HighShock

HeavyShock

LightShock

LoadType Typical Machinery

‘SOFT STARTS’ ‘HEAVY STARTS’

Electric Motor AC - Direct-on-Line startDC - Series and Compound Wound

Hydraulic MotorsInternal Combustion Engines with Mechanical DrivePrime movers not fitted with soft start devices

Operating Hours per DayOperating Hours per Day

under 10 10-16 Over 16 under 10 10-16 Over 16

Business Equipment. Light Domestic Machinery,Tachometers, Camera and Radar Equipment

Liquid Agitators, Centrifugal Pumps andCompressors, Uniformly Loaded Belt Conveyors,Fans up to 71/2 kW, Calenders. Rotary Screens,Dryers, Exhausters, Woodworking Machinery.

Mixers, Belt Conveyors. Fans over 71/2 kW,Generators, Vibrating Screens, Augers,Granulators, Laundry and Printing Machinery,Machine Tools.

Bucket, Pan and Screw Conveyors,Reciprocating Pumps and Compressors,Exciters, Paper and Textile Machinery.

Mills, Crushers, Hoists, Dredge Pumps,Brickwork and Rubber Machinery, Oil FieldEquipment.

1.0

1.3

1.5

1.7

1.9

1.2

1.4

1.7

1.9

2.0

1.4

1.6

1.9

2.0

2.1

1.2

1.6

1.9

2.0

2.2

1.6

1.8

2.0

2.2

2.3

1.8

2.0

2.2

2.3

2.4

Speed IncreaseDrive Ratio

Factor f2

1.00to

1.24

1.00

1.25to

1.74

1.06

1.25to

1.74

1.06

1.75to

2.49

1.12

2.50to

3.49

1.18

3.50and

above

1.25

TIM 6+ 5 - 6 4 - 5 3 - 4 below 3

f5 1.00 1.25 1.65 2.5 5.0

Table 3 - Drive Ratios with Standard Pulleys

10 12 13* 14 15 16 17* 18 19 20 21 22 24 26 28 30 32 34 36 38

Number Teeth on Small Driver Pulley

1213*1415

1617*181920

2122242628

3032343638

4044485660

6472808490

96112 144168192

N0. T

eeth

on

Larg

e -

Driv

en P

ulle

y

1.201.301.401.50

1.601.701.801.902.00

2.102.202.402.602.80

3.003.20

3.60

4.004.404.80

6.00

7.20

8.40

9.60____

_

_

_

_

_

_ _

_

1.001.081.171.25

1.331.421.501.581.67

1.751.832.002.172.33

2.502.67

3.00

3.333.674.00

5.00

6.00

7.00

8.00

_

____

_

_

_

_

_

1.001.081.15

1.231.311.381.461.54

1.611.691.852.002.15

2.312.46

2.77

3.083.383.69

4.61

5.54

6.46_

____

_

_

_

_

_

_

1.001.07

1.141.211.291.361.43

1.501.571.712.862.00

2.142.29

2.57

2.863.143.43

4.29

5.14

6.00

6.86

_

____

_

_

_

_

_

1.001.061.131.191.25

1.311.381.501.631.75

1.882.00

2.25

2.502.753.00

3.75

4.50

5.25

6.00

_

____

_

_

_

_

_

1.00

1.071.131.201.271.33

1.401.471.601.731.87

2.002.13

2.40

2.672.933.20

4.00

4.80

5.60

6.40

_

____

_

_

_

_

_

1.001.061.121.18

1.231.291.411.531.65

1.761.88

2.12

2.352.592.82

3.53

4.24

4.94_

____

_

_

_

_

_

_

1.001.061.11

1.171.221.331.441.56

1.671.77

2.00

2.222.442.67

3.33

4.00

4.67

5.33

_

____

_

_

_

*13 & 17 Tooth Pulleys available‘L’ Series Pulleys only

40

1.00

1.051.101.201.301.40

1.501.60

1.80

2.002.202.40

3.00

3.60

4.20

4.80

1.001.051.141.241.33

1.431.52

1.71

1.902.102.29

2.86

3.43

4.00

4.57

_

_

_

____

_

_

_

_

_

_

____

_

_

_

1.001.05

1.101.161.261.371.48

1.581.68

1.89

2.112.322.53

3.16

3.79

4.42

5.05

1.001.091.181.27

1.361.451.551.641.73

1.822.002.182.552.73

2.913.273.643.824.09

4.365.096.557.648.73

1.001.081.16

1.251.331.421.501.58

1.671.832.002.332.50

2.673.003.333.503.75

4.004.676.007.008.00

1.001.08

1.151.231.311.381.46

1.541.691.852.152.31

2.462.773.083.233.46

3.694.315.546.467.38

1.00

1.071.141.211.291.36

1.431.571.712.002.14

2.292.572.863.003.21

3.434.005.146.006.86

1.001.071.131.201.27

1.331.471.601.872.00

2.132.402.672.803.00

3.203.734.805.606.40

1.001.061.121.19

1.251.371.501.751.87

2.002.252.502.622.81

3.003.504.505.256.00

1.001.061.12

1.181.291.411.65

1.882.122.35

2.65

3.294.234.945.65

1.001.06

1.111.221.331.561.67

1.782.002.222.332.50

2.673.114.004.675.33

_

_

_

1.00

1.051.161.261.471.58

1.681.892.11

2.37

2.953.794.425.05

_

_

1.001.101.201.401.50

1.601.802.002.102.25

2.402.803.604.204.80

3M5M8M

14M

Factor f6 1.25

up to 190up to 440up to 630up to 1350

191- 260441- 550631- 900

1351- 1770

1.11 1.0 0.95

2501-3400

401- 600801- 1100

1271- 17903401+

0.85

601+1101+1791+

1.05

1771-2050

Belt Length mmBelt Size Pitch

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5

Shaft Speed Smaller Pulley - R.P.M.

0.1

30

40

50

70

7,00

0

Des

ign

Pow

er k

WBelt Selection Graph forClassical Series Belts

10 20 30 40 50

100

200

400

500

700

1,00

0

2,00

0

3,00

0

4,00

0

10,0

0070

12,0

00

5,00

0

300

XL

L

H

0.3

0.4

0.5

0.7

1.0

2

3

4

5

0.2

7

20

10

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Shaft Speed Smaller Pulley - R.P.M. 6

10,0

0010 20

700

500

400

300

200

100

70

50

40

30

20

10

7

5

4

3

2

1.0

0.7

0.5

0.4

0.3

0.2

0.1

30 40 50 70 100

200

300

400

500

700

1,00

0

2,00

0

3,00

0

4,00

0

5,00

0

7,00

0

Des

ign

Pow

er k

W

3M

14P

14H

14M

8P

8H

8M

5M

Belt Selection Graph forMetric Series Belts

15,0

00

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100200300400500600800

10001200150018002000240028003000350040004500

20Belt Width mm 8M Belt

1.00

30

1.58

50

2.74

RPM

of S

mal

l Pul

ley

100200300500600800

100012001500180020002400280032004000500060008000

100001200014000

Number of Teeth on Small Pulley

12 14 15 16 18 20 21 22 24 26 28 30 32 36 40 44 48 60

.023

.039

.053

.078

.090

.111

.132

.151

.178

.204

.221

.253

.285

.314

.370

.435

.495

.603

.695

.027

.046

.062

.091

.105

.130

.154

.176

.208

.239

.258

.296

.332

.366

.432

.508

.578

.704

.811

.899

.966

.029

.049

.066

.098

.113

.141

.167

.192

.226

.260

.280

.321

.360

.398

.470

.555

.627

.762

.873

.9651.026

.032

.054

.073

.107

.123

.153

.180

.207

.244

.280

.303

.347

.389

.429

.505

.594

.675

.818

.9351.0261.087

.037

.062

.084

.124

.142

.176

.208

.238

.281

.322

.349

.399

.448

.494

.581

.681

.773

.9311.0561.1441.193

.042

.071

.096

.140

.161

.200

.236

.270

.319

.366

.396

.453

.507

.559

.657

.769

.8711.0431.1711.2521.280

.045

.075

.100

.148

.170

.212

.250

.286

.338

.383

.419

.480

.538

.592

.696

.813

.9201.0961.2231.2951.306

.047

.079

.107

.157

.180

.224

.264

.302

.358

.410

.443

.508

.568

.626

.735

.858

.9691.1501.2761.3391.333

.052

.088

.119

.175

.200

.248

.293

.336

.397

.455

.492

.563

.630

.694

.813

.9481.0681.2591.3821.4271.386

.057

.097

.131

.192

.220

.273

.323

.370

.437

.501

.541

.619

.692

.762

.8921.0381.1651.3601.4701.4821.390

.063

.106

.143

.210

.241

.299

.353

.404

.477

.547

.591

.675

.755

.831

.9721.1281.2621.4621.5591.5381.382

.068

.115

.155

.228

.262

.325

.383

.439

.518

.594

.641

.733

.819

.9011.0521.2161.3551.5521.6201.5541.330

.074

.124

.168

.247

.283

.351

.414

.474

.560

.641

.692

.791

.884

.9711.1321.3071.4521.6461.6931.5701.248

.085

.143

.194

.284

.325

.404

.477

.546

.644

.737

.796

.9091.0141.1131.2931.4841.6351.8061.7761.507

.096

.162

.220

.322

.369

.458

.541

.619

.713

.835

.9021.0281.1461.2561.4531.6571.8091.9391.800

.108

.182

.246

.361

.414

.513

.606

.694

.818

.9351.0091.1491.2791.4001.6131.8251.9712.0401.756

.120

.202

.273

.401

.459

.570

.673

.770

.9071.0361.1171.2711.4131.5431.7701.8862.1202.1051.637

.156

.264

.357

.524

.599

.742

.8771.0031.1801.3441.4471.6401.8141.9702.2222.4162.4602.040

.195

.328

.445

.652

.747

.9251.0901.2461.4631.6631.7872.0162.2162.3872.6382.7602.635

7

Power Rating Tables - Standard Metric Timing Belts

Belt Width mm 3M Belt 6 9 15

0.60 1.00 1.89Power Ratings (kW) for 9mm wide 3M Belt

Power Ratings (kW) for 9mm wide 5M Belt

Power Ratings (kW) for 20mm wide 8M Belt

Belt Width mm 14M Belt

Width Factor

55 8540 115 170

1.44 2.32 3.21 4.821.00Power Ratings (kW) for 40mm wide 14M Belt

Width Factor

Belt Width mm 5M Belt 9 15 25

1.00 1.93 3.48Width Factor

72


22

RPM

of S

mal

l Pul

ley

24 26 28 30 32 34 36 38 40 44 48 56 64 72 80

.35

.59

.80

.991.171.351.671.972.262.673.053.303.774.214.424.93

.39

.66

.891.101.301.491.852.192.512.963.393.664.184.664.905.45

.47

.791.071.331.571.802.232.633.013.564.074.395.005.585.856.49

.51

.861.161.441.701.952.422.863.273.864.414.765.426.046.337.027.64

.55

.931.261.561.842.112.623.093.544.174.765.145.856.516.827.548.198.75

Width Factor

85

4.77

.43

.72

.981.211.431.642.042.412.763.263.724.024.595.125.375.97

.591.001.351.671.982.272.813.323.804.485.115.526.276.977.308.068.739.31

.631.071.451.792.122.433.013.554.074.795.475.906.707.447.798.589.289.86

.681.141.541.912.262.593.213.794.345.115.836.287.137.918.279.109.81

10.40

.721.211.642.032.402.763.424.034.615.436.196.677.568.388.769.61

10.3310.92

.811.361.842.282.703.093.834.525.166.076.927.458.439.319.72

1.06211.3511.91

.901.512.042.532.993.434.255.015.726.737.658.239.30

10.2410.6711.6012.3212.82

1.081.812.463.053.604.125.106.016.878.059.149.81

11.0312.0712.5213.4614.08

1.272.132.883.574.224.835.987.048.039.40

10.6411.3912.7313.8314.2915.14

1.462.453.324.124.865.566.888.099.22

10.7612.1412.9714.3915.5015.93

1.652.783.774.675.516.317.799.16

10.4212.1313.6414.5216.0017.06


28

RPM

of S

mal

l Pul

ley

29 30 32 34 36 38 40 44 48 52 56 60 64 68 72 80

2.424.085.526.858.099.27

10.3911.4713.5115.4218.0720.4821.9525.19

2.424.085.526.858.099.27

10.3911.4713.5115.4218.0720.4821.9525.19

2.534.255.767.148.449.67

10.8411.9614.0616.0718.8221.3122.8326.15

2.634.436.007.448.79

10.0711.2812.4514.6616.7219.5722.1423.7127.0929.6931.43

2.854.796.488.049.49

10.8712.1913.4515.8218.0321.0823.8125.4528.9631.5433.10

3.065.156.978.64

10.2111.6913.1014.4516.9919.3622.5925.4727.1930.7933.3134.63

3.285.517.479.26

10.9312.5114.0215.4618.1820.6924.1127.1328.9232.5834.9835.99

3.505.887.979.87

11.6613.3414.9516.4819.3722.0225.6328.7830.6334.3236.5637.19

3.726.258.47

10.5012.3914.1915.8917.5120.5623.3727.1630.4232.3236.0038.0338.19

4.177.019.50

11.7713.8915.8917.7919.6022.9826.0730.1833.6735.6439.19

4.637.78

10.5413.0615.4017.6219.7121.7125.4228.7833.2036.8638.8442.11

5.108.57

11.6014.3716.9419.3721.6723.8427.8831.5036.2039.9641.9244.70

5.579.36

12.6715.6918.5021.1523.6426.0030.3534.2239.1542.9644.8346.94

6.0510.1713.7617.0420.0822.9425.6328.1732.8236.9342.0545.8447.57

6.5410.9914.8718.4021.6824.7527.6430.3635.3139.6344.9048.6050.12

7.0311.8115.9819.7823.3026.5829.6632.5537.7942.3047.6751.2152.45

7.5312.6517.1121.1724.9228.4231.7034.7640.2744.9650.37

8.5414.3519.4123.9928.2232.1535.8039.1945.2050.1655.48

RPM

of S

mal

l Pul

ley

10

100200300500600800

100012001450175020002400280032004000500060008000

100001200014000


12 14 15 16 18 20 21 22 24 26 28 30 32 36 40 44 48 60

.007

.013

.018

.026

.029

.038

.044

.051

.059

.069

.076

.087

.099

.109

.131

.156

.179

.222

.263

.302

.338

.008

.016

.021

.031

.036

.046

.054

.063

.073

.084

.092

.107

.121

.134

.159

.189

.217

.270

.318

.365

.406

.009

.018

.026

.038

.044

.054

.064

.074

.086

.099

.111

.127

.142

.159

.187

.222

.255

.317

.375

.426

.474

.009

.019

.028

.041

.048

.059

.068

.079

.092

.107

.119

.136

.154

.170

.202

.239

.275

.341

.401

.458

.507

.011

.021

.029

.044

.051

.064

.076

.086

.101

.116

.127

.147

.166

.184

.217

.257

.295

.366

.429

.489

.542

.013

.024

.034

.051

.058

.073

.086

.099

.114

.132

.147

.169

.189

.209

.249

.293

.335

.415

.486

.551

.607

.014

.028

.039

.058

.066

.083

.097

.112

.129

.149

.166

.190

.214

.235

.278

.328

.376

.463

.541

.610

.670

.014

.029

.041

.061

.069

.087

.102

.119

.136

.157

.174

.200

.225

.249

.293

.346

.396

.488

.567

.639

.700

.016

.031

.044

.064

.074

.092

.109

.126

.144

.167

.184

.212

.237

.262

.310

.365

.418

.512

.595

.668

.730

.018

.036

.049

.073

.083

.102

.121

.139

.161

.185

.204

.234

.262

.290

.341

.403

.459

.562

.652

.727

.790

.019

.039

.054

.079

.091

.109

.132

.152

.175

.204

.224

.257

.287

.318

.373

.439

.501

.610

.705

.781

.843

.021

.044

.059

.087

.099

.124

.146

.167

.192

.222

.245

.280

.313

.346

.406

.478

.542

.660

.758

.838

.898

.023

.048

.064

.094

.107

.134

.159

.182

.209

.240

.265

.303

.340

.375

.439

.516

.584

.708

.810

.888

.942

.026

.053

.071

.109

.117

.146

.172

.197

.227

.260

.287

.327

.366

.403

.473

.554

.627

.756

.861

.939

.989

.029

.061

.083

.119

.137

.169

.199

.227

.262

.300

.330

.376

.421

.463

.541

.630

.712

.849

.9541.0221.050

.034

.071

.096

.137

.157

.194

.227

.258

.297

.340

.375

.426

.476

.522

.610

.708

.798

.9441.0471.1051.112

.039

.081

.109

.156

.177

.219

.257

.292

.335

.381

.419

.478

.532

.584

.678

.786

.8811.0301.1231.1571.122

.046

.091

.122

.175

.199

.245

.287

.327

.373

.424

.466

.529

.589

.645

.748

.864

.9641.1171.2011.2101.133

.058

.116

.154

.222

.252

.308

.361

.411

.469

.534

.587

.665

.738

.806

.9311.0621.1701.3031.3141.186

100200300400500600700800

10001200150018002000250030003500

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


8

Power Rating Tables - High Power& Panther Timing Belts

Belt Width mm 8H Belt


22

RPM

of S

mal

l Pul

ley

24 26 28 30 32 34 36 38 40 44 48 56 64 72 80

Width Factor

20 30 50 85

1.00 1.58 2.74 4.77Power Ratings (kW) for 20mm wide Higher Power Plus 8H Belt

10205070

100200300500700

10001200150018002000250030003500400045005000

0.070.130.340.470.621.051.422.092.683.514.024.755.445.886.947.938.879.76

10.6111.42

0.070.150.370.520.691.161.572.302.963.874.435.235.996.487.648.739.76

10.7311.6512.53

0.080.160.400.560.751.271.722.523.244.234.845.726.557.088.359.53

10.6511.7012.6913.63

0.090.170.430.600.821.371.862.733.524.595.266.217.117.699.06

10.3411.5412.6713.7314.72

0.090.180.460.640.881.492.012.953.804.965.686.717.688.309.78

11.1512.4413.6414.7615.81

0.100.200.490.690.951.602.163.174.085.336.117.218.258.92

10.4911.9613.3314.6015.7916.88

0.100.210.520.731.021.712.323.404.375.716.547.718.839.54

11.2212.7714.2215.5716.8117.94

0.110.220.550.771.081.822.473.624.666.086.978.229.40

10.1611.9413.5915.1116.5217.8118.99

0.120.230.580.821.151.942.623.854.956.467.408.739.98

10.7812.6714.4016.0017.4718.8120.02

0.120.250.610.861.222.052.784.075.246.847.839.24

10.5611.4113.3915.2216.8918.4219.8021.02

0.130.270.670.941.352.283.094.535.837.618.71

10.2711.7412.6714.8516.8418.6520.2821.7322.98

0.150.290.741.031.472.513.415.006.438.389.59

11.3112.9113.9316.3118.4620.3922.1023.59

0.170.340.861.201.722.994.055.947.639.95

11.3813.4015.2916.4719.2221.6523.7825.60

0.200.390.981.371.963.474.706.898.86

11.5413.2015.5217.6719.0222.1024.7727.03

0.220.441.101.552.213.965.367.86

10.1013.1515.0317.6520.0621.5624.9427.79

0.250.491.231.722.454.456.048.84

11.3614.7816.8719.7922.4524.0927.73

Belt Width mm 14H Belt


28

RPM

of S

mal

l Pul

ley

29 30 32 34 36 38 40 44 48 52 56 60 64 68 72 80

Width Factor

55 8540 115 170

1.44 2.32 3.21 4.821.00Power Ratings (kW) for 40mm wide Higher Power Plus 14H Belt

10205070

100200300500700

100012001500180020002500300035004000

0.390.781.962.743.926.879.31

13.6517.5422.8626.1530.7635.0537.7443.9349.3654.0057.84

0.410.812.032.844.067.169.70

14.2218.2823.8227.2432.0436.4939.3845.6751.2455.9659.79

0.420.842.102.944.207.45

10.1014.8019.0324.7928.3433.3237.9340.8247.4153.1157.8961.71

0.450.902.243.144.488.04

10.9015.9720.5226.7330.5535.8940.8243.9050.8756.8161.6865.41

0.480.952.383.334.768.64

11.7117.1522.0428.6932.7838.4843.7346.9954.3260.4665.36

0.501.012.523.535.049.24

12.5218.3523.5730.6735.0241.0946.6450.0857.7464.0468.91

0.531.062.663.725.329.85

13.3519.5525.1132.6637.2943.7149.5653.1761.1367.56

0.561.122.803.925.60

10.4614.1820.7726.6734.6739.5646.3452.4956.2564.5070.99

0.621.233.084.316.16

11.7115.8623.2329.8238.7344.1551.6258.3362.4071.10

0.671.343.364.706.72

12.9717.5825.7333.0242.8348.7856.9264.1668.4977.50

0.731.463.645.107.28

14.2619.3128.2736.2546.9853.4562.2369.9574.50

0.781.573.925.497.84

15.5621.0830.8439.5351.1658.1467.5475.6980.40

0.841.684.205.888.40

16.7922.8633.4442.8455.3762.8572.8381.3586.19

0.901.794.486.278.96

17.9124.6736.0746.1859.6067.5678.1086.9391.82

0.951.904.766.669.5219.0326.4938.7249.5463.8672.2983.3392.40

1.012.025.047.06

10.0820.1428.3341.4052.9468.1377.0188.51

1.122.245.607.84

11.2022.3832.0746.8259.7976.6986.4198.69

Belt Width mm 8P Belt


22

RPM

of S

mal

l Pul

ley

24 26 28 30 32 34 36 38 40 44 48 56 64 72 80

Width Factor

20 30 50 85

1.00 1.50 2.50 4.25Power Ratings (kW) for 20mm wide RPP Gold 8P Belt

10205070

100200300500700

10001200150018002000250030003500400045005000

0.080.150.340.460.631.141.632.543.404.535.226.207.137.749.18

10.5511.8513.1014.2915.43

0.090.170.380.500.691.251.782.783.734.985.736.817.838.49

10.0711.5713.0014.3515.6516.89

0.100.180.410.550.751.361.943.024.055.436.257.428.549.26

10.9712.6014.1415.6117.0018.33

0.110.200.440.590.811.472.093.274.385.886.778.049.24

10.0211.8813.6315.2916.8618.3519.76

0.120.210.470.630.871.582.253.514.706.337.298.659.95

10.7912.7814.6616.4318.1119.6921.18

0.120.230.510.680.931.692.413.765.036.797.819.28

10.6711.5613.6915.6917.5719.3521.0222.59

0.130.240.540.720.991.802.574.005.367.248.349.90

11.3812.3314.6016.7218.7220.5922.3423.97

0.140.260.570.771.051.912.724.255.697.708.87

10.5212.1013.1115.5117.7519.8521.8223.6525.34

0.150.270.610.811.112.032.884.496.028.179.40

11.1512.8213.8816.4218.7820.9923.0424.9426.69

0.160.290.640.861.172.143.044.746.358.639.93

11.7813.5414.6617.3319.8122.1124.2526.2228.01

0.170.320.710.951.292.363.365.247.019.56

11.0013.0514.9916.2219.1521.8624.3526.6428.7230.59

0.190.350.771.041.412.593.685.737.68

10.5012.0814.3216.4417.7920.9723.8926.5628.9831.15

0.220.410.911.221.663.044.326.749.02

12.3914.2416.8719.3420.9124.5827.9030.8733.48

0.260.471.051.401.913.494.977.74

10.3614.3016.4319.4422.2624.0328.1531.8135.00

0.290.531.181.582.163.955.628.75

11.7116.2218.6222.0125.1627.1431.6735.59

0.330.591.321.772.414.416.279.77

13.0718.1520.8224.5828.0530.2135.10

Belt Width mm 14P Belt


28

RPM

of S

mal

l Pul

ley

29 30 32 34 36 38 40 44 48 52 56 60 64 68 72 80

Width Factor

55 8540 115 170

1.37 2.12 2.87 4.251.00Power Ratings (kW) for 40mm wide RPP Gold 14P Belt

10205070

100200300500700

100012001500180020002500300035004000

0.671.232.783.745.139.47

13.5521.2928.6538.5844.7853.6762.1667.6180.5892.62

103.75113.94

0.691.282.883.885.329.83

14.0722.1029.7440.1146.5555.7964.5970.2583.6696.09

107.53117.96

0.721.332.994.025.52

10.1914.5822.9130.8341.6548.3357.9167.0372.8886.7599.55

111.29121.93

0.771.423.204.315.91

10.9115.6224.5433.0244.7351.9062.1671.9178.1692.91

106.44118.74129.75

0.821.523.414.606.30

11.6416.6626.1735.2147.8455.4966.4376.8183.4499.05

113.27126.07

0.871.613.634.896.70

12.3717.7127.8137.4150.9659.0970.7081.7288.73

105.17120.04133.28

0.921.713.845.187.10

13.1018.7629.4539.6254.1062.7275.0186.6394.02

111.26126.73

0.981.804.065.477.50

13.8419.8131.1041.8357.2566.3579.3291.5599.30

117.32133.34

1.082.004.496.058.30

15.3221.9234.4246.2763.6073.6687.96

101.37109.84129.31

1.192.194.936.649.10

16.8024.0537.7550.7469.9981.0196.62

111.18120.31141.08

1.292.395.377.239.91

18.3026.1941.0955.2176.4288.40

105.29120.95130.70

1.402.585.817.82

10.7219.8028.3344.4559.7182.8895.80

113.95130.65140.98

1.502.786.258.42

11.5421.3130.4947.8264.2189.36

103.22122.58140.28151.13

1.612.986.709.02

12.3622.8232.6551.2068.7295.87

110.64131.19149.81161.13

1.723.177.149.62

13.1924.3434.8354.6073.24

102.39118.07139.75159.23

1.833.377.59

10.2214.0225.8737.0158.0077.77

108.93125.48148.26

2.043.778.49

11.4415.6828.9441.3964.8286.83

122.02140.28165.08

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


RPM

of S

mal

l Pul

ley

9

Belt Width Reference

Belt Width Factor

050 075 100

0.42 0.71 1.00

Power Rating Tables -Classical Timing BeltsPower Ratings (kW) for 3/8” wide XL Series Belts (1/5” Pitch)

Number of Teeth Small Pulley

10 11 12 14 15 16 18 20 21 22 24 26 28 30 32 36 40100200300400500600800

1000120014001500160017502000240028003000320035004000450050006000700080009000

10000

.004

.008

.012

.016

.020

.025

.034

.042

.050

.059

.062

.070

.076

.087

.004

.009

.014

.018

.023

.027

.036

.046

.055

.064

.070

.076

.081

.095

.112

.132

.140

.151

.165

.005

.010

.015

.020

.025

.030

.040

.050

.060

.071

.075

.084

.090

.102

.123

.144

.155

.165

.180

.205

.231

.257

.006

.011

.017

.023

.029

.035

.048

.060

.071

.084

.090

.096

.104

.119

.142

.167

.180

.190

.210

.240

.269

.297

.006

.012

.019

.025

.031

.037

.050

.065

.077

.090

.096

.102

.112

.130

.155

.180

.192

.200

.225

.288

.310

.380

.441

.007

.013

.020

.027

.033

.040

.054

.069

.081

.096

.102

.111

.120

.136

.165

.192

.205

.220

.239

.272

.306

.340

.405

.468

.007

.015

.022

.029

.037

.046

.063

.077

.091

.109

.115

.123

.134

.155

.184

.215

.230

.247

.268

.305

.343

.380

.451

.522

.589

.654

.713

.008

.016

.025

.033

.042

.050

.069

.086

.102

.119

.127

.136

.151

.171

.205

.240

.257

.272

.299

.340

.380

.420

.500

.575

.648

.713

.775

.009

.018

.026

.035

.044

.054

.071

.090

.108

.125

.134

.144

.157

.180

.215

.251

.267

.286

.312

.357

.400

.441

.522

.600

.675

.742

.802

.009

.019

.028

.037

.046

.056

.075

.094

.113

.132

.140

.150

.165

.188

.224

.263

.280

.299

.326

.372

.416

.460

.545

.625

.698

.769

.827

.010

.020

.030

.040

.050

.060

.084

.102

.123

.144

.155

.165

.179

.205

.247

.286

.305

.326

.355

.405

.453

.500

.589

.675

.750

.819

.880

.011

.022

.033

.044

.055

.066

.088

.110

.132

.155

.167

.177

.194

.222

.266

.309

.331

.352

.384

.436

.487

.537

.632

.719

.795

.863

.919

.012

.024

.036

.048

.060

.071

.096

.119

.142

.167

.180

.190

.210

.240

.286

.332

.357

.378

.413

.468

.522

.575

.675

.763

.840

.907

.959

.012

.025

.038

.050

.063

.077

.102

.130

.155

.180

.192

.205

.224

.257

.305

.357

.380

.405

.441

.500

.555

.610

.713

.802

.880

.942

.986

.013

.027

.040

.054

.069

.081

.111

.136

.165

.192

.205

.220

.239

.272

.326

.378

.405

.430

.468

.529

.589

.648

.750

.825

.915

.9781.030

.015

.029

.046

.063

.077

.091

.123

.155

.184

.215

.230

.247

.268

.305

.365

.423

.451

.479

.522

.589

.654

.713

.819

.898

.9781.035

.016

.033

.050

.069

.086

.102

.136

.171

.205

.240

.257

.272

.299

.340

.405

.468

.500

.529

.575

.648

.713

.775

.880

.9591.030

Belt Width Reference

Belt Width Factor

075 100 150 200 300

0.71 1.00 1.56 2.14 3.36

RPM

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Power Ratings (kW) for 1” wide L Series Belts (3/8” Pitch)Number of Teeth Small Pulley

12 13 14 15 16 17 18 19 20 21 22 24 26 28 30 32 36 40100200300400500600700800

10001200140015001750200022002500280030003200350040004500500055006000

0.040.100.140.190.230.280.330.370.460.560.650.700.810.931.011.161.291.38

0.050.100.150.200.250.310.350.400.510.600.710.760.871.011.101.251.401.491.591.73

0.050.110.160.220.280.330.380.430.540.660.760.810.951.081.191.341.501.601.701.862.11

0.060.120.170.230.290.350.410.460.580.700.810.871.011.161.271.431.601.711.821.982.242.502.742.973.20

0.060.130.190.250.310.370.430.500.620.750.870.931.081.231.351.531.711.821.942.112.392.652.923.153.39

0.070.130.200.260.330.400.460.530.660.790.920.981.151.311.431.621.811.932.042.232.512.803.063.313.54

0.070.140.210.280.350.420.490.560.700.840.971.041.211.381.511.721.912.042.162.352.662.943.223.473.71

0.070.150.220.300.370.440.510.590.740.881.031.101.281.451.601.812.012.142.272.472.783.073.363.613.84

0.070.160.230.310.390.470.540.620.780.931.081.161.341.531.681.892.102.252.382.582.903.213.493.753.98

0.080.160.250.330.410.490.570.620.810.971.131.211.411.601.751.982.212.352.492.703.033.343.633.884.12

0.090.170.250.340.430.510.600.690.851.011.191.271.481.681.842.072.312.452.602.813.163.473.764.014.24

0.100.190.280.370.470.560.650.750.931.111.291.381.601.821.992.252.492.652.803.033.393.713.994.234.42

0.100.200.310.400.510.600.710.811.001.201.401.491.731.962.152.422.682.843.013.253.603.924.204.434.59

0.110.220.330.430.540.650.760.871.081.291.501.601.862.102.302.592.863.033.203.443.804.124.374.574.68

0.120.230.350.460.580.700.810.931.161.381.601.721.982.252.452.753.033.213.393.633.984.294.524.674.74

0.130.250.370.500.620.750.870.981.231.471.711.822.112.372.602.913.203.393.563.804.164.444.634.724.72

0.140.280.420.560.700.840.971.111.381.651.912.042.352.662.883.213.513.713.884.124.434.664.73

0.160.310.470.620.780.931.081.231.531.822.102.252.592.903.163.503.803.994.164.384.634.75

RPM

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Power Ratings (kW) for 1” wide H Series Belts (1/2” Pitch)Number of Teeth Small Pulley

14 16 18 19 20 21 22 24 26 28 30 32 36 40 44 48100200300400500600700800900

10001100120014001500160017502000220025002800300032003600400044004800500054006000

0.190.370.550.740.931.111.291.481.661.842.03

0.210.430.630.841.051.271.481.691.892.102.312.522.943.153.363.664.18

0.240.480.720.951.191.421.661.892.132.362.602.833.303.543.774.124.685.145.826.486.927.35

0.250.500.751.001.251.511.752.002.252.502.752.993.483.733.984.334.945.426.126.827.277.738.459.35

0.260.530.791.051.321.581.842.102.362.632.893.153.663.924.184.565.195.696.437.157.638.099.009.88

10.7111.5011.8812.6013.57

0.280.550.831.111.391.661.932.212.482.763.033.303.844.114.384.785.455.976.747.497.988.479.41

10.3111.1711.9712.3513.0814.04

0.290.580.871.161.451.742.032.312.602.893.183.464.024.304.595.015.696.247.047.838.348.849.82

10.7411.6212.4412.8213.5514.50

0.310.630.951.271.581.892.212.522.833.153.463.774.384.684.995.456.186.777.638.479.019.54

10.5611.5212.4113.2113.5914.2715.12

0.340.691.031.371.722.052.392.733.073.413.744.074.745.075.395.886.687.308.229.119.68

10.2411.3012.2813.1813.9814.3514.99

0.370.741.111.481.842.212.572.943.303.664.034.395.105.455.806.317.167.838.809.74

10.3310.9112.0013.0013.8914.6715.01

0.400.791.191.581.982.362.763.153.543.924.304.695.455.826.196.747.648.349.35

10.3210.9411.5312.6413.6314.49

0.430.841.271.692.102.522.943.363.774.184.594.995.806.196.587.168.118.849.90

10.9011.5312.1413.2414.20

0.480.951.421.892.362.833.303.774.234.695.155.596.486.927.367.999.039.82

10.9512.0012.6513.2614.34

0.531.051.582.102.633.153.664.184.695.195.696.197.167.648.118.809.90

10.7411.9212.9913.6314.2215.20

0.581.161.742.312.893.464.034.595.145.696.246.777.838.348.849.58

10.7411.6212.8213.8814.4915.02

0.631.271.892.523.153.774.394.995.596.196.777.368.479.029.55

10.3211.5312.4313.6314.6415.20

Note: Shaded area indicates pulley speeds which can be used with a reduction in belt service life.

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Timing Belt Drives - Installation

10

Cross+Morse Timing Belt Drives will give excellent performance andlong life provided they are correctly installed. Pulleys must be rigidlymounted and correctly aligned, and belts installed with a snug fit nothighly tensioned. One pulley should be flanged in all drives, and bothpulleys flanged on drives with vertical shafts.

Pulley Manufacture and ReboreStandard Pulleys are manufactured to high levels of concentricity.When plain bore pulleys are re-machined it is essential thatconcentricity between bore and pulley O.D. is kept within thefollowing:-

Pulleys up to 200mm diameter - 0.10mm total run-out.

Pulleys over 200mm diameter - 0.05/100mm dia. total run-outto maximum 0.20mm.

Also the bore of the pulley must be perpendicular to side faces within0.5mm/100mm dia. total run-out to a max. of 0.5mm.In manufacture pulleys of 200mm and above diameter are staticallybalanced to levels indicated below.

This level of balancing is adequate for the majority of applications, butwhere belt speeds exceed 30 m/s pulleys will need to be furtherdynamically balanced to 1.8 x 10-3 Nm. Cast Iron pulleys must neverbe run over 30 m/s belt speed.

Installation and Alignment of PulleysClean all oil, grease and dirt from pulleys, ensuring grooves and boreare clean and free from burrs. Pulleys should be assembled onto shaftsand rigidly locked in place by taper bush or close fit bore and key onparallel bore pulleys. Alignment of shafts and pulleys is essential asmisalignment will result in unequal belt tension and edge wear. Tocheck alignment place a straight edge against the outside edges of thepulleys and position pulleys so that the straight edge touches the twooutside and two inside edges of the pulleys. Alignment of pulleysshould be confirmed after installation of belt.Check the rigidity of the supporting framework. Shafts must be wellsupported to prevent distortion with resultant changes in centredistance which will result in belt slackness causing jumping of teethunder high starting or shock load conditions.

Timing Belt InstallationTiming belts are susceptible to kinking, and should never be forced orprised on to pulleys. Reduction of centre distance or removal oftensioning idler are normal methods to enable belt fitting. For fixedcentre drives without idler the belt must be fitted to pulley prior tomounting on shafts or support bearings. To enable correct fitting wherecentres can be adjusted, the centres must be able to be reduced by thevalue in the table below under “allowance for installation” andincreased by the tensioning allowance, from the nominal centre distance.

Belt TensionTiming Belt Drives do not require as much tension as other beltdrives that depend on friction to transmit the load. The belt shouldbe installed with a snug fit, neither taut or loose. The correct level oftension can be determined by measuring the force necessary todeflect the belt an amount equal to 1/64th of its span centres ‘S’.Values for measuring forces recorded on a spring balance appliedmid-span of the belt should be as shown in the table below. Thevalue recorded for a drive should be within 10% of these values.These measurements give correct tension for most drives, but forhigh shock load applications consult Cross+Morse Engineering.

High Power Metric and Open Ended BeltsThe correct tensioning of RPP Plus and RPP Gold High Power beltsincludes consideration of transmitted power, operating speeds, andnumber of teeth in pulleys.Open ended belts are normally tensioned according to max. linearload to be transmitted, to minimise any backlash on reversing drives.Advice on correct tensioning of those belts can be supplied byCross+Morse technical dept, as well as assistance in belt selection.

Belt StorageTo ensure correct functioning of the belts and prevent prematurefailure, belts must be protected against sharp bending or creasing.They should be stored in a cool, dry, well ventilated room withintemperature range 15-20˚C. It is preferable to keep polyurethanebelts in a darkened environment.

Use of IdlersInside or outside idlers used for tensioning or power take off shouldbe on the slack side of the belt. Inside idlers must be grooved unlessthe number of grooves is more than 40, when flat idlers can be used.Flat faced idlers must not be crowned, and all idlers should be equalto, or greater than the smallest drive pulley. Idlers must be of fixedtype, and positioned so that the arc of contact is kept to a minimum.

Pulley Face Widthmm

Up to 60 200-300301-600

610

3M063M093M155M095M155M258M208M308M508M85

14M4014M5514M8514M11514M170

.17

.29

.54

.42

.811.461.933.055.309.205.608.00

13.0018.0027.00

6T2.56T510T516T525T516T1025T1032T1050T10XL037XL050L050L075L100H100H150H200H300

0.070.180.300.480.750.901.401.802.800.300.400.61.01.43.14.86.610.4

61-99

200-300301-600

601-1000over 1000

10152030

100 and over

200-300301-600

601-1000over 1000

20304060

Pulley Diametermm

Max. Unbalancegm

Belt Size F kg Belt Size F kg

Belt SizeOne Pulley Flanged Both Pulleys Flanged

TensioningAllowance

Allowance for Installation

3M5M8M14MXLLHXH

T2.5AT5 &T5

AT10 & T10

12.419.626.543.315.919.122.045.015.317.021.5

20.832.242.366.927.431.736.269.027.930.035.0

2.02.53.04.00.61.01.52.00.50.81.0

d = s/64mm

Values for Measuring Force

Std. Metric BeltsClassical and

Polyurethane Belts

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11

Metric Series Timing Belts

High Power Metric Belts (p 13)New RPP Plus Belts provide increased torque and powercapacity. Available 8mm (8H) and 14mm (14H) pitches, theyoperate on standard metric pulleys to transmit up to 470kW.Body of the belt is manufactured from reinforced polychloro-prenic compound with exceptional resistance to flex fatigue,ozone, heat, and mineral oils. The teeth are faced withgraphite impregnated nylon for high strength and low fric-tion. A high module resistant fibre cord gives high breakingstrength with reduced elasticity.

As with classical series belts, power is transmitted by a glassfibre tension member spirally wound across the width of thebelt. The glass fibre cord ensures length stability combinedwith high strength and resistance to failure under repeatedflexing. The tension member is bonded into a synthetic rub-ber body moulded integral with the drive teeth. The rubbercompound selected has complete absence of age deformationand high resistance to mineral lubricating oils, heat, ozoneand flex fatigue. A tough nylon fabric is bonded to the driveface of the belt, which by a patented treatment is self lubricat-ing, for low coefficient of friction with exceptional resistanceto abrasion and shear, for high drive efficiency with long beltand pulley life.

Standard Metric Belts (pp 12)The Megadyne RPP series of belts provide the ideal solutionfor most drives. Totally interchangeable with other deep pro-file belts, they are available in 4 pitch sizes; 3mm (3M), 5mm(5M); 8mm (8M), and 14mm (14M). Standard drives are suit-able for applications from fractional kW up to 250kW powerrating.In order to transmit higher powers tooth contact between beltand pulley has to be increased. To achieve this a parabolictooth form with contact angle increasing from tooth base totip was adopted, enabling a deeper tooth form than classicalbelts. The improved level of meshing, combined withsmoother engagement of drive, increased resistance to toothshear and tooth jumping enabled higher torque transmissionwith reduced installation tension. Megadyne belts have anindentation at the top of the tooth to further improve meshingbetween belt and pulley by deformation of the tooth tip allow-ing precise moulding of tooth to pulley contours, reducingfrictional wear. The indentation also allows air to escape, fur-ther reducing noise levels.

Standard High Torque Metric Timing Belt DrivesTo provide optimum performance with a standard range ofMetric High Torque Drive Pulleys, Cross+Morse selected theMegadyne deep profile. RPP series belts.The RPP belts are, combined with a standard range of pulleyto provide “off the shelf” drives in 4 pitches; 3mm (3M) 5mm(5M), 8mm (8M), and 14mm (14M), able to transmit up to700kW, or drive shafts to 15,000 r.p.m.

The pulleys are available with 3 methods of shaft connection;Pilot bored, pp 15-18, for finishing with sized bore, keywayand setscrews can, optionally be supplied finished; taperbored for fitting standard taper bushes pp 21-22; and for opti-mum connection the Avante system, pp 19-20, for connectionwith shaft clamping elements.

For even higher powered drives, up to 700kW, the RPP Goldseries belts, were developed in 8mm (8P) and 14mm (14P)pitches. These use Aramid reinforced polychloroprene for thebody of the belt with double layer graphite impregnatednylon facing for the teeth. The tension cables are in Kevlar formaximum strength with flexibility. The belts provide all theadvantages of RPP Plus with additional load capacity, excel-lent anti-static properties, and ability to use idlers on the backof the belt.

Anti Static BeltsBelts conforming to BS2050 standards can be supplied for the8M and 14M belt sizes. These belts are for application within chemical plants, oil refineries, and in mines.

The RPP Plus & RPP Gold high power belts have anti-staticproperties as standard.

Anti Static BeltsBelts conforming to BS2050 standards can be supplied for the8M and 14M belt sizes. These belts are for application within chemical plants, oil refineries, and in mines.

Double sided Belts (p14)To enable power to be taken from both sides of the belt totransfer direction of drive. Available in 5M and 14M toothform to operate on standard Metric pulleys.

These belts have moulded teeth on both sides with nylonjacket, to enable full torque transmission. Ideal for Serpentinedrives, and multi shaft arrangements.

‘TIL’ Long length BeltsSpecial manufacturing method enables extra long length end-less belts to be manufactured.

Ideal for long centre distance drives where full torque trans-mission is required.

‘TIL’ Long length BeltsSpecial manufacturing method enables extra long length end-less belts to be manufactured.

Open Ended Metric Belts (pp23-26)Long length (up to 150 Metres) open ended belts are availablein both standard neoprene rubber construction, and in Polyurethane with RPP tooth form.Standard construction belts are available in 3M and 5M forms in widths 9,12 or 15mm; 5M and 8M form in widths 20 & 25mm and 8M form 30mm wide.For increased Power capacity the “Green Belt” is available as an alternate/replacement, these being Polyurethane belts

manufactured to tight tolerance with standard RPP tooth pro-file for maximum power transmission.The teeth are faced with green nylon fabric giving reducednoise and friction. High strength steel tension member giveshigh breaking strengths with extremely low elongation. Thebelts are available in 5mm, 8mm, and 14mm pitch for lineardrive applications, and are particularly suitable in drives withfrequent speed change.

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90-3M15105-3M15129-3M15141-3M15144-3M15147-3M15150-3M15159-3M15168-3M15174-3M15177-3M15180-3M15186-3M15195-3M15201-3M15204-3M15210-3M15213-3M15225-3M15231-3M15240-3M15243-3M15246-3M15252-3M15255-3M15264-3M15267-3M15270-3M15

89

101011111112121313141415161718181919192020

12

Metric Series Timing Belts

5mm Pitch Standard Metric Belts Type 5MBelt

Lengthmm

No.Teeth

9mm Wide Belt 15mm Wide Belt 25mm Wide Belt

Cat. No. Cat. No. Cat. No.

180225235245255265270285295300305325345350375400420425450455460465475

3645474951535457596061656970758084859091929395

180-5M9225-5M9235-5M9245-5M9255-5M9265-5M9270-5M9285-5M9295-5M9300-5M9305-5M9325-5M9345-5M9350-5M9375-5M9400-5M9420-5M9425-5M9450-5M9455-5M9460-5M9465-5M9475-5M9

1316161718191920212121232425262829303232323333




Lengthmm

No.Teeth


Cat. No. Wt gms Cat. No. Cat. No.

90105129141144147150159168174177180186195201204210213225231240243246252255264267270

30354347484950535658596062656768707175778081828485888990

2233333334444444445555555566


3344455555566666677778888888

557778889999

10101011111112121213131313141414


Wt gms

Wt gms

Wtgms

Wtgms

510-3M15513-3M15522-3M15531-3M15537-3M15564-3M15570-3M15576-3M15579-3M15597-3M15600-3M15633-3M15648-3M15669-3M15711-3M15735-3M15738-3M15756-3M15804-3M15882-3M15945-3M15

1062-3M151125-3M151245-3M151263-3M151500-3M151530-3M151863-3M15

No.Teeth



510513522531537564570576579597600633648669711735738756804882945

1062112512451263150015301863

170171174177179188190192193199200211216223237245246252268294315354375415421500510621

11111111111212121212121313141515151617181922232626313238


1062-3M61125-3M61245-3M61263-3M61500-3M61530-3M61863-3M6

16161616171718181818192020212223232325272933353839464758

26262727282929303031313333343738383941454955586465777996

Wt gms

Wt gms


1062-3M91125-3M91245-3M91263-3M91500-3M91530-3M91863-3M9

BeltLength

mm

BeltLength

mmNo.

Teeth



276285288291297300312318327330336339345357363375384390393405420432447474480486489501

9295969799

100104106109110112113115119121125128130131135140144149158160162163167

666666677777777888889991010101010


999999

10101010101011111112121212131313141515151515

14151515151516161717171718181919202020212222232425252526

Wt gms

Wt gms



25mm Wide BeltNo.Teeth

9mm Wide Belt 15mm Wide Belt


900-5M9935-5M9940-5M9950-5M9980-5M9

1000-5M91050-5M91100-5M91125-5M91195-5M91200-5M91240-5M91270-5M91420-5M91595-5M91690-5M91790-5M91800-5M91895-5M92000-5M92250-5M92525-5M9

180187188190196200210220225239240248254284319338358360379400450505

383939404142444647505052536067417576808495

106

900-5M15935-5M15940-5M15950-5M15980-5M15


6365666769707477798484878999

112118125126133140158177

900-5M25935-5M25940-5M25950-5M25980-5M25


106109110111115117123129132140140145149166187198209211222234263295

Wtgms

Wtgms

Wtgms

900935940950980

10001050110011251195120012401270142015951690179018001895200022502525

BeltLength

mmWtgms

2126272930313233353536384041444749505353545456


Lengthmm

No.Teeth


Cat. No. Wt kg Cat. No. Wt kg Cat. No. Wt kg

320480536560600632640680720800840880920960

104010801120

320-8M20480-8M20536-8M20560-8M20600-8M20632-8M20640-8M20680-8M20720-8M20800-8M20840-8M20880-8M20920-8M20960-8M20

1040-8M201080-8M201120-8M20

406067707579808590

100105110115120130135140

0.0360.0540.0610.0630.0680.0710.0720.0770.0810.0900.0950.0990.1040.1080.1180.1220.127

320-8M30480-8M30536-8M30560-8M30600-8M30632-8M30640-8M30680-8M30720-8M30800-8M30840-8M30880-8M30920-8M30960-8M30

1040-8M301080-8M301120-8M30

0.0540.0810.0910.0950.1020.1070.1080.1150.1220.1360.1420.1490.1560.1630.1760.1830.190

320-8M50480-8M50536-8M50560-8M50600-8M50632-8M50640-8M50680-8M50720-8M50800-8M50840-8M50880-8M50920-8M50960-8M50

1040-8M501080-8M501120-8M50

0.0900.1360.1510.1580.1700.1790.1810.1920.2030.2260.2370.2490.2600.2710.2940.3050.316

320-8M85480-8M85536-8M85560-8M85600-8M85632-8M85640-8M85680-8M85720-8M85800-8M85840-8M85880-8M85920-8M85960-8M85

1040-8M851080-8M851120-8M85

0.1540.2310.2570.2690.2880.3040.3070.3270.3460.3840.4030.4230.4420.4610.4990.5190.538

85mm Wide Belt

Cat. No. Wt kg


Lengthmm

No.Teeth



966119014001610176417781890210023102450259028003150336035003850432645784956

966-14M401190-14M401400-14M401610-14M401764-14M401778-14M401890-14M402100-14M402310-14M402450-14M402590-14M402800-14M403150-14M403360-14M403500-14M403850-14M404326-14M404578-14M404956-14M40

6985

100115126127135150165175185200225240250275309327354

0.380.470.550.630.700.700.740.830.910.971.021.101.241.321.381.521.701.801.95


0.520.640.760.870.960.961.021.141.251.331.401.521.711.821.902.092.342.482.68


0.811.001.171.351.481.491.581.761.932.052.172.342.642.812.933.223.623.834.15


1.091.351.591.822.002.012.142.382.622.782.933.173.573.813.964.364.905.195.61


1.621.992.342.702.952.983.163.523.874.104.344.695.275.635.866.457.247.678.30


Cat. No. Wt kg Cat. No. Wt kg

BeltLength

mmNo.

Teeth



12001224128013521440146416001760180020002400260028003048328036004400


150153160169180183200220225250300325350381410450550

0.1360.1380.1450.1530.1630.1650.1810.1990.2030.2260.2710.2940.3160.3440.3710.4070.497


0.2030.2070.2170.2290.2440.2480.2710.2960.3050.3390.4070.4410.4750.5170.5560.6100.746


0.3390.3460.3620.3820.4070.4140.4520.4970.5090.5650.6780.7350.7910.8610.9271.0171.243


0.5760.5880.6150.6490.6920.7030.7680.8450.8640.9611.1531.2491.3451.4641.5751.7292.113

85mm Wide Belt

Cat. No. Wt kg

500525535565575580600610635640670675700705710725740750755800835850890

BeltLength

mmNo.

Teeth




100105107113115116120122127128134135140141142145148150151160167170178

2122222424242526272728282930303031313234353637


3537374040414243444547474949505152525356586062


59616366676870717475787982828385878788949899104

Wtgms

Wtgms

Wtgms

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

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9 E

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os

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9661092119014001610176417781890210023102450259028003150336035003850432645784956

10801120120012241280135214401464160017601800200022002400260028003048328036004400

288320352384408480536544560600632640680720800840880920960

1040

13

High Power Metric Timing Belts

High Power RPP Plus and RPP Gold BeltsThe improved design RPP Plus and RPP Gold Belts can transmit higher torques whilst still operating on standard HTD pulleys.Replacing a standard metric belt with the equivalent RPP Plus belt can enable up to 100% more torque transmission, whilst theequivalent RPP Gold belt provides up to 200% more. Both are available in 8mm and 14mm pitch.

8mm Pitch RPP Plus High Power Belts Type 8HBelt

Lengthmm

No.Teeth

20mm Wide Belt

Cat. No. Wt kg

30mm Wide Belt

Cat. No. Wt kg

50mm Wide Belt

Cat. No. Wt kg

85mm Wide Belt

Cat. No. Wt kg

288-8H20320-8H20352-8H20384-8H20408-8H20480-8H20536-8H20544-8H20560-8H20600-8H20632-8H20640-8H20680-8H20720-8H20800-8H20840-8H20880-8H20920-8H20960-8H20

1040-8H20

3640444851606768707579808590

100105110115120130

0.0330.0360.0400.0430.0460.0540.0610.0610.0630.0680.0710.0720.0770.0810.0900.0950.0990.1040.1080.118


1040-8H30

0.0490.0540.0600.0650.0690.0810.0910.0920.0950.1020.1070.1080.1150.1220.1360.1420.1490.1560.1630.176


1040-8H50

0.0810.0900.0990.1080.1150.1360.1510.1540.1580.1700.1790.1810.1920.2030.2260.2370.2490.2600.2710.294


1040-8H85

0.1360.1540.1690.1840.1960.2310.2570.2610.2690.2880.3040.3070.3270.3460.3840.4030.4230.4420.4610.499

BeltLength

mmNo.

Teeth20mm Wide Belt

Cat. No. Wt kg

30mm Wide Belt

Cat. No. Wt kg

50mm Wide Belt

Cat. No. Wt kg

85mm Wide Belt

Cat. No. Wt kg

1080-8H201120-8H201200-8H201224-8H201280-8H201352-8H201440-8H201464-8H201600-8H201760-8H201800-8H202000-8H202200-8H202400-8H202600-8H202800-8H203048-8H203280-8H203600-8H204400-8H20

135140150153160169180183200220225250275300325350381410450550

0.1220.1270.1360.1380.1450.1530.1630.1650.1810.1990.2030.2260.2490.2710.2940.3160.3440.3710.4070.497


0.1830.1900.2030.2070.2170.2290.2440.2480.2710.2980.3050.3390.3730.4070.4410.4750.5170.5560.6100.746


0.3050.3160.3390.3460.3620.3820.4070.4140.4520.4970.5090.5650.6220.6780.7350.7910.8610.9271.0171.243


0.5190.5380.5760.5880.6150.6490.6920.7030.7680.8450.8640.9611.0571.1531.2491.3451.4641.5751.7292.113

BeltLength

mmNo.

Teeth40mm Wide Belt

Cat. No. Wt kg

55mm Wide Belt

Cat. No. Wt kg

85mm Wide Belt

Cat. No. Wt kg


Cat. No. Wt kg

966-14P401092-14P401190-14P401400-14P401610-14P401764-14P401778-14P401890-14P402100-14P402310-14P402450-14P402590-14P402800-14P403150-14P403360-14P403500-14P403850-14P404326-14P404578-14P404956-14P40

697885

100115126127135150165175185200225240250275309327354

0.380.430.470.550.630.700.700.740.830.910.971.021.101.241.321.381.521.701.801.95


0.520.590.640.760.870.960.961.021.141.251.331.401.521.711.821.902.092.342.482.68


0.810.911.001.171.351.481.491.581.761.932.052.172.342.642.812.933.223.623.834.15


1.091.241.351.591.822.002.012.142.382.622.782.933.173.573.813.964.364.905.195.61


1.621.831.992.342.702.952.983.163.523.874.104.344.695.275.635.866.457.247.678.30

Cat. No. Wt kg

1.091.241.351.591.822.002.012.142.382.622.782.933.173.573.813.964.364.905.195.61

9661092119014001610176417781890210023102450259028003150336035003850432645784956

14mm Pitch RPP Plus High Power Belts Type 14HBelt

Lengthmm

No.Teeth

40mm Wide Belt

Cat. No. Wt kg

55mm Wide Belt

Cat. No. Wt kg

85mm Wide Belt

Cat. No. Wt kg


Cat. No. Wt kg


697885

100115126127135150165175185200225240250275309327354

0.380.430.470.550.630.700.700.740.830.910.971.021.101.241.321.381.521.701.801.95


0.520.590.640.760.870.960.961.021.141.251.331.401.521.711.821.902.092.342.482.68


0.810.911.001.171.351.481.491.581.761.932.052.172.342.642.812.933.223.623.834.15


Cat. No. Wt kg


1.621.831.992.342.702.952.983.163.523.874.104.344.695.275.635.866.457.247.678.30

10801120120012241280135214401464160017601800200022002400260028003048328036004400

288320352384408480536544560600632640680720800840880920960

1040

8mm Pitch RPP Gold High Power Belts Type 8PBelt

Lengthmm

No.Teeth

20mm Wide Belt

Cat. No. Wt kg

30mm Wide Belt

Cat. No. Wt kg

50mm Wide Belt

Cat. No. Wt kg

85mm Wide Belt

Cat. No. Wt kg

288-8P20320-8P20352-8P20384-8P20408-8P20480-8P20536-8P20544-8P20560-8P20600-8P20632-8P20640-8P20680-8P20720-8P20800-8P20840-8P20880-8P20920-8P20960-8P20

1040-8P20

3640444851606768707579808590

100105110115120130

0.0330.0360.0400.0430.0460.0540.0610.0610.0630.0680.0710.0720.0770.0810.0900.0950.0990.1040.1080.118


1040-8P30

0.0490.0540.0600.0650.0690.0810.0910.0920.0950.1020.1070.1080.1150.1220.1360.1420.1490.1560.1630.176


1040-8P50

0.0810.0900.0990.1080.1150.1360.1510.1540.1580.1700.1790.1810.1920.2030.2260.2370.2490.2600.2710.294


1040-8P85

0.1360.1540.1690.1840.1960.2310.2570.2610.2690.2880.3040.3070.3270.3460.3840.4030.4230.4420.4610.499

14mm Pitch RPP Gold High Power Belts Type 14P

BeltLength

mmNo.

Teeth20mm Wide Belt

Cat. No. Wt kg

30mm Wide Belt

Cat. No. Wt kg

50mm Wide Belt

Cat. No. Wt kg

85mm Wide Belt

Cat. No. Wt kg


135140150153160169180183200220225250275300325350381410450550

0.1220.1270.1360.1380.1450.1530.1630.1650.1810.1990.2030.2260.2490.2710.2940.3160.3440.3710.4070.497


0.1830.1900.2030.2070.2170.2290.2440.2480.2710.2980.3050.3390.3730.4070.4410.4750.5170.5560.6100.746


0.3050.3160.3390.3460.3620.3820.4070.4140.4520.4970.5090.5650.6220.6780.7350.7910.8610.9271.0171.243

1080-8H851120-8H851200-8H851224-8H851280-8H851352-8H851440-8H851464-8H851600-8H851760-8H851800-8H852000-8H852200-8H852400-8H852600-8H852800-8H853048-8H853280-8H853600-8H854400-8P85

0.5190.5380.5760.5880.6150.6490.6920.7030.7680.8450.8640.9611.0571.1531.2491.3451.4641.5751.7292.113

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

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44

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Wt kg

115mm Wide Belt85mm Wide Belt40mm Wide Belt

9661190140016101778189021002310245025902800315035003850432645784956

6985

100115127135150165175185200225250275309327354

14mm Pitch Double-sided Metric Belts Type 14M - DD

Cat. No.

BeltLength

mmNo.

Teeth Cat. No.

55mm Wide Belt

Cat. No.Wt kg Wt kg Wt kg Cat. No.

966-14M40DD1190-14M40DD1400-14M40DD1610-14M40DD1778-14M40DD1890-14M40DD2100-14M40DD2310-14M40DD2450-14M40DD2590-14M40DD2800-14M40DD3150-14M40DD3500-14M40DD3850-14M40DD4326-14M40DD4578-14M40DD4956-14M40DD

0.350.430.510.580.640.690.760.840.890.941.021.141.271.401.571.661.80


0.480.600.700.800.890.941.051.151.221.291.401.571.751.922.162.282.47


0.750.921.081.241.371.461.621.781.892.002.162.432.702.973.343.533.82


1.011.241.461.681.851.972.192.412.562.702.923.293.654.024.524.785.18


1.491.842.162.482.742.923.243.563.784.004.324.865.405.946.687.067.64

Wt kg

170mm Wide Belt

Cat. No.

635-5M25DD640-5M25DD675-5M25DD700-5M25DD705-5M25DD710-5M25DD725-5M25DD740-5M25DD755-5M25DD800-5M25DD850-5M25DD890-5M25DD935-5M25DD940-5M25DD950-5M25DD980-5M25DD

1000-5M25DD1050-5M25DD1125-5M25DD1195-5M25DD1240-5M25DD1270-5M25DD1420-5M25DD1595-5M25DD1690-5M25DD1790-5M25DD1800-5M25DD1895-5M25DD

45454749495051525356606265666769707479848789

100112118125126133



635640675700705710725740755800850890935940950980

100010501125119512401270142015951690179018001895

Metric Series Timing Belt Drives

14

Double Sided Metric BeltsDouble-sided belts have teeth equally constructed on each side of the belt, which enables them to mesh with toothed pulleys onboth the inside and outside. The construction of the belts is basically the same as standard Metric belts, except that the nylon facing is also on the backing teeth, enabling full torque transmission from each side of the belt.

Double sided belts enable:-

• Reverse motion between internal and external pulleys. • Require only one belt to drive a series of pulleys.

• Simplified design layouts and weight reduction.

Standard Double sided belts are available in three sizes, 5M, 8M, and 14M, all operating on standard HTD pulleys.

5mm Pitch Double Sided Metric Belts Type 5M-DDBelt

Lengthmm

No.Teeth Cat. No.



127128135140141142145148151160170178187188190196200210225239248254284319338358360379

27272829303030313134363739404041424447505253606771757680


Cat. No. WtgmsWtgms

7475798182838586889399

104108110111114117123131140145148166186197209210221

25mm Wide Belt

Cat. No. Wtgms

8mm Pitch Double Sided Metric Belts Type 8M-DD

Cat. No.

.180

.189

.192

.204

.216

.240

.252

.264

.276

.288

.312

.336

.360

.367

.384

.405

.432

.480

.528

.540

.600

.720

.780

.840

.912

.9851.0801.320

600-8M50DD632-8M50DD640-8M50DD680-8M50DD720-8M50DD800-8M50DD840-8M50DD880-8M50DD920-8M50DD960-8M50DD

1040-8M50DD1120-8M50DD1200-8M50DD1224-8M50DD1280-8M50DD1352-8M50DD1440-8M50DD1600-8M50DD1760-8M50DD1800-8M50DD2000-8M50DD2400-8M50DD2600-8M50DD2800-8M50DD3048-8M50DD3280-8M50DD3600-8M50DD4400-8M50DD

.108

.113

.115

.122

.130

.144

.151

.158

.165

.173

.187

.202

.216

.220

.230

.242

.259

.288

.317

.324

.360

.432

.468

.504

.549

.590

.648

.792

600632640680720800840880920960

104011201200122412801352144016001760180020002400260028003048328036004400

BeltLength

mmNo.

Teeth Cat. No.



7579808590

100105110115120130140150153160169180200220225250300325350381410450550

.072

.076

.077

.082

.086

.096

.101

.106

.111

.115

.125

.134

.144

.147

.154

.163

.173

.192

.211

.216

.240

.288

.312

.336

.365

.394

.432

.528


Cat. No.Wt kg

50mm Wide Belt



Wt kg Wt kg

85mm Wide Belt

Cat. No. Wt kg

.306

.322

.326

.347

.367

.408

.428

.449

.469

.490

.530

.571

.612

.625

.653

.690

.734

.816

.898

.9181.0201.2241.3261.4281.5511.6751.8362.244



CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

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3

25

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9 E

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ale

s@

cr

os

sm

or

se

.c

om


.006

.008

.010

.012

.010

.012

.014

.016

.018

.020

.027

.030

.038

.045

.060

.075

.095

.103

.150

.210

PulleyType

CatalogueNo.

No.Teeth

Z

Pitch CircleDiameter

dp

15

HTD Timing Pulleys - 3M Belts

Cross+Morse HTD Pulleys are manufactured to close tolerances to ensure concentric running, and have precision generated gearteeth to match the high power and speed capabilities of HTD drive belts. Only high quality materials are used for pulley manufacture; aluminium being selected for 3M and larger 5M pulleys to keep weight and inertia low; all other pulleys machinedfrom medium carbon steel bar or 260 Grade cast iron and finished with zinc phosphate for corrosion protection.Standard pulleys are offered with a large range of tooth sizes in widths to suit all standard HTD belts. Pulleys for 5M, 8M and14M drives are available with parallel pilot bore for reworking to customers requirements , bored for shaft clamping elements, orwith taper bore to be combined with stock taper brushes for the complete off- the Shelf drive. Pulleys of non-standard widths or numbers of teeth can be supplied to order, or teeth can be generated on customers own blanks.Smaller pulleys are fitted with two flanges to retain the drive belt, these being identified in tables by suffix ‘F’ on pulley type. Theflanges are pressed onto pulley body and retained by spin rivetting.Dimensions over and between flanges are provided in table below.

EF

Belt Size

Belt Width mm

3M

9 15 9 15 25

5M 8M 14M

20 30 50 85 40 55 85 115 170

10.213.4

1720

11.914.5

17.920.5

27.930.5

2328

3338

5560

9095

4754

6370

95102

126133

180187

Min.Bore

d

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

Approx.Weight

kg

3mm Pitch Pulleys for 9mm wide Belts. Ref. 3M09

10-3M-0912-3M-0914-3M-0915-3M-0916-3M-0918-3M-0920-3M-0921-3M-0922-3M-0924-3M-0926-3M-0928-3M-0930-3M-0932-3M-0936-3M-0940-3M-0944-3M-0948-3M-0960-3M-0972-3M-09

1012141516182021222426283032364044486072

0F0F0F0F1F1F1F1F1F1F1F1F1F1F1F1F1F111

9.5511.4613.3714.3215.2817.1919.1020.0521.0122.9224.8326.7428.6530.5534.3838.2042.0245.8457.3068.75

____

4.06.06.06.06.06.06.06.06.06.06.06.06.08.08.08.0

4.06.07.08.06.57.08.08.58.58.5

10.511.512.714.017.018.522.522.522.522.5

13.015.016.017.517.520.023.025.025.025.028.032.032.036.039.042.048.0_

__

10.210.210.210.212.812.812.812.812.812.812.812.812.812.813.413.413.413.413.413.4


8.810.712.613.614.516.418.319.320.322.224.126.027.929.833.637.441.345.156.568.0

17.517.517.517.520.620.620.620.620.620.620.620.620.620.622.222.222.222.222.222.2

13.015.016.017.510.011.013.014.014.014.016.018.020.022.026.028.033.033.033.033.0

.004

.006

.007

.008

.007

.008

.010

.013

.014

.016

.018

.024

.028

.032

.045

.055

.074

.074

.106

.145

10-3M-1512-3M-1514-3M-1515-3M-1516-3M-1518-3M-1520-3M-1521-3M-1522-3M-1524-3M-1526-3M-1528-3M-1530-3M-1532-3M-1536-3M-1540-3M-1544-3M-1548-3M-1560-3M-1572-3M-15

1012141516182021222426283032364044486072


9.5511.4613.3714.3215.2817.1919.1020.0521.0122.9224.8326.7428.6530.5534.3838.2042.0245.8457.3068.75

____

4.06.06.06.06.06.06.06.06.06.06.06.06.08.08.08.0

4.06.07.08.06.57.08.08.58.58.5

10.511.512.714.017.018.522.522.522.522.5

8.810.712.613.614.516.418.319.320.322.224.126.027.929.833.637.441.345.156.568.0

13.015.016.017.517.520.023.025.025.025.028.032.032.036.039.042.048.0_

__

13.015.016.017.510.011.013.014.014.014.016.018.020.022.026.028.033.033.033.033.0

17.017.017.017.019.519.519.519.519.519.519.519.519.519.520.020.020.020.020.020.0

26.026.026.026.026.026.026.026.026.026.026.026.026.026.030.030.030.030.030.030.0

Type 1Material: Aluminium

Type 0FMaterial: Aluminium

dp do

F

d MA

L

d Mdp do

F

L

F

E

L

F

d MA dp do

Type 1FMaterial: Aluminium

CROSS+MORSE



Te

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44

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5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


16

HTD Timing Pulleys - 5M Belts

Pulley TypesPulley types referred to in tables areas drawings below. The suffix ‘F’indicates pulley flanges

Pulley InstallationCorrect and accurate installation of Timing Drives is essential. Pulley alignment and shaft parallelism is very important as misalignment ofthe drive will cause unequal loading across the belt width and edge wear of belt on flanges. Pulley alignment can be checked by placing astraight edge against the outside edge of the pulleys and adjusting so contact made evenly across both pulleys.The shaft should be located within a rigid framework, as any distortion under load could result in a reduction of centre distance which willcause jumping of belt on pulley teeth. If idlers are used they must be locked firmly into position after correct belt tensioning. Refer to page 9 for additional on drive installation.

12-5M-2514-5M-2515-5M-2516-5M-2518-5M-2520-5M-2521-5M-2522-5M-2524-5M-2526-5M-2528-5M-2530-5M-2532-5M-2536-5M-2540-5M-25

44-5M-2548-5M-2560-5M-2572-5M-25

121415161820212224262830323640

44486072

19.1022.2823.8725.4628.6531.8333.4235.0138.2041.3844.5647.7550.9357.3063.66

70.0376.3995.49

114.59

_

6.06.06.06.06.06.06.06.06.06.06.08.08.08.0

8.08.08.08.0

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F

2222

88

10111314151618202024262626

26263434

18.021.122.724.327.530.732.333.937.140.243.446.649.856.262.5

68.975.394.4

113.5

20.520.520.520.520.520.520.520.520.520.520.520.520.520.520.5

20.520.520.520.5

26.026.026.026.026.026.026.026.028.028.028.028.028.028.028.0

30.030.030.030.0

13.013.016.016.520.023.024.025.527.030.030.535.038.038.038.0

38.038.050.050.0

_______________

587490

100

.034

.046

.056

.064

.086

.112

.130

.140

.180

.220

.250

.300

.350

.426

.520

.225

.187

.305

.375

23.025.028.028.032.036.038.039.042.044.048.051.054.060.071.0

____


44-5M-1548-5M-1560-5M-1572-5M-15

CatalogueNo.


44-5M-0948-5M-0960-5M-0972-5M-09

All dimensions in mm. Other sizes of Pulleys can be supplied on short delivery. Pulleys can be supplied bored and keywayed.For Taper Bore Pulleys see page 21, and Avante pulleys pages 19-20

No.Teeth

ZPulleyType

Pitch CircleDiameter

dp

Min.Bore

d

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

Approx.Weight

kg

RimDiameter

N



121415161820212224262830323640

44486072

19.1022.2823.8725.4628.6531.8333.4235.0138.2041.3844.5647.7550.9357.3063.66

70.0376.3995.49

114.59

4.06.06.06.06.06.06.06.06.06.06.06.08.08.08.0

8.08.08.08.0

23.025.028.028.032.036.038.039.042.044.048.051.054.060.071.0

____


2222

88

10111314151618202024262626

26263030

18.021.122.724.327.530.732.333.937.140.243.446.649.856.262.5

68.975.394.4

113.5

14.514.514.514.514.514.514.514.514.514.514.514.514.514.514.5

14.514.514.514.5

20.020.020.020.020.022.522.522.522.522.522.522.522.522.522.5

25.525.525.525.5

13.013.016.016.520.023.024.025.527.030.030.535.038.038.038.0

38.045.045.045.0

_______________

587490

100

.028

.034

.042

.050

.070

.094

.110

.118

.145

.170

.200

.236

.270

.324

.400

.170

.182

.230

.270


121415161820212224262830323640

44486072

19.1022.2823.8725.4628.6531.8333.4235.0138.2041.3844.5647.7550.9357.3063.66

70.0376.3995.49

114.59

_

6.06.06.06.06.06.06.06.06.06.06.08.08.08.0

8.08.08.08.0


1222

88

10111314151618202024262626

26263434

18.021.122.724.327.530.732.333.937.140.243.446.649.856.262.5

68.975.394.4

113.5

30.530.530.530.530.530.530.530.530.530.530.530.530.530.530.5

30.530.530.530.5

36.036.036.036.036.036.038.038.038.038.038.038.038.038.038.0

40.040.040.040.0

13.013.016.016.520.023.024.025.527.030.030.535.038.038.038.0

38.038.050.050.0

_______________

_

7490

100

0.500.700.80.100.120.160.180.210.250.300.350.420.485.595.745

.320

.275

.435

.525

23.025.028.028.032.036.038.039.042.044.048.051.054.060.071.0

____

L


F

d MA dp do d Mdo

FL

dp

FL

dodp N d M


Type 1FMaterial: Steel

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


*Non-stock items, manufactured to customer order only. All dimensions in mm.Standard Pulleys can be reworked to customers bore and keyway requirements

105105105105105105105105105105105105105

9595

959595959595

P22-8M-50P24-8M-50P26-8M-50P28-8M-50P30-8M-50P32-8M-50P34-8M-50P36-8M-50P38-8M-50P40-8M-50P44-8M-50P48-8M-50P56-8M-50P64-8M-50P72-8M-50

P80-8M-50P90-8M-50

P112-8M-50P144-8M-50P168-8M-50P192-8M-50


P80-8M-85P90-8M-85

P112-8M-85P144-8M-85P168-8M-85P192-8M-85

Approx.Weight

kg


P80-8M-20P90-8M-20

*P112-8M-20*P144-8M-20*P168-8M-20*P192-8M-20

CatalogueNo.

17

Plain Bore Pulleys 8M Belts

Pulley TypesThe Pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Pulley below dividing line in tables are manufactured in cast iron. Pulleys 112 teeth(80 teeth on 8M-85) and aboveincorporate lightening holes indesign.

No.Teeth

Z

PulleyType

PitchCircle

Diameterdp

Min.Bore

d

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

RimDiameter

N

222426283032343638404448566472

8090

112144168192


222222

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21366.69427.81488.92

121212151515151515151515151515

151518202020

293032343640444650505050545454

545454546060

293032343640444650505050545454

545454546060

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8365.3426.4487.6

6066707582879197

102106120128150168192

––––––

383838383838383838383838383838

383838383838

282828282828282828282828282828

282828282828

434548505560667075757575808080

90909090

100100

____________

116137158

180204254336400460

0.540.650.800.871.021.201.401.551.651.742.102.682.883.303.85

4.164.886.208.40

10.2013.30

222426283032343638404448566472

8090

112144168192


222222

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21366.69427.81488.92

121212151515151515151515151515

151518202020

293032343640444650505050606063

606060606060

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8365.3426.4487.6

6066707582879197

102106120128150168192

––––––

383838383838383838383838383838

383838383838

434548505560667075757575909095

100100100100100100

____________

116137158

180204254336400460

0.690.841.001.121.321.531.801.992.232.402.803.204.044.575.46

5.736.577.809.78

12.4715.00


P80-8M-30P90-8M-30

P112-8M-30P144-8M-30P168-8M-30P192-8M-30

484848484848484848484848484848

484848484848

222426283032343638404448566472

8090

112144168192


333333

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21366.69427.81488.92

293032343640444650505054606767

666666667278

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8365.3426.4487.6

6066707582879197

102106120128150168192

––––––

606060606060606060606060606060

606060606060

707070707070707070707070606060

606060606060

____________

181818

181818202020

43454850556066707575758090

100100

110110110110120130

____________

116137158

180204254336400460

1.001.231.501.671.972.272.692.973.233.503.904.305.576.958.00

8.909.90

12.3215.9518.0322.00

222426283032343638404448566472

8090

112144168192

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21366.69427.81488.92

293032343640444650505054546774

666666727278

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8365.3426.4487.6

6066707582879197

102106120128150168192

––––––

959595959595959595959595959595

959595959595

____________

202020

202024242424

43454850556066707575758090

100110

110110110120120130

_____________

137158

180204254336400460

1.551.902.252.553.003.574.004.504.905.206.607.609.80

11.7214.57

12.7214.2719.4022.5026.0029.00


333333





Type 3/3FMaterial: Steel or Cast Iron


L

F

d MA dodp

F/L

d MA dodp NType 2/2F

Material: Steel or Cast Iron

L

F

d MA dodp N


Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


283032343638404864

8090

112144192

5.105.836.607.368.138.869.90

11.04

11.8813.4615.8415.9317.3619.4723.7729.8034.6039.60

18

CatalogueNo.

No.Teeth

ZPulleyType

PitchCircle

Dia. dp

Max.Bore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

RimDiameter

N

ApproxWeight

kg

P28-14M-40P30-14M-40P32-14M-40P34-14M-40P36-14M-40P38-14M-40P40-14M-40P44-14M-40

P48-14M-40P56-14M-40P64-14M-40P72-14M-40P80-14M-40P90-14M-40

P112-14M-40*P144-14M-40*P168-14M-40*P192-14M-40

Min.Bore

d

14mm Pitch Pulleys for 40mm Wide Belts. Ref. 14M40


2830323436384044

485664728090

112144168192

1F1F1F1F1F1F1F1F

2F2F2F2222222

124.78133.69142.60151.52160.43169.34178.25196.08

213.90249.55285.21320.86356.51401.07499.11641.71748.66855.62

2424242424242424

24282828282828282828

6767676767808080

82828282828282828282

122.1131.0139.9148.8157.7166.6175.5193.3

211.1246.8282.4318.1353.7398.3496.3638.9745.9852.8

128138154160168183188211

226256296_______

5454545454545454

54545454545454545454

6969696969696969

69696969696969696969

100100100100100120120120

135135135135135135135135135135

________

170207240278314358456600706813

P28-14M-55P30-14M-55P32-14M-55P34-14M-55P36-14M-55P38-14M-55P40-14M-55P44-14M-55

P48-14M-55P56-14M-55P64-14M-55P72-14M-55P80-14M-55P90-14M-55

P112-14M-55P144-14M-55P168-14M-55P192-14M-55

2830323436384044

485664728090

112144188192

1F1F1F1F1F1F1F1F

3F3F3F3333333

124.78133.69142.60151.52160.43169.34178.25196.08

213.90249.55285.21320.86356.51401.07499.11641.71748.66855.62

2424242424242424

24282828282828282828

6767676767808080

82828282828282828282

122.1131.0139.9148.8157.7166.6175.5193.3

211.1246.8282.4318.1353.7398.3496.3638.9745.9852.8

128138154160168183188211226

256296_______

7070707070707070

70707070707070707070

8585858585858585

70707070707070707070

100100100100100120120120

135135135135135135135135135135

________

170207240278314358456600706813

5.997.068.139.20

10.2711.5511.9813.37

13.5715.4318.2018.2220.1222.8528.2037.3047.0085.00


P28-14M-85P30-14M-85P32-14M-85P34-14M-85P36-14M-85P38-14M-85P40-14M-85P44-14M-85P48-14M-85

P56-14M-85P64-14M-85P72-14M-85P80-14M-85P90-14M-85

P112-14M-85P144-14M-85P168-14M-85P192-14M-85

283032343638404448

5664728090

112144168192

1F1F1F1F1F1F1F1F1F

3F3F3333333

124.78133.69142.60151.52160.43169.34178.25196.08213.90

249.55285.21320.86356.51401.07499.11641.71748.66855.62

6767676767809090

100

9090909090909090

100

_________

323232323232323232

_________

207240278314358456600706813

8.839.73

11.2312.7314.1216.2918.2924.9326.75

24.0425.2027.3129.5532.7040.5052.2065.0085.00

122.1131.0139.9148.8157.7166.6175.5193.3211.1

246.8282.4318.1353.7398.3496.3638.9745.9852.8

128138154160168183188211

226256296_______

102102102102102102102102102

102102102102102102102102102

117117117117117117117117117

102102102102102102102102102

100100100100100120135135150

150150150150150150150150165


128138154160168183188211226256

296_______

P28-14M-115P30-14M-115P32-14M-115P34-14M-115P36-14M-115P38-14M-115P40-14M-115P44-14M-115P48-14M-115P56-14M-115

P64-14M-115P72-14M-115P80-14M-115P90-14M-115

P112-14M-115P144-14M-115P168-14M-115P192-14M-115

28303234363840444856

64728090

112144168192

1F1F1F1F1F1F1F1F1F1F

3F3333333

124.78133.69142.60151.52160.43169.34178.25196.08213.90249.55

285.21320.86356.51401.07499.11641.71748.66855.62

6767676780809094

100100

9090909090

100100100

__________

3232323232323232

122.1131.0139.9148.8157.7166.6175.5193.3211.1246.8

282.4318.1353.7398.3496.3638.9745.9852.8

133133133133133133133133133133

133133133133133133133133

148148148148148148148148148148

133133133133133133133133

100100100100120120135140150150

150150150150150165165165

__________

240278314358456600706813

10.8011.9814.1015.8317.7620.5422.0023.4626.7529.42

34.7035.7038.2042.0053.0073.0084.50

102.00


128138154160168183188226296_____

1F1F1F1F1F1F1F1F1F

33333

124.78133.69142.60151.52160.43169.34178.25213.90285.21

356.51401.07499.11641.71855.62

67676767809094

107120

108108108108108

_________

3238383838

122.1131.0139.9148.8157.7166.6175.5211.1282.4

353.7398.3496.3638.9852.8

187187187187187187187187187

187187187187187

202202202202202202202202202

187187187187187

100100100100120135140160180

180180200220220

_________

314358456600813

14.8016.7019.4021.8525.2028.4032.2639.5054.00

69.4071.3088.00

113.00140.00

P28-14M-170P30-14M-170P32-14M-170P34-14M-170P36-14M-170P38-14M-170P40-14M-170

* P48-14M-170* P64-14M-170

P80-14M-170P90-14M-170

P112-14M-170P144-14M-170

*P192-14M-170

Plain Bore Pulleys 14M Belts

Pulley TypesThe pulley types referred to intables are as drawings below.Suffix ‘F’ indicates pulley hasflanges. Pulleys below dividing line in tables are manufactured in cast iron, unflanged pulleysincorporate lightening holes indesign, except P80-14M-170.Std. Pulleys can be reworked tocustomers bore and keywayrequirements.

*Non-stock items, manufactured to customer order only. All dimensions in mm.Standard Pulleys can be reworked to customers bore and keyway requirements.


L

F

d MA dodp


L

F

d MA dodp N

F/L

Type 3/3FMaterial: Cast Iron

d MA dodp N

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om



A dp do

F

db

Pulley TypesPulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Pulley below dividing line in tables are manufactured in cast iron. Pulleys over 250mm dia. incorporate lightening holes in design.

Standard Avante HTD Pulleys dimensionsPitch

Circle dp

Outside

do

Avante Pulleys forHtd Size 5M & 8M Belts


19

The Avante drive system combines the advantages of Shaft Clamping Elements with a standard range of Timing Belt Pulleys, providing a uniquezero backlash connection between shafting and Timing Belt drive. Each HTD belt Pulley is finish bored to suit one size of Clamping Element ofthe ACE81 series, each of which is available with several metric bore sizes.The combination eliminates the need for keys, circlips or stepped shafts for Pulley location, and permits timing of the finished drive, and simpleadjustment to the timing at latter times. The total lack of either rotary or axial free play makes the drives well suited to torque reversal and timingapplications. Simple synchronisation of drives is achieved and the design enables quick easy assembly and removal of Pulleys on the shafting.

ApproxWeight

kg

Dimensions mmClampingElement

Size

Avante Clamping Element dimensions

ACE81 -x26ACE81 -x38ACE81 -x38HACE81 -x52ACE81 -x72

d max

SurfacePressure

HubN/mm2

Clamping Screws

No Torque

Nm

Size

AxialStrength

FkND D2 L L1 L3 X

2030304260

2638385272

40.557.057.070.596.5

31.539525268

1414272737

27.533464660

1218181818

14.5223344105

100104817999

646810

M4M6M6M6M8

517171741

0.220.320.400.601.50

*The Clamping Element part No. combinesthe unit size with the bore size replacing the dash. e.g. a 24mm bored size 38H unit has part No. ACE81-24x38H and will fit all pulleys showing bush ref. -x38H

dT

ACE81 -x26 mmNm

1180

1287

14102

15108

16116

18130

19138

20145

dT

ACE81 -x38 mmNm

19210

20220

22242

24265

25276

28309

30331

dT

ACE81 -x38H mmNm

19314

20331

22364

24397

25413

28465

30497

dT

ACE81 -x52 mmNm

24529

25552

28618

30662

32706

35772

38839

40883

42926

dT

ACE81 -x72 mmNm

281462

301567

321671

351828

381985

402089

422194

452350

482506

502611

552872

603133

Standard bore sizes, with transmittable torques ‘T’

CatalogueNo.

No.Teeth

Z

PulleyType

ACE81BushRef.

PulleyWidth

F

Flange

A

Hub

db

Rim

N

C/Bore

C

C/BoreDepth

E

Approx.Weight

kg

A24-5M-09A26-5M-09A28-5M-09A30-5M-09A32-5M-09A36-5M-09A40-5M-09

A44-5M-09A48-5M-09A60-5M-09A72-5M-09

24262830323640

44486072

4F4F4F4F4F4F4F

4444

-x26-x26-x26-x26-x38-x38-x38

-x38-x38-x38-x38

38.2041.3844.5647.7550.9357.3063.66

70.0376.3995.49

114.59

37.140.243.446.649.856.262.5

68.975.394.4

113.5

43444851566070____

14.514.514.514.514.514.514.5

14.514.514.514.5

26262626383838

38383838

_______

____

_______

____

_______

____

_______

____

0.060.080.110.130.090.150.22

0.270.350.630.98

A24-5M-15A26-5M-15A28-5M-15A30-5M-15A32-5M-15A36-5M-15A40-5M-15

A44-5M-15A48-5M-15A60-5M-15A72-5M-15

24262830323640

44486072

4F4F4F4F4F4F4F

4444

-x26-x26-x26-x26-x38-x38-x38

-x38-x38-x38-x38

38.2041.3844.5647.7550.9357.3063.66

70.0376.3995.49

114.59

37.140.243.446.649.856.262.5

68.975.394.4

113.5

43444851566070____

20.520.520.520.520.520.520.5

20.520.520.520.5

26262626383838

38383838

_______

____

_______

____

_______

____

_______

____

0.080.110.150.180.120.210.30

0.380.500.901.39


A24-5M-25A26-5M-25A28-5M-25A30-5M-25A32-5M-25A36-5M-25A40-5M-25

A44-5M-25A48-5M-25A60-5M-25A72-5M-25

24262830323640

44486072

4F4F4F4F4F4F4F

4444

-x26-x26-x26-x26-x38H-x38H-x38H

-x38H-x38H-x38H-x38H

38.2041.3844.5647.7550.9357.3063.66

70.0376.3995.49

114.59

37.140.243.446.649.856.262.5

68.975.394.4

113.5

43444851566070____

30.530.530.530.530.530.530.5

30.530.530.530.5

26262626383838

38383838

_______

____

_______

____

_______

____

_______

____

0.120.160.210.260.170.300.44

0.570.741.332.07


A22-8M-20A24-8M-20A26-8M-20A28-8M-20A30-8M-20A32-8M-20A34-8M-20A36-8M-20A38-8M-20A40-8M-20A44-8M-20A48-8M-20A56-8M-20A64-8M-20A72-8M-20

A80-8M-20A90-8M-20

A112-8M-20

222426283032343638404448566472

8090

112


333

-x38H-x38H-x38H-x38H-x52-x52-x52-x52-x52-x52-x52-x52-x52-x52-x52

-x52-x52-x52

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8

6266717582879198

102110120128150168192___

28.028.028.028.028.028.028.028.028.028.028.028.028.028.028.0

28.028.028.0

383838385252525252525252525252

525252

____________

808080

909090

____________

116137158

180204254

_______________

___

_______________

___

0.230.330.430.550.450.590.730.881.041.211.571.972.272.863.52

4.305.365.55

L

d D

L3L1

D2

PulleyBore

db

d MA dodp N



F

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om



A80-8M-50A90-8M-50

A112-8M-50

-x72-x72-x72-x72-x72-x72-x72-x72

-x72-x72-x72-x72-x72-x72-x72

-x72-x72-x72-x72-x72-x72-x72-x72

-x72-x72-x72-x72-x72-x72-x72

Pulley TypesThe pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Pulley below dividing line in tables are manufactured in cast iron, pulleys over 250mm dia incorporate lightening holes in design.


Type 16FMaterial: Cast Iron

Pulley InstallationSlacken screws in clamping element by two turns, removing one completely and fit into empty thread release hole tighteningthis screw so as to keep the inner and outer cones apart. Ensure all contact surfaces are clean, and lightly oiled with clean thinunmodified oil. Insert clamping element in hub and fit on shaft. Remove screw from release hole and refit in original hole.Position Pulley and tighten all screws finger tight so pulley can still be moved on shaft. Correct and accurate installation ofTiming Drives is essential. Pulley alignment and shaft parallelism are important to ensure even loading across belt width, andavoid edge wear of belts on flanges. Pulley alignment can be checked by placing a straight edge against the outside edge of the pulleys and adjusting so contact is even across both pulleys. When the pulleys are correctly aligned they can be locked tothe shafts by tightening all clamping screws evenly in a diametrically opposite sequence using torque wrench set initially at half catalogue clamping screw torque, then 3/4 value, and finally full torque. No movement of pulleys will occur during clamping.

Avante Pulleys for HTD Size 8M & 14M Belts

20

A28-14M-85A30-14M-85A32-14M-85A34-14M-85A36-14M-85A38-14M-85A40-14M-85A44-14M-85

A48-14M-85A56-14M-85

909095

100100100

____________

ACE81BushRef.


CatalogueNo.

No.Teeth

Z

PulleyType

PitchCircle

dp

Outside

do

PulleyWidth

F

PulleyBore

db

Flange

A

Hub

M

Rim

N

C/Bore

C

C/BoreDepth

E

Approx.Weight

kg


A80-8M-30A90-8M-30

A112-8M-30


222426283032343638404448566472

8090

112


333


-x72-x72-x72

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8

6266717582879198

102110120128150168192___

38.038.038.038.038.038.038.038.038.038.038.038.038.038.038.0

38.038.038.0

116137158

180204254

____________

_______________

___

_______________

___

0.310.440.580.740.610.790.981.181.401.041.542.082.553.234.11

4.956.186.79

383838385252525252727272727272

727272

222426283032343638404448566472

8090

112

4F4F4F4F4F4F4F4F4F4F4F6F

15F15F15F

151515


-x72-x72-x72

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

203.72229.18285.21

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

202.4227.8283.8

6266717582879198

102110120128150168192___

60.060.060.060.060.060.060.060.060.060.060.060.060.060.060.0

60.060.060.0

90100100

110110110

____________ 99

999999

999999

383838385252525272727272727272

727272

116137158

180204254

____________

___________

22.522.522.522.5

22.522.522.5

___________

0.470.680.901.150.951.231.531.851.271.632.412.623.825.246.31

7.829.59

10.68



A48-14M-40A56-14M-40A64-14M-40A72-14M-40A80-14M-40A90-14M-40

A112-14M-40

2830323436384044

485664728090

112

4F4F4F4F4F4F4F4F

3F3F3F3333

124.78133.69142.60151.52160.43169.34178.25196.08

213.90249.55285.21320.86356.51401.07499.11

122.1131.0139.9148.8157.7166.6175.5193.3

211.1246.8282.4318.1353.7398.3496.3

128140156159168183192211

226256296____

54.054.054.054.054.054.054.054.0

54.054.054.054.054.054.054.0

7272727272727272

72727272727272

135135135135135135135

170207240278314358456

2.83.54.35.16.06.97.9

10.0

9.912.114.914.015.818.424.6



A48-14M-55A56-14M-55A64-14M-55A72-14M-55A80-14M-55A90-14M-55

A112-14M-55

2830323436384044

485664728090

112

6F6F6F6F6F6F6F6F

15F15F15F15151515

124.78133.69142.60151.52160.43169.34178.25196.08

213.90249.55285.21320.86356.51401.07499.11

122.1131.0139.9148.8157.7166.6175.5193.3

211.1246.8282.4318.1353.7398.3496.3

128140156159168183192211

226256296____

70.070.070.070.070.070.070.070.0

70.070.070.070.070.070.070.0

7272727272727272

72727272727272

135135135135135135135

170207240278314358456

9999999999999999

99999999999999

22.522.522.522.522.522.522.522.5

22.522.522.522.522.522.522.5

3.03.94.96.07.18.39.6

12.3

12.014.617.917.519.823.231.3


14F14F14F14F14F14F14F14F

14F16F

-x72-x72-x72-x72-x72-x72-x72-x72

-x72-x72

124.78133.69142.60151.52160.43169.34178.25196.08

213.90249.55

122.1131.0139.9148.8157.7166.6175.5193.3

211.1246.8

128140156159168183192211

226256

7272727272727272

7272

102.0102.0102.0102.0102.0102.0102.0102.0

102.0102.0 150 207

9999999999999999

9999

32.032.032.032.032.032.032.032.0

32.032.0

3.44.86.27.89.4

11.213.017.0

21.422.2

2830323436384044

4856

do

F

E

dpA db C

dodpA db NC M

E

dodpA db NC M

F

EE

do

F

E

dpA db C

E

F


Type 14FMaterial: Steel or Cast Iron

________

_______

________

_______

________

_______

________

________

________

________

________

________

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


21

Taper Bore Pulleys forHTD Size 5M & 8M Belts

Pulley TypesThe pulley types referred to intables are as drawingsfollowing. Suffix ‘F’ indicatespulley has flanges. Pulleysbelow dividing lines in tablesare manufactured in Cast Iron,and pulleys over 300mmdiameter generally havelightening holes in web.

CatalogueNo.

5mm Pitch Pulleys for 15mm Wide Belt Ref. 5M15





No.Teeth

ZPulleyType

PitchCircle

Dia. dp

TaperBushRef.

Max.Bore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

RimDiameter

N

ApproxWeight

kg

34-5M-1536-5M-1538-5M-1540-5M-1544-5M-1548-5M-1556-5M-1564-5M-1572-5M-1580-5M-1590-5M-15

112-5M-15136-5M-15

3436384044485664728090

112136

9F9F9F9F9F8F8F8F88887

54.1157.3060.4863.6670.0376.3989.13

101.86114.59127.32143.24178.25216.45

53.056.259.462.568.975.387.4

100.7113.5126.2142.1177.1215.3

1008110811081108110812101210121016101610161020122012

25282828283232324242425050

22222222222222222222222020

22222222222525252525253232

–––––597080929292

110110

––––––––––––

199

0.230.230.290.380.480.500.660.851.251.702.253.203.60

57606771758393

106–––––


222426283032343638404448566472

5F5F5F5F5F5F5F5F5F5F8F8F8F

11F11F

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

100811081108110811081610161016101610161020122012201220122012

252828282842424242425050505050

282828282828282828282828282828

222222222225252525253232323232

––––––––––9296

110110110

37444550586364687276–––

137158

0.260.330.390.480.580.460.600.740.871.091.301.742.682.983.52

6066707583879197

102106120128150168192

80-8M-2090-8M-20

8090

1111

203.72229.18

202.4227.8

20122012

5050

2828

3232

110110

180204

3.604.26

––

28-8M-5030-8M-5032-8M-5034-8M-5036-8M-5038-8M-5040-8M-5044-8M-5048-8M-5056-8M-5064-8M-5072-8M-50

283032343638404448566472

5F5F5F5F5F5F

13F13F13F13F13F12F

71.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

70.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

121016151615161516151615201220122012251725172517

324242424242505050606060

606060606060606060606060

253838383838323232454545

–––––––––––

125

505863656872808695

116136158

0.830.710.891.161.421.751.311.862.503.705.456.22

7583879197

102106120128150168192

80-8M-5090-8M-50

112-8M-50144-8M-50168-8M-50192-8M-50

8090

112144168192

13121212

77

203.72229.18285.21366.69427.81488.92

202.4227.8283.8365.3426.4487.6

302030203020302035253525

757575759090

606060606060

515151516565

–160170170198198

180204254336395455

8.388.43

12.7516.0019.0023.00

––––––

34-8M-8536-8M-8538-8M-8540-8M-8544-8M-8548-8M-8556-8M-8564-8M-8572-8M-85

343638404448566472

13F13F13F13F13F13F13F13F13F

86.5891.6796.77

101.86112.05122.23142.60162.97183.35

85.290.395.4

100.5110.7120.9141.2161.6182.0

161516151615201220122517251725173020

424242505060606075

959595959595959595

383838323245454551

–––––––––

656872808697

116136150

1.562.042.401.952.512.904.856.768.72

9197

102106120128150168192

80-8M-8590-8M-85

112-8M-85144-8M-85168-8M-85192-8M-85

8090

112144168192

131312121212

203.72229.18285.21366.69427.81488.92

202.4227.8283.8365.3426.4487.6

302030203020352535253525

757575909090

959595959595

515151656565

––

170198198198

180204254336395455

9.8011.7413.1517.5021.0028.00

––––––

For bore sizes of Taper Bushes for above pulleys refer to page 23. Pulleys are also available with pilotbore ref. pp 16-17, and Avante Clamping Elements pp 19-20. All dimensions in mm.


222426283032343638404448566472

5F5F5F5F9F9F9F9F9F9F5F5F5F8F

11F

56.0261.1266.2171.3076.3981.4986.5891.6796.77

101.86112.05122.23142.60162.97183.35

54.759.864.970.175.180.285.290.395.4

100.5110.7120.9141.2161.6182.0

100811081108121016151615161516151615161520122012201225172517

252828324242424242425050506060

383838383838383838383838383838

222222253838383838383232324545

–––––––––––––

125125

37444450––––––8690

110–

158

0.320.420.490.600.490.640.841.051.251.461.451.944.094.584.74

6066707583879197

102106120128150168192

80-8M-3090-8M-30

112-8M-30144-8M-30

8090

112144

11111111

203.72229.18285.21366.69

202.4227.8283.8365.3

2517251725172517

60606060

38383838

45454545

125125125125

180204254336

4.895.558.569.55

––––

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


Type 11/11F

dp do

L

F

A M N

dp do

F/L

M N

dp do

L

F

A M N

do

F

L

A AN

*Non-stock items, manufactured to customer order only. All dimensions in mm.For 14M170 belt drives a standard range of pilot bore pulleys is available, ref page 18, alternativelytaper bore sprockets can be manufactured to order, for details of recommended dimensions contactCross+Morse Technical Department. For bore sizes of Taper Bushes refer to page 23

949898

108110120130138155170

208240280315360457600706813920

ApproxWeight

kg

RimDiameter

N

Taper Bore Pulleys forHTD Size 14M Belts

22

Pulley TypesThe pulley types referred to intables are as drawings following. Suffix ‘F’ indicates pulley has flanges. Pulleys below dividing lines in tables are manufactured in Cast iron, and pulleys over 350mmdiameter generally havelightening holes in web.

28-14M-85*29-14M-8530-14M-8532-14M-8534-14M-8536-14M-8538-14M-8540-14M-8544-14M-8548-14M-85

56-14M-8564-14M-8572-14M-8580-14M-8590-14M-85

112-14M-85144-14M-85168-14M-85192-14M-85216-14M-85

28-14M-40*29-14M-40

30-14M-4032-14M-4034-14M-4036-14M-4038-14M-4040-14M-4044-14M-4048-14M-40

*56-14M-40*64-14M-40

72-14M-4080-14M-4090-14M-40

112-14M-40144-14M-40168-14M-40192-14M-40

*216-14M-40

CatalogueNo.

No.Teeth

ZPulleyType

PitchCircle

Dia. dp

Max.Bore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

TaperBushRef.



28293032343638404448

5664728090

112144168192216

13F13F13F13F13F13F13F13F13F13F

13F12F1212121212121212

124.78129.23133.69142.60151.52160.43169.34178.25196.08213.90

249.55285.21320.86356.51401.07499.11641.71748.66855.62962.57

2012201220122012251725172517251730203020

3020302030203020302030203020302030203020

50505050606060607575

75757575757575757575

122.1126.6131.0139.9148.8157.7166.6175.5193.3211.1

246.8282.4318.1353.7398.3496.3638.9745.9852.8959.8

128138138154160168183188211226

256296________

54545454545454545454

54545454545454545454

2.182.502.903.714.225.235.906.548.009.80

13.5013.2014.7615.4617.0322.2031.0038.5046.8055.80

32323232454545455151

51515151515151515151

__________

_

170170170170170170170170170

28-14M-55*29-14M-5530-14M-5532-14M-5534-14M-5536-14M-5538-14M-5540-14M-5544-14M-5548-14M-55

56-14M-5564-14M-5572-14M-5580-14M-5590-14M-55

112-14M-55144-14M-55168-14M-55192-14M-55

*216-14M-55

28293032343638404448

5664728090

112144168192216

13F13F13F13F13F13F13F13F13F13F

13F12F12121212121212

7

124.78129.23133.69142.60151.52160.43169.34178.25196.08213.90

249.55285.21320.86356.51401.07499.11641.71748.66855.62962.57

2012201225172517251725172517251730203020

3020302030203020302030203020302030203535

50506060606060607575

75757575757575757590

122.1126.6131.0139.9148.8157.7166.6175.5193.3211.1

246.8282.4318.1353.7398.3496.3638.9745.9852.8959.8

128138138154160168183188211226

256296________

70707070707070707070

70707070707070707070

32324545454545455151

51515151515151515189

__________

_

170170170170170170170170190

94100100108110120130138155170

208240280315360457600706813920

2.402.802.953.994.965.676.767.639.37

11.26

15.0015.1816.8817.7420.4925.8236.7045.3054.9068.50


28293032343638404448

5664728090

112144168192216

13F13F13F13F13F13F13F13F13F13F

13F12F1212121212121010

124.78129.23133.69142.60151.52160.43169.34178.25196.08213.90

249.55285.21320.86356.51401.07499.11641.71748.66855.62962.57

2517251725172517251730203020302030303030

3525352535253525352535253525352540404040

60606060607575757575

9090909090909090

100100

122.1126.6131.0139.9148.8157.7166.6175.5193.3211.1

246.8282.4318.1353.7398.3496.3638.9745.9852.8959.8

128138138154160168183188211226

256296________

102102102102102102102102102102

102102102102102102102102102102

45454545455151517676

6565656565656565

102102

___________

190190190190190190190230230

98100100108110125130138155170

210240280315360457600706813920

2.943.454.095.236.546.337.428.72

13.1216.46

18.0720.2722.1524.1726.9434.2045.5058.4092.00

105.00


28-14M-115*29-14M-115

30-14M-11532-14M-11534-14M-11536-14M-11538-14M-11540-14M-11544-14M-11548-14M-115

56-14M-115*64-14M-115*72-14M-115

80-14M-11590-14M-115

112-14M-115144-14M-115168-14M-115192-14M-115

*216-14M-115

28293032343638404448

5664728090

112144168192216

13F13F13F13F13F13F13F13F13F13F

13F12F1212121212121212

124.78129.23133.69142.60151.52160.43169.34178.25196.08213.90

249.55285.21320.86356.51401.07499.11641.71748.66855.62962.57

2517251725172517251730203020302030303030

3535353535353535353535354040404040404040

60606060607575757575

909090909090

100100100100

122.1126.6131.0139.9148.8157.7166.6175.5193.3211.1

246.8282.4318.1353.7398.3496.3638.9745.9852.8959.8

128138138154160168183188211226

256296________

133133133133133133133133133133

133133133133133133133133133133

45454545455151517676

898989898989

102102102102

___________

190190190190190230230230230

98100100108110125130138155170

210240280315360457600706813920

4.104.655.456.238.007.188.85

10.1014.6018.20

26.3027.5029.7032.1035.7045.4062.5075.50

102.00115.00

Type 13/13F

Type 12/12F

Type 10

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5050 14 127 178 3

7/8”x

21/2” B.S.W.

17

70 7580 8590 95

100 105 110115 120 125

20 4.9 23/4 3 3/41/4

22 5.4 31/4 31/27/8

5/16

25 5.4 33/4 4 1 3/8

28 6.4 41/4 41/2 43/4 11/47/16

32 7.4 5 11/45/16*

23

Taper BushesBush Dimensions

BushNo.

Approx.Weight

kg

Bush Dimensions

Lengthmm

o.d.large endof taper

mm No. Screw SizeKeySIzemm

Grub Screws

Metric Bore Bushes Imperial Bore Sizes

Bore sizesavailable

mm Width Depth atCentre

Bore sizesavailable

inches

KeywayInches

Width Depth atSide

Keyway mm

1008 0.11 22.2 35 2

1108 0.12 22.2 38 2

1210 0.23 25.4

1215 0.35 38.1

1310 0.28 25.4

1610 0.35 25.4

1615 0.45 38.1

2012 0.68 31.8

2517 1.5 44.5

2525 1.9 63

3020 2.7 50.8

3030 3.6 76

3525 4.0 63

3535 5.0 89

4030 6.5 76

4040 7.7 102

4535 8 89

4545 10 114

5040 12 102

48 2

51 2

57 2

70 2

86 2

108 2

127 3

146 3

162 3

1/4”x

1/2” B.S.W.

1/4”x

1/2” B.S.W.

3/8”x

5/8” B.S.W.

7/16”x

7/8” B.S.W.

3/8”x

5/8” B.S.W.

3/8”x

5/8” B.S.W.

1/2”x

1” B.S.W.

5/8”x

11/4” B.S.W.

1/2”x

11/4” B.S.W.

5/8”x

13/4” B.S.W.

3/4”x

2” B.S.W.

3

3

5

5

5

6

6

8

10

12

14

9 1011 12

14 1618 19 20 22

24 25

9 1011 12

14 1618 19 20 22

24 2528

11 1214 1618 19 20 2224 25 28 30

32

14 1618 19 20 2224 25 28 303235

14 1618 19 20 2224 25 28 3032 35 38

40 42(1615 only) 42

14 15 1618 19 20 2224 25 28 3032 35 38

40 4245 48 50

19 20 2224 25 28 3032 35 38

40 4245 48 50

5560 65†

25 28 3032 35 38

40 4245 48 50

5560 6570 75

32 35 3840 42

45 48 5055

60 6570 7580 85

90

40 4245 48 50

5560 6570 7580 8590 95

100

5560 6570 7580 8590 95

100 105 110

3 1.4 3/81/2

1/81/16

4 1.8 5/83/4

3/163/32

5 2.3 7/81/4

1/8

6 2.8 1 1/41/16*

8 1.3**

3 1.4 3/81/2

1/81/16

4 1.8 5/83/4

3/163/32

5 2.3 7/8 1 1/41/8

6 2.8 11/85/16

5/64*8 3.38 1.3**

4 1.8 1/21/8

1/16

5 2.3 5/83/4

3/163/32

6 2.8 7/8 1 1/41/8

8 3.3 11/8 11/45/16

1/8

10 3.3

5 2.3 1/21/8

1/16

6 2.8 5/83/4

3/163/32

8 3.3 7/8 1 1/41/8

10 3.3 11/8 11/45/16

1/8

10 1.3** 13/83/8

1/8

5 2.3 1/21/8

1/16

6 2.8 5/83/4

3/163/32

8 3.3 7/8 1 1/41/8

10 3.3 11/8 11/45/16

1/8

12 3.3 13/8 11/23/8

1/8

12 1.3** 15/87/16

1/8*

5 2.3 3/43/16

3/32

6 2.8 7/8 1 1/41/8

8 3.3 11/8 11/45/16

1/8

10 3.3 13/8 11/23/8

1/8

12 3.3 15/8 13/47/16

5/32

14 3.8 17/8 2 1/25/32

6 2.8 7/8 1 1/41/8

8 3.3 11/8 11/45/16

1/8

10 3.3 13/8 11/23/8

1/8

12 3.8 15/8 13/47/16

5/32

14 3.8 17/8 2 1/25/32

16 4.3 21/45/8

7/32

18 4.4 23/8 21/25/8

3/16

8 3.3 11/45/16

1/8

10 3.3 13/8 11/23/8

1/8

12 3.3 15/8 13/47/16

5/32

14 3.8 17/8 2 1/25/32

16 4.3 21/4 23/8 21/25/8

7/32

18 4.4 25/8 23/4 3 3/41/4

20 4.9

10 3.3 11/23/8

1/8

12 3.3 15/8 13/47/16

5/32

14 3.8 2 1/25/32

16 4.3 21/4 23/8 21/25/8

7/32

18 4.4 23/4 3 3/41/4

20 4.9 31/4 33/87/8

5/16

22 5.4 31/27/8

1/4*25 5.412 3.3 13/4

7/165/32

14 3.8 2 1/25/32

16 4.3 21/4 23/8 21/25/8

7/32

18 4.4 23/4 3 3/41/4

20 4.9 31/4 31/27/8

5/16

22 5.4 33/4 4 1 1/4*25 5.428 6.416 4.3 21/4 23/8 21/2

5/87/32

18 4.4 23/4 3 3/41/4

20 4.9 31/4 31/27/8

5/16

22 5.4 33/4 4 1 3/8

25 5.4 41/4 41/2 11/41/4*

28 6.4

†Bore size 65mm has keyway 2.3mm deep on 2525 Bush * Shallow Key not to B.S. 46 Part 1.**Shallow Key not to B.S. 4235 Part 1.

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Minimum numberof teeth on pulley Z min

Minimum Diameterof outside idler di

Polyurethanecase

Steel Tension Members

Special ToothForm

Green Belt linear Drives

24

Green Power Polyurethane Metric BeltsThe Green Power Polyurethane Timing Belt offers a highlyefficient, high strength system for the transmission oflinear power in transfer systems.Utilising the Megadyne RPP tooth form the belts can beusedwith standard pulleys to metric pitches 5mm (5M), 8mm(8M) and 14mm(4M) with standard width belts able to handle loads up to 3,700kg with speeds up to 80m/sec.The body of the belt is Polyurethane with a hardness of 85 Shore A to provide good tooth strength to resist thehigh shock and surge loads encountered in reciprocatingdrives. High strength steel tension members provide highbreaking strength combined with low elasticity.The teeth are faced with a green nylon fabric which increases tooth strength; reduces the coefficient of frictionbetween belt and pulley, improving meshing with the pulley and reducing noise levels. The nylon has good wearproperties and ensures a clean drive media.Extensive development has resulted in a homogeneouscombination of all components, the cohesive bond imparting superior load carrying capacity giving the GreenPower Belts the ability to exceed the performance of otherbelts already in the market place.The parabolic profile of the Standard Green Power Belts hasa contact angle which increases from the base of the toothto the top, permitting an increased tooth profile comparedto other metric belts. The parabolic shape and tooth depthprovide the following advantages:-

" Reduced interference between belt and pulley improving meshing characteristics.

" Reduced noise levels." Increased resistance to tooth jumping." Increased shear strength." Increased torque capacity." Reduced installation tension. " Controlled deformation of the softer top section of the

tooth.

The belts are manufactured in a continuous process withthe steel tensile member parallel to belt edge. The openended belts are available in 50-100 metre rolls, but can be

Belt Size

U5MU8M

HPU8MU14M

Pitchmm

Tooth LengthA

mm

Tooth HeightB

mm

Belt Thick.C

mm

Tol. Thickness

mm

Min.NumberPulley Teeth

Z min

Min.DiameterOutside Idler

di mm588

14

3.355.505.509.50

23.23.2

6

3.85.45.410

+_ 0.200.300.300.40

+_+_+_

12182232

60100150250

Green Power Belt Dimensions

Standard Green Power Belt Dimensions

Cat. No Widthmm

Width Tol.mm

Working LoadFm Max. N

Breaking LoadN

Elasticitymm/m/1000N

Weightkg/m

U5M10EU5M15EU5M25EU5M30EU5M50E

U8M10EU8M15EU8M20EU8M30EU8M50EU8M85E

U8M100E

HPU8M10EHPU8M20EHPU8M30EHPU8M50EHPU8M85E

HPU8M100E

U14M40EU14M55EU14M85E

U14M115E

PitchP

mm

55555

8888888

888888

14141414

1015253050

101520305085

100

1020305085

100

405585

115

1015253050

101520305085

100

1020305085

100

405585

115

0.50.50.50.50.5

0.50.50.50.50.50.50.5

0.50.50.50.50.50.5

1.01.01.01.0

+_+_+_+_

+_+_+_+_+_+_+_

+_+_+_+_+_

+_+_+_+_+_+_

+_+_+_+_

8751330170023754750

14602190302044807100

1265015800

2000365059709370

1696019850

12300167502850036500

2680402072308050

15000

54608190

1092017290309405360063995

82501815026400462007755090750

4920067650

104550144525

4.503.001.651.450.83

2.501.951.350.850.550.320.24

2.001.050.670.430.240.21

0.320.240.140.11

0.03910.05860.09770.11720.1953

0.06570.09850.13130.19700.32830.55800.6565

0.07070.14170.21220.35280.60220.7085

0.47100.64701.00001.3553

A

Pitch p

B C

Mechanical Features ofGreen Power Linear Belts" Dimensional consistency." Low pre-tension requirement." Low noise levels." High abrasion resistance." No maintenance." High flexibility. " Linear speeds up to 80m/sec" High positional accuracy

Chemical Features of Green Power Linear Belts" Working temperatures -30°C to +85°C and up to

+110°C for short periods." High resistance to Oils and Greases." Moderate resistance to Acids and Alkaline solutions." Resistant to Ozone, UVA rays, Hydrolysis and Ageing." Non flaking, non- toxic, suitable for food and clean

room applications." The PU body is suitable for joining with other

thermoplastic materials.

Endless BeltsEndless Belts can be produced by welding open endedlengths, a multi-finger connection being used to minimisestrength loss.Also a limited range of endless manufactured bolts is available from 1.9 metre length for power transmission applications. These can be provided backed with Linatex,Tenax and softer PU compounds.

ZZ

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A Green Belt used for linear application can be selected either by consideration of the loads and accelerativeforces applied to the belt, or by the power applied to the driving pulley and the speed of rotation.

Green Belt Selection Procedure

For vertical drivesCorrected value Fp = (M+ MB + Mc) a + 9.807M + FF...NIf significantly changed recheck belt width - section 6.The belt can then be specified by type - width x length e.g.

U5M 20E x 1500 - 1500mm length belt

Terms and Definitions :-a = acceleration m/secA = centre distance pulley shafts mmb = belt width cmd = bore of pulley mmdo = outside diameter of pulley mmdp = pitch diameter of pulley mmF = total force seen by belt NFF = friction forces seen by belt NFm = max. acceptable force for belt (table p23) NFp = linear driving force NFs = tooth shear resistance (see table below) N/cmFT = total force seen by belt NFx = fitting tension for belt (see p25) NL = length of belt mmLc = length of moving carriage mmLm= distance moved by carriage mmmB = unit weight of belt ( table p23) gm/mM = weight of moving components (carriage) kgMB = weight of belt length

= mB x L kgMc = compensated weight for pulley

= Mp 1+ d2

2 do2

Mp= weight of idler pulley kgN = shaft speed r.p.mp = belt pitch mmP = drive power KWV = belt/carriage linear speed m/secZ = number of teeth on pulleyZm= number of teeth in mesh with belt =12 max

(

In order to select the Green Belt it is first necessary to compiletogether, dependant on method of selection, the following relevant design parameters.

a) Is drive horizontal or verticalb) The mass of all moving parts to be moved by the belt.c) Maximum Belt velocityd) Maximum rate of acceleratione) Frictional forces due to load being movedf) Desired Pulley, diametersg) Pulley Centres/Total length of movement required h) Driving Motor Poweri) Driving Pulley speed (r.p.m.)j) Any width constrictions

Selection of Belt Considering Motor Power1) Use Power and Pulley speed to select size (pitch) of belt

from graph 1 opposite. 2) Considering the desired pulley diameter determine number

of teeth in pulley No. Teeth Z = dp x#

p 3) From Tooth Shear Resistance table against Pulley Speed

‘N’ determine value for Fs for selected belt size.4) Determine numbers of pulley teeth in mesh Zm, normally

equals z/2, Zm has a maximum Value of 125) Then Belt Width b = P x 12 x 106 mm

Fs x Zm x Z x NSelect next larger standard width to width calculated

6) Belt length L = 2A + Zxp mmWhere centre distance not specified but carriage motiondistance is, the min. pulley centre can be determined as:-

Amin = Lm + Lc + dp. mmThe belt can then be specified by type - width x length e.g.

U8M 50E X 2600 - 2600mm length belt.

Selection of Belt considering loads and accelerative forces

1) Calculate the linear drive force FpFor Horizontal drives Fp = M x a + FF NFor Vertical drives Fp = M (9.807+a)+ FF NFrom table below select size of belt for the application

2) Considering the desired pulley diameter determine numberof teeth in pulley

3) Determine Pulley speed, r.p.m. from linear speed of belt V.N = 60V x1000 r.p.m

Zxp4) From Tooth Shear Resistance table against Pulley Speed ‘N’,

determine value for Fs for selected belt size.5) Determine number of pulley teeth in mesh Zm, normally

equals Z/2. Zm has a maximum value of 12.6) Then belt width b = Fp mm

Fs x ZmSelect next larger standard width to width calculated.

7) Belt Length L = 2A + Zxp mmWhere Centre distance not specified but carriage motion distance is, the min. pulley centre distance can be determined as:-A min. = Lm + Lc +dp mm

0 - 920 500 - 3650500 - 3800

1000 - 9000

25

Drive Load RangeNSize of Belt Max Rate acceleration

m/sec2

U5MU8M

HPU8MU14M

80606040

No. Teeth Z = dp x #p

Value for Teeth Shear Resistance Fs N/cm by belt sizePulley SpeedN r.p.m U5M

020406080

100200300400500600700800900

10001100120013001400150016001700180020002200240026002800300032003400360038004000450050005500600065007000750080009000

10000

U8M HPU8M UI4M

Tooth Shear Resistance

8) Having determined a belt size and length the calculationfor linear drive force can be recalculated incorporating thebelt weight and idler pulley (the drive pulley inertia doesnot effect the belt forces, for horizontal drives.)Corrected value Fp = (M + MB + Mc) a + FF... N

(36.7036.3636.0235.6835.3435.0032.8531.5030.4529.5528.5827.7827.1026.5226.0025.5425.1324.7524.4024.0823.7823.5023.2422.7522.3121.9121.5421.1920.8620.5420.2419.9619.6819.4118.7618.1417.5316.9416.3415.7515.1514.5413.2811.97

75.7174.7273.7372.7471.7570.7665.1062.0059.7557.3555.5053.6452.0850.7349.5448.5047.5646.7045.9245.2044.5343.9043.3142.2441.2740.4039.5838.8338.1237.4436.8036.1935.6235.0433.6832.3931.1529.9328.7427.5326.3325.1122.6220.04

75.7174.7273.7372.7471.7570.7665.1062.0059.7557.3555.5053.6452.0750.7249.5448.4947.5446.6945.9045.1844.5143.8843.2942.2141.2440.3539.5338.7738.0537.3736.7236.0935.5034.9133.5232.2030.9229.6628.4127.1525.8924.6222.0019.27

139.65137.37135.03132.81130.53128.24118.00111.00105.00100.5196.0492.3989.3186.6484.2882.1780.2578.4976.8675.3473.9072.5471.2568.8166.5464.3862.3060.2958.3256.3854.4652.5450.6248.6943.8138.7733.5328.0722.34_

____

Thus for our example B to get a tension of 2,500N we must extend the belt by 215 x 0.55 = 1.375 mm/m.As the existing centres are 2500 mm the total extension will be2.5 x 1.375 = 3.44 mm.Under working conditions the total load seen by either strand of the belt equals the fitting tension + working load.

Total Load FT = Fp + Fx NFor our example FT = 2061 + 2500 = 4561N

It is imperative this load does not exceed the maximum working load FM max shown in table bottom of page 24

FM ≥ FT For U8M50E belt FM = 7100N so selection in example is o.k.,otherwise a wider belt would have been required.

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U14M

U5M

U8M & HPU 8M

B) Carriage to be moved vertically by belt on 2500 mm pulley centres, Weight of carriage 100kg moves max velocity 3m/sec with max acceleration 10m/sec2 , Frictional loss 50N with pulleys to be approx 75 mm diameter.

1) Calculate driving force Fp = M(9.807+ a) + FF N

= 100(9.807+10) + 50 = 2030.7NFrom table p23 belt size should be U8M

2) Calc No. Teeth Pulley Z = dp x # = 75#=29.45 " 30 teethp 8

For 30 tooth pulley actual dp = 76.4 mm3) Determine pulley speed N = 60 V .1000 = 750 r.p.m

Z x p4) From Tooth Sheer Resistance table, p25, determine value Fs

@ 800 r.p.m = 52.085) Determine teeth in mesh Zm = z/2 = 30/2 = 15 but 12 is max6) Determine belt width b = Fp = 2030.7 = 3.25 cm

Fs x Zm 52.08 x 12 Next larger standard width is 50 mm

7) Belt length L = 2A + Z x p mm = 5240 mm8) Check corrected value for Fp including belt weight

Corrected Fp = (M + MB + Mc) a + 9.807M + FF N= (100 + 1.85 + 1.15) 10 + 9.807 x 100 + 50 N= 1030 + 981 + 50 = 2061 N

Change to original figure minimal so belt selection stands.Thus belt specification is U8M50E x 5240

Belt Selection examplesA) Belt required to drive oscillating table powered by 0.2kw motor

gearbox driving pulley at 270 r.p.m. The belt is required to havepulley centres 2000mm and pulley diameters approx 25mm.

1) By consideration of the Power and Speed values in table abovewe will select a U5M belt.

2) Considering the pulley diameter (25mm) we can determineNo.Teeth Z = dp x # = 25# = 15.7 " 16 Teeth

p 5

For 16 tooth pulley actual dp = 25.46mm.3) From Tooth Shear Resistance table, p24, determine value Fs for

pulley speed (use table values next above).@ 300r.p.m Fs = 31.50

4) Determine no teeth in mesh. As this is a conveyor with equalpulleys :- Zm = z/2 = 8

5) Belt width is from equation b = p x 12 x 106

Fs x Zm x Z x N= 0.2 x 12 x 10

31.50 x 8 x 16 x 270= 2.2 cm

next largest belt standard width = 25 mm6) Belt length L = 2A + Z x p mm

= 4080 mmThus belt specification is U5M25Ex 4080

6

Belt TensioningThe belt tension is determined by the value of the driving force Fp. The fitting tension Fx must ensure that both strands of thebelt run without sagging, as otherwise the accuracy of transmission and belt life would be compromised. Thus the fittingtension should always exceed the maximum driving force, and isapplied to both strands of the belt.

F x > FpThus in example B where Fp max is 2061N a sensible belt tension could be 2,500 N.Determining the fitting tension is simple, in that the centre distance of the pulleys is increased to a level equal to the elasticstretch of the belt under this load. Values for elasticity of belts isprovided in Std Belt Dimensions table. (Page 24)

Shaft Speed RPM min -1

Des

ign

pow

er k

w

Green Belt Selection and Application

0.01

Green Belt Selection Table

1

10

100

1000

0.1

10,0001,000100101

26

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The belts are standard construction stock length and width sizes. Other pitches, widths, and special constructions can be supplied to order. Special Constructions include: Ground-back Belts, Static Conductive, Oil Resistant, High Temperature Resistant andDouble Sided Construction. For further details contact Cross+Morse Technical Department.

3/8‚‚ Wide Belt

Classical Series Timing Belts

Classical Series Timing Belts are manufactured in 5 pitch sizes,XL (1/5), L (3/8”), H (1/2”), XH (7/8”) and XXH (11/4”). Standard stocklengths and widths are shown below, the XH and XXH Seriesbeing available to order. Although in many designs ClassicalBelts have been replaced by the new Parabolic Belts they arestill preferred on some drives due to lower cost, larger selectionstock belts and pulleys and their suitability for low torque highspeed applications.

Standard Stock Timing Belt Sizes

XL Series - 1/5” Pitch

Timing Belt ConstructionThe classical timing belt consists of four components.Cable Tension Member: A continuous helically wound glass fibrecable is the load carrying element at the heart of the belt. Thistension member provides the belt with enormous tensilestrength with a high level of flexibility.Polychloroprene Backing: A thin, strong, wear resistant polychloroprene rubber sleeve is bonded to the tension cable toprovide a flexible protection. Polychloroprene Teeth: Moulded integral with the polychloro-prene backing, made of moderately hard, shear resistant rubber compound, the teeth are accurately formed and preciselyspaced pulley engagement.Nylon Facing: A tough, wear resistant nylon duck, with lowcoefficient of friction, protects the wearing surface of the teethin the same manner as case hardening protects the surface ofsteel.

Special Construction BeltsBelts for special applications can be produced to order in minimum batch sizes.Anti- Static Belts: Belts conforming to BS 2050 Standard can be provided on all standard belt sizes. These belts are for applications where static discharges must be avoided, such aschemical plants, mines and oil refineries. High Temperature Belts: For applications in confined areas with elevated temperatures, these belts can operate at up to 120˚C.Oil Resistance Belts: For areas where belts could be subject to frequent contact with lubricating oils.

Belts with a combination of these features can also be offered.Ground Back Belts: All belts supplied by Cross+Morse have groundbacks and uniform tension member to ensure smooth running. For very sensitive drives the belt thickness tolerance can be tightened from the standard ± 0.6mm to ± 0.25mm (Class 2) or even ± 0.15mm (Class 1). These belts provide improved accuracy of drive on positioning applications.Other Pitch and Widths of Belts: Belts can also be provided in 2mmpitch MXL, 7/8 inch pitch XH and 11/4 inch pitch XXH, for replacement purposes. Widths up to mould turn (approx 400mm) can be supplied.

27

Belt LengthCode

54XL60XL70XL80XL90XL98XL

100XL102XL106XL110XL120XL130XL140XL150XL156XL160XL170XL180XL182XL190XL198XL200XL202XL210XL212XL214XL

PitchLength

mm

No.Teeth

N

1/4‚‚ Wide Belt

Cat. No Wt.gms Cat. No Wt.gms

137.16152.40177.80203.20228.60248.92254.00259.08269.24279.40304.80330.20355.60381.00396.24406.40431.80457.20462.28482.60502.92508.00513.08533.40538.48543.56

273035404549505153556065707578808590919599

100101105106107

54XL 02560XL 02570XL 02580XL 02590XL 02598XL 025

100XL 025102XL 025106XL 025110XL 025120XL 025130XL 025140XL 025150XL 025156XL 025160XL 025170XL 025180XL 025182XL 025190XL 025198XL 025200XL 025202XL 025210XL 025212XL 025214XL 025

2.02.32.62.93.33.63.73.73.94.04.44.85.15.55.75.96.26.66.77.07.37.37.47.77.87.9

54XL 03760XL 03770XL 03780XL 03790XL 03798XL 037

100XL 037102XL 037106XL 037110XL 037120XL 037130XL 037140XL 037150XL 037156XL 037160XL 037170XL 037180XL 037182XL 037190XL 037198XL 037200XL 037202XL 037210XL 037212XL 037214XL 037

2.93.33.84.44.95.35.55.65.86.06.57.07.68.28.58.79.39.8

10.010.410.911.011.111.511.711.8

TensionMember

Nylon Facing

Polychloroprene Teeth

Polychloroprene Backing

3/8‚‚ Wide BeltBelt

LengthCode

220XL228XL230XL234XL240XL250XL260XL270XL276XL290XL310XL316XL320XL330XL344XL352XL364XL380XL384XL390XL392XL434XL530XL600XL710XL

PitchLength

mm

No.Teeth

N

1/4‚‚ Wide Belt

Cat. No Wt.gms Cat. No Wt.gms

558.80579.12584.20594.36609.60635.00660.40685.80701.04736.60787.40802.64812.80838.20873.76894.08924.56965.20975.36990.60995.68

1102.361346.201524.001803.40

110114115117120125130135138145155158160165172176182190192195196217265300355

220XL 025228XL 025230XL 025234XL 025240XL 025250XL 025260XL 025270XL 025276XL 025290XL 025310XL 025316XL 025320XL 025330XL 025334XL 025352XL 025364XL 025380XL 025384XL 025390XL 025392XL 025434XL 025530XL 025600XL 025710XL 025

8.18.48.48.68.89.29.59.9

10.110.611.411.611.712.112.612.913.313.914.114.314.415.919.422.026.0

220XL 037228XL 037230XL 037234XL 037240XL 037250XL 037260XL 037270XL 037276XL 037290XL 037310XL 037316XL 037320XL 037330XL 037344XL 037352XL 037364XL 037380XL 037384XL 037390XL 037392XL 037434XL 037530XL 037600XL 037710XL 037

12.112.512.612.913.213.714.314.815.215.917.117.417.618.118.919.420.020.921.121.421.623.929.133.039.1

CROSS+MORSE



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L Series - 3/8” Pitch

BeltLengthCode

PitchLength

mm

No.Teeth

N

1/2” Wide Belt 3/4” Wide Belt 1” Wide Belt

Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg.

124L135L150L173L187L202L210L225L240L255L270L285L300L322L345L367L390L405L412L420L450L480L510L540L600L728L817L

240H270H300H330H360H390H420H450H480H510H540H570H600H630H660H700H725H750H800H850H900H

1000H1100H1120H1140H1150H1250H1400H1700H

240H 075 270H 075 300H 075330H 075360H 075390H 075420H 075450H 075480H 075510H 075540H 075570H 075600H 075630H 075660H 075700H 075725H 075750H 075800H 075850H 075900H 075

1000H 0751100H 0751120H 0751140H 0751150H 0751250H 0751400H 0751700H 075

609.60685.80762.00838.20914.40990.60

1066.801143.001219.201295.401371.601447.801524.001600.201676.401778.001841.501905.002032.002159.002286.002540.002794.002844.802895.602921.003175.003556.004318.00

485460667278849096

102108114120126132140145150160170180200220224228230250280340

.052

.058

.065

.071

.078

.084

.091

.097

.104

.110

.116

.122

.129

.135

.142

.151

.156

.161

.172

.183

.194

.215

.237

.241

.246

.248

.269

.301

.366

240H 100270H 100300H 100330H 100360H 100390H 100420H 100450H 100480H 100510H 100540H 100570H 100600H 100630H 100660H 100700H 100725H 100750H 100800H 100850H 100900H 100

1000H 1001100H 1001120H 1001140H 1001150H 1001250H 1001400H 1001700H 100

.069

.077

.088

.096

.104

.114

.120

.129

.138

.146

.155

.163

.171

.180

.189

.200

.208

.215

.229

.243

.258

.286

.315

.321

.326

.329

.358

.401

.487


1000H 1501100H 1501120H 1501140H 1501150H 1501250H 1501400H 1501700H 150

.103

.116

.131

.142

.155

.167

.180

.193

.206

.219

.232

.245

.258

.270

.284

.301

.311

.322

.343

.365

.386

.429

.472

.481

.489

.493

.537

.601

.730


1000H 2001100H 2001120H 2001140H 2001150H 2001250H 2001400H 2001700H 200

.137

.154

.175

.193

.207

.228

.240

.258

.275

.292

.309

.326

.343

.360

.378

.400

.415

.430

.458

.487

.515

.572

.630

.641

.653

.659

.716

.801

.973


1000H 3001100H 3001120H 3001140H 3001150H 3001250H 3001400H 3001700H 300

.206

.231

.263

.289

.311

.341

.360

.386

.412

.438

.464

.489

.515

.540

.567

.601

.623

.644

.687

.730

.773

.859

.944

.961

.978

.9871.0731.2011.460

124 L050135 L050150 L050173 L050187 L050202 L050210 L050225 L050240 L050255 L050270 L050285 L050300 L050322 L050345 L050367 L050390 L050405 L050412 L050420 L050450 L050480 L050510 L050540 L050600 L050728 L050817 L050

124 L075135 L075150 L075173 L075187 L075202 L075210 L075225 L075240 L075255 L075270 L075285 L075300 L075322 L075345 L075367 L075390 L075405 L075412 L075420 L075450 L075480 L075510 L075540 L075600 L075728 L075817 L075

124L 100135L 100150L 100173L 100187L 100202L 100210L 100225L 100240L 100255L 100270L 100285L 100300L 100322L 100345L 100367L 100390L 100405L 100412L 100420L 100450L 100480L 100510L 100540L 100600L 100728L 100817L 100

314.33342.90381.00438.15476.25514.35533.40571.50609.60647.70685.80723.90762.00819.15876.30932.18990.60

1028.701047.751066.801143.001219.201295.401371.601524.001847.852076.45

33364046505456606468727680869298

104108110112120128136144160194218

.015

.017

.019

.020

.022

.023

.025

.026

.028

.030

.032

.034

.035

.038

.040

.043

.046

.047

.048

.049

.054

.058

.062

.065

.070

.085

.095

BeltLengthCode

Pitch Lengthmm

No.Teeth

N

1/2” Wide Belt 11/2” Wide Belt1” Wide Belt 2” Wide Belt 3” Wide Belt

Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg.

.023

.023

.026

.030

.034

.035

.038

.039

.042

.045

.047

.049

.053

.056

.060

.063

.068

.071

.072

.074

.078

.083

.089

.093

.105

.128

.142

.031

.034

.038

.039

.044

.046

.051

.052

.056

.060

.063

.068

.070

.075

.081

.085

.091

.095

.096

.098

.105

.116

.120

.130

.139

.170

.190

Standard Stock Timing Belt Sizes

The belts are standard construction stock length and width sizes. Other pitches, widths, and special constructions can be suppliedto order. Special Constructions include: Ground-back Belts, Static Conductive, Oil Resistant, High Temperature Resistant. For further details contact Cross+Morse Technical Department. Standard Belts to XH and XXH formats can be supplied on short delivery time.

Open Ended Classical Series BeltsOpen ended classical belts are available all sizes of classical belts for application on reciprocating drives, etc. All belts operate onstandard pulleys and can be secured by clamping plates ( page 44).

Cat. No Belt Type Pitch mm Width mm No. Teeth/Metre Wt/Metre gms Std. Length

XL025EXL031EXL037EL050EL075EL100EH050EH075EH100E

XL025XL031XL037L050L075L100H050H075H100

5.085.085.089.539.539.53

12.7012.7012.70

6.47.99.5

12.719.125.412.719.125.4

196.8196.8196.8105.0105.0105.078.778.778.7

14.418.021.645.768.491.556.584.8

113.0

110m90m70m90m70m50m70m70m70m

H Series - 1/2” Pitch

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29


Double Sided Classical Belts Construction of these belts same as standard Classical Belts, but with teeth on both sides of the belt. Both faces of belt have nylonfacing for wear resistance. These belts enable driving of pulleys by both sides of belt.

XL Series Double Sided Belts - 1/5” Pitch

L Series Double Sided Belts - 3/8” Pitch

H Series Double Sided Belts - 1/2” Pitch

BeltLengthCode

PitchLength

mm

No.Teeth

N

1/4” Wide Belt 3/8” Wide Belt

Cat. No. Wt. kg. Cat. No. Wt. kg.

BeltLengthCode

PitchLength

mm

No.Teeth

N

1/2” Wide Belt 3/4” Wide Belt 1” Wide Belt

Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg.


304.80330.20355.60381.00396.24406.40431.80457.20462.28482.60502.92508.00513.08533.40538.48543.56558.80579.12584.20594.36

6065707578808590919599

100101105106107110114115117

124L135L150L173L187L202L210L225L240L255L270L285L300L322L345L367L390L405L412L420L450L480L510L540L600L728L817L

240H270H300H330H360H390H420H450H480H510H540H570H600H630H660H700H725H750H800H850H900H

1000H1100H1120H1140H1150H1250H1400H1700H

240H075DD270H075DD300H075DD330H075DD360H075DD390H075DD420H075DD450H075DD480H075DD510H075DD540H075DD570H075DD600H075DD630H075DD660H075DD700H075DD725H075DD750H075DD800H075DD850H075DD900H075DD

1000H075DD1100H075DD1120H075DD1140H075DD1150H075DD1250H075DD1400H075DD1700H075DD

609.60685.80762.00838.20914.40990.60

1066.801143.001219.201295.401371.601447.801524.001600.201676.401778.001841.501905.002032.002159.002286.002540.002794.002844.802895.602921.003175.003556.004318.00

485460667278849096

102108114120126132140145150160170180200220224228230250280340

.052

.058

.065

.071

.078

.084

.091

.097

.104

.110

.116

.122

.129

.135

.142

.151

.156

.161

.172

.183

.194

.215

.237

.241

.246

.248

.269

.301

.366



.069

.077

.088

.096

.104

.114

.120

.129

.138

.146

.155

.163

.171

.180

.189

.200

.208

.215

.229

.243

.258

.286

.315

.321

.326

.329

.358

.401

.487



.103

.116

.131

.142

.155

.167

.180

.193

.206

.219

.232

.245

.258

.270

.284

.301

.311

.322

.343

.365

.386

.429

.472

.481

.489

.493

.537

.601

.730



.137

.154

.175

.193

.207

.228

.240

.258

.275

.292

.309

.326

.343

.360

.378

.400

.415

.430

.458

.487

.515

.572

.630

.641

.653

.659

.716

.801

.973



.206

.231

.263

.289

.311

.341

.360

.386

.412

.438

.464

.489

.515

.540

.567

.601

.623

.644

.687

.730

.773

.859

.944

.961

.978

.9871.0731.2011.460

124L050DD135L050DD150L050DD173L050DD187L050DD202L050DD210L050DD225L050DD240L050DD255L050DD270L050DD285L050DD300L050DD322L050DD345L050DD367L050DD390L050DD405L050DD412L050DD420L050DD450L050DD480L050DD510L050DD540L050DD600L050DD728L050DD817L050DD



314.33342.90381.00438.15476.25514.35533.40571.50609.60647.70685.80723.90762.00819.15876.30932.18990.60

1028.701047.751066.801143.001219.201295.401371.601524.001847.852076.45

33364046505456606468727680869298

104108110112120128136144160194218

.015

.017

.019

.020

.022

.023

.025

.026

.028

.030

.032

.034

.035

.038

.040

.043

.046

.047

.048

.049

.054

.058

.062

.065

.070

.085

.095

BeltLengthCode

Pitch Lengthmm

No.Teeth

N

1/2” Wide Belt 11/2” Wide Belt1” Wide Belt 2” Wide Belt 3” Wide Belt

Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg. Cat. No. Wt. kg.

.022

.024

.026

.030

.034

.035

.038

.039

.042

.045

.047

.049

.053

.056

.060

.063

.068

.071

.072

.074

.078

.083

.089

.093

.105

.128

.142

.031

.034

.038

.039

.044

.046

.051

.052

.056

.060

.063

.068

.070

.075

.081

.085

.091

.095

.096

.098

.105

.116

.120

.130

.139

.170

.190

4.44.85.15.55.75.96.26.66.77.07.37.37.47.77.87.98.18.48.48.6

6.57.07.68.28.58.79.39.8

10.010.410.911.011.111.511.711.812.112.512.612.9

120XL025DD130XL025DD140XL025DD150XL025DD156XL025DD160XL025DD170XL025DD180XL025DD182XL025DD190XL025DD198XL025DD200XL025DD202XL025DD210XL025DD212XL025DD214XL025DD220XL025DD228XL025DD230XL025DD234XL025DD


BeltLengthCode

PitchLength

mm

No.Teeth

N

1/4” Wide Belt 3/8” Wide Belt

Cat. No. Wt. kg. Cat. No. Wt. kg.


609.60635.00660.40685.80701.04736.60787.40802.64812.80838.20873.76894.08924.26965.20975.36990.60995.68

1102.361346.201524.00

120125130135138145155158160165172176182190192195196217265300

8.89.29.59.9

10.110.611.411.611.712.112.612.913.313.914.114.314.415.919.422.0

13.213.714.314.815.215.917.117.417.618.118.919.420.020.921.121.421.623.929.133.0



CROSS+MORSE



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F

E

Classical Timing Belt Pulleys have evenly spaced grooves cut in their periphery, to make correct, positive engagement with themating teeth of the belt. Cross+Morse pulleys are manufactured with involute groove form to enable the teeth to enter and leavethe pulley with negligible friction and minimum backlash.Pulleys are available in a number of stock widths and large selection of numbers of teeth to provide maximum versatility in driveselection. Pulleys for 3/8” pitch ‘L’, and 1/2” pitch ‘H’, drives are available with pilot bore for reworking to customers requirementsor with taper bush for the complete off the shelf drive. All pulleys are precision manufactured to close tolerances to ensure concentric running, and it is important when reworking stock pulleys to accurately locate on the outside diameter to maintainconcentricity.Pulleys of non-standard widths or numbers of teeth can be supplied to order, or alternately teeth can be cut on customers blanks.All pulleys are manufactured in good quality steel except for larger pulleys where cast iron is used (1/5” pitch ‘XL’, aluminium castings). Generally pulleys up to 48 teeth are supplied with two flanges to retain the timing belt. These flanges are accuratelymachined, pressed onto the pulley bodies and retained by spin rivetting. Dimensions over and between flanges for standard pulleys are indicated below. The dimension over the flanges is generally the same as recommended width of tooth for unflanged pulleys.

ApproxWeight

kg

RimDiameter

N

Classical Timing Belt Pulleys

30

Catalogue No.No.

TeethZ

PulleyType

PitchCircle

Dia. dp

Max.Bore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

10XL03711XL03712XL03714XL03715XL03716XL03718XL03720XL03721XL03722XL03724XL03726XL03728XL03730XL037

32XL03736XL03740XL03742XL03744XL03748XL03760XL03772XL037

Pulley Types

Min.Bore

d

1/5” Pitch Pulleys for 3/8” Wide Belts. Ref. XL037

Belt Size

Belt Width Ref.

Belt Width

E

F min.

(1/5”) XL

XL0373/8”

10.7

14.3

L0501/2”

14.3

19.0

L0753/4”

20.8

25.5

L100

1”

27.0

32.0

H1001”

27.0

32.0

H150

11/2”

40.0

45.0

H200

2”

53.0

58.0

H300

3”

79.0

84.0

(3/8”) L (1/2”) H

Standard Pulleys for XL (1/5” pitch) Belts

1011121415161820212224262830

3236404244486072


11122222

16.1717.7919.4022.6424.2625.8729.1132.3433.9635.5738.8142.0445.2848.51

51.7458.2164.6867.9171.1577.6297.02

116.43

4.04.04.06.06.06.06.06.06.06.06.06.06.06.0

8.08.08.08.08.08.08.08.0

6789

11121315151618202024

2525252525252525

15.717.318.922.123.825.428.631.833.535.138.341.544.848.0

51.257.764.267.470.677.196.5

115.9

2323252828323538384144485154________

14.314.314.314.314.314.314.314.314.314.314.314.314.314.3

14.314.314.314.314.314.314.314.3

19.819.819.819.819.819.819.822.222.222.222.222.222.222.2

25.425.425.425.425.425.425.425.4

9.511.012.714.315.917.520.623.823.825.427.030.030.234.9

38.038.038.038.038.038.038.038.0

______________

___

58606682

100

0.010.020.020.030.040.050.060.080.090.100.120.140.160.19

0.110.130.170.130.140.150.180.27

All dimensions in mm.Pulleys of 32 teeth and above manufactured in aluminium. Smaller pulleys in steel.All pulleys provided with 2 setscrews of 90°, 10T-12T size M3, all others M4.

L

F

d MA dp do d Mdo

FL

dp

FL

dodp N d M

Type 1(Aluminium)

Type 2(Aluminium)

Type 1F(Steel)

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L

F

d MA dp do


Type 2Material: Cast Iron

Webs have lightening holes

FL

dodp N d M

P10L050P12L050P13L050P14L050P15L050P16L050P17L050P18L050P19L050P20L050P21L050P22L050P24L050P26L050P28L050P30L050P32L050P36L050P40L050P44L050P48L050

P60L050P72L050P84L050P96L050

101213141516171819202122242628303236404448

60728496

30.3236.3839.4142.4545.4848.5151.5454.5757.6160.6463.6766.7072.7778.8384.8990.9697.02

109.15121.28133.40145.53

181.91218.30254.68291.06

888888

101010101010101111111111111111

14141414

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F

2222

131519192324242727273030363838464646464646

45454545

29.635.638.741.744.747.850.853.856.859.962.965.972.078.184.190.296.3

108.4120.5132.6144.8

181.2217.5253.9290.3

37434448515457606466.5707579869197

102115128142150

____

191919191919191919191919191919191919191919

19191919

283030303032323232323232323232323232323232

42424242

202428283436364040404545555858707070707070

75757575

_____________________

163199236272

0.120.160.190.220.290.340.380.420.460.500.570.610.810.911.031.271.351.651.702.352.68

1.902.422.863.30

CatalogueNo.

31

Plain Bore Pulleys for‘L’ Series Timing Belts

Pulley TypesThe Pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Pulley below dividing line in tables are manufactured in cast iron. Std.Pulleys can be reworked tocustomers bore and keywayrequirements.

No.Teeth

Z

PulleyType

PitchCircle

Diameterdp

Min.Bore

d

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

RimDiameter

N

3/8” Pitch Pulleys for 1/2” wide Belts. Ref. L050

Approx.Weight

kg


P12L075P13L075P14L075P15L075P16L075P17L075P18L075P19L075P20L075P21L075P22L075P24L075P26L075P28L075P30L075P32L075P36L075P40L075P44L075P48L075

P60L075P72L075P84L075P96L075

1213141516171819202122242628303236404448

60728496

36.3839.4142.4545.4848.5151.5454.5757.6160.6463.6766.7072.7778.8384.8990.9697.02

109.15121.28133.40145.53

181.91218.30254.68291.06

88

111111111111111111111111111111111111

14141414

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F

2222

1519192324242727273030363838464646464646

45454545

35.638.741.744.747.850.853.856.859.962.965.972.078.184.190.296.3

108.4120.5132.6144.8

181.2217.5253.9290.3

434448515457606466.5707579869197

102115128142150

____

2525252525252525252525252525252525252525

25252525

3838383838383838383838383838383838383838

45454545

2428283436364040404545555858707070707070

75757575

____________________

163199236272

0.220.250.270.340.430.470.510.550.590.640.770.971.081.201.371.542.102.553.053.55

2.632.843.423.85

3/8” Pitch Pulleys for 1” wide Belts. Ref. L100

P12L100P13L100P14L100P15L100P16L100P17L100P18L100P19L100P20L100P21L100P22L100P24L100P26L100P28L100P30L100P32L100P36L100P40L100P44L100P48L100

P60L100P72L100P84L100P96L100

36.3839.4142.4545.4848.5151.5454.5757.6160.6463.6766.7072.7778.8384.8990.9697.02

109.15121.28133.40145.53

181.91218.30254.68291.06

88

111111111111111111111111111111111111

14141414

1519192324242727273030363838464646464646

45454545

35.638.741.744.747.850.853.856.859.962.965.972.078.184.190.296.3

108.4120.5132.6144.8

181.2217.5253.9290.3

3232323232323232323232323232323232323232

32323232

4545454545454545454545454545454545454545

45454545

2428283436364040404545555858707070707070

75757575

____________________

163199236272

0.260.300.340.410.480.550.620.700.720.770.881.161.441.561.882.082.562.683.774.32

2.903.143.704.20

434448515457606466.5707579869197

102115128142150

____

1213141516171819202122242628303236404448

60728496

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F

2222

All dimensions in mm.Other sizes of Pulleys can be supplied on short delivery.All Pulleys can be supplied finish bored and keywayed.

Parallel bore pulleys can bemachined and fitted with bearings for idler pulleys. When using pulleys as inside idlers it is recommended that number of teeth of idler should be more than that of smaller drive pulley.

Pulley InstallationCorrect and accurate installation of Timing Drives is essential. Pulley alignment and shaft parallelism is very important as misalignment ofthe drive will cause unequal loading across the belt width and edge wear of belt on flanges. Pulley alignment can be checked by placing astraight edge against the outside edge of the pulleys and adjusting so contact made evenly across both pulleys.The shaft should be located within a rigid framework, as any distortion under load could result in a reduction of centre distance which willcause jumping of belt on pulley teeth. If idlers are used they must be locked firmly into position after correct belt tensioning. Refer to page 10 for additional information on drive installation.

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


P14H100P16H100P18H100P19H100P20H100P21H100P22H100P24H100P26H100P28H100P30H100P32H100P36H100P40H100

P44H100P48H100P60H100P72H100P84H100P96H100

P120H100

d MA dp do

L

F

N

L

F

d MA dp do


Type 2Material: Cast Iron

FL

dodp N d M

______________

150170216263312360458

1.401.892.552.903.243.564.004.805.786.547.008.66

10.9213.50

8.069.67

13.3015.7017.1020.4027.80

8686868686868686868686868686

86868686868686

64707982.5879194

102112120128135150168

_______

2830364041434547545454545454

48547070707070

56.6064.6872.7776.8180.8584.8988.9497.02105.11113.19121.28129.36145.53161.70

177.87194.04242.55291.06339.57388.08485.10

______________

24242428282828


2222222

No.Teeth

Z

Other sizes of Pulleys can be supplied on short delivery. All dimensions in mm.All Pulleys can be supplied finish bored and keywayed.

ApproxWeight

kg

RimDiameter

N

Plain Bore Pulleys for‘H’ Series Timing Belts

32

CatalogueNo.

PulleyType

PitchCircle

Dia. dp

Max.Bore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

Min.Bore

d1/2

” Pitch Pulleys for 1” Wide Belts. Ref. H100

56.6064.6872.7776.8180.8584.8988.9497.02105.11113.19121.28129.36145.53161.70

177.87194.04242.55291.06339.57388.08485.10

3232323232323232323232323232

32323232323232

1/2” Pitch Pulleys for 11

/2” Wide Belts. Ref. H150

1416181920212224262830323640

444860728496

120


2F2F22222

1212121414141414141414141414

14141919191919

2730364041434547545454545454

48547070707070

55.263.371.475.479.583.587.695.7

103.7111.8119.9128.0144.2160.3

176.5192.7241.2289.7338.2386.7483.7

64707982.5879194

102112120128135150168

184200_____

4545454545454545454545454545

50505055556060

4045556062656872808080808080

8090

120120120120120

______________

150170216263312360458

0.670.881.151.331.401.501.701.952.432.703.203.504.655.30

3.803.706.258.85

10.0010.4813.30


P44H150P48H150P60H150P72H150P84H150P96H150

P120H150

56.6064.6872.7776.8180.8584.8988.9497.02105.11113.19121.28129.36145.53161.70

177.87194.04242.55291.06339.57388.08485.10

4646464646464646464646464646

46464646464646

1416181920212224262830323640

444860728496

120


2F2F22222

1919191919191919191919191919

19191924242424

2830364041434547545454545454

48547070707070

55.263.371.475.479.583.587.695.7

103.7111.8119.9128.0144.2160.3

176.5192.7241.2289.7338.2386.7483.7

64707982.5879194

102112120128135150168

184200_____

5858585858585858585858585858

58656565656565

______________

150170216263312360458

0.951.081.451.551.702.202.262.693.203.394.104.776.027.50

5.005.087.708.70

10.6413.4015.70

4245556062656872808080808080

8090120120120120120

1/2” Pitch Pulleys for 2” Wide Belts. Ref. H200


P44H200P48H200P60H200P72H200P84H200P96H200

P120H200

56.6064.6872.7776.8180.8584.8988.9497.02105.11113.19121.28129.36145.53161.70

177.87194.04242.55291.06339.57388.08485.10

5959595959595959595959595959

59595959595959

1416181920212224262830323640

444860728496

120


2F2F22222

2830364041434547545454545454

48547070707070

55.263.371.475.479.583.587.695.7

103.7111.8119.9128.0144.2160.3

176.5192.7241.2289.7338.2386.7483.7

64707982.5879194

102112120128135150168

184200_____

7070707070707070707070707070

70757575757575

______________

150170216263312360458

1.101.341.801.902.112.232.452.973.954.605.005.937.539.11

5.006.379.27

10.3211.7013.7018.10

4245556062656872808080808080

8090120120120120120

______________

19242428282828

1/2” Pitch Pulleys for 3” Wide Belts. Ref. H300


P44H300P48H300P60H300P72H300P84H300P96H300

P120H300

1416181920212224262830323640

444860728496

120

55.263.371.475.479.583.587.695.7

103.7111.8119.9128.0144.2160.3

176.5192.7241.2289.7338.2386.7483.7

100100100100100100100100100100100100100100

100100100100100100100

4245556062656872808080808080

8090120120120120120

Pulley TypesThe pulley types referred to intables are as drawings below.The suffix ‘F’ indicates pulley has flanges.

Pulleys below dividing line in tables are in Cast iron, and ofspoked design. Std. Pulleys can be reworked tocustomers bore and keyway.

Type 2FMaterial: Cast Iron

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


L

A N do dp

F

F

dp do M N

L

dp do

F/L

A

Pulley TypesPulley types referred to in tables are as drawings below. The suffix ‘F’ indicates pulley has flanges. Pulleys below dividing line in tables are manufactured in cast iron. Types 7, 10 & 12 when in cast iron have lightening holes.

Pulley InstallationCorrect and accurate installation of Timing Drives is essential. Pulley alignment and shaft parallelism is very important as misalignment ofthe drive will cause unequal loading across the belt width and edge wear of belt on flanges. Pulley alignment can be checked by placing astraight edge against the outside edge of the pulleys and adjusting so contact made evenly across both pulleys.The shaft should be located within a rigid framework, as any distortion under load could result in a reduction of centre distance which willcause jumping of belt on pulley teeth. If idlers are used they must be locked firmly into position after correct belt tensioning. Refer to page 10 for additional information on drive installation.

18L05019L05020L05021L05022L05023L05024L05025L05026L05027L05028L05030L05032L05036L05040L05048L05060L050

72L05084L05096L050

120L050

1919191919191919191919191919191919

19191919

4545484851545456606265707485978892

9292

106106

_________________

120166

202236270343

CatalogueNo.

33

Taper Bore Pulleys for‘L’ Series Timing Belts

No.Teeth

Z

PulleyType

PitchCircle

Diameterdp

TaperBushSize

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

RimDiameter

N


Approx.Weight

kg

1819202122232425262728303236404860

728496

120


11F7

7777

54.5757.6160.6463.6766.7069.7372.7775.8078.8381.8684.8990.9697.02

109.15121.28145.53181.91

218.30254.68291.06363.83

2828282828282828282828282828424242

42425050

53.856.859.962.965.969.072.075.078.181.184.190.296.3

108.4120.5144.8181.2

217.5253.9290.3363.1

606466.57075797982.586869197

102115128150_

____

2222222222222222222222222222252525

25253232

0.170.200.230.300.360.410.450.500.550.610.680.820.981.381.751.762.18

2.403.094.205.22


11081108110811081108110811081108110811081108110811081108161016101610

1610161020122012


72L07584L07596L075

120L075

2525252525252525252525252525252525

25252525

________________

120166

202236270343

1819202122232425262728303236404860

728496

120


10F10

10777

54.5757.6160.6463.6766.7069.7372.7775.8078.8381.8684.8990.9697.02

109.15121.28145.53181.91

218.30254.68291.06363.83

2828282828282828282828282842424242

42505050

53.856.859.962.965.969.072.075.078.181.184.190.296.3

108.4120.5144.8181.2

217.5253.9290.3363.1

606466.57075797982.586869197

102115128150_

____

0.240.280.330.380.450.520.580.640.710.790.861.041.211.411.862.002.58

2.673.955.106.20

11081108110811081108110811081108110811081108110811081610161016101610

1610201020122012

2525252525252525252525252525252525

25323232

________________

9292

92106106106

3/8” Pitch Pulleys for 1” wide Belts. Ref. L100


72L10084L10096L100

120L100

3131313131323232323232323232323232

32323232

383845454852525460606571758696

120166

202236270343

1819202122232425262728303236404860

728496

120


14F12

10101010

54.5757.6160.6463.6766.7069.7372.7775.8078.8381.8684.8990.9697.02

109.15121.28145.53181.91

218.30254.68291.06363.83

2828282828282828282828323242424242

50505050

53.856.859.962.965.969.072.075.078.181.184.190.296.3

108.4120.5144.8181.2

217.5253.9290.3363.1

606466.57075797982.586869197

102115128150_

____

0.250.310.360.410.470.530.600.670.730.800.870.981.181.421.902.302.95

3.604.405.907.35

11081108110811081108110811081108110811081108121012101610161016101610

2012201220122012

________________

9292

106106106106

2222222222222222222222252525252525

32323232

All dimensions in mm. For Taper Bush dimensions refer page 23.

dp do M A

FL

Type 9F

Type 8F

Type 7

Type 5F

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


Taper Bore Pulleys for‘H’ Series Timing Belts

16H10018H10019H10020H10021H10022H10023H10024H10025H10026H10027H10028H10030H10032H10036H10040H10044H10048H100

60H10072H10084H10096H100

120H100

161819202122232425262728303236404448

60728496

120

64.6872.7776.8180.5584.8988.9492.9897.02

101.06105.11109.15113.19121.28129.36145.53161.70177.87194.04

242.55291.06339.57388.08485.10


17F17F17F10F10F

12121277

CatalogueNo.

No.Teeth

Z

PulleyType

PitchCircle

Diameterdp

TaperBushSize

MaxBore

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

RimDiameter

N

1/2” Pitch Pulleys for 1” wide Belts. Ref. H100

Approx.Weight

kg

64.6872.7776.8180.5584.8988.9492.9897.02

101.06105.11109.15113.19121.28129.36145.53161.70177.87194.04

242.55291.06339.57388.08485.10

110812101210121012101210161016101610161016101610161016101610161020122012

20122012201225172517

283232323232424242424242424242425050

5050506060

63.371.474.479.583.587.691.695.799.7

103.7107.8111.8119.9128.0144.2160.3176.5192.7

241.2289.7338.2386.7483.7

707982.587919497

102106112115120128135150168184200

_____

313131313232323232323232323232323232

3434343434

222525252525252525252525252525253232

3232324545

_____________

809292

106106

106106106119119

4552566064677073.577828590.598

106121138152169

223270318366462

0.420.480.580.680.790.900.961.001.121.261.401.541.851.682.252.593.564.10

3.884.456.157.84

10.051/2

” Pitch Pulleys for 11/2” wide Belts. Ref. H150

18H15019H15020H15021H15022H15023H15024H15025H15026H15027H15028H15030H15032H15036H15040H15044H15048H150

60H15072H15084H15096H150

120H150

1819202122232425262728303236404448

60728496

120

5F5F5F5F5F5F5F5F5F5F5F5F

17F17F17F17F17F

1212121212

72.7776.8180.5584.8988.9492.9897.02

101.06105.11109.15113.19121.28129.36145.53161.70177.87194.04

242.55291.06339.57388.08485.10

12101210121012101210161016101610161016101610161016101610161020122012

20122012201225172517

3232323232424242424242424242425050

5050506060

71.474.479.583.587.691.695.799.7

103.7107.8111.8119.9128.0144.2160.3176.5192.7

241.2289.7338.2386.7483.7

7982.587919497

102106112115120128135150168184200

_____

4545454545454545454545454545454545

4646464646

2525252525252525252525252525253232

3232324545

____________

809292

106106

106106106119119

52566064677073.577828590.598

106121138152169

223270320366462

0.660.780.880.991.131.121.251.401.541.701.842.172.212.793.264.204.72

4.585.466.739.00

12.201/2

” Pitch Pulleys for 2” wide Belts. Ref. H200

18H20019H20020H20021H20022H20023H20024H20025H20026H20027H20028H20030H20032H20036H20040H20044H20048H200

60H20072H20084H20096H200

120H200

1819202122232425262728303236404448

60728496

120


17F17F17F17F

1212121212

72.7776.8180.5584.8988.9492.9897.02

101.06105.11109.15113.19121.28129.36145.53161.70177.87194.04

242.55291.06339.57388.08485.10

12101210161016101610161016101610161016101610161020122012201220122517

25172517251725172517

3232424242424242424242425050505060

6060606060

71.474.479.583.587.691.695.799.7

103.7107.8111.8119.9128.0144.2160.3176.5192.7

241.2289.7338.2386.7483.7

7982.587919497

102106112115120128135150168184200

_____

5858585858585858585858585858585858

6060606060

2525252525252525252525253232323245

4545454545

_____________

102106106119

119119119119119

52566264677073.577828590.598

106121138152168

223270320366462

0.820.920.921.041.201.361.521.681.822.022.142.502.923.524.104.906.25

5.826.808.269.90

13.001/2

” Pitch Pulleys for 3” wide Belts. Ref. H300

20H30021H30022H30023H30024H30025H30026H30027H30028H30030H30032H30036H30040H30048H300

60H30072H30084H30096H300

120H300

2021222324252627283032364048

60728496

120

13F13F13F13F13F13F13F13F13F13F13F13F13F12F

1212121212

80.5584.8988.9492.9897.02

101.06105.11109.15113.19121.28129.36145.53161.70194.04

242.55291.06339.57388.08485.10

16151615161516151615161516152012201220122517251725172517

25172517251730303030

4242424242424250505060606060

6060607575

79.583.587.691.695.799.7

103.7107.8111.8119.9128.0144.2160.3192.7

241.2289.7338.2386.7483.7

87919497

102106112115120128135150168200_____

8484848484848484848484848486

8686868686

3838383838383832323245454545

4545457676

____________

119119

119119119150150

64.565677073.577828590.598

106121138165

223270320362460

1.191.501.762.002.252.492.692.502.653.153.524.946.407.10

7.459.92

11.5713.4016.50

34All dimensions in mm. For details of Taper Bushes refer to page 23

Types 10/10F

Type 11F

Type 17F

Type 12/12F

dp doF/L

A M N

Type 13F

dp do

F

A M N

L

dp do

F

A M N

L

dp do

F

N

L

A

dp do

F

M

L

NA

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The ‘AT’ series of Polyurethane belts have increased tooth widthand higher strength tension members than the ‘T’ Series.The increased tooth size with resultant increased stiffness improvesmeshing with pulley teeth and enables transmission of higher powers. Increased strength tension members improve pitch accuracy and also increase power capacity. Both improvementsresult in an increase of power transmission capacity of approx 50%.Quieter operation, as a result of improved tooth meshing, andreduced polygonal effect plus ability to use narrower section belts,is combined with improved positional accuracy of power transmission, with linear accuracy better than ± 0.1mm/Metre beltlength.

Polyurethane belts are suitable for drives in a wide variety ofmachinery including Office machinery, Machine Tools, Pumps,Textile Machinery, Printing Machinery, Paper manufacturers, downto precision Camera drives and servo mechanisms.

AT10

T10

AT5

T5

T2.5

35

Polyurethane Timing Belts

Polyurethane Timing Belts are offered in three standard metric pitches, 2.5mm, 5mm, and 10mm, and also standardimperial pitch, 1/5” (XL). Belts can also be supplied in 2mm and 20mm pitch, 0.08” (MXL) and 3/8” (XL) pitch to order. In addition to the standard single sided belts, double sided beltswith moulded teeth on both sides of the belt can be supplied(T5 and T10 only) for multishaft, serpentine drives and some conveyor applications.The metric belts are offered in twodesigns ‘T’ and ‘AT’ series both using steel tension cordsencased in the polyurethane jacket with integral drive teeth.The method of manufacture ensures close control of pitchlength, which combined with the inelastic properties of thesteel tension member create a belt drive with high positionalaccuracy resulting in these belts being popular for instrumentdrives, robotics, and servo mechanisms. The imperial pitchbelts use Kevlar tension members for increased strength andflexibility making them suited to higher power applications.The metric series belts can be also supplied with Kevlar tension member if required. Polyurethane has excellent resistance to mineral oils, greases and many slight acidic solutions, it is basically non marking and resistant to crumbling making it suitable for food and cigarette processingmachines, and for paper handling in office equipment.Polyurethane belts can be used on applications with environmental temperature range -30°C, to 80°C, with belt speed up to 80 m/sec. In addition to the standard belt listed on page 37, open ended belt can be supplied for most constructions and widths, and fitted with welded attachmentsfor conveying applications and positional rack drives, refer topage 43 for further details. The low inertia of the belts and aluminium pulleys plus accurate pitching make both the endless and open ended belt ideal for the high accelerationrates encountered in robotics.The high flexibility of thepolyurethane belt enables crossed drives to be achieved (shaftsat right angles), where reasonable length centres exist and narrow width belts are used. Both high shaft speeds andpower capabilities can be achieved with the ‘T’ and ‘AT’ seriesof belts. The T2.5, T5, and AT5 belts are all able to run at up to40,000 r.p.m with AT5 belts transmitting 15kW. The T10 andAT10 belts, can operate to 15,000 r.p.m with power capacity to70kW, and higher powers of up to 200kW can be achieved with20mm pitch AT 20 belts available to special order.

1010 100 10000.01

1.0

10

100

Standard Belt Power Ratings

PO

WE

R R

ATI

NG

kW

10,000

SHAFT SPEED r.p.m.

0.1

AT Series Polyurethane Timing Belts

Belt SizeWidth x Pitch

Max. AllowableBelt Tension N.

Min. No. TeethDrive Pulley

Min dia of Idler Pulley mm

6T2.510T516T525T5

16T1025T1032T1050T1010AT516AT5 25AT5

25AT1032AT1050AT10

65330570930

1100180023003800

490840

1100350047507750

1010101012121212151515151515

1530303060606060606060

120120120

Design limits for standard Polyurethane Timing Belts.

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The most important factor considered when selecting a Polyurethane“T” or “AT” series belt is the tooth shear strength. The calculation ofPower capacity is based on the specific shear strength of each tooth inmesh relative to the belt width in cms. The maximum tooth shearstrength Fs must not be exceeded. Values for tooth shear strength areshown in the table at foot of the page. The ‘AT’ series belts offer ahigher tooth strength due to the larger tooth cross section. The highpitch accuracy of Polyurethane belts allows for up to 12 teeth to sharethe drive loads. Other factors which should be considered in beltselection are the number of teeth on the small pulley and diameters oftensioners/idlers pulleys. The drive design should also ensure that themaximum working load does not exceed maximum allowable tensionof the members Fm.

In order to make a selection it is first necessary to compile together the following relevant design parameters

a) Power to be transmitted P. kWb) Speed of fastest shaft N1 r.p.m.c) Drive ratio required, i - reduction or speed increase.d) Maximum pulley diameters which can be accommodated.e) Type of driver and driven equipment.f ) Shaft diameters and centre distance A

Selection of Belt Pitch and Width.

1) The size of Belt selected must always ensure maximum toothshear and tensile strengths are not exceeded, and that pulley sizes meet their criteria. Under start-up conditions normal running torques can be exceeded by 2-2.5 times with electric motors, and this must be allowed for in the calculation.Peak loads caused by oscillating and torsional loads can be up to1.7 times mean torque loads, and design factor f1* should consider this. Emergency braking systems may impose the maximum torque in the application.Speed increase drives impose heavier shock conditions, and afactor needs to be applied to cover these as below :-i = 1 to 1.5 f2 = 1.1i = 1.5 to 2.5 f2 = 1.2i = 2.5 + f2 = 1.3

* Values for f1 can be found on page 4 , Table 1.

The total design factor fd = f1 + f2 or start-up overload factor fswhich ever is highest

The design Power Pd = P x fd or fs

Using graph on page opposite select suitable belt size to transmit thedesign power at the shaft speed N1 r.p.m.

2. Select number of teeth in pulleys, by consideration of therestraints of maximum pulley diameter and shaft diameters.The minimum pulley pitch diameter should be at least twice shaft diameter. The minimum number of teeth on the pulleys is also constrained by the belt design, reference belt characteristics table opposite page.The actual pulley diameters can be obtained by referring to pulley dimension tables on pages 38 to 42 or by using formula.

Pitch dia pulley dp = Z.p mm#

The number of teeth in small and large pulleys can be determined from the drive reduction ratio i.

i = Z2

Z1

3) Determine the number of teeth in mesh on small pulley Zm

from formula

Zm = Z1 2# #

4) Determine belt tension from drive Power Pd or drive torque Md

FT = 1000.PdZ1.N1.p

or FT = 2000 Tddp

5) Determine belt width by consideration of belt tooth shear strength

belt width b = FTFs. Zm.

Polyurethane Belt DrivesSelection Procedure

36

Terms and Definitions :-A = centre distance pulley shafts mmb = belt width cmd = bore of pulley mmdp = pitch diameter of pulley mmfd = design factor fs = starting overload factor Fm = max. working tension in belt NFs = tooth shear resistance (see table below) N/cmFT = total linear force on belt Ni = drive ratio L = belt Length mmN1 = shaft speed - high speed shaft r.p.m.N2 = shaft speed - low speed shaft r.p.m.P = motor power k.w Pd = design power k.wP = belt pitch mmZ1 = no teeth on small pulley Z2 = no teeth on large pulleyZm = no teeth in mesh in small pulley

Pulley SpeedN r.p.m T2.5

(

( _ Sin 1[ Z2 _ Z1

#. A

[

from power input

from torque input

cm

T5 T10 AT5 AT10

Value for Teeth Shear Resistance Fs N/cm

020406080

100200300400500600700800900

100011001200130014001500160017001800190020002200240026002800300032003400360038004000450050005500600065007000750080009000

1000012000150001800020000

9.038.728.488.288.107.957.397.016.716.486.286.115.975.835.715.615.515.415.335.255.175.105.044.974.914.804.704.604.514.434.364.284.224.154.093.953.823.703.603.513.423.333.263.112.992.772.502.282.15

24.0023.3822.8622.4122.0121.6520.2819.3018.5517.9317.4116.9616.5616.2015.8815.5815.3115.0614.8314.6114.4014.2114.0313.8513.6913.3813.1012.8412.5912.3712.1611.9611.7711.5911.4211.0310.6810.3610.07

9.819.569.339.118.728.37____

50.5049.0047.7046.6045.7044.8041.4039.1037.2035.7034.4033.3032.4031.5030.7030.0029.3028.7028.2027.6027.1026.7026.2025.8025.4024.6023.9023.3022.7022.2021.7021.2020.7020.3019.8618.9118.0617.2816.5815.9315.3314.7614.2413.2812.42_

___

35.334.934.534.133.833.532.030.929.829.028.227.526.826.325.725.224.824.323.923.523.222.822.522.221.921.320.820.319.819.419.018.618.317.917.616.916.215.615.014.514.013.513.112.311.6____

35.334.934.534.133.833.532.030.929.829.028.227.526.826.325.725.224.824.323.923.523.222.822.522.221.921.320.820.319.819.419.018.618.317.917.616.916.215.615.014.514.013.513.112.311.6____

73.572.471.470.569.668.765.062.159.557.455.553.752.250.849.548.347.246.245.244.343.442.641.841.040.339.037.836.635.534.533.632.731.931.130.328.526.925.524.223.021.820.819.817.916.3____

Select the next largest standard width for belt.If result from below formula for belt width gives impracticalresult rework selection sequence with next sizes of belt to obtain revised width.

6) Final chain belt tension maximum Fm is not exceeded i.e.

Fm ≥ FT

7) To determine belt length refer to paragraph 5 on page 2.

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37

Standard Stock Polyurethane Belts

Standard belts are available in a number of stock widths as indicated below. Formetric belts an individual belt reference number is obtained by prefixing the catalogue reference shown in tables, by its width in mm. For example a 280mmlong belt of T5 construction with 12mm width has reference:

12T5-280belt width - construction - length

For imperial pitch belts, the references are as rubber belts but prefixed ‘U’,e.g. U150XL037. Other pitches, belt lengths and widths can supplied to order,contact Cross+Morse for further information.

Cat. Ref.

T2.5-120T2.5-145T2.5-160T2.5-177T2.5-200T2.5-230T2.5-245T2.5-265T2.5-285T2.5 290T2.5-305T2.5-317T2.5-330T2.2-380T2.5-420T2.5-480T2.5-500T2.5-600T2.5-620T2.5-650T2.5-680T2.5-780T2.5-880T2.5-915T2.5-950

T2.5-1185

2.5mm Pitch Belts - Ref. T2.5

Lengthmm No. Teeth

120145160177.5200230245265285290305317.5330380420480500600620650680780880915950

1185

48586471809298

106114116122127132152168192200240248260272312352366380474

Cat. Ref.

U60-XLU70-XLU80-XLU90-XL

U100-XLU110-XLU120-XLU130-XLU140-XLU150-XLU160-XLU170-XLU180-XLU190-XLU200-XLU210-XLU220-XLU230-XLU240-XLU250-XLU260-XL

1/5” Pitch Belts -Ref. U-XL

Lengthmm No. Teeth

152.4177.8203.2228.6254.0279.4304.8330.2355.6381.0406.4431.8457.2482.6508.0533.4558.8584.2609.6635.0660.4

152.4177.8203.2228.6254.0279.4304.8330.2355.6381.0406.4431.8457.2482.6508.0533.4558.8584.2609.6635.0660.4

3035404550556065707580859095100105110115120125130

Width Ref.

253750

U-XL Belt Widthsand Weights

Belt Width Weightgms/m

6.39.512.7

142128

Open ended and long lengthfabricated belts are also availablerefer to page 43 for further details.

Cat. Ref.

T5-120T5-150T5-185T5-200T5-215T5-225T5-245T5-250T5 255T5-260T5-270T5-280T5-295T5-305T5-330T5-340T5-350T5-355T5-365T5-390T5-400T5-410*T5-420T5-455T5-460*T5-475T5-480T5-500T5-510T5-525T5-545T5-550T5-560T5-575T5-590*T5-610T5-620*T5-630T5-650T5-660T5-690T5-720T5-750*T5-780T5-815*T5-830T5-840T5-860*T5-885T5-900T5-940*T5-990

T5-1075T5-1100*T5-1200T5-1215T5-1275T5-1280T5-1315T5-1355T5-1380T5-1955

5mm Pitch Belts - Ref. T 5

Lengthmm No. Teeth

120150185200215225245250255260270280295305330340350355365390400410420455460475480500510525545550560575590610620630650660690720750780815830840860885900940990

1075110012001215127512801315135513801955

243037404345495051525456596166687071737880828491929596

100102105109110112115118122124126130132138144150156163166168172177180188198215220240243255256263271276391

Cat. Ref.

T10-260*T10-340T10-370T10-400T10-410T10-440T10-480T10-500T10-530*T10-560T10-600T10-610T10-630*T10-660*T10-680T10-690T10-700T10-720*T10-730T10-750T10-780T10-810T10-840*T10-880T10-890T10-900T10-920T10-960T10-970T10-980*T10-1010T10-1080T10-1110T10-1140T10-1150T10-1210*T10-1240*T10-1250T10-1300T10-1320*T10-1350*T10-1390T10-1400T10-1420*T10-1460T10-1500T10-1560T10-1610*T10-1750T10-1780T10-1880*T10-1960T10-2250

10mm Pitch Belts - Ref. T 1 0

Lengthmm No. Teeth

260340370400410440480500530560600610630660680690700720730750780810840880890900920960970980

10101080111011401150121012401250130013201350139014001420146015001560161017501780188019602250

263437404144485053566061636668697072737578818488899092969798

101108111114115121124125130132135139140142146150156161175178188196225

Cat. Ref.

AT5-225AT5-255AT5-280AT5-300AT5-340AT5-375AT5-390AT5-420AT5-450AT5-455AT5-500AT5-545AT5-600AT5-610AT5-660AT5-710AT5-720AT5-750AT5-780AT5-825AT5-860AT5-975

AT5-1050AT5-1125AT5-1500AT5-2000

5mm Pitch Belts - Ref. A T 5

Lengthmm No. Teeth

225255280300340375390420450455500545600610660710720750780825860975

1050112515002000

45515660687578849091

100109120122132142144150156165172195210225300400

Cat. Ref.

AT10-500AT10-560AT10-600AT10-610AT10-660AT10-700AT10-730AT10-780AT10-800AT10-840AT10-890AT10-920AT10-960AT10-980

AT10-1000AT10-1010AT10-1050AT10-1080AT10-1100AT10-1150AT10-1200AT10-1210AT10-1250AT10-1280AT10-1300AT10-1320AT10-1350AT10-1360AT10-1400AT10-1420AT10-1480AT10-1500AT10-1600AT10-1700AT10-1720AT10-1800AT10-1860AT10-1940

10mm Pitch Belts - Ref. AT10

Lengthmm No. Teeth

500560600610660700730780800840890920960980

100010101050108011001150120012101250128013001320135013601400142014801500160017001720180018601940

5056606166707378808489929698

100101105108110115120121125128130132135136140142148150160170172180186194

*These belt sizes are also availablein Double Sided construction suffix ‘DD’ to Cat. No.

489668

126

387754

101

1524483463

6 915

21

Belt Widths and Weights T & AT Series

BeltType

T2.5T5T10AT5AT10

Belt Width mm

4 6 8 10 12 16 20 25 32 50 75

1219

27

1829584176

60120

85158

154

202

240

315

360

473

Figures in Belt Width column for respective type of belt are weightgms/metre length.Unshaded weights are Standard Stock width belts,shaded are to order only.

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Avante Pulleys for MetricPolyurethane T5 and T10 BeltsThe Avante drive system combines the advantages ofShaft Clamping Elements witha standard range of Metric ‘T’Series Pulleys, providing aunique zero backlash connection. Avante T Pulleysoperate with the AvanteClamping Element,details ofwhich can be found on page 19.The system is ideal for positioning drives; and offerscost savings by elimination ofmachining for drive keys andaxial location.

Pulley TypesPulley Types referred to in thetables are as drawings below.Suffix ‘F’ indicates pulley hasflanges. All pulleys are manufactured from Aluminiumfor low weight and inertia

All dimensions in mm.

Pulley InstallationSlacken screws in clamping element by two turns, removing one completely and fit into empty thread release hole tightening this screw so as to keep the inner and outer cones apart. Ensure all contact surfaces are clean, and lightly oiled with clean thin unmodified oil. Insert clamping element in hub and fit on shaft. Remove screwfrom release hole and refit in original hole. Position Pulley and tighten all screws finger tight so pulley can still be moved on shaft. Correct and accurate installation ofTiming Drives is essential. Pulley alignment and shaft parallelism are important to ensure even loading across belt width, and avoid edge wear of belts on flanges. Pulley alignment can be checked by placing a straight edge against the outside edge of the pulleys and adjusting so contact is even across both pulleys. When the pulleys are correctly aligned they can be locked to the shafts by tightening all clamping screws evenly in a diametrically opposite sequence using torque wrench set initially at half catalogue clamping screw torque, then 3/4 value, and finally full torque.

38

ACE81BushRef.*

CatalogueNo.

No.Teeth

Z

PulleyType

PulleyWidth

F

Flange

A

Hub

M

Approx.Weight

kg

A10T5 -22A10T5 -24A10T5 -25A10T5 -26A10T5 -27A10T5 -28A10T5 -30A10T5 -32A10T5 -36A10T5 -40A10T5 -42A10T5 -44A10T5 -48A10T5 -60

4F4F4F4F4F4F4F4F4F4F4F444

Bush bore sizesminmm

maxmm

5mm Pitch Pulleys for 10mm Wide Belt Ref. 10T5

PulleyBore

db

PitchCircle

dp

Outside

do

BoreLength

L

2224252627283032364042444860

-x26-x26-x26-x26-x26-x26-x26-x26-x38-x38-x38-x38-x38-x38

1111111111111111191919191919

2020202020202020303030303030

35.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8570.0376.3995.49

34.237.438.940.542.143.746.950.156.562.866.069.275.694.7

38.043.044.044.048.048.051.056.063.066.570.0

1515151515151515151515151515

1515151515151515151515151515

2626262626262626383838383838

0.0220.0300.0340.0390.0430.0480.0580.0680.0660.0920.1050.0980.1260.227




2224252627283032364042444860

-x26-x26-x26-x26-x26-x26-x26-x26-x38-x38-x38-x38-x38-x38

1111111111111111191919191919

2020202020202020303030303030

35.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8570.0376.3995.49

34.237.438.940.542.143.746.950.156.562.866.069.275.694.7

38.043.044.044.048.048.051.056.063.066.570.0

2121212121212121212121212121

2626262626262626383838383838

0.0270.0380.0430.0490.0550.0610.0750.0890.0860.1200.1390.1370.1770.318

2121212121212121212121212121




2224252627283032364042444860

-x26-x26-x26-x26-x26-x26-x26-x26-x38-x38-x38-x38-x38-x38

1111111111111111191919191919

2020202020202020303030303030

35.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8570.0376.3995.49

34.237.438.940.542.143.746.950.156.562.866.069.275.694.7

38.043.044.044.048.048.051.056.063.066.570.0

3030303030303030303030303030

2626262626262626383838383838

0.0340.0490.0560.0640.0730.0820.1000.1200.1150.1630.1900.1950.2520.454

3030303030303030303030303030

A16T10 -12A16T10 -14A16T10 -15A16T10 -16A16T10 -18A16T10 -19A16T10 -20A16T10 -22A16T10 -24A16T10 -25A16T10 -26A16T10 -27A16T10 -28A16T10 -30A16T10 -32A16T10 -36A16T10 -40A16T10 -44A16T10 -48A16T10 -60


1214151618192022242526272830323640444860

-x26-x26-x26-x26-x38-x38-x38-x38-x38-x38-x38-x38-x38-x38-x38-x38-x38-x52-x52-x52

1111111119191919191919191919191919242424

38.2044.5647.7550.9357.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

43.048.051.056.060.066.566.575.083.083.087.091.093.097.0

106.0119.0131.0

2121212121212121212121212121212121212121

2626262638383838383838383838383838525252

0.030.060.070.080.080.100.110.150.190.220.240.260.290.340.400.520.650.861.051.70


2020202030303030303030303030303030424242

36.342.745.949.155.458.661.868.274.577.780.984.187.393.6

100.0112.7125.5138.2150.9189.1

2121212121212121212121212121212121313131

8895

110


A25T10 -12A25T10 -14A25T10 -15A25T10 -16A25T10 -18A25T10 -19A25T10 -20A25T10 -22A25T10 -24A25T10 -25A25T10 -26A25T10 -27A25T10 -28A25T10 -30A25T10 -32A25T10 -36A25T10 -40A25T10 -44A25T10 -48A25T10 -60


1214151618192022242526272830323640444860

-x26-x26-x26-x26-x38H-x38H-x38H-x38H-x52-x52-x52-x52-x52-x52-x52-x52-x52-x52-x52-x52

1111111119191919242424242424242424242424

43.048.051.056.060.066.566.575.083.083.087.091.093.097.0

106.0119.0131.0

3030303030303030303030303030303030303030

2626262638383838525252525252525252525252

0.040.080.090.110.110.130.160.210.190.220.250.280.320.390.470.640.841.051.292.12

2020202030303030424242424242424242424242

36.342.745.949.155.458.661.868.274.577.780.984.187.393.6

100.0112.7125.5138.2150.9189.1

38.2044.5647.7550.9357.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

3030303030303030303030303030303030303030

*Refer to Page 19 for Bush details

Type 1

Type 4/4F

A dp do

F

dbd Mdp do

F

L

______________

______________

______________

______________

_________________

____________________

___

___

___

___

___

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


Approx.Weight

kgCatalogue

No.

39

Pulleys for Metric PolyurethaneT2.5 and T5 Belts

Pulley TypesThe Pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Std. Pulleys can be reworked tocustomers bore and keywayingrequirement.

No.Teeth

ZPulleyType

PitchCircle

Diameterdp

Min.Bore

d

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

2.5mm Pitch Pulleys for 6mm Wide Belt Ref. 6T2.5-

6 T2.5-126 T2.5-146 T2.5-156 T2.5-166 T2.5-186 T2.5-196 T2.5-206 T2.5-226 T2.5-246 T2.5-256 T2.5-266 T2.5-286 T2.5-306 T2.5-326 T2.5-366 T2.5-406 T2.5-446 T2.5-486 T2.5-60

12141516181920222425262830323640444860

0F0F0F0F1F1F1F1F1F1F1F1F1F1F1F1F111

9.5511.1411.9412.7314.3215.1215.9217.5119.1019.8920.6922.2823.8725.4628.6531.8335.0138.2047.75

________

44446666668

45676.56.57788.599

10101314151722

16161616161616161616161616161616161616

13.015.015.016.017.520.020.022.022.025.026.026.028.032.036.038.0_

__

9.010.611.412.213.814.615.417.018.519.320.121.723.324.928.131.334.537.747.2

9999

101010101010101010101010101010

12141516101011111213141416162022242634

.003

.004

.005

.005

.006

.007

.008

.010

.012

.013

.014

.016

.018

.020

.026

.032

.040

.048

.073

5mm Pitch Pulleys for 10mm Wide Belt Ref. 10T5-10 T5-10 10 T5-1210 T5-1410 T5-1510 T5-1610 T5-1810 T5-1910 T5-2010 T5-2210 T5-2410 T5-2510 T5-2610 T5-2710 T5-2810 T5-3010 T5-3210 T5-3610 T5-4010 T5-4210 T5-4410 T5-4810 T5-60

10121415161819202224252627283032364042444860

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F111

15.9219.1022.2823.8725.4628.6530.2431.8335.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8470.0376.3995.49

___

6666666668888888888

579

10111314151517171719202224242626293242

15.018.221.423.024.627.829.431.034.137.438.940.642.243.746.950.156.462.866.069.275.594.6

19.523.025.028.032.032.036.036.038.042.044.044.048.048.051.054.064.066.570.0_

__

15151515151515151515151515151515151515151515

21212121212121212121212121212121212121212121

8111416182022232426262630323438384040455065

.012

.016

.019

.021

.025

.031

.036

.038

.046

.054

.058

.062

.064

.071

.075

.088

.114

.138

.153

.170

.200

.308

5mm Pitch Pulleys for 16mm Wide Belt Ref. 16T5-

16 T5-10 16 T5-1216 T5-1416 T5-1516 T5-1616 T5-1816 T5-1916 T5-2016 T5-2216 T5-2416 T5-2516 T5-2616 T5-2716 T5-2816 T5-3016 T5-3216 T5-3616 T5-4016 T5-4216 T5-4416 T5-4816 T5-60

10121415161819202224252627283032364042444860


15.9219.1022.2823.8725.4628.6530.2431.8335.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8470.0376.3995.49

___

6666666668888888888

579

10111314151517171719202224242626293242

15.018.221.423.024.627.829.431.034.137.438.940.642.243.746.950.156.462.866.069.275.594.6

19.523.025.028.032.032.036.036.038.042.044.044.048.048.051.054.064.066.570.0_

__

27272727272727272727272727272727272727272727

8111416182022232426262630323438384040455065

.016

.022

.027

.030

.036

.044

.050

.054

.055

.077

.082

.086

.092

.094

.106

.124

.160

.195

.206

.230

.282

.432

21212121212121212121212121212121212121212121


25 T5-10 25 T5-1225 T5-1425 T5-1525 T5-1625 T5-1825 T5-1925 T5-2025 T5-2225 T5-2425 T5-2525 T5-2625 T5-2725 T5-2825 T5-3025 T5-3225 T5-3625 T5-4025 T5-4225 T5-4425 T5-4825 T5-60

10121415161819202224252627283032364042444860


15.9219.1022.2823.8725.4628.6530.2431.8335.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8470.0376.3995.49

___

6666668888888888888

579

10111314151517171719202224242626293242

15.018.221.423.024.627.829.431.034.137.438.940.642.243.746.950.156.462.866.069.275.594.6

19.523.025.028.032.032.036.036.038.042.044.044.048.048.051.054.064.066.570.0_

__

36363636363636363636363636363636363636363636

8111416182022232426262630323438384040455065

.025

.032

.038

.042

.052

.063

.072

.078

.082

.110

.117

.121

.123

.127

.152

.177

.232

.278

.296

.327

.402

.617

30303030303030303030303030303030303030303030

All pulleys machined fromaluminium for low weight andinertia, and fitted as indicatedwith steel flanges.All dimensions in mm

Type 0F

dp do

F

d MA

L

Type 1

d Mdp do

F

L

L

F

d MA dp do

Type 1F

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


Pulleys for Metric PolyurethaneT10 Belts

40

CatalogueNo.

No.Teeth

Z

PulleyType

Pitch CircleDia.dp


Pulley TypesThe Pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Std. Pulleys can be reworked to customers bore and keywaying requirements.

Min.Bore

d

Max.Bore

d

Ouside Diameter

do

FlangeDia.

A

PulleyWidth

F

BoreLength

L

HubDia.M

Approx.Weight

kg


16 T10-1216 T10-1416 T10-1516 T10-1616 T10-1816 T10-1916 T10-2016 T10-2216 T10-2416 T10-2516 T10-2616 T10-2716 T10-2816 T10-3016 T10-3216 T10-3616 T10-4016 T10-4416 T10-4816 T10-60

1214151618192022242526272830323640444860


38.2044.5647.7550.9357.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

68888888888888

101010101616

4248515460666675838387919397

106119131_

__

2121212121212121212121212121212121212121

1821212326283034383939393939424552576272

36.342.745.949.155.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

3131313131313131313131313131313131313131

28323235404446525860606060606570808895

110

0.080.110.120.140.170.190.210.260.290.310.360.370.400.440.490.630.771.001.091.70



25 T10-1225 T10-1425 T10-1525 T10-1625 T10-1825 T10-1925 T10-2025 T10-2225 T10-2425 T10-2525 T10-2625 T10-2725 T10-2825 T10-3025 T10-3225 T10-3625 T10-4025 T10-4425 T10-4825 T10-60

1214151618192022242526272830323640444860


38.2044.5647.7550.9357.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

68888888888888

101010101616

4248515460666675838387919397

106119131_

__

3030303030303030303030303030303030303030

1821212326283034383939393939424552576272

36.342.745.949.155.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

28323235404446525860606060606570808895

110

0.100.140.160.180.230.250.280.340.390.420.480.540.550.640.690.871.071.351.522.34

4040404040404040404040404040404040404040


32 T10-1832 T10-1932 T10-2032 T10-2232 T10-2432 T10-2532 T10-2632 T10-2732 T10-2832 T10-3032 T10-3232 T10-3632 T10-4032 T10-4432 T10-4832 T10-60

18192022242526272830323640444860

1F1F1F1F1F1F1F1F1F1F1F1F1F111

57.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

60666675838387919397

106119131_

__

55.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

47474747474747474747474747474747

10101212121212121212121616161616

26283034383939393939424552576272

37373737373737373737373737373737

404446525860606060606570808895

110

0.260.280.320.400.480.530.570.600.640.740.851.071.321.611.933.00



50 T10-1850 T10-1950 T10-2050 T10-2250 T10-2450 T10-2550 T10-2650 T10-2750 T10-2850 T10-3050 T10-3250 T10-3650 T10-4050 T10-4450 T10-4850 T10-60

18192022242526272830323640444860


57.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

60666675838387919397

106119131_

__

55.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

10101212121212121212121616161616

26283034383939393939424552576272

56565656565656565656565656565656

404446525860606060606570808895

110

0.430.470.520.570.740.770.820.910.961.171.301.642.002.362.834.37

66666666666666666666666666666666

Pulley InstallationCorrect and accurate installation of Timing Drives is essential. Pulley alignment and shaft parallelism is very important as misalignment ofthe drive will cause unequal loading across the belt width and edge wear of belt on flanges. Pulley alignment can be checked by placing astraight edge against the outside edge of the pulleys and adjusting so contact made evenly across both pulleys.The shafts should be located within a rigid framework, as any distortion under load could result in a reduction of centre distance whichwill cause jumping of belt on pulley teeth. If idlers are used they must be locked firmly into position after correct belt tensioning. Refer to page 10 for additional information on drive installation.

Type 1

d Mdp do

F

L

L

F

d MA dp do

Type 1F

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


Type 1

d Mdp do

F

L

L

F

d MA dp doType 1F

Approx.Weight

kgCatalogue

No.

41

Pulleys for Metric PolyurethaneAT 5 Belts

Pulley TypesThe Pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Std. Pulleys can be reworked tocustomers bore and keywayingrequirement.

No.Teeth

ZPulleyType

PitchCircle

Diameterdp

Min.Bore

d

MaxBore

d

OutsideDiameter

do

FlangeDiameter

A

PulleyWidth

F

BoreLength

L

HubDiameter

M

5mm Pitch Pulleys for 10mm Wide Belt Ref. 10AT 5

10AT5-1210AT5-1410AT5-1510AT5-1610AT5-1810AT5-1910AT5-2010AT5-2210AT5-2410AT5-2510AT5-2610AT5-2710AT5-2810AT5-3010AT5-3210AT5-3610AT5-4010AT5-4210AT5-4410AT5-4810AT5-60

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F111

__

6666666668888888888

23.025.028.032.032.036.036.038.042.044.044.048.048.051.054.064.066.570.0_

__


AT Series Timing PulleysDesigned to complete the power Transmission package for theenhanced power ‘AT’ series belts, are the Cross pilot bore stockpulleys for AT5 and AT10 belt drives. The ‘AT’ series belts provide increased power capacity in aPolyurethane belt by increasing the belt tooth size and also thetension members.The increased tooth width of AT series belts increases both thestrength and stiffness of the tooth improving meshing with thepulley’s also the longer flat surface of the teeth enables bettertransmission of radial loads.

Higher strength tension members improve pitch accuracyalong with increasing the tensile strength of the belt, whichcombined with the stronger teeth enables increase in powertransmitted by approx 50% over the ‘T’ series belts.The ‘AT’ belt design provides improved accuracy in linear drives, with reduced backlash when using standard pulleys.The longer tooth reduces polygon effect which combined withthe opportunity to reduce belt width enables reduction innoise levels.Cross offer AT5 and AT10 pulleys as standard, but can alsomanufacture to customers design including AT20.

121415161819202224252627283032364042444860

19.1022.2823.8725.4628.6530.2431.8335.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8470.0376.3995.49

79

10111314151517171719202224242626293242

18.221.423.024.627.829.431.034.137.438.940.642.243.746.950.156.462.866.069.275.594.6

151515151515151515151515151515151515151515

212121212121212121212121212121212121212121

111416182022232426262630323438384040455065

.016

.019

.021

.025

.031

.036

.038

.046

.054

.058

.062

.064

.071

.075

.088

.114

.138

.153

.170

.200

.308




__

6666666668888888888

23.025.028.032.032.036.036.038.042.044.044.048.048.051.054.064.066.570.0_

__

121415161819202224252627283032364042444860

19.1022.2823.8725.4628.6530.2431.8335.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8470.0376.3995.49

79

10111314151517171719202224242626293242

18.221.423.024.627.829.431.034.137.438.940.642.243.746.950.156.462.866.069.275.594.6

272727272727272727272727272727272727272727

111416182022232426262630323438384040455065

.022

.027

.030

.036

.044

.050

.054

.055

.077

.082

.086

.092

.094

.106

.124

.160

.195

.206

.230

.282

.432

212121212121212121212121212121212121212121




__

6666668888888888888

23.025.028.032.032.036.036.038.042.044.044.048.048.051.054.064.066.570.0_

__

121415161819202224252627283032364042444860

19.1022.2823.8725.4628.6530.2431.8335.0138.2039.7941.3842.9744.5647.7550.9357.3063.6666.8470.0376.3995.49

79

10111314151517171719202224242626293242

18.221.423.024.627.829.431.034.137.438.940.642.243.746.950.156.462.866.069.275.594.6

363636363636363636363636363636363636363636

111416182022232426262630323438384040455065

.032

.038

.042

.052

.063

.072

.078

.082

.110

.117

.121

.123

.127

.152

.177

.232

.278

.296

.327

.402

.617

303030303030303030303030303030303030303030

CROSS+MORSE



Te

l +

44

1

21

3

60

0

15

5 F

ax

+

44

1

21

3

25

1

07

9 E

ma

il s

ale

s@

cr

os

sm

or

se

.c

om


Pulleys for Metric PolyurethaneAT10 Belts

42

CatalogueNo.

No.Teeth

Z

PulleyType

Pitch CircleDia.dp


Pulley TypesThe Pulley types referred to in tables are as drawings below. Suffix ‘F’ indicates pulley has flanges. Std. Pulleys can be reworked to customers bore and keywaying requirements.

Min.Bore

d

Max.Bore

d

Ouside Diameter

do

FlangeDia.

A

PulleyWidth

F

BoreLength

L

HubDia.M

Approx.Weight

kg


16 AT10-1516 AT10-1616 AT10-1816 AT10-1916 AT10-2016 AT10-2216 AT10-2416 AT10-2516 AT10-2616 AT10-2716 AT10-2816 AT10-3016 AT10-3216 AT10-3616 AT10-4016 AT10-4416 AT10-4816 AT10-60

151618192022242526272830323640444860

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F111

47.7550.9357.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

888888888888

101010101616

515460666675838387919397

106119131_

__

212121212121212121212121212121212121

212326283034383939393939424552576272

45.949.155.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

313131313131313131313131313131313131

3235404446525860606060606570808895

110

0.120.140.170.190.210.260.290.310.360.370.400.440.490.630.771.001.091.70

10mm Pitch Pulleys for 16mm Wide Belt Ref. 16AT10


151618192022242526272830323640444860

1F1F1F1F1F1F1F1F1F1F1F1F1F1F1F111

47.7550.9357.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

888888888888

101010101616

515460666675838387919397

106119131_

__

303030303030303030303030303030303030

212326283034383939393939424552576272

45.949.155.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

3235404446525860606060606570808895

110

0.160.180.230.250.280.340.390.420.480.540.550.640.690.871.071.351.522.34

404040404040404040404040404040404040

18192022242526272830323640444860


57.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

60666675838387919397

106119131_

__

55.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

47474747474747474747474747474747

10101212121212121212121616161616

26283034383939393939424552576272

37373737373737373737373737373737

404446525860606060606570808895

110

0.260.280.320.400.480.530.570.600.640.740.851.071.321.611.933.00

10mm Pitch Pulleys for 32mm Wide Belt Ref. 32AT10-


18192022242526272830323640444860


57.3060.4863.6670.0376.3979.5882.7685.9489.1395.49

101.86114.59127.32140.06152.79190.99

60666675838387919397

106119131_

__

55.458.661.868.274.577.780.984.187.293.6

100.0112.7125.4138.2150.9189.1

10101212121212121212121616161616

26283034383939393939424552576272

56565656565656565656565656565656

404446525860606060606570808895

110

0.430.470.520.570.740.770.820.910.961.171.301.642.002.362.834.37

66666666666666666666666666666666

Pulley InstallationCorrect and accurate installation of Timing Drives is essential. Pulley alignment and shaft parallelism is very important as misalignment ofthe drive will cause unequal loading across the belt width and edge wear of belt on flanges. Pulley alignment can be checked by placing astraight edge against the outside edge of the pulleys and adjusting so contact made evenly across both pulleys.The shafts should be located within a rigid framework, as any distortion under load could result in a reduction of centre distance whichwill cause jumping of belt on pulley teeth. If idlers are used they must be locked firmly into position after correct belt tensioning. Refer to page 10 for additional information on drive installation.

25 AT10-1525 AT10-1625 AT10-1825 AT10-1925 AT10-2025 AT10-2225 AT10-2425 AT10-2525 AT10-2625 AT10-2725 AT10-2825 AT10-3025 AT10-3225 AT10-3625 AT10-4025 AT10-4425 AT10-4825 AT10-60

32 AT10-1832 AT10-1932 AT10-2032 AT10-2232 AT10-2432 AT10-2532 AT10-2632 AT10-2732 AT10-2832 AT10-3032 AT10-3232 AT10-3632 AT10-4032 AT10-4432 AT10-4832 AT10-60

50 AT10-1850 AT10-1950 AT10-2050 AT10-2250 AT10-2450 AT10-2550 AT10-2650 AT10-2750 AT10-2850 AT10-3050 AT10-3250 AT10-3650 AT10-4050 AT10-4450 AT10-4850 AT10-60

Type 1

d Mdp do

F

L

L

F

d MA dp do

Type 1F

CROSS+MORSE



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Special Belt BackingsTo assist in the movement of many products there is a range ofspecialist materials which can be bonded to the back of all sizesof Polyurethane Belts. Thickness up to 15mm enable profilingof the backing to transport special shapes, such as drawingtube from extrusion process. Materials available with coefficient of friction varying for 0.3µto 1.3µ and hardness 70° ShA down below 35° ShA, includingopen cellular materials which accommodate profile changes.Materials include polyurethane in various grades and hardnessvalues, Linatex, Neoprene for haul - off applications, PVC,Natural Rubbers and Silicon Rubber in flat finish on honeycomb construction for higher grip.Materials, profiles and constructions are available to cater foralmost every application.

43

Open Ended and SpecialConstruction Polyurethane Timing Belts

Open ended belts are manufactured in a continuous processwith the steel tension members running parallel to the edges.The belts are manufactured in standard 50 metre rolls, butlonger lengths are available to request. The open ended beltsare normally used for reciprocating linear motions such asrobotics.The open ended belts can also be used to produce long lengthendless belts which are produced using an automated, precision cut vee finger joint which is weld joined. Thestrength of the join is by the polyurethane, but due to the largecontact area loads up to 50% of the belt capacity can still betransmitted, whilst excellent flexibility and smooth running areretained, The joined belts are mainly used on Conveyor applications, and the addition of welded attachments and special backing materials extends application opportunities.

Linear DrivesSynchronised movements and alignment of goods is an essential element in automated handling systems.

Conveyor SystemsFor conveyor applications the belts can be used in standardwelded endless form to transport items in a horizontal plane,or for inclined applications or where positioning is required awide range of polyurethane profiles is available for permanentwelding to the timing belt back surface. Profiles can also bedeveloped for specific applications. Flighted belts ensure positive movement of products with accurate location providing an option to attachment Roller Chain.

T5T10AT5AT10AT20XLLH

Belt Type Pitch p H1 H2 K B°

5.0010.00

5.0010.0020.00

5.089.53

12.70

2.204.502.705.008.002.253.504.30

1.202.501.202.505.001.251.902.30

1.803.502.505.00

10.001.353.204.40

4040505050504040

T5T10AT5AT10AT20XLLH

Belt Type Pitch p H1 H2 K B°

5.0010.00

5.0010.0020.00

5.089.53

12.70

2.204.502.705.008.002.253.504.30

1.202.501.202.505.001.251.902.30

1.803.502.505.00

10.001.353.204.40

4040505050504040

T5

T10

AT5

AT10

AT20

Belt Type 6

Standard Widths Metric Belts - width in mm10 16 25 32 50 75 100 150 200

•

•

•

•

••••

•••••

•••••

•••••

••••

•

••

•• •

XL

L

H

Belt Type 025

Standard Widths Imperial Belts - width in 0.01”031 037 050 075 100 150 200

•••

• • ••

•••

•••

•• •

Standard Tooth Forms available

Linear DrivesSynchronised movements and alignment of goods is an essential element in automated handling systems.

Conveying SystemsPrecise control and synchronisation inthe transportationand positioningof goods.

Consult Cross+Morse for the best solution to your conveying application

H1

P

ß°

H2

K

CROSS+MORSE



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f

f

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810

XL

Timing Belt Clamping Platesand Timing Bars

Clamping Plates for HTD Belts

44

Timing Belt Clamping PlatesFor the simple retention of open ended timing belts used on conveyingor reciprocating drives, a standard range of clamping plates is availablefor all the heavier pitch belts. Manufactured in aluminium, these clamping plates provide accurate, location of the belts.

Belt PitchSize

F d B A S

L (Belt Width Code)

20 30 40 50 55 85 115 170

C

8M

14M

8

10

9

11

5

9

66

116

15

22

45 55

71

75

86

110

116 146 201

Clamping Plates for Classical Series Belts

Belt PitchSize

F d B A S

L (Belt Width Code)

025

C

L

H

5.5

911

3.5

59

42.5

76.6106.9

8

1522

037 050 075

25.5 28.5

3945

4551

51.557.5

6

8

Clamping Plates for ‘T’ Series Belts

Belt PitchSize

F d B A S

L (Belt Width Code)

10

5.5

9

3.2

5

41.8

80

8

15

16 25 32 50

T5

T10

35

41

29

57 75

6

8

Clamping Plates for ‘AT’ Series Belts

Belt PitchSize

F d B A S

L (Belt Width Code)

10

C

5.5

9

3.2

5

41.8

80

8

15

16 25 32 50

AT5

AT10

35

41

29 44

50 57 75

Timing BarsFor extra wide belt drives and to manufacture special pulleys. Available intooth sizes indicated in following table of standard bar sizes.

No.Teeth XL L T2.5 T5 T10

No.Teeth

Belt Type Belt Type

XL L T2.5 T5 T10

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_______________________

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1011121314151617181920212223242526272829303233

__

a

aaaaaaabbbc

c

cccccc

_

_

_

_

cccceeeeeeffffffffffff_

eeeefffffffffff

f

f

ff

_

_

34353637383940414243444546485056606570728090100

fff

fffffff

f

ff

f

___

__

_

__

_

cdd

e

e

e

ee

ef

ffff

ff

_

_

_

_

_

_

_

_

_

fffff

f

f

fffff

f

ffff

_

_

_

_

__

_

__

_

__

_

_

All sizes indicated available in aluminium.XL and L sizes also available in steel.

Bar Size I L

50

90

125

132

140

160

75

120

140

140

140

160

C

44

50

_

_

_

_

_a

b

c

d

e

f

100

CROSS+MORSE


BACKINDEXTiming Belts :

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Eliminate low temperature

Increase the diameter of the pulleys oruse belts and pulleys of smaller pitch

Eliminate the moisture

Refer to factory for special belt

Use a higher capacity belt

Increase the diameter of the pulleys

Restore the initial centre distance andstrengthen the bearings

Causes of Premature Belt Failure

Number of teeth in mesh less than six

Excessive load

45

Timing Belt Trouble Shooting Guide

When a timing belt drive is correctly designed and installed - with proper consideration given to design factors for service conditions - premature failure should not occur. If problems are encountered the table below may help identify the cause and suitable corrective action. In addition to problems shown less apparent causes of drive failure may exist, such as excessive reversebending, sub-minimum diameter idler, etc; and for complete assurance in determining cause of failure and correct remedy it isalways advisable to consult a drive specialist.

Mode of Failure Probable Causes Corrective Action

Exposure to excessively high temperatures(over + 100°C) or oil contamination

Reduction of centre distance due tobearings not being firmly fixed

Apparent elongation of the belt

Reinstall the flanges properly

Align pulleys

Belt overriding the flanges Faulty installation of the flanges

Misalignment of pulleys

Excessive wear of pulley teeth Excessive overloading

Belt excessively taut

Pulley material insufficiently hard

Use a higher capacity drive

Reduce the centre distance

Harden the pulley surface

Abnormal wear of the belt:a) on the side of the tooth

Belt excessively taut

Excessive overloading

Incorrect contour or diameter of pulley

Excessive installation tension

Incorrect diameter of pulley

Incorrect contour or diameter of pulley

Misalignment or wrong setting of pulleys

Oscillation of the axes and/or thebearings

Flanges bent

Reduce centre distance

Use a wider belt

Replace pulley after checking

Reduce centre distance



Correct the positioning of the pulleys

Reinforce the bearing mountings

Replace flanges

Failure through traction or throughlaceration of the teeth, indicatingcorrosion of the tension member

Shearing of belt teeth

Rupture of tension member

Breaks or cracks in the topsurface of the belt

Exposure to excessively low temperatures(below - 25°C)

Softening of the top surface ofthe belt

Diameter of pulley too small

Excessive moisture

Acid or caustic atmosphere

Excessive load

Diameter of pulley below minimum

Drive excessively noisy Pulleys out of line

Excessive installation tension

Excessive load

Diameter of pulley below minimum

Air trapped in belt

Align pulleys

Reduce the centre distance

Use a higher capacity drive

Increase the diameter of the pulleys

Change to Metric Series belt drive

b) on the bottom of the tooth

c) at the tooth root

d) on the side of the belt

Eliminate the high temperature or reducethe amount of oil present

Increase the pulley diameters or usebelts and pulleys of smaller pitch

Use a higher capacity bel

END

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