8 application examples am - skf · 2020-04-10 · spur gear, two-stage application geared motor for...

8

Numerous discussions with manufac-

turers, which preceded the selection of

the gearboxes shown here, confirmed

that there is a trend towards specialist

gearboxes in order to better satisfy,

both technically and economically, the

demands of individual applications.

However, as often as possible the

designs use components from stand-

ard series – an advantage not least

from a logistics point of view.

In the following examples the bear-

ings used are listed starting with those

for the input shaft and following the

order in which they occur in the power

train. The examples show that bear-

ings of standard series are preferred

and only a few special bearings are

used. The examples also confirm an

earlier observation in the section deal-

ing with bearing arrangements for gear

shafts, namely that virtually all “cata-

logue” bearing types are used in gear-

boxes. SKF, with its comprehensive

range of technically advanced standard

bearings, assists the designer in pro-

ducing technically and economically

competitive gearboxes.

115

8 Application examples

Application examples

In this section various interesting and well-

proven gearbox designs from important manu-

facturers are presented. In order to give a clear

presentation, the most important technical data

are presented in table form. This has made it

possible to avoid long descriptions. The gear-

box drawings will certainly inspire designers.

Bevel/spur

Application Universal (e.g. conveyor drive)

Manufacturer A. Friedr. Flender AG, Bocholt, Germany

Input drive Depending on application

Drive rating P = 53 kW

Drive speed n = 1 500 r/min

Total ratio i = 1 : 63

Power take-off Depending on application: solid, flanged or hollow

shaft

Output torque M2 = 23 800 Nm

Dimensions 960 × 580 × 300 mm

Mass G = 635 kg

Gears Case hardened

Lubrication type Oil bath

Lubricant Oil with viscosity to ISO VG 460

Operating temperature Tmax = 90 °C

Sealing Radial shaft seals, or largely wear-free labyrinth

seals

Bearings

No. 1 shaft 2 × 32309 BJ2

No. 2 shaft 2 × 32310 J2

No. 3 shaft 2 × 32314 J2

No. 4 shaft 2 × 30224 J2

Minimum bearing life Depending on application

116


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Bevel/spur, two-stage

Application General industrial

Manufacturer Rossi Motoriduttori, Modena, Italy

Input drive Electric motor



Total reduction i = 10,3 : 1



Mass G = 282 kg

Gears Hardened


Lubricant EP oil with viscosity to ISO VG 220

Operating temperature T = 65 to 80 °C

Sealing Radial shaft seals

Bearings

No. 1 shaft 2 × 32310 B

No. 2 shaft 2 × 32312

No. 3 shaft 2 × 32026

Remarks Universal attachment possible; stiff, one-piece

casing; standard hollow shaft at output side; choice

of drive shaft arrangement (position)

118


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120

Worm, single stage

Application Tilting arrangement

Manufacturer A. Friedr. Flender, Bocholt, Germany

Input drive Electric displaceable anchor motor, V-belts

Drive rating P = 2,3 kW

Drive speed n = 636 r/min


Output drive Hollow shaft, cartridge type

Output torque M2 max = 2 350 Nm


Mass G = 65 kg

Gears Concave flank teeth, worm case hardened and

ground, worm wheel of bronze

Lubrication type Oil bath; worm wheel bearing greased

Lubricants Polyglycol oil with viscosity to ISO VG 680; worm

wheel: rolling bearing grease

Operating temperature Tmax = 100 °C (oil bath)

Sealing Radial shaft seals at input and output sides

Bearings

Worm shaft 2 × 31308 J2

Wheel 2 × 6017 or 2 × 32017 X

Remarks Cooling by fan wheel on worm shaft


8

121


122


Eccentric drive with cycloid cams

Application General industrial

Manufacturer SUMITOMO CYCLO EUROPE, Markt Indersdorf,

Germany

Input drive Via coupling



Total reduction i = 357 : 1

Output drive Output shaft with key


Dimensions 300 ∅ × 439 mm

Mass G = 69 kg

Lubrication type Grease

Operating temperature T = 60 °C

Sealing Radial shaft seals on input and output shafts

Bearings

No. 1 shaft 1 × 6302-Z; 1 × 6302

No. 2 shaft 1 × 6207; 1 × 6307

No. 3 shaft 1 × 6215-Z; 1 × 6213-ZNR

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124


Bevel gear, single stage

Application Kaplan turbine/generator

Input drive Kaplan turbine

Rating P = 2 005 kW

Speed n = 232 r/min

Torque M1 = 82 500 Nm (turbine)

Total ratio i = 1 : 3,23

Power take-off Lamellar coupling (rotationally

stiff, can bend elastically, with slipping elements),

generator

Dimensions 1 730 × 1 600 × 3 056 mm

Mass G = 9 000 kg

Gears Cyclopalloid/HPG, case hardened

Lubrication type Circulating oil



Seals Radial shaft seals on input and output shafts

(on the input shaft with chamber for oil seepage)

Bearings

No. 1 shaft 1 × NU 1064 MA; 1 × 23060 CC/W33;

1 × 29360 E; 1 × 29248

No. 2 shaft 1 × 22348 CC/C3W33; 1 × 32040 X; 1 × 29340 E

Minimum bearing life L10h = 100 000 operating hours

Remarks Turbine shaft = gearbox input shaft. Turbine blade

adjustment via input shaft. Each bearing has tem-

perature monitoring. Connections for shock pulse

measurements. Very smooth running for environ-

mental reasons.

8

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126

Spur gear, two-stage

Application Wind power plant

Manufacturer Renk AG, Rheine, Germany

Input drive Wind turbine, claw coupling

Rating P = 168 kW

Speed n = 63 r/min

Input torque M1 = 25 480 Nm


Power take-off Elastic coupling, generator

Dimensions 1 215 × 900 × 1 000 mm

Mass G = 1 350 kg

Gears Helical cut, case hardened, ground


Lubricant Polyglycol oil with viscosity to ISO VG 220

Operating temperature T ≈ 80 °C

Seals Felt ring + 2 × V-rings (input)

Labyrinth + 2 × V-rings (output)

Bearings

No. 1 shaft 1 × 22315 E; 1 × NU 313 ECJ

No. 2 shaft 2 × 22319 E

No. 3 shaft 1 × NJ 228 ECJ/C3; 1 × 24034 CC/W33


Remarks Monitored by temperature recorder


127

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Planetary spur gear, two-stage

Application Wind power plant

Manufacturer David Brown, Huddersfield, Great Britain

Input drive Wind turbine, socket connection with clamping

rings

Rating P = 1 150 kW

Speed n = 24,5 r/min

Input torque M1 = 448 000 Nm


Power take-off Elastic coupling, generator

Dimensions 1 730 × 2 748 × 2 100 mm

Mass G = 9 500 kg

Gears Planetary wheels straight cut

Spur wheels helical cut, case hardened and

ground


Lubricant Synthetic oil with viscosity to ISO VG 320 EP

Seals Flingers with labyrinth seals

Bearings

Planetary carrier 1 × NCF 18/560 V; 1 × NCF 2972 V

3 planetary wheels 3 × 22338 CC/W33

Spur gear shaft 2 × NCF 2952 V

Spur gear pinion 2 × 32328

Auxiliary drive shaft 2 × 32320 J2

Hollow shaft 1 × NU 213 ECJ



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129

8

Planetary/spur, three-stage

Application Wind power station

Manufacturer Renk AG, Augsburg, Germany

Input drive Wind turbine, toothed coupling

Drive rating P = 1 327 kW


Total ratio i = 57,7 : 1


Dimensions 1 700 × 2 800 × 3 180 mm

Mass G = 11 600 kg

Gears Planetary and spur gears case hardened; spur

gears have double helix


Lubricant Synthetic oil with viscosity to ISO VG 220

Operating temperature T = 46 °C (oil inlet temperature)

Sealing Special shaft seal at input side, zinc seal at output

side

Bearings

Planetary carrier 1 × 608/800 MA; 1 × NJ 18/760 MA6/343016

6 planetary gears 6 × 24136 CC/C3W33/VE096

Planetary carrier 1 × 61888 N1MA

Spur gear shaft 2 × 313451 B (cylindrical roller bearing 320 × 440 ×

72 mm)

Pinion (auxiliary drive) 1 × 6222 N1/C3; 1 × NU 2222 ECJ/C3

Pinion (power take- off) 1 × 32228 J2/DF; 1 × NU 2228 ECMA/C3


Remarks Elastic gearbox suspension; permissible noise

level 85 dBA


130


131

8

Planetary/spur, superimposed

Application Ship’s generator drive


Input drive Combustion engine, claw coupling


Drive speed n = 297 to 425 r/min

Total ratio i = 1 : 4,2 to 1 : 6,1 (variable)

Power take-off Claw coupling


Dimensions 1 800 × 1 300 × 2 100 mm

Mass G = 6 300 kg

Gears Spur, sun and planetary gears case hardened and

ground, internally geared ring heat treated


Lubricant Oil with viscosity to ISO VG 100 or SAE 30

Operating temperature T = 70 °C (oil sump)

Sealing Zinc rings at input and output sides

Bearings

Coupling 2 × 6032 M/C3

Planetary carrier 1 × 6234 M/C3; 1 × 61938 MA/C3

Sun wheel 1 × 6224 MA/C3

Geared ring 2 × 6044 M/C3

3 planetary gears 6 × NJ 2313 ECMA/C3

2 spur gear intermediate

shafts 4 × NJ 2219 ECMA/C3

2 spur pinion shafts 4 × NJ 2218 ECMA/C3


Remarks A constant output speed and thus a constant fre-

quency for the generator are aimed at although the

input speed varies. The power is split after the

lamellar coupling (one part in the planetary gear

set, one part in the hydraulic pump and motor);

power rejoined via internally geared ring.


132


133

8

Spur gear, two-stage

Application Geared motor for industry

Manufacturer SEW-Eurodrive, Bruchsal, Germany

Input drive Electric motor (asynchronous, DC), pulley, turbo

coupling

Rating P = 0,75 to 37 kW

Speed n = 3 000 to 750 r/min

Total ratio i = 20,78 : 1 to 201,78 : 1

Power take-off Coupling, sprocket wheel, gear



Mass G = 173 kg



Lubricant Oil with viscosity to ISO VG 46 to ISO VG 200


Seals Radial shaft seals

Bearings

No. 1 shaft 1 × 30307 J2; 1 × NUP 2308 ECJ; 1× 30308 J2

No. 2 shaft 1 × NUP 213 ECJ; 1 × 6315-Z

Minimum bearing life L10h = 5 000 operating hours (for M2 max)


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135

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Spur gear, three-stage


Manufacturer Flender-Himmelwerk, Tübingen, Germany

Input drive Electric motor (asynchronous), may be DC; elastic

coupling, slip clutch or “Anlaufkupplung”

Rating P = 3 to 90 kW

Speed n = 750 to 1 500 r/min

Total ratio i = 1:18,27 to 1:113,61

Power take-off e.g. elastic coupling



Mass G = approx. 450 kg





Seals Radial shaft seals with dust lip

Bearings

No. 1 shaft 1 × NU 212 ECJ; 1 × 6212; 1 × NU 312 ECJ

No. 2 shaft 1 × 22208 E; 1 × 22309 CC

No. 3 shaft 1 × 22312 E; 1 × 21312 E

No. 4 shaft 1 × NJ 2217 ECJ; 1 × 22220 E


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Bevel/spur gear, three-stage


Manufacturer SEW-Eurodrive, Bruchsal, Germany

Input drive Electric motor (asynchronous, DC), coupling,

sprocket wheel belt pulley

Rating P = 1,5 to 45 kW

Speed n = 3 000 to 750 r/min

Total ratio i = 11,71 : 1 to 130,16 : 1

Power take-off Hollow shaft, coupling, sprocket wheel, gear



Mass G = 285 kg

Gears Spur: helical cut, case hardened and ground

Bevel: curved teeth and case hardened


Lubricant Oil with viscosity to ISO VG 46 to ISO VG 220


Seals Radial shaft seals on input and output shafts

Bearings

No. 1 shaft Electric motor bearings

No. 2 shaft 1 × 30310 J2; 1 × 30311 J2

No. 3 shaft 2 × 32310 J2

No. 4 shaft 2 × 6224

Minimum bearing life L10h = 5 000 operating hours (for M2 max)

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140


Application Main and auxiliary drive of the travelling gear of a

portal crane for container handling

Manufacturer Bonfiglioli Riduttori, Bologna, Italy

Input drive Electic motor

Drive rating P = 25 kW (main drive)

P = 4 kW (auxiliary drive)

Drive speed n = 1 750 r/min (main drive)

n = 1 450 r/min (auxiliary drive)

Total reduction i = 19,5 : 1 (main drive)

i = 39,6 : 1 (auxiliary drive)

Output torque M2 = 12 000 Nm (main drive)

M2 = 2 400 Nm (auxiliary drive)

Dimensions 835 × 1 115 × 560 mm

Mass G = 380 kg (main drive)

G = 100 kg (auxiliary drive)

Gears 20 Mn Cr 5, hardened

Lubrication type Circulating oil (main drive)

Oil bath (auxiliary drive)



Bearings

No. 1 shaft 2 × 31312 (main drive)

2 × 32014 X (auxiliary drive)

No. 2 shaft 1 × 30313; 1 × 30314 (main drive)

1 × 32208; 1 × 30307 (auxiliary drive)

No. 3 shaft 2 × NNC 4832 V (main drive)

2 × NJ 215 EC (auxiliary drive)

Remarks Forced circulating oil lubrication is needed for the

bearings on the vertical shaft. The auxiliary drive

is coupled in by hand as required. Each of the 16

runner wheels is driven by a geared motor. The

torques are taken up by the frame via torque

supports.


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142


Spur/planetary gear, three-stage

Application Swivelling drive for floating crane

Manufacturer Lohmann & Stolterfoht, Witten, Germany

Drive Electric motor (DC), elastic coupling

Rating P = 335 kW

Speed n = 500 r/min


Power take-off Pinion


Dimensions 1 500 ∅ × 4 132 mm

Mass G = 10 152 kg

Gears All gears straight-cut; spur, sun and planetary whe-

els case hardened and ground; hollow wheels heat

treated

Lubrication Oil bath


Seals Radial shaft seals on input and output shafts; gap-

type seal with grease fill for bearing at pinion side

of output shaft

Bearings

No. 1 shaft 1 × NJ 226 ECJ; 1 × 22218 CC/W33

No. 2 shaft 2 × NJ 228 ECJ

3 planetary wheels 3 × 22320 CC/W33

Planetary carrier 1 × NCF 1884 V; 1 × NCF 1892 V

3 planetary wheels 6 × NJ 2320 ECMA

Sun wheel 1 × 61836 MA

Pinion 1 × 24076 CC/W33


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144


Planetary, three-stage, vertical

Application Drive for slewing mechanism, e.g. for floating

crane or bucket excavator

Manufacturer Dorstener Maschinenfabrik AG, Dorsten, Germany

Input drive Electric motor, elastic coupling




Power take-off Pinion for slewing ring


Dimensions 640 ∅ × 1 750 mm

Mass G = 1 250 kg

Gears Sun and planetary gears case hardened;

internally geared rings hardened; straight cut teeth

Lubrication type Oil bath; bearings on input and output shafts

grease lubricated

Lubricant Oil with viscosity to ISO VG 220; rolling bearing

grease

Operating temperature T = 78 °C (oil bath)


Bearings

No. 1 shaft (input) 2 × 6215/C3

3 planetary gears 1st stage: 3 × 22207 CC

3 planetary gears 2nd stage: 3 × 22210 E

3 planetary gears 3rd stage: 3 × NJ 2213 ECJ

No. 2 shaft (output) 1 × NU 1034 MA; 1 × 23038 CC/W33


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146


Application Conveyor belt drive for tunnelling

Manufacturer Voith, St. Pölten, Austria

Input drive Electric motor (asynchronous), turbo coupling




Power take-off Hollow shaft with shrunk-on washer connection



Mass G = 490 kg

Gears Bevel gears Klingelnberg-Cyclo-Palloid;

Spur gears helical cut, case hardened, ground




Bearings

No. 1 shaft 1 × 31316 J1/DF; 1 × NJ 2316 ECM/C3

No. 2 shaft 2 × NJ 2314 ECMA/C3; 1 × QJ 312 N2MA/C3

No. 3 shaft 2 × NCF 2932 V


147

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Bevel, two-stage

Application Conveyor belt drive

Manufacturer Brook Hansen, Edegem, Belgium





Output drive On hollow shaft, shrunk-on washer connection


Dimensions 645 × 450 × 1 130 mm

Mass G = 500 kg

Gears Case hardened and ground


Lubricant Mineral oil with EP additives

Sealing Double-action labyrinth seal at input side

Radial shaft seals with dust lip at output side

Bearings

Shaft No. 1 2 × 31314; 1 × 22315 E

Shaft No. 2 2 × 22315 E; 1 × 81210

Shaft No. 3 2 × NCF 2934 V

Minimum bearing life L10h = 25 000 hours


148

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149

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Planetary, two-stage

Application Chain scraper conveyor for underground mine

Manufacturer Gebr. Eickhoff, Bochum, Germany

Input drive Electric motor via fluid coupling or elastic coupling

with motor where poles can be switched




Output drive Toothed coupling or flanged gearbox

Output torque M2 = 100 000 Nm (briefly 250 000 Nm)

Dimensions 816 × 1 250 × 1 155 mm

Mass G = 1 870 kg

Gears Sun and planetary wheels case hardened, hollow

wheels of nitrided hardenable steel


Lubricant Mineral oil (anti-wear + EP) with viscosity to

ISO VG 320


Sealing Radial shaft seal + dust seal at input side,

mechanical seal at output side

Bearings

No. 1 shaft 2 × 6222/C3

3 planetary gears 6 × NJ 2311 ECMA

3 planetary gears 3 × RN 315 ECP/QR

No. 2 shaft 2 × NJ 2868 ECMA/VE900


Remarks Robust casing ideal for mining applications; power

take-off shaft must briefly take up very large forces

from the conveyors


150


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Bevel/spur/planetary, three-stage

Application Chain scraper conveyor for underground mine

Manufacturer Gebr. Eickhoff, Bochum, Germany

Input drive Electric motor via fluid coupling, or elastic coupling

for switching pole motor




Power take-off Toothed coupling, or flanged gearbox

Output torque M2 = 100 000 Nm (briefly 250 000 Nm)

Dimensions 816 × 1 655 × 990 mm

Mass G = 2 980 kg

Gears Bevel, spur, sun and planetary gears case

hardened; ring with internal gear hardened and

nitrided


Lubricant Mineral oil (EP) with viscosity to ISO VG 320


Sealing Radial shaft seal + dust seal on input shaft;

mechanical seal on output shaft

Bearings

No. 1 shaft 1 × 31322 XJ2/DF; 1 × 22324 CC/W33

No. 2 shaft 1 × 22320 E; 1 × 22326 CC/W33

No. 3 shaft 2 × 32034 X

3 planetary gears 3 × RN 315 ECP/QR

No. 4 shaft 2 × NJ 2868 ECMA/VE900


Remarks Robust casing for mining conditions; output shaft

with bearing arrangement must be able to accom-

modate very high forces from the conveyor for brief

periods


152

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153

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Bevel/spur/planetary, three-stage

Application Ski lifts (seat and gondola types)

Manufacturer L. Kissling, Zurich-Seebach, Switzerland

Input drive Electric motor (asynchronous or DC), elastic

coupling


Drive speed n = 1 500 or 1 800 r/min

Total ratio i = 93,75 : 1 (or from 48,31 : 1 to 132,92 : 1)

Output drive Flanged-on rope sheave

Output torque M2 = 170 000 Nm; rope tension: s = 450 000 N

Dimensions 530 × 730 × 1 333 mm + 905 × 1 250 mm ∅

Mass G = 3 800 kg

Gears Bevel, spur and planetary wheels case hardened,

hollow planetary wheel hardened

Lubrication type Oil bath and circulating oil

Lubricant EP oil with viscosity to ISO VG 220 or ISO VG 150


Sealing Radial shaft seal + Z sealing washer at input side

and pairs of radial shaft seals + dust cover at

output side

Bearings

No. 1 shaft 1 × 31315 J2/DF, 1 × 22317 E

No. 2 shaft 2 × 23220 CC/W33

No. 3 shaft 2 × 23122 CC/W33

1 sun pinion 1 × 89310

3 planetary gears 6 × NCF 2222 V

Rope sheave 1 × 24048 CC/W33; 1 × 23048 CC/W33


Remarks Under-floor drive can be decoupled


154


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Planetary/bevel plate with adjoining reduction gear

Application Drive for pumps in extraction plant

Manufacturer Motovario, Modena, Italy


Drive rating P = 9,2 kW



Output torque M2 = 500 Nm

Mass G = 145 kg

Gears 100 Cr 6, hardened and heat treated




Bearings

No. 1 shaft 1 × 6213; 1 × 6309

No. 2 shaft 1 × 6213; 1 × NJ 210 EC

No. 3 shaft 2 × 32206

No. 4 shaft 1 × 30210; 1 × 30213


Remarks Gearbox is designed for maximum reliability under

difficult operating conditions


157

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158

Spur, split power, three-stage

Application Central drive for tube mill (cement)

Manufacturer A. Friedr. Flender, Bocholt, Germany

Input drive Electric motor (asynchronous), elastic coupling




Output drive Toothed coupling

Output torque M2 = 2 350 kNm; at start-up 5 885 kNm

Dimensions 3 380 × 4 000 × 3 780 mm

Mass G = 79 250 kg

Gears 1st stage: helical

2nd stage: straight cut

3rd stage: double helix

All gears case hardened



Operating temperature Tmax = 65 °C (oil sump)

Sealing Lamellar rings at input and output sides

Bearings

Shaft No. 1 2 × NU 2248 MA/C3; 1 × QJ 248 N2MA/C3

Shaft No. 1 (auxiliary drive) 2 × 6248 M/C3

Shaft No. 2 2 × NCF 2976 V

Shaft No. 3 (3×) 3 × NU 3068 MA/VE900; 6 × NU 3084 MA

Shaft No. 4 1 × 60/560 MA/C3; 1 × N 28/710 ECMB


Remarks The equal power split is achieved by a radially free

pinion and gears adjusted by oil injection method


159

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160

Bevel/spur gear, three-stage

Application Drive of a coal grinding mill

Manufacturer David Brown, Huddersfield, Great Britain


Rating P = 420 kW

Speed n = 990 r/min


Power take-off Grinding plate of mill


Dimensions 1 600 × 2 920 × 2 000 mm

Mass G = 25 600 kg

Gears Bevel: spiral cut in hard state

Spur: helical cut, ground, all case hardened




Seals Double radial shaft seals with additional flingers on

input shaft; labyrinth with additional special rubbing

seal on output shaft

Bearings

No. 1 shaft 1 × 32324 J2; 1 × 32220 J2

No. 2 shaft 1 × 32036 X/DF; 1 × 23036 CC/W33

No. 3 shaft 1 × 32036 X/DF; 1 × 23036 CC/W33

No. 4 shaft 1 × 230/560 CA/W33; 1 × 294/630 EM;

1 × 230/500 CA/W33


Remarks Forces from the grinding chamber are taken up by

the bearings on the output shaft


161

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162

Bevel/planetary, two-stage

Application Raw meal mill (cement industry)


Input drive Electric motor (squirrel cage), elastic coupling




Output drive Grinding receptacle


Dimensions 2 670 × 3 050 × 3 050 mm

Mass G = 68 600 kg

Gears Bevel, sun and planetary gears case hardened

and ground, internally geared ring pounded and

hardened


Lubricant Oil with ciscosity to ISO VG 220


Sealing Labyrinths at input and output sides

Bearings

Bevel pinion shaft 1 × BT2B 332931 (240 × 480 × 220 mm)

1 × NU 2252 MA/C3

Bevel wheel 1 × 32064 X/DF; 1 × NU 1060 MA/C3

3 planetary gears 3 × 23164 CC/C3W33


Remarks Temperature, pressure and oil flow rate monitored;

shock pulse measurements


163

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164

Planetary, three-stage

Application Locomotion drive for construction machines

Manufacturer Orenstein & Koppel, Hattingen, Germany

Input drive Flanged-on hydraulic motor, plug-type connection

Drive speed n = 4 000 r/min (adjustable)

Total reduction i = 80 : 1 to 200 : 1

Output Sprocket wheel or flanged-on rim



Mass G = 210 kg

Gears Sun and planetary wheels case hardened and

ground; hollow wheels heat treated and nitrided


Lubricant Gear oil SAE 90 or engine oil SAE 15W40

Sealing O-ring (static) at input side, mechanical seal +

V-ring at output side

Bearings

1st stage 3 × BC2B 322418 B (22 × 39 × 22 mm;

full complement)

2nd stage 3 × BC2B 322421/HB3 (35 × 52 × 26 mm;

full complement)

3rd stage 5 × BC2B 326111/HB3 (50 × 70 × 32 mm;

full complement)

Sprocket wheel 2 × T4DB 170

Brake 1 × 6009

Minimum bearing life L10h = 500 operating hours at maximum torque


165

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166

Spur/planetary, three-stage

Application Drive for articulation of excavator

Manufacturer Dorstener Maschinenfabrik AG, Dorsten, Germany





Output drive Hollow shaft with shrunk-on washer, cartridge-type

gearbox


Dimensions 800 ∅ × 1 130 mm

Mass G = 1 800 kg

Gears Spur and planetary gears case hardened

Internally geared rings heat treated



Operating temperature T ≈ 90 °C (oil bath)


Bearings

No. 1 shaft 2 × 6215

No. 2 shaft 2 × 6024

3 planetary wheels 3 × 22311 E

3 planetary wheels 3 × 22315 E

No. 3 shaft 1 × NCF 1852 V; 1 × NCF 1856 V



167

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168

Spur, four-stage, vertical

Application Drive for mixer for chemical industry

Manufacturer Jahnel Kestermann, Bochum, Germany

Input drive Electric motor (asynchronous or DC)

Drive rating P = 75 (or 55) kW

Drive speed n = 1 500 (or 1 000) r/min


Power take-off Flanged coupling


Dimensions 1 320 × 1 000 × 1 720 mm

Mass G = 4 700 kg


Lubrication type Oil bath and circulating oil



Sealing Radial shaft seal at input side

Oil cover and V-ring on output shaft

Bearings

No. 1 shaft 2 × 33215

No. 2 shaft 2 × 32314

No. 3 shaft 1 × 30218; 1 × 32318

No. 4 shaft 2 × 32322


Mixer shaft 2 × 32038 X; 1 × 23060 CCK/W33 + OH 3060 H


Remarks Permissible noise level 75 dBA


169

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Spur, four-stage, vertical

Application Surface ventilator

Manufacturer Brook Hansen, Edegem, Belgium






Dimensions 760 × 925 × 1 075 mm

Mass G = 860 kg


Lubrication type Circulating oil; bearing at output side of output

shaft grease lubricated

Lubricant Mineral oil with EP additives

Sealing Double action labyrinth at input side;

rising pipe + radial shaft seal with dust lip

at output side

Bearings

No. 1 shaft 2 × T2ED 050

No. 2 shaft 2 × 32313

No. 3 shaft 2 × 22317 E

No. 4 shaft 1 × 22228 E; 1 × 22328 E


Remarks External radial force 4 500 kN and

external axial force 8 900 kN on the output shaft

170


171

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172

Spur, split power

Application Drive for briquetting roll press

Manufacturer Flender ESAT, Herne, Germany

Input drive Electric motor (asynchronous), V-belts




Power take-off Toothed coupling


Dimensions 1 620 × 3 510 × 1 200 mm

Mass G = 17 000 kg


Lubrication type Gears: oil bath

Bearings: circulating oil

Lubricant Mineral oil with viscosity to ISO VG 320

Operating temperature T = 60 °C (oil sump)


Bearings

No. 1 shaft 1 × 22330 CC/W33; 1 × 22324 CC/W33

No. 2 shaft 2 × 24132 CC/W33

No. 3 shaft 2 × NJG 2330 VH

No. 4 shaft (2×) 4 × 23238 CC/W33

No. 5 shaft (2×) 2 × 23068 CC/W33; 2 × 23976 CC/W33


Remarks Power split with independent load compensation

on the axially freely adjustable double helix pinion

shaft of the 3rd stage


173

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174

Spur gear, single stage

Application Pinion stand of hot strip finishing mill

Manufacturer SMS – Schloemann-Siemag AG, Hilchenbach,

Germany

Input drive Electric motor (DC), toothed coupling

Rating P = 10 000 kW

Speed n = 0 to 36,4 or 80,24 r/min


Power take-off Toothed coupling, rolls

Output torque M2 = 2 × 1 310 000 Nm

Dimensions 2 660 × 5 420 × 2 630 mm

Mass G = 49 100 kg

Gears Double helical, case hardened

Lubrication type Circulating oil with water cooler


Seals Labyrinth seals at input and output sides

Bearings

No. 1 shaft 1 × 240/600 CA/W33 and 1 × 240/500 CA/W33

No. 2 shaft 1 × 24184 ECA/W33 and 1 × 240/500 CA/W33



175

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176

Spur, two-stage

Application Drive for vertical edging stand of a blooming mill

(hot plate mill)


Germany

Input drive 2 electric motors (DC) via toothed coupling

Drive rating P = 2 × 1 600 kW

Drive speed n = 0 to ± 140/273 r/min


Power take-off 2 cardan shafts

Output torque M2 = 2 × 1 350 000 Nm

Dimensions 5 600 × 10 430 × 3 700 mm

Mass G = 258 000 kg

Gears Helical cut, ground;

1st stage and pinion,

2nd stage: case hardened; gear,

2nd stage: heat treated



Operating temperature T = 40 °C (oil supply temperature)


Bearings

No.1 shaft (2×) 2 × taper roller bearing 331197 A

(384,175 × 546,1 × 222,25 mm)

2 × cylindrical roller bearing BC2B 320041

(380 × 540 × 200 mm)

No. 2 shaft (2×) 2 × taper roller bearing BT2B 332663/HB1

(519,112 × 736,6 × 258,762 mm)

2 × cylindrical roller bearing 316077 A

(440 × 620 × 225 mm)

No. 3 shaft (2×) 2 × taper roller bearing BT2B 328310/HA4

(1 562,1 × 1 806,575 × 279,4 mm)

2 × cylindrical roller bearing BC1B 322416/HA1

(1 700 × 2 060 × 160 mm)

Weight balancing (2×) 4 × 29330 E


Remarks The two rolls are driven via two mechanically

separate, electrically synchronised motors


177

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178

Spur, with shift

Application Drive for a Sendzimir rolling mill

Manufacturer ERCMD Engrenages et Réducteurs Citroen-

Messian-Durand, Velizy-Villacoublay, France,

for DMS Seclin, France



Drive speed n = 0 to 350/850 r/min

Total ratio i1 = 1 : 1; i2 = 1,595 : 1

Power take-off 4 toothed couplings

Output torque 4 × M2 = 40 925 Nm

Dimensions 2 430 × 4 190 × 4 820 mm

Mass G = 52 000 kg

Gears Input stage: helical cut, case hardened, ground

Second stage and pinion stand: double helix



Operating temperature T = 45 °C (oil inlet temperature)

Seals Felt seals with labyrinth on input shaft; radial shaft

seals on output shafts

Bearings

No. 1 shaft 1 × 23168 CC/C3W33; 1 × 23080 CAC/C3W33

No. 2 shaft 1 × 23168 CC/C3W33; 1 × 23164 CC/C3W33

No. 3 shaft 2 × NU 19/670 ECMA

No. 4 shaft 2 × 23080 CAC/C3W33

No. 5 shafts (2×) 4 × 23244 CC/C3W33; 2 × QJ 1044 N2MA/C4

No. 6 shafts (2×) 4 × 23044 CC/C3W33; 2 × QJ 1044 N2MA/C4


Remarks Axial forces on the output shafts 40 000 N per

shaft


179

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180

Spur, with shift

Application Drive for aluminium foil mill (rolling mill)

Manufacturer David Brown, Huddersfield, Gt. Britain

Input drive Two electric motors; elastic couplings

Drive rating P = 2 × 3 000 kW

Drive speed n = 374 or 935 r/min

Total ratio i1 = 1 : 1; i2 = 1 : 2,5

Power take-off Torsionally elastic coupling

Output torque 2 × M2 max = 190 900 Nm

Dimensions 1 810 × 4 530 × 4 135 mm

Mass G = 45 700 kg

Gears Double helix, case hardened, ground


Lubricant EP oil with viscosity to ISO VG 220


Sealing Labyrinth with radial shaft seal on input and

output shafts

Bearings

No. 1 shafts (4×) 8 × 22244 CC/W33

No. 2 shafts (4×) 8 × 23248 CC/W33

No. 3 shaft 2 × 230/500 CA/W33

No. 4 shaft 2 × 60/500 MA

No. 5 shaft 2 × 24068 CC/W33

No. 6 shaft 2 × 24064 CC/W33



181

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182

Spur, with shift, one-stage

Application Drive for reeler for hot rolled sheet


Germany



Drive speed n = 0 to 400 or 1 200 r/min

Total ratio i1 = 1 : 2,37; i2 = 1 : 5,19

Power take-off Toothed coupling

Output torque M2 = 112 000 or 236 000 Nm

Dimensions 2 075 × 2 900 × 1 620 mm

Mass G = 17 885 kg





Bearings

Shaft No. 1 1 × 23240 CC/C3W33; 1 × 24134 CC/C3W33

Shaft No. 2 1 × 23056 CC/C3W33; 1 × NNU 4960 B/SPC3W33

2 shifting gears 4 × 239/500 CA/C3W33



183

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184

Planetary

Application Drive for rolls of continuous casting plant

Manufacturer Brevini Riduttori, Reggio Emilia, Italy

Input drive Electric or hydraulic motor



Total reduction i = 555 : 1


Dimensions 970 × 1 280 mm

Mass G = 1 850 kg

Gears Case hardened

Lubricant EP oil SAE 80



Bearings

No. 1 shaft 1 × 16022

2nd planetary stage 6 × AL-NNC 5010 CV

3rd planetary stage 6 × AL-NNC 5016 CV

4th planetary stage 10 × AL-NNC 5022 CV


Minimum bearing life L10h = 100 000 hours

Remarks Gearbox comprises modules from series units


185

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186

Spur, three-stage

Application Single screw extruder

Manufacturer Santasalo GmbH, Wuppertal, Germany

Input drive Electric motor (DC), elastic coupling



Total reduction i = 1 : 59,3

Power take-off Extruder screw


Dimensions 1 580 × 2 680 × 1 665 mm

Mass G = 12 000 kg






Bearings

No. 1 shaft 2 × 22328 CC/W33



No. 4 shaft 1 × NCF 3068 V; 1 × NCF 2972 V;

1 × 29480 EM; 1 × 81164

Minimum bearing life 40 000 operating hours

Remarks Noise damping cover to reduce noise level


187

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188

Spur switching gear, two-stage

Application Drive for plastic extruder

Manufacturer Zahnradwerk Köllmann, Wuppertal, Germany

Input drive Electric motor (DC), elastic coupling

Rating P = 43 to 49 kW

Speed n = 1 790 r/min

Total ratio i1 = 1 : 23,95, i2 = 1 : 17,43

Power take-off Socket on extruder screw

Output torque M2 = 5 600 Nm (1st gear)

M2 = 4 600 Nm (2nd gear)


Mass G = 670 kg





Seals Fluoro rubber radial shaft seals

Bearings

No. 1 shaft 1 × 22309 CC; 1 × NJ 309 ECJ

No. 2 shaft 1 × 22311 E; 1 × NJ 311 ECJ; 4 × K 90×98×27

No. 3 shaft 2 × 6221; 1 × 29422 E


Remarks Noise level < 80 dBA


189

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190

Spur, two-stage

Application Drive for test rig

Manufacturer Voith, St. Pölten, Austria

Input drive Hydraulic motor


Drive speed n = 465 to 1 953 r/min



Dimensions 740 × 1 219 × 630 mm

Mass G = 1 135 kg




Bearings

No. 1 shaft 2 × NJ 2316 ECM/C3; 1 × QJ 313 N2MA/C3

No. 2 shaft 2 × NJ 2320 ECMA/C3

No. 3 shaft 2 × 23230 CC/C3W33


191

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8 application examples am - skf · 2020-04-10 · spur gear, two-stage application geared motor for...

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