radial, angular, and 4-point contact thin section ball ... · pdf filethin section ball...

Thin Section Ball Bearings

Industrial TectonicsBearings

ISO9001/AS9100

www.rbcbearings.com800.390.3300

Precision-engineered solutions for aerospace,semiconductor, and custom machinery applications.

Radial, Angular, and 4-point Contact

2

RBC Bearings Incorporated (RBC Bearings, RBC) has had a longtradition of innovation, commitment, and quality since the companywas founded in 1919. Today, RBC Bearings has grown into a world-class manufacturer of standard and custom-engineered bearings andrelated products, with a product focus on research, testing, anddevelopment of the best product for specific applications.

What We Manufacture

RBC Bearings, with facilities throughout North America andEurope, provides bearings and precision products for applications inthe construction, mining, material handling, transportation and off-highway equipment, robotics and automation, farming, machinetool, and semiconductor equipment industries. Through RBCAerospace Bearings, the company is a major manufacturer of high-ly-engineered bearings and precision products for military, defense,and commercial aerospace applications.

RBC’s high-quality bearings include:

• Heavy Duty Needle Roller Bearings - Pitchlign® caged heavyduty needle roller bearings, inner rings, type TJ TandemRoller®

bearings for long life.

• Spherical Plain Bearings - Radial, angular, contact, high mis-alignment, extended inner ring, DuraLube™ maintenance-freespherical plain bearings, QuadLube® long life bearings,ImpactTuff® case carburized bearings, ShimPack® double-actingangular contact bearings, CrossLube® lubrication groove systems,SpreadLock® Seal, and MillTuff™ 3-part bearings.

• Cam Followers and Yoke Rollers - Standard stud, heavy stud,yoke type, caged roller followers, RBC Roller® long life cam fol-lowers, HexLube® universal cam followers, airframe track rollers.Mastguide rollers and carriage rollers, chain sheaves (for leaf chain),toothless sprockets (for roller chain), and heavy-duty roller bearingconstruction.

• Rod Ends - Commercial and aerospace, precision, Mil-Specseries, self-lubricating, inch and metric. Heim®, Unibal®, andSpherco™ brands.

• Self-Lubricating Bearings - Radial, thrust, rod ends, sphericalplain bearings, high temperature, high loads, inch and metric.Fiberglide® brand.

• Thin Section Ball Bearings - Standard cross sections to one inch.Sizes to 40 inches. Stainless steel and other materials available.Seals available on all sizes and standard cross sections.

• Airframe Control Bearings - Ball bearing types, self-lubricatingtypes, needle roller track rollers.

• Ground, Semiground, and Unground Ball Bearings - Full com-plement, utilizes design and burnished races for higher loads, longlife, and smooth operation.

• Dowel Pins, Loose Needle Rollers, Shafts

• Tapered Roller and Tapered Thrust Bearings - Case-hardenedand through-hardened in a variety of sizes, used in Class 8 heavytruck and trailer wheel bearings, final drive transmissions and gearboxes.

• Custom Designed Bearings - RBC produces a wide range of cus-tom bearings in various materials for specific applications.

RBC Thin Section Bearings

RBC thin section ball bearings are engineered to solve a variety ofdesign problems that cannot be solved with conventional ball bearings.

A bearing is considered a thin section when the bore diameter is greaterthan four times the radial cross section. Within any thin section bearingseries, the cross section remains constant as the bore diameter changes.Typically the cross section is twice the ball diameter, and nominaldimensions are given in inches.

Some advantages of RBC thin section ball bearings are:

• Light weight • Multi-load capabilities• High stiffness • Variety of cross sections & sizes• Small cross section • Modified & custom bearings

RBC thin section ball bearings are most often found where space limita-tions, combined loading, and weight restrictions pose unique designrequirements.

RBC also designs and manufactures special thin section ball bearingstailored for specific applications.

How We Can Serve You

RBC has implemented a total quality control system that uses statisticalquality control at all facilities, and manufactures in high volume to ajust-in-time program.

To serve the ongoing needs of customers, RBC has a network of over1,600 distributors and sales engineers throughout the US, Europe andSouth America, with authorized agents worldwide. For assistance withyour bearing application, contact:

Customer Service - 800.390.3300

Warranty

RBC products are warranted for material and workmanship for a periodnot to exceed 90 days from shipment and for a value not to exceed purchase price. No other warranty is in effect.

Disclaimer and Intellectual Property Statement

The materials comprising this Catalog are provided by RBC BearingsIncorporated (“RBC Bearings, RBC”) as a service to its customers onan "as-is" basis for informational purposes only. RBC assumes noresponsibility for any errors or omissions in these materials. RBCmakes no commitment to update the information contained herein.

RBC makes no, and expressly disclaims any, representations or warranties, express or implied, regarding the Catalog, including, without limitation, any implied warranties of merchantability or fitnessfor a particular purpose. RBC makes no, and expressly disclaims any,warranties, express or implied, regarding the correctness, accuracy,completeness, timeliness, and reliability of the text, graphics and anyother items in the Catalog. Under no circumstances shall RBC, its affiliates, or any of its respective partners, officers, directors, employees, agents or representatives be liable for any damages,whether direct, indirect, special or consequential damages for lost revenues, lost profits, or otherwise, arising from or in connection withthis Catalog and the materials contained herein.

All materials contained in the Catalog are protected by copyright laws,and may not be reproduced, republished, distributed, transmitted, displayed, broadcast or otherwise exploited in any manner without theexpress prior written permission of RBC.

RBC's names and logos and all related trademarks (including RBC PartNumbers, Series Numbers, and Cone and Cup Numbers), tradenames,and other intellectual property are the property of RBC Bearings andcannot be used without its express prior written permission.

3

TABLE OF CONTENTSSelection Guide

Part Number Designation

Product Tables

Radial (Conrad) Contact C-Type

Angular Contact A-Type

4-Point Contact X-Type

Sealed Radial (Conrad) Contact C-Type

Sealed 4-Point Contact X-Type

Engineering Data

Tolerance Tables

Custom Features

Typical Applications & Custom Bearings

Engineering Application Data

4

5

6 - 11

12 - 17

18 - 23

24 - 25

26 - 27

28 - 33

34 - 36

37 - 39

40 - 42

43

KAA1.0 - 1.5"

KA2.0 - 12.0"

KB2.0 - 20.0"

KC4.0 - 30.0"

JU4.0 - 12.0"

KD4.0 - 30.0"

KF4.0 - 40.0"

KG4.0 - 40.0"

3/16"

Series :Bore Size :

CROSSSECTION 1/4" 5/16" 3/8" 3/8" 1/2" 3/4" 1"

CROSS SECTIONS OFRBC THIN SECTION BALL BEARINGS

TAB

LE

OF

CO

NT

EN

TS

SE

LE

CT

ION

GU

IDE

PAR

T #

DESIGNATIO

NR

AD

IAL

C-T

YP

EANG

ULARA

-TY

PE

4-PT.

X-T

YP

ES

EA

LE

DC

-TY

PE

SE

AL

ED

X-T

YP

EENG

INEERINGD

ATA

TOLERANCES&

FIT

SC

US

TOM

FE

AT

UR

ES

SE

PAR

TOR

GU

IDE

TY

PIC

AL

APPLICATIONS

CU

STO

MB

EA

RIN

GS

DA

TAFA

X

4

RBC THIN SECTION BALL BEARING SELECTION

LOAD CONDITIONBearing

TypeBall

ContractReversing

AxialCombined

Radial, Axial & MomentRadial Axial Moment

C Radial Good Fair Poor Fair PoorA Angular Good Very Good Do not use Do not use Do not use X 4-Point Fair Good Good Good FairB Double Angular Very Good Very Good Very Good Very Good GoodF Double Angular Very Good Very Good Very Good Very Good GoodT Double Angular Very Good Excellent Do not use Do not use Do not use M Double Angular Excellent Excellent Excellent Excellent Excellent W Double Angular Excellent Excellent Excellent Excellent Excellent

C—TYPE(RADIAL CONTACT)

A—TYPE(ANGULAR CONTACT)

X—TYPE(4-POINT CONTACT)

B—TYPEDUPLEX BACK-TO-BACK (DB)

F—TYPEDUPLEX FACE-TO-FACE (DF)

T—TYPEDUPLEX TANDEM (DT)

M—TYPE SUPERDUPLEX BACK-TO-BACK

For more information visit our web site at rbcbearings.com

W—TYPESUPERDUPLEX FACE-TO-FACE

5

XType

6

PSeparator

7

0Precision

8

M*Radial Play

9**

0.187

0.250

0.312

0.375

0.500

0.750

1.000

0.375

0.187

0.250

0.312

0.375

0.500

0.750

1.000

0.500

x

x

x

x

x

x

x

x

AA

A

B

C

D

F

G

U

A

B

C

F

M

T

W

X

Angular contact single bearing

Back-to-Back Angular contact duplex pair

Radial contact

Face-to-Face Angular contact duplex pair

Super duplex Back-to-Back

Tandem Angular contact duplex pair

Super duplex Face-to-Face

Four-point contact

Position 6 - TypePosition 2 - Series

RBC THIN SECTION BALL BEARINGSPART NUMBER DESIGNATION

EXAMPLENOMENCLATUREPOSITION

KMaterial

1

ASeries

2

52100 Bearing Steel

52100 Bearing Steel

M-50 Tool Steel

52100 Bearing Steel

440 C Stainless Steel

Other

J

K

M

N

S

Z

Two seals - molded rubber, steel reinforced

No seals or shields

No seals or shields

Thin Dense Chrome plating

No seals or shields

Rings, Balls Seals, Shields, Coating

Position 1 - Material

0

3

4

6

ABEC 1F

ABEC 3F

ABEC 5F

ABEC 7F

Reference: ANSI/ABMA Std 26.2

Class Description

Position 8 - RBC Precision Class

1

3

2Size

4

0

5

RBC

*The alphanumeric identification systemis used under license.

Bore size (inches)multiplied by 10

Positions 3, 4, 5 - Size

SE

LE

CT

ION

GU

IDE

PAR

T #

DESIGNATIO

N

Snap-over cage

None (full complement)

Circular pocket

Circular pocket

Snap-over cage

Snap-over cage

Circular pocket

Snap-over cage

Circular pocket

Other (toroids, spacer balls, etc.)

D

F

G

H

L

P

R

T

U

Z

Position 7 - Separator

Phenolic Laminate

N/A

Nylon

Phenolic Laminate

Nylon

Brass or Composite

Brass or Composite

Stainless Steel

Stainless Steel

as specified

.0000 to .0005 C

.0000 to .0010 C

.0005 to .0010 C

.0005 to .0015 C

.0010 to .0020 C

.0015 to .0025 C

.0020 to .0030 C

.0030 to .0040 C

.0040 to .0050 C

.0050 to .0060 C

.0000 to .0005 P

.0000 to .0010 P

.0005 to .0010 P

.0005 to .0015 P

.0010 to .0020 P

.0015 to .0025 P

.0020 to .0030 P

.0030 to .0040 P

.0040 to .0050 POther

ABCDEFGHIJKLMNPRSTUZ

Code

Position 9 -Radial Clearance (C)

Radial or Axial Preload (P)

**Position 9 only required when designating special radial play.Standard Radial play is shown intolerance tables, pages 34 - 36.

Note: Radially & axially preloadedbearings meet bore and O.D.tolerances prior to preload.

Series Radial Thickness Width

Type Design Material

Type Description

6*The alphanumeric identification system is used under license.

RADIAL CONTACT, C-TYPEThin Section Ball Bearings

BBore

PARTNUMBER* Ball

Diameterf1

0.0150.0150.0250.0320.0250.0320.0250.0320.0250.0320.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.080

3/323/321/8

5/321/8

5/321/8

5/321/8

5/321/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2

1.00001.50002.00002.00002.50002.50003.00003.00003.50003.50004.00004.00004.00004.00004.00004.00004.25004.25004.25004.25004.25004.25004.50004.50004.50004.50004.50004.50004.75004.75004.75004.75004.75004.75005.00005.00005.00005.00005.00005.00005.50005.50005.50005.50005.50005.5000

1.37501.87502.50002.62503.00003.12503.50003.62504.00004.12504.50004.62504.75005.00005.50006.00004.75004.87505.00005.25005.75006.25005.00005.12505.25005.50006.00006.50005.25005.37505.50005.75006.25006.75005.50005.62505.75006.00006.50007.00006.00006.12506.25006.50007.00007.5000

0.1875 0.1875 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000

1.1411.6412.1882.2342.6882.7343.1883.2343.6883.7344.1884.2344.2814.3754.5634.7504.4384.4844.5314.6254.8135.0004.6884.7344.7814.8755.0635.2504.9384.9845.0315.1255.3135.5005.1885.2345.2815.3755.5635.7505.6885.7345.7815.8756.0636.250

1.2341.7342.3132.3912.8132.8913.3133.3913.8133.8974.3134.3914.4694.6254.9385.2504.5634.6414.7194.8755.1885.5004.8134.8914.9695.1255.4385.7505.0635.1415.2195.3755.6886.0005.3135.3915.4695.6255.9386.2505.8135.8915.9696.1256.4386.750

KAA10CL0*RBCKAA15CL0*RBCKA020CP0*RBCKB020CP0*RBCKA025CP0*RBCKB025CP0*RBCKA030CP0*RBCKB030CP0*RBCKA035CP0*RBCKB035CP0*RBCKA040CP0*RBCKB040CP0*RBCKC040CP0*RBCKD040CP0*RBCKF040CP0*RBCKG040CP0*RBCKA042CP0*RBCKB042CP0*RBCKC042CP0*RBCKD042CP0*RBCKF042CP0*RBCKG042CP0*RBCKA045CP0*RBCKB045CP0*RBCKC045CP0*RBCKD045CP0*RBCKF045CP0*RBCKG045CP0*RBCKA047CP0*RBCKB047CP0*RBCKC047CP0*RBCKD047CP0*RBCKF047CP0*RBCKG047CP0*RBCKA050CP0*RBCKB050CP0*RBCKC050CP0*RBCKD050CP0*RBCKF050CP0*RBCKG050CP0*RBCKA055CP0*RBCKB055CP0*RBCKC055CP0*RBCKD055CP0*RBCKF055CP0*RBCKG055CP0*RBC

KAASeries:Cross Section Size: 3/16"

KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000

Housing FilletLo -Outer RingLi -Inner RingLand DiameterW

WidthD

Outside Diameter

NOMINAL DIMENSIONS IN INCHES

7Refer to the Engineering Data section for load and speed limitations.

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)

LOAD RATINGSRadial (lbf) Thrust (lbf) Moment (lbf - in)

21292723332839334538514335271915544537282015574839302116605041312217635343332318695847362519

0.030.040.100.160.130.200.150.240.180.270.190.300.450.781.903.600.200.310.470.832.003.800.220.330.480.882.104.000.230.340.500.942.204.100.240.380.581.002.304.300.250.410.591.062.504.70

240330540730650880760

1,020880

1,170990

1,3101,5502,4703,9906,4801,0401,3701,6402,5604,2006,4801,1001,4601,7202,7304,4106,9101,1601,5201,8002,8104,6107,3401,2101,6101,8902,9904,8007,7701,3201,7502,0603,2405,1908,210

300350560800610860650920690970720

1,0201,2902,2503,9406,700

7301,0301,3202,2704,0706,700

7501,0601,3502,3504,2107,000

7601,0701,3702,3604,3107,290

7701,1001,3902,4304,3807,570

8001,1301,4402,5104,5407,850

480650

1,0801,4601,3101,7501,5302,0501,7502,3401,9802,6303,1104,9507,980

12,9602,0902,7403,2705,1108,400

12,9602,2002,9203,4405,4608,820

13,8202,3103,0303,6105,6209,220

14,6802,4203,2103,7805,9709,600

15,5502,6503,5004,1106,480

10,37016,410

210350740

1,070970

1,4101,2201,7701,4902,1401,7702,5503,2805,870

10,85019,4401,9002,7303,5506,250

11,81020,4102,0602,9603,8106,820

12,81022,3202,2203,1404,0707,180

13,74024,3002,3503,3904,3407,740

14,62026,3402,6603,8104,9008,720

16,46029,580

16,84011,8508,8908,6507,2707,1106,1506,0405,3305,2504,7104,6404,5704,4404,2104,0004,4404,3804,3204,2104,0003,8104,2104,1604,1004,0003,8103,6404,0003,9503,9003,8103,6403,4803,8103,7603,7203,6403,4803,3303,4803,4403,4003,3303,2003,080

110220490680720990990

1,3601,3201,7801,6802,2702,7204,4507,580

12,9601,8802,5003,0304,8608,400

13,6002,0902,8103,3605,4609,270

15,2002,3103,0703,7005,910

10,14016,8902,5403,4104,0606,570

11,05018,6603,0404,0704,8307,780

12,97021,330

8801,0201,6402,3201,7702,5101,8802,6801,9902,8102,0802,9503,7406,520

11,42019,4402,1103,0003,8306,580

11,81019,4402,1703,0803,9106,820

12,20020,2902,2203,1103,9706,840

12,49021,1302,2403,1904,0407,040

12,71021,9502,3203,2804,1707,270

13,17022,750

RA

DIA

LC

-TY

PE

W

D

B

Lo

Li

to clear f max (4 places)1

DynamicStaticDynamicStaticDynamicStatic

• Large Diameter

• Light Weight

• Small Cross Section

• Snap-Over Ball Separator

8


KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000

PARTNUMBER*


*The alphanumeric identification system is used under license.

f1BBore Housing FilletLo -Outer RingLi -Inner Ring

Land DiameterWWidth

DOutside Diameter

Ball Diameter

KA060CP0*RBCKB060CP0*RBCKC060CP0*RBCKD060CP0*RBCKF060CP0*RBCKG060CP0*RBCKA065CP0*RBCKB065CP0*RBCKC065CP0*RBCKD065CP0*RBCKF065CP0*RBCKG065CP0*RBCKA070CP0*RBCKB070CP0*RBCKC070CP0*RBCKD070CP0*RBCKF070CP0*RBCKG070CP0*RBCKA075CP0*RBCKB075CP0*RBCKC075CP0*RBCKD075CP0*RBCKF075CP0*RBCKG075CP0*RBCKA080CP0*RBCKB080CP0*RBCKC080CP0*RBCKD080CP0*RBCKF080CP0*RBCKG080CP0*RBCKA090CP0*RBCKB090CP0*RBCKC090CP0*RBCKD090CP0*RBCKF090CP0*RBCKG090CP0*RBCKA100CP0*RBCKB100CP0*RBCKC100CP0*RBCKD100CP0*RBCKF100CP0*RBCKG100CP0*RBC

6.50006.62506.75007.00007.50008.00007.00007.12507.25007.50008.00008.50007.50007.62507.75008.00008.50009.00008.00008.12508.25008.50009.00009.50008.50008.62508.75009.00009.5000

10.00009.50009.62509.7500

10.000010.500011.000010.500010.625010.750011.000011.500012.0000

6.00006.00006.00006.00006.00006.00006.50006.50006.50006.50006.50006.50007.00007.00007.00007.00007.00007.00007.50007.50007.50007.50007.50007.50008.00008.00008.00008.00008.00008.00009.00009.00009.00009.00009.00009.0000

10.000010.000010.000010.000010.000010.0000

0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000

6.1886.2346.2816.3756.5636.7506.6886.7346.7816.8757.0637.2507.1887.2347.2817.3757.5637.7507.6887.7347.7817.8758.0638.2508.1888.2348.2818.3758.5638.7509.1889.2349.2819.3759.5639.750

10.18810.23410.28110.37510.56310.750

6.3136.3916.4696.6256.9387.2506.8136.8916.9697.1257.4387.7507.3137.3917.4697.6257.9388.2507.8137.8917.9698.1258.4388.7508.3138.3918.4698.6258.9389.2509.3139.3919.4699.6259.938

10.25010.31310.39110.46910.62510.93811.250

0.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.080

1/8 5/321/8

5/321/8

5/321/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2


9

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)


W

D

B

Lo

Li


RA

DIA

LC

-TY

PE

Refer to the Engineering Data section for load and speed limitations.

Static Dynamic Static Dynamic Static Dynamic756351392721816855422922877359453124937863483325998367513527

1119375573930

12310383634333

0.280.440.631.162.705.100.300.470.681.222.905.400.310.500.731.313.205.800.340.530.781.413.406.100.380.570.841.533.506.500.440.660.941.723.907.200.500.731.061.884.307.90

1,4401,9002,2203,5005,5709,0701,5502,0402,3903,7505,9509,4501,6602,1902,5604,0106,340

10,2601,7702,3302,7304,2706,720

10,6401,8802,4802,9004,5207,100

11,4402,1102,7703,2305,0307,870

12,6302,3303,0603,5705,5408,630

13,810

2,8703,7904,4506,990

11,13018,1403,1004,0804,7907,500

11,90018,9103,3204,3805,1208,020

12,67020,5203,5404,6705,4508,530

13,44021,2703,7704,9605,7909,040

14,20022,8904,2105,5406,470

10,06015,74025,2704,6606,1307,140

11,08017,26027,620

3,0204,2705,5109,740

18,26034,0503,3104,7306,110

10,76020,16037,0503,6605,2606,710

11,87022,13041,2104,0005,8007,300

12,99024,10044,1904,3506,1907,990

14,09026,07048,5205,0507,1909,410

16,39030,32056,3905,8608,350

10,73018,68034,53064,040

3,2003,1703,1403,0802,9602,8602,9602,9402,9102,8602,7602,6702,7602,7402,7102,6702,5802,5002,5802,5602,5402,5002,4202,3502,4202,4102,3902,3502,2902,2202,1602,1502,1302,1102,0502,0001,9501,9401,9301,9001,8601,820

3,5904,7905,6709,090

15,03025,3904,1805,5606,580

10,50017,25028,3604,8106,4007,550

12,03019,64032,8405,4907,3008,590

13,65022,17036,1606,2208,2409,700

15,37024,84041,2007,800

10,32012,12019,12030,69050,5409,560

12,63014,81023,27037,11060,760

2,4203,3804,3207,500

13,53024,3202,4503,4704,4407,680

13,90024,7002,5203,6004,5507,910

14,28025,7502,5803,7104,6408,120

14,61025,9902,6403,7204,7708,290

14,90026,9602,7303,8605,0208,620

15,55028,2002,8604,0505,1708,900

16,06029,110

8301,1701,4902,5804,6608,390

8501,2001,5302,6504,7908,520

8701,2401,5702,7304,9208,880

8901,2801,6002,8005,0408,960

9101,2801,6502,8605,1409,300

9401,3301,7302,9705,3609,720

9901,4001,7803,0705,540

10,040

• Large Diameter

• Light Weight



10


KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000

PARTNUMBER*

11.000011.000011.000011.000011.000011.000012.000012.000012.000012.000012.000012.000014.000014.000014.000014.000014.000016.000016.000016.000016.000016.000018.000018.000018.000018.000018.000020.000020.000020.000020.000020.000025.000025.000025.000025.000030.000030.000030.000030.000035.000035.000040.000040.0000

0.0250.0320.0400.0600.0800.0800.0250.0320.0400.0600.0800.0800.0320.0400.0600.0800.0800.0320.0400.0600.0800.0800.0320.0400.0600.0800.0800.0320.0400.0600.0800.0800.0400.0600.0800.0800.0400.0600.0800.0800.0800.0800.0800.080

11.31311.39111.46911.62511.93812.25012.31312.39112.46912.62512.93813.25014.39114.46914.62514.93815.25016.39116.46916.62516.93817.25018.39118.46918.62518.93819.25020.39120.46920.62520.93821.25025.46925.62525.93826.25030.46930.62530.93831.25035.93836.25040.93841.250



KA110CP0*RBCKB110CP0*RBCKC110CP0*RBCKD110CP0*RBCKF110CP0*RBCKG110CP0*RBCKA120CP0*RBCKB120CP0*RBCKC120CP0*RBCKD120CP0*RBCKF120CP0*RBCKG120CP0*RBCKB140CP0*RBCKC140CP0*RBCKD140CP0*RBCKF140CP0*RBCKG140CP0*RBCKB160CP0*RBCKC160CP0*RBCKD160CP0*RBCKF160CP0*RBCKG160CP0*RBCKB180CP0*RBCKC180CP0*RBCKD180CP0*RBCKF180CP0*RBCKG180CP0*RBCKB200CP0*RBCKC200CP0*RBCKD200CP0*RBCKF200CP0*RBCKG200CP0*RBCKC250CP0*RBCKD250CP0*RBCKF250CP0*RBCKG250CP0*RBCKC300CP0*RBCKD300CP0*RBCKF300CP0*RBCKG300CP0*RBCKF350CP0*RBCKG350CP0*RBCKF400CP0*RBCKG400CP0*RBC


Land DiameterWWidth

DOutside Diameter

Ball Diameter

11.500011.625011.750012.000012.500013.000012.500012.625012.750013.000013.500014.000014.625014.750015.000015.500016.000016.625016.750017.000017.500018.000018.625018.750019.000019.500020.000020.625020.750021.000021.500022.000025.750026.000026.500027.000030.750031.000031.500032.000036.500037.000041.500042.0000

11.18811.23411.28111.37511.56311.75012.18812.23412.28112.37512.56312.75014.23414.28114.37514.56314.75016.23416.28116.37516.56316.75018.23418.28118.37518.56318.75020.23420.28120.37520.56320.75025.28125.37525.56325.75030.28130.37530.56330.75035.56335.75040.56340.750

0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3750 0.5000 0.7500 1.0000 0.3750 0.5000 0.7500 1.0000 0.7500 1.0000 0.7500 1.0000

1/8 5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

3/161/4 3/8 1/2

3/161/4 3/8 1/2 3/8 1/2 3/8 1/2


11

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)



0.520.751.162.064.808.600.560.831.252.255.209.301.051.522.736.00

10.801.201.733.107.10

12.301.351.943.487.90

13.701.502.163.858.90

15.802.694.79

10.9019.503.215.73

13.0023.3015.1027.1017.2030.80

2,5603,3503,9006,0509,400

14,9902,7803,6404,2406,570

10,17016,1704,2204,9107,590

11,70018,5404,8105,5808,610

13,24020,9005,3906,2509,630

14,78023,2705,9706,920

10,66016,31025,6208,600

13,20020,14031,55010,28015,77023,98037,47027,81043,34031,65049,290

1,0301,4201,8203,1805,730

10,3601,0601,4701,8903,3205,930

10,6901,5602,0003,4606,240

11,2801,6602,0903,6206,550

11,8201,7402,2003,7506,890

12,3001,8102,3003,9307,090

12,6802,5204,2307,550

13,8302,7604,6408,150

14,6608,610

15,2109,150

16,230

2,9804,1305,2809,220

16,61030,0603,0804,2705,4709,630

17,20030,9904,5205,800

10,03018,09032,7104,8006,050

10,50019,00034,2705,0506,390

10,87019,98035,6605,2606,670

11,38020,57036,7807,300

12,26021,91040,1008,000

13,44023,62042,51024,97044,12026,53047,080

11,50015,16017,75027,83044,16071,94013,62017,94020,98032,84051,86084,10024,18028,24044,02069,050

111,25031,37036,55056,85088,690

142,15039,49045,96071,270

110,840176,87048,52056,43087,400

135,390215,21087,290

134,690207,390328,150124,910192,420294,970464,640397,620624,100515,930808,420

6,7009,340

12,02021,21039,04072,1407,550

10,53013,55024,07043,85080,58012,93016,68029,10053,38098,14015,67019,83034,66063,630

116,53018,49023,48040,20074,910

135,51021,37027,17046,68085,380

154,49037,07062,530

112,830208,54048,61082,010

145,270263,580178,510317,650216,240386,040

1,7801,7701,7601,7401,7001,6701,6301,6201,6201,6001,5701,5401,4001,3901,3801,3601,3301,2301,2201,2101,1901,1801,0901,0901,0801,0701,050

980980980960950790780780770660660650650560560490490

W

D

B

Lo

Li


RA

DIA

LC

-TY

PE

DynamicStaticDynamicStaticDynamicStatic13511391694736

14712399755139

143115875945

163131996751

1831471117557

2031631238363

20315310378

24318312393

143108163123

5,1106,7007,800

12,10018,79029,9805,5607,2908,480

13,14020,34032,3508,4509,820

15,18023,41037,0809,620

11,16017,23026,48041,81010,78012,51019,26029,56046,54011,94013,85021,32032,62051,24017,20026,41040,27063,11020,56031,54047,96074,94055,61086,68063,30098,590

• Large Diameter

• Light Weight



12*The alphanumeric identification system is used under license.

ANGULAR CONTACT, A-TYPEThin Section Ball Bearings

PARTNUMBER*

1.0000 1.5000 2.0000 2.0000 2.5000 2.5000 3.0000 3.0000 3.5000 3.5000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.2500 4.2500 4.2500 4.2500 4.2500 4.2500 4.5000 4.5000 4.5000 4.5000 4.5000 4.5000 4.7500 4.7500 4.7500 4.7500 4.7500 4.7500 5.0000 5.0000 5.0000 5.0000 5.0000 5.0000 5.5000 5.5000 5.5000 5.5000 5.5000 5.5000

1.3750 1.8750 2.5000 2.6250 3.0000 3.1250 3.5000 3.6250 4.0000 4.1250 4.5000 4.6250 4.7500 5.0000 5.5000 6.0000 4.7500 4.8750 5.0000 5.2500 5.7500 6.2500 5.0000 5.1250 5.2500 5.5000 6.0000 6.5000 5.2500 5.3750 5.5000 5.7500 6.2500 6.7500 5.5000 5.6250 5.7500 6.0000 6.5000 7.0000 6.0000 6.1250 6.2500 6.5000 7.0000 7.5000

0.1875 0.1875 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000

0.015 0.015 0.025 0.032 0.025 0.032 0.025 0.032 0.025 0.032 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.0800.080

3/323/321/8

5/321/8

5/321/8

5/321/8

5/321/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2

1.141 1.641 2.188 2.234 2.688 2.734 3.188 3.234 3.688 3.734 4.188 4.234 4.281 4.375 4.563 4.750 4.438 4.484 4.531 4.625 4.813 5.000 4.688 4.734 4.781 4.875 5.063 5.250 4.938 4.984 5.031 5.125 5.313 5.500 5.188 5.234 5.281 5.375 5.563 5.750 5.688 5.734 5.781 5.875 6.063 6.250

1.234 1.734 2.313 2.391 2.813 2.891 3.313 3.391 3.813 3.891 4.313 4.391 4.469 4.625 4.938 5.250 4.563 4.641 4.719 4.875 5.188 5.500 4.813 4.891 4.969 5.125 5.438 5.750 5.063 5.141 5.219 5.375 5.688 6.000 5.313 5.391 5.469 5.625 5.938 6.250 5.813 5.891 5.969 6.125 6.438 6.750

1.235 1.735 2.375 2.469 2.875 2.969 3.375 3.469 3.875 3.969 4.375 4.469 4.563 4.750 5.125 5.500 4.625 4.719 4.813 5.000 5.375 5.750 4.875 4.969 5.063 5.250 5.625 6.000 5.125 5.219 5.313 5.500 5.875 6.250 5.375 5.469 5.563 5.750 6.125 6.500 5.875 5.969 6.063 6.250 6.625 7.000

KAA KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000

Series:Cross Section Size: 3/16"

NOMINAL DIMENSIONS IN INCHESf1B

Bore Housing FilletLo -Outer Ring LS -Counter BoreLi -Inner RingLand DiameterW

WidthD

Outside DiameterBall

DiameterKAA10AG0*RBCKAA15AG0*RBCKA020AR0*RBCKB020AR0*RBCKA025AR0*RBCKB025AR0*RBCKA030AR0*RBCKB030AR0*RBCKA035AR0*RBCKB035AR0*RBCKA040AR0*RBCKB040AR0*RBCKC040AR0*RBCKD040AR0*RBCKF040AR0*RBCKG040AR0*RBCKA042AR0*RBCKB042AR0*RBCKC042AR0*RBCKD042AR0*RBCKF042AR0*RBCKG042AR0*RBCKA045AR0*RBCKB045AR0*RBCKC045AR0*RBCKD045AR0*RBCKF045AR0*RBCKG045AR0*RBCKA047AR0*RBCKB047AR0*RBCKC047AR0*RBCKD047AR0*RBCKF047AR0*RBCKG047AR0*RBCKA050AR0*RBCKB050AR0*RBCKC050AR0*RBCKD050AR0*RBCKF050AR0*RBCKG050AR0*RBCKA055AR0*RBCKB055AR0*RBCKC055AR0*RBCKD055AR0*RBCKF055AR0*RBCKG055AR0*RBC

13

AN

GU

LA

RA

-TY

PE

W

D

B

L

Ls

i

Lo



LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)


28403631443852446051685849362620726152382721766455402922806858423023847161443124927866483426

0.030.040.100.160.130.200.150.240.180.270.190.300.450.781.903.600.200.310.470.832.003.800.220.330.480.882.104.000.230.340.500.942.204.100.240.380.581.002.304.300.250.410.591.062.504.70

280390620840750

1,020880

1,1701,0101,3501,1401,5301,8702,8304,7207,6801,2001,6001,9802,9804,8808,0701,2601,6802,0903,1305,2208,4501,3301,7802,2003,2705,3808,8301,3901,8502,3103,4205,5409,2201,5202,0302,4903,7206,0409,940

330380600850640920680970720

1,020750

1,0801,4102,0704,3507,340

7701,0901,4402,4104,3907,580

7801,1201,4702,4604,5507,820

8001,1401,5002,5104,6108,060

8101,1601,5402,5504,6508,290

8301,2001,5602,6404,8208,610

8301,1601,8602,5302,2503,0602,6303,5103,0204,0503,4104,5805,6108,500

14,16023,0503,6004,8005,9408,930

14,63024,2003,7905,0306,2709,380

15,65025,3503,9905,3306,5909,820

16,15026,5004,1805,5606,920

10,26016,63027,6604,5706,0907,460

11,15018,12029,810

9601,1001,7302,4601,8602,6801,9802,8002,0702,9702,1803,1304,0806,020

12,62021,2902,2403,1704,1806,990

12,74021,9902,2603,2404,2607,140

13,20022,6902,3103,2904,3407,280

13,38023,3702,3603,3504,4507,400

13,48024,0402,4103,4804,5407,660

13,98024,960

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

16,84011,8508,8908,6507,2707,1106,1506,0405,3305,2504,7104,6404,5704,4404,2104,0004,4404,3804,3204,2104,0003,8104,2104,1604,1004,0003,8103,6404,0003,9503,9003,8103,6403,4803,8103,7603,7203,6403,4803,3303,4803,4403,4003,3303,2003,080

DynamicStaticDynamicStaticDynamicStatic

• Large Diameter

• Light Weight


• Circular Pocket Ball Separator

14

KAA KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000


PARTNUMBER*

0.2500 0.3125 0.37500.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000

0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.0320.040 0.060 0.080 0.080

6.188 6.234 6.281 6.375 6.563 6.750 6.688 6.734 6.781 6.875 7.063 7.250 7.188 7.234 7.281 7.375 7.563 7.750 7.688 7.734 7.781 7.875 8.063 8.250 8.188 8.234 8.281 8.375 8.563 8.750 9.188 9.234 9.281 9.375 9.563 9.750

10.188 10.234 10.281 10.375 10.563 10.750

6.313 6.391 6.469 6.625 6.938 7.250 6.813 6.891 6.969 7.125 7.438 7.750 7.313 7.391 7.469 7.625 7.938 8.250 7.813 7.891 7.969 8.125 8.438 8.750 8.313 8.391 8.469 8.625 8.938 9.250 9.313 9.391 9.469 9.625 9.938

10.250 10.313 10.391 10.469 10.625 10.938 11.250

ANGULAR CONTACT A-TYPEThin Section Ball Bearings

KA060AR0*RBCKB060AR0*RBCKC060AR0*RBCKD060AR0*RBCKF060AR0*RBCKG060AR0*RBCKA065AR0*RBCKB065AR0*RBCKC065AR0*RBCKD065AR0*RBCKF065AR0*RBCKG065AR0*RBCKA070AR0*RBCKB070AR0*RBCKC070AR0*RBCKD070AR0*RBCKF070AR0*RBCKG070AR0*RBCKA075AR0*RBCKB075AR0*RBCKC075AR0*RBCKD075AR0*RBCKF075AR0*RBCKG075AR0*RBCKA080AR0*RBCKB080AR0*RBCKC080AR0*RBCKD080AR0*RBCKF080AR0*RBCKG080AR0*RBCKA090AR0*RBCKB090AR0*RBCKC090AR0*RBCKD090AR0*RBCKF090AR0*RBCKG090AR0*RBCKA100AR0*RBCKB100AR0*RBCKC100AR0*RBCKD100AR0*RBCKF100AR0*RBCKG100AR0*RBC




WidthD


Diameter6.5000 6.6250 6.7500 7.0000 7.5000 8.0000 7.0000 7.1250 7.2500 7.5000 8.0000 8.5000 7.5000 7.6250 7.7500 8.0000 8.5000 9.0000 8.0000 8.1250 8.2500 8.5000 9.0000 9.5000 8.5000 8.6250 8.7500 9.0000 9.5000

10.0000 9.5000 9.6250 9.7500

10.0000 10.5000 11.0000 10.5000 10.6250 10.7500 11.0000 11.5000 12.0000

6.375 6.469 6.563 6.750 7.125 7.500 6.875 6.969 7.063 7.250 7.625 8.000 7.375 7.469 7.563 7.750 8.125 8.500 7.875 7.969 8.063 8.250 8.625 9.000 8.375 8.469 8.563 8.750 9.125 9.500 9.375 9.469 9.563 9.750

10.125 10.500 10.375 10.469 10.563 10.750 11.125 11.500

1/8 5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2

6.0000 6.0000 6.0000 6.0000 6.0000 6.0000 6.5000 6.5000 6.5000 6.5000 6.5000 6.5000 7.0000 7.0000 7.0000 7.0000 7.0000 7.0000 7.5000 7.5000 7.5000 7.5000 7.5000 7.5000 8.0000 8.0000 8.0000 8.0000 8.0000 8.0000 9.0000 9.0000 9.0000 9.0000 9.0000 9.0000

10.0000 10.0000 10.0000 10.0000 10.0000 10.0000

15

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb) Radial (lbf) Thrust (lbf) Moment (lbf - in)

0.280.440.631.162.705.100.300.470.681.222.905.400.310.500.731.313.205.800.340.530.781.413.406.100.380.570.841.533.506.500.440.660.941.723.907.200.500.731.061.884.307.90

1,6502,2102,7104,0106,550

10,6401,7802,3602,9204,3007,040

11,3401,9102,5303,1104,6007,540

12,0502,0402,7103,3204,9007,870

12,7402,1702,8903,5405,1908,380

13,4502,4303,2103,9405,7809,370

14,8502,6803,5704,3806,370

10,20016,250

8601,2401,6202,7205,0108,860

8901,2601,6702,7805,1409,110

9001,3001,7202,8505,2909,370

9201,3301,7502,9405,3809,560

9601,3601,8002,9905,5209,800

9901,4101,8603,1005,780

10,1901,0301,4801,9203,2405,980

10,560

4,9606,6208,120

12,04019,65031,9105,3507,0708,770

12,91021,13034,0105,7307,6009,320

13,80022,63036,1406,1108,1309,970

14,70023,62038,2106,5108,660

10,63015,58025,13040,3507,2809,640

11,82017,34028,12044,5508,050

10,71013,13019,11030,61048,750

2,5003,6004,6907,880

14,53025,7002,5803,6504,8308,070

14,92026,4102,6003,7604,9808,260

15,35027,1602,6603,8605,0908,520

15,59027,7102,7703,9505,2108,670

16,02028,4302,8604,0805,4009,000

16,76029,5403,0004,2905,5709,390

17,33030,620

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

3,2003,1703,1403,0802,9602,8602,9602,9402,9102,8602,7602,6702,7602,7402,7102,6702,5802,5002,5802,5602,5402,5002,4202,3502,4202,4102,3902,3502,2902,2202,1602,1502,1302,1102,0502,0001,9501,9401,9301,9001,8601,820

LOAD RATINGS

W

D

B

L

Ls

i

Lo


AN

GU

LA

RA

-TY

PE



1089178564030

1169883604332

12410589644534

13211295684836

148125106765440

164139118845944

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

• Large Diameter

• Light Weight



16

KAA KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000


PARTNUMBER*

11.0000 11.0000 11.0000 11.0000 11.0000 11.0000 12.0000 12.0000 12.0000 12.0000 12.0000 12.0000 14.0000 14.0000 14.0000 14.0000 14.0000 16.0000 16.0000 16.0000 16.0000 16.0000 18.0000 18.0000 18.0000 18.0000 18.0000 20.0000 20.0000 20.0000 20.0000 20.0000 25.0000 25.0000 25.0000 25.0000 30.0000 30.0000 30.0000 30.0000 35.0000 35.0000 40.0000 40.0000

11.5000 11.6250 11.7500 12.0000 12.5000 13.0000 12.5000 12.6250 12.7500 13.0000 13.5000 14.0000 14.6250 14.7500 15.0000 15.5000 16.0000 16.6250 16.7500 17.0000 17.5000 18.0000 18.6250 18.7500 19.0000 19.5000 20.0000 20.6250 20.7500 21.0000 21.5000 22.0000 25.7500 26.0000 26.5000 27.0000 30.7500 31.0000 31.5000 32.0000 36.5000 37.0000 41.5000 42.0000

0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.0320.040 0.060 0.080 0.080 0.0320.040 0.060 0.080 0.080 0.032 0.040 0.060 0.080 0.080 0.032 0.040 0.060 0.080 0.080 0.040 0.060 0.080 0.080 0.040 0.060 0.080 0.080 0.080 0.080 0.080 0.080

11.313 11.391 11.469 11.625 11.938 12.250 12.313 12.391 12.469 12.625 12.938 13.250 14.391 14.469 14.625 14.938 15.250 16.391 16.469 16.625 16.938 17.250 18.391 18.469 18.625 18.938 19.250 20.391 20.469 20.625 20.938 21.250 25.469 25.625 25.938 26.250 30.469 30.625 30.938 31.250 35.938 36.250 40.938 41.250

11.375 11.469 11.563 11.750 12.125 12.500 12.375 12.469 12.563 12.750 13.125 13.500 14.469 14.563 14.750 15.125 15.500 16.469 16.563 16.750 17.125 17.500 18.469 18.563 18.750 19.125 19.500 20.469 20.563 20.750 21.125 21.500 25.563 25.750 26.125 26.500 30.563 30.750 31.125 31.500 36.125 36.500 41.125 41.500

ANGULAR CONTACT, A-TYPEThin Section Ball Bearings


KA110AR0*RBCKB110AR0*RBCKC110AR0*RBCKD110AR0*RBCKF110AR0*RBCKG110AR0*RBCKA120AR0*RBCKB120AR0*RBCKC120AR0*RBCKD120AR0*RBCKF120AR0*RBCKG120AR0*RBCKB140AR0*RBCKC140AR0*RBCKD140AR0*RBCKF140AR0*RBCKG140AR0*RBCKB160AR0*RBCKC160AR0*RBCKD160AR0*RBCKF160AR0*RBCKG160AR0*RBCKB180AR0*RBCKC180AR0*RBCKD180AR0*RBCKF180AR0*RBCKG180AR0*RBCKB200AR0*RBCKC200AR0*RBCKD200AR0*RBCKF200AR0*RBCKG200AR0*RBCKC250AR0*RBCKD250AR0*RBCKF250AR0*RBCKG250AR0*RBCKC300AR0*RBCKD300AR0*RBCKF300AR0*RBCKG300AR0*RBCKF350AR0*RBCKG350AR0*RBCKF400AR0*RBCKG400AR0*RBC



WidthD


Diameter

11.188 11.234 11.281 11.375 11.563 11.750 12.188 12.234 12.281 12.375 12.563 12.750 14.234 14.281 14.375 14.563 14.750 16.234 16.281 16.375 16.563 16.750 18.234 18.281 18.375 18.563 18.750 20.234 20.281 20.375 20.563 20.750 25.281 25.375 25.563 25.750 30.281 30.375 30.563 30.750 35.563 35.750 40.563 40.750

0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3750 0.5000 0.7500 1.00000.3750 0.5000 0.7500 1.00000.75001.00000.75001.0000

1/8 5/323/16 1/43/8 1/21/8

5/323/16 1/43/81/2

5/32 3/16 1/4 3/81/2

5/32 3/16 1/4 3/81/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

3/16 1/43/81/2

3/16 1/4 3/8 1/23/81/2 3/8 1/2

17

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)


0.520.751.162.064.808.600.560.831.252.255.209.301.051.522.736.00

10.801.201.733.107.10

12.301.351.943.487.90

13.701.502.163.858.90

15.802.694.79

10.9019.503.215.73

13.0023.3015.1027.1017.2030.80

2,9403,8904,7806,960

11,20017,6603,2004,2505,1807,550

12,02019,0604,9006,0108,730

13,86021,8505,5906,8409,920

15,68024,6606,2707,680

11,09017,68027,4506,9508,470

12,27019,50030,26010,55015,23023,98037,27012,62018,19028,63044,26033,30051,33037,90058,300

1,0701,5001,9903,3106,160

10,9201,1001,5602,0603,4306,320

11,2301,6702,1803,5606,720

11,7701,7702,2703,8007,000

12,3601,8602,3903,9307,310

12,8401,9402,4804,1107,510

13,3902,7904,5108,110

14,2803,0604,9408,740

15,0809,420

16,3109,740

17,000

8,83011,68014,33020,88033,59052,9809,600

12,74015,53022,66036,07057,17014,71018,04026,18041,58065,54016,76020,53029,76047,04073,98018,80023,03033,27053,03082,36020,84025,42036,82058,49090,79031,66045,68071,930

111,81037,87054,56085,880

132,78099,890

153,990113,710174,910

3,1004,3505,7809,600

17,87031,6603,2004,5105,9809,950

18,34032,5704,8406,330

10,34019,49034,1505,1506,580

11,03020,31035,8505,4106,920

11,39021,20037,2305,6307,200

11,92021,77038,8308,100

13,07023,50041,4208,870

14,32025,33043,74027,31047,29028,23049,300

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A

N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A


W

D

B

L

Ls

i

Lo


AN

GU

LA

RA

-TY

PE

DynamicStaticDynamicStaticDynamicStatic180152129926548

1961661401007052

1921631168160

2191861329268

24620914810476

27323116411584

288204142104345244170124198144226164

1,7801,7701,7601,7401,7001,6701,6301,6201,6201,6001,5701,5401,4001,3901,3801,3601,3301,2301,2201,2101,1901,1801,0901,0901,0801,0701,050

980980980960950790780780770660660650650560560490490

• Large Diameter

• Light Weight



18

KAA KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000


4-POINT CONTACT, X-TYPE Thin Section Ball Bearings

PARTNUMBER*

1.00001.5000 2.0000 2.0000 2.5000 2.5000 3.0000 3.0000 3.5000 3.5000 4.0000 4.0000 4.0000 4.0000 4.0000 4.0000 4.2500 4.2500 4.2500 4.2500 4.2500 4.2500 4.5000 4.5000 4.5000 4.5000 4.5000 4.5000 4.7500 4.7500 4.7500 4.7500 4.7500 4.7500 5.0000 5.0000 5.0000 5.0000 5.0000 5.0000 5.5000 5.5000 5.5000 5.5000 5.5000 5.5000

1.3750 1.8750 2.5000 2.6250 3.0000 3.1250 3.5000 3.6250 4.0000 4.1250 4.5000 4.6250 4.7500 5.0000 5.5000 6.0000 4.7500 4.8750 5.0000 5.2500 5.7500 6.2500 5.0000 5.1250 5.2500 5.5000 6.0000 6.5000 5.2500 5.3750 5.5000 5.7500 6.2500 6.7500 5.5000 5.6250 5.7500 6.0000 6.5000 7.0000 6.0000 6.1250 6.2500 6.5000 7.0000 7.5000

0.1875 0.1875 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000

0.015 0.015 0.025 0.032 0.025 0.032 0.025 0.032 0.025 0.032 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080

KAA10XL0*RBCKAA15XL0*RBCKA020XP0*RBCKB020XP0*RBCKA025XP0*RBCKB025XP0*RBCKA030XP0*RBCKB030XP0*RBCKA035XP0*RBCKB035XP0*RBCKA040XP0*RBCKB040XP0*RBCKC040XP0*RBCKD040XP0*RBCKF040XP0*RBCKG040XP0*RBCKA042XP0*RBCKB042XP0*RBCKC042XP0*RBCKD042XP0*RBCKF042XP0*RBCKG042XP0*RBCKA045XP0*RBCKB045XP0*RBCKC045XP0*RBCKD045XP0*RBCKF045XP0*RBCKG045XP0*RBCKA047XP0*RBCKB047XP0*RBCKC047XP0*RBCKD047XP0*RBCKF047XP0*RBCKG047XP0*RBCKA050XP0*RBCKB050XP0*RBCKC050XP0*RBCKD050XP0*RBCKF050XP0*RBCKG050XP0*RBCKA055XP0*RBCKB055XP0*RBCKC055XP0*RBCKD055XP0*RBCKF055XP0*RBCKG055XP0*RBC



Land DiameterWWidth

DOutside Diameter

Ball Diameter

1.141 1.641 2.188 2.234 2.688 2.734 3.188 3.234 3.688 3.734 4.188 4.234 4.281 4.375 4.563 4.750 4.438 4.484 4.531 4.625 4.813 5.000 4.688 4.734 4.781 4.875 5.063 5.250 4.938 4.984 5.031 5.125 5.313 5.500 5.188 5.234 5.281 5.375 5.563 5.750 5.688 5.734 5.781 5.875 6.0636.250

1.234 1.734 2.313 2.391 2.813 2.891 3.313 3.391 3.813 3.891 4.313 4.391 4.469 4.625 4.938 5.250 4.563 4.641 4.719 4.875 5.188 5.500 4.813 4.891 4.969 5.125 5.438 5.750 5.063 5.141 5.219 5.375 5.688 6.000 5.313 5.391 5.469 5.625 5.938 6.250 5.813 5.891 5.969 6.125 6.438 6.750

3/323/321/8

5/321/8

5/321/8

5/321/8

5/321/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2


19

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)


0.030.040.100.160.130.200.150.240.180.270.190.300.450.781.903.600.200.310.470.832.003.800.220.330.480.882.104.000.230.340.500.942.204.100.240.380.581.002.304.300.250.410.591.062.504.70

210280460630560750660880750

1,000850

1,1301,3402,1203,4505,610

9001,1801,4102,1903,6105,610

9501,2601,4802,3403,7805,9801,0001,3101,5502,4203,9506,3601,0501,3801,6302,5704,1106,7301,1401,5101,7702,7904,4407,070

270310490700530750560800590840620880

1,1201,9603,5306,060

640890

1,1501,9703,6006,060

640920

1,1702,0303,6706,330

660930

1,1902,0503,7506,590

670950

1,2202,1103,8106,840

690990

1,2502,1803,9306,980

630840

1,3901,8801,6802,2601,9702,6302,2603,0102,5603,3904,0106,370

10,35016,8302,7003,5404,2306,580

10,84016,8302,8403,7704,4407,030

11,34017,9502,9903,9204,6607,250

11,85019,0803,1404,1504,8807,700

12,34020,2003,4304,5305,3108,370

13,32021,210

680770

1,2301,7401,3201,8801,4101,9901,4802,1001,5502,2102,8104,8908,830

15,1501,5902,2302,8704,9208,990

15,1501,6102,3002,9205,0809,180

15,8201,6502,3102,9705,1309,380

16,4701,6802,3803,0405,2709,520

17,1101,7202,4603,1205,4509,820

17,460

150280630870930

1,2701,2801,7501,7002,3002,1702,9303,5105,7309,830

16,8302,4303,2303,9106,250

10,84017,6702,7003,6304,3307,030

11,90019,7502,9903,9704,7807,610

13,03021,9403,2904,4105,2508,470

14,19024,2403,9405,2606,240

10,04016,66027,580

160260550800730

1,060920

1,3201,1101,6001,3201,9002,4604,4008,390

15,1501,4302,0402,6504,6708,990

15,9101,5302,2202,8505,0809,640

17,4001,6502,3403,0405,380

10,32018,9401,7602,5203,2705,800

10,95020,5301,9702,8603,6606,540

12,27022,700

10,1107,1105,3305,1904,3604,2703,6903,6203,2003,1502,8202,7802,7402,6702,5302,4002,6702,6302,5902,5302,4002,2902,5302,4902,4602,4002,2902,1802,4002,3702,3402,2902,1802,0902,2902,2602,2302,1802,0902,0002,0902,0602,0402,0001,9201,850

W

D

B

L

Lo

i

1to clear f max (4 places)

4-PT.

X-T

YP

E



• Large Diameter

• Light Weight



20

KAA KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000


PARTNUMBER*

4-POINT CONTACT X-TYPEThin Section Ball Bearings


KA060XP0*RBCKB060XP0*RBCKC060XP0*RBCKD060XP0*RBCKF060XP0*RBCKG060XP0*RBCKA065XP0*RBCKB065XP0*RBCKC065XP0*RBCKD065XP0*RBCKF065XP0*RBCKG065XP0*RBCKA070XP0*RBCKB070XP0*RBCKC070XP0*RBCKD070XP0*RBCKF070XP0*RBCKG070XP0*RBCKA075XP0*RBCKB075XP0*RBCKC075XP0*RBCKD075XP0*RBCKF075XP0*RBCKG075XP0*RBCKA080XP0*RBCKB080XP0*RBCKC080XP0*RBCKD080XP0*RBCKF080XP0*RBCKG080XP0*RBCKA090XP0*RBCKB090XP0*RBCKC090XP0*RBCKD090XP0*RBCKF090XP0*RBCKG090XP0*RBCKA100XP0*RBCKB100XP0*RBCKC100XP0*RBCKD100XP0*RBCKF100XP0*RBCKG100XP0*RBC


Land DiameterWWidth

DOutside Diameter

Ball Diameter

6.0000 6.0000 6.0000 6.0000 6.0000 6.0000 6.5000 6.5000 6.5000 6.5000 6.5000 6.5000 7.0000 7.0000 7.0000 7.0000 7.0000 7.0000 7.5000 7.5000 7.5000 7.5000 7.5000 7.5000 8.0000 8.0000 8.0000 8.0000 8.0000 8.0000 9.0000 9.0000 9.0000 9.0000 9.0000 9.0000

10.0000 10.0000 10.0000 10.0000 10.0000 10.0000

6.5000 6.6250 6.7500 7.0000 7.5000 8.0000 7.0000 7.1250 7.2500 7.5000 8.0000 8.5000 7.5000 7.6250 7.7500 8.0000 8.5000 9.0000 8.0000 8.1250 8.2500 8.5000 9.0000 9.5000 8.5000 8.6250 8.7500 9.0000 9.5000

10.0000 9.5000 9.6250 9.7500

10.0000 10.5000 11.0000 10.5000 10.6250 10.7500 11.0000 11.5000 12.0000

0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000

6.188 6.234 6.281 6.375 6.563 6.750 6.688 6.734 6.781 6.875 7.063 7.250 7.188 7.234 7.281 7.375 7.563 7.750 7.688 7.734 7.781 7.875 8.063 8.250 8.188 8.234 8.281 8.375 8.563 8.750 9.188 9.234 9.281 9.375 9.563 9.750

10.188 10.234 10.281 10.375 10.563 10.750

6.313 6.391 6.469 6.625 6.938 7.250 6.813 6.891 6.969 7.125 7.438 7.750 7.313 7.391 7.469 7.625 7.938 8.250 7.813 7.891 7.969 8.125 8.438 8.750 8.313 8.391 8.469 8.6258.938 9.250 9.313 9.391 9.469 9.625 9.938

10.250 10.313 10.391 10.469 10.625 10.938 11.250

0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080

1/8 5/323/16 1/43/8 1/21/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2


21

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)


1,2401,6401,9203,0104,7807,7701,3401,7602,0603,2305,1108,1001,4301,8902,2103,4505,4408,8001,5302,0102,3503,6705,7709,1201,6302,1402,5003,8906,1109,8201,8202,3902,7904,3306,770

10,8402,0102,6503,0804,7807,440

11,870

W

D

B

L

Lo

i


4-PT.

X-T

YP

E


Static Dynamic Static Dynamic Static Dynamic

756351392721816855422922877359453124937863483325998367513527

1119375573930

12310383634333

7101,0201,2902,2404,0607,320

7301,0401,3202,3004,1507,410

7401,0701,3702,3504,2607,730

7601,0901,3902,4304,3707,790

7901,1201,4202,4704,4708,090

8101,1501,4802,5604,6508,410

8501,2101,5202,6704,8408,720

3,7204,9105,7509,030

14,34023,3004,0105,2806,1809,680

15,32024,2904,3005,6606,630

10,35016,31026,3904,5906,0407,060

11,02017,32027,3504,8806,4207,490

11,68018,32029,4705,4607,1808,370

13,00020,31032,5306,0407,9409,230

14,33022,31035,600

1,9201,9001,8801,8501,7801,7101,7801,7601,7501,7101,6601,6001,6601,6401,6301,6001,5501,5001,5501,5401,5201,5001,4501,4101,4501,4401,4301,4101,3701,3301,3001,2901,2801,2601,2301,2001,1701,1601,1601,1401,1201,090

1,7802,5403,2205,610

10,15018,2901,8402,5903,3005,740

10,38018,5201,8502,6603,4205,880

10,64019,3301,8902,7303,4806,060

10,93019,4601,9702,7903,5606,170

11,19020,2302,0402,8903,6906,410

11,63021,0202,1303,0303,7906,680

12,10021,790

0.280.440.631.162.705.100.300.470.681.222.905.400.310.500.731.313.205.800.340.530.781.413.406.100.380.570.841.533.506.500.440.660.941.723.907.200.500.731.061.884.307.90

4,6506,1907,330

11,73019,35032,6205,4107,2008,500

13,56022,21036,4306,2308,2809,770

15,52025,28042,2307,1109,440

11,11017,64028,58046,5008,060

10,67012,55019,86032,06053,04010,10013,36015,69024,71039,61065,07012,38016,37019,16030,10047,96078,320

2,2203,2104,1007,290

13,70025,6102,4803,5304,5408,040

15,05027,7702,6803,9005,0408,810

16,49030,9302,9304,2705,4909,700

18,04033,0903,2504,6405,970

10,49019,58036,4203,7705,3806,920

12,17022,68042,0404,3706,2407,870

14,03026,01047,930

• Large Diameter

• Light Weight



22

KAA KA1/4"

KB5/16"

KC3/8"

KD1/2"

KF3/4"

KG1"

.187 .250 .312 .375.500

.750

1.000


PARTNUMBER*

11.0000 11.0000 11.0000 11.0000 11.0000 11.0000 12.0000 12.0000 12.0000 12.0000 12.0000 12.0000 14.0000 14.0000 14.0000 14.0000 14.0000 16.0000 16.0000 16.0000 16.0000 16.0000 18.0000 18.0000 18.0000 18.0000 18.0000 20.0000 20.0000 20.0000 20.0000 20.0000 25.0000 25.0000 25.0000 25.0000 30.0000 30.0000 30.0000 30.0000 35.0000 35.0000 40.0000 40.0000

11.5000 11.6250 11.7500 12.0000 12.5000 13.0000 12.5000 12.6250 12.7500 13.0000 13.5000 14.0000 14.6250 14.7500 15.0000 15.5000 16.0000 16.6250 16.7500 17.0000 17.5000 18.0000 18.6250 18.7500 19.0000 19.5000 20.0000 20.6250 20.7500 21.0000 21.5000 22.0000 25.7500 26.0000 26.5000 27.0000 30.7500 31.0000 31.5000 32.0000 36.5000 37.0000 41.5000 42.0000

0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.2500 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3125 0.3750 0.5000 0.7500 1.0000 0.3750 0.5000 0.7500 1.0000 0.3750 0.5000 0.7500 1.0000 0.7500 1.0000 0.7500 1.0000

0.025 0.032 0.040 0.060 0.080 0.080 0.025 0.032 0.040 0.060 0.080 0.080 0.032 0.040 0.060 0.080 0.080 0.032 0.040 0.060 0.080 0.080 0.032 0.040 0.060 0.080 0.080 0.032 0.040 0.060 0.080 0.080 0.040 0.060 0.080 0.080 0.040 0.060 0.080 0.080 0.080 0.080 0.080 0.080

11.188 11.234 11.281 11.375 11.563 11.750 12.188 12.234 12.281 12.375 12.563 12.750 14.234 14.281 14.375 14.563 14.750 16.234 16.281 16.375 16.563 16.750 18.234 18.281 18.375 18.563 18.750 20.234 20.281 20.375 20.563 20.750 25.281 25.375 25.563 25.750 30.281 30.375 30.563 30.750 35.563 35.750 40.563 40.750

11.313 11.391 11.469 11.625 11.938 12.250 12.313 12.391 12.469 12.625 12.938 13.250 14.391 14.469 14.625 14.938 15.250 16.391 16.469 16.625 16.938 17.250 18.391 18.469 18.625 18.938 19.250 20.391 20.469 20.625 20.938 21.250 25.469 25.625 25.938 26.250 30.469 30.625 30.938 31.250 35.938 36.250 40.938 41.250

4-POINT CONTACT, X-TYPEThin Section Ball Bearings


KA110XP0*RBCKB110XP0*RBCKC110XP0*RBCKD110XP0*RBCKF110XP0*RBCKG110XP0*RBCKA120XP0*RBCKB120XP0*RBCKC120XP0*RBCKD120XP0*RBCKF120XP0*RBCKG120XP0*RBCKB140XP0*RBCKC140XP0*RBCKD140XP0*RBCKF140XP0*RBCKG140XP0*RBCKB160XP0*RBCKC160XP0*RBCKD160XP0*RBCKF160XP0*RBCKG160XP0*RBCKB180XP0*RBCKC180XP0*RBCKD180XP0*RBCKF180XP0*RBCKG180XP0*RBCKB200XP0*RBCKC200XP0*RBCKD200XP0*RBCKF200XP0*RBCKG200XP0*RBCKC250XP0*RBCKD250XP0*RBCKF250XP0*RBCKG250XP0*RBCKC300XP0*RBCKD300XP0*RBCKF300XP0*RBCKG300XP0*RBCKF350XP0*RBCKG350XP0*RBCKF400XP0*RBCKG400XP0*RBC


Land DiameterWWidth

DOutside Diameter

Ball Diameter

1/8 5/323/161/4 3/8 1/2 1/8

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

5/323/161/4 3/8 1/2

3/161/4 3/8 1/2

3/161/4 3/8 1/2 3/8 1/2 3/8 1/2


23

LimitingSpeed(RPM)

Ball Quantity

Approx.Weight (lb)


13511391694736

14712399755139

143115875945

163131996751

1831471117557

2031631238363

20315310378

24318312393

143108163123

2,2102,8903,3705,2208,100

12,9002,4003,1503,6605,6708,760

13,9203,6504,2406,550

10,10015,9504,1604,8207,440

11,42018,0104,6605,4008,320

12,75020,0505,1705,9809,210

14,07022,1007,440

11,42017,39027,2208,890

13,64020,71032,32024,05037,48027,34042,580

8801,2301,5802,7304,9609,010

9101,2701,6402,8305,1209,2701,3701,7302,9405,4409,7201,4601,8003,1405,670

10,2001,5301,8903,2405,880

10,6001,5901,9703,3906,040

11,0502,2103,7206,540

11,7902,4204,0807,040

12,4507,580

13,4607,830

14,030

6,6208,680

10,11015,66024,29038,6907,2009,440

10,98017,00026,28041,75010,96012,73019,64030,29047,86012,48014,46022,32034,26054,03013,99016,20024,96038,24060,14015,50017,94027,62042,21066,30022,31034,26052,17081,65026,67040,92062,14096,96072,140

112,45082,010

127,730

2,2103,0803,9506,830

12,41022,5302,2803,1904,0907,080

12,80023,1803,4304,3307,360

13,60024,3003,6404,4907,850

14,17025,5103,8304,7208,110

14,70026,5003,9804,9208,480

15,10027,6305,5309,300

16,36029,4706,060

10,19017,60031,13018,95033,65019,57035,080

4,9706,9708,990

15,72029,16054,0805,5807,840

10,13017,71032,64060,2709,820

12,44021,33040,13072,90011,88014,71025,90047,48086,73014,02017,35029,99055,110

100,69016,19020,04034,78062,670

116,04028,08047,43084,240

153,25036,79062,170

108,250192,990135,520242,280159,530287,670

1,0701,0601,0501,0401,0201,000

980970970960940920840830830810800740730730720710660650650640630590590590580570470470470460400390390390340330290290


14,90019,65023,00036,01057,07092,85017,64023,24027,19042,49067,020

108,55031,37036,59056,95089,340

143,58040,70047,35073,650

114,760183,69051,23059,54092,340

143,420228,55062,95073,110

113,230175,180278,460113,240174,730268,690424,580162,040249,630382,150601,170515,830809,650668,410

1,047,360

W

D

B

L

Lo

i


4-PT.

X-T

YP

E

Static Dynamic Static0.520.751.162.064.808.600.560.831.252.255.209.301.051.522.736.00

10.801.201.733.107.10

12.301.351.943.487.90

13.701.502.163.858.90

15.802.694.79

10.9019.503.215.73

13.0023.3015.1027.1017.2030.80

Dynamic Static Dynamic

• Large Diameter

• Light Weight



24

Ball Diameter

Ball Quantity

353739414347515559636775839199

SEALED RADIAL CONTACT, C-TYPEThin Section Ball Bearings

JU040CP0*RBCJU042CP0*RBCJU045CP0*RBCJU047CP0*RBCJU050CP0*RBCJU055CP0*RBCJU060CP0*RBCJU065CP0*RBCJU070CP0*RBCJU075CP0*RBCJU080CP0*RBCJU090CP0*RBCJU100CP0*RBCJU110CP0*RBCJU120CP0*RBC

4.00004.25004.50004.75005.00005.50006.00006.50007.00007.50008.00009.0000

10.000011.000012.0000

0.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.500

4.75005.00005.25005.50005.75006.25006.75007.25007.75008.25008.75009.7500

10.750011.750012.7500

Mi4.1554.4054.6554.9055.1555.6556.1556.6557.1557.6558.1559.155

10.15511.15512.155

Mo4.5504.8005.0505.3005.5506.0506.5507.0507.5508.0508.5509.550

10.55011.55012.550

PART NUMBER*

*The alphanumeric identification system is used under license.JU Series are also available in low-torque design using PTFE seals.

W

D

B

to clear .015 max (4 places)

Mo

Mi

NOMINAL DIMENSIONS IN INCHESB

BoreW

WidthD

Outside Diameter

3/163/163/163/163/163/163/163/163/163/163/163/163/163/163/16

25

LimitingSpeed(RPM)

Approx.Weight (lb) Radial (lbf)

Static Dynamic StaticThrust (lbf)

Dynamic StaticMoment (lbf - in)

Dynamic0.550.580.610.650.680.740.810.870.930.991.061.181.311.431.56

1,2901,3201,3501,3701,3901,4401,4901,5301,5701,6001,6501,7301,7801,8201,890

3,1103,2703,4403,6103,7804,1104,4504,7905,1205,4505,7906,4707,1407,8008,480

3,7403,8303,9103,9704,0404,1704,3204,4404,5504,6404,7705,0205,1705,2805,470

2,7203,0303,3603,7004,0604,8305,6706,5807,5508,5909,700

12,12014,81017,75020,980

3,2803,5503,8104,0704,3404,9005,5106,1106,7107,3007,9909,410

10,73012,02013,550

3,6603,4603,2803,1202,9802,7202,5102,3302,1702,0301,9101,7001,5401,4101,300

SE

AL

ED

C-T

YP

E


1,5501,6401,7201,8001,8902,0602,2202,3902,5602,7302,9003,2303,5703,9004,240

LOAD RATINGS

26

SEALED RADIAL CONTACT X-TYPEThin Section Ball Bearings

Ball Diameter

Ball QuantityB

BoreW

Width0.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.5000.500

DOutside Diameter Mi

4.1554.4054.6554.9055.1555.6556.1556.6557.1557.6558.1559.155

10.15511.15512.155

Mo4.5504.8005.0505.3005.5506.0506.5507.0507.5508.0508.5509.550

10.55011.55012.550

PART NUMBER*

*The alphanumeric identification system is used under license.JU Series are also available in low-torque design using PTFE seals.

JU040XP0*RBCJU042XP0*RBCJU045XP0*RBCJU047XP0*RBCJU050XP0*RBCJU055XP0*RBCJU060XP0*RBCJU065XP0*RBCJU070XP0*RBCJU075XP0*RBCJU080XP0*RBCJU090XP0*RBCJU100XP0*RBCJU110XP0*RBCJU120XP0*RBC

4.00004.25004.50004.75005.00005.50006.00006.50007.00007.50008.00009.0000

10.000011.000012.0000

4.75005.00005.25005.50005.75006.25006.75007.25007.75008.25008.75009.7500

10.750011.750012.7500

W

D

BM

to clear .015 max (4 places)

Mo

i

353739414347515559636775839199

3/163/163/163/163/163/163/163/163/163/163/163/163/163/163/16


27

SE

AL

ED

X-T

YP

E

LimitingSpeed(RPM)

Approx.Weight (lb) Radial (lbf)

Static Dynamic StaticThrust (lbf)

Dynamic StaticMoment (lbf - in)

Dynamic0.550.580.610.650.680.740.810.870.930.991.061.181.311.431.56

1,3401,4101,4801,5501,6301,7701,9202,0602,2102,3502,5002,7903,0803,3703,660

1,1201,1501,1701,1901,2201,2501,2901,3201,3701,3901,4201,4801,5201,5801,640

4,0104,2304,4404,6604,8805,3105,7506,1806,6307,0607,4908,3709,230

10,11010,980

2,8102,8702,9202,9703,0403,1203,2203,3003,4203,4803,5603,6903,7903,9504,090

3,5103,9104,3304,7805,2506,2407,3308,5009,770

11,11012,55015,69019,16023,00027,190

2,4602,6502,8503,0403,2703,6604,1004,5405,0405,4905,9706,9207,8708,990

10,130

2,2802,1602,0501,9501,8601,7001,5701,4601,3601,2701,1901,070

970880810


LOAD RATINGS

28

he methods, equa–tions, and technical

data presented in thissection allow the user toselect the correct bear-ings and estimate theirperformance for a widerange of applications.For applications with

severe or unusual operating conditions, RBC is pre-pared to provide an in-depth analysis and recommendthe most suitable bearing arrangement.

Where standard bearings cannot be used, RBC canmeet the application requirements with a special bear-ing design specifically tailored for optimum perform-ance. Contact your RBC Sales Engineer for specialsizes, materials, application requirements, dimensionsand tolerances.

Capacity and Fatigue Life ofBall Bearings

The BASIC DYNAMIC RADIAL LOAD RATING,C, or “dynamic capacity”, for a ball bearing is that calculated, constant radial load at which 90% of agroup of apparently identical bearings with station-ary outer rings can statistically endure 106 revolutionsof the inner ring. ANSI/ABMA Standard 9 with correction factors for race curvatures was used to calculate the catalog ratings.

The DYNAMIC THRUST and DYNAMIC MO-MENT LOAD RATINGS are also shown in the prod-uct tables. The ratings shown are a guide for the maximum loads under which these bearings shouldbe operated with either pure thrust or pure momentloading. Thrust ratings are 2.5 to 3.0 times the radialratings depending on the bearing type and cross sec-tion. These load ratings are not additive. For com-bined radial and thrust loads, an equivalent radialload is to be calculated.

The BASIC STATIC LOAD RATING, Co, or “staticcapacity”, is that uniformly distributed load, whichproduces a maximum theoretical contact stress of609,000 psi. At this contact stress permanent defor-mation of ball and raceway occurs. This deformationis approximately .0001% of the ball diameter.

n = number of ballsd = diameter of balls

The RATING LIFE, L10, is a statistical measure ofthe life which 90% of a large group of apparently identical ball bearings will achieve or exceed. For asingle bearing, L10 also refers to the life associatedwith 90% reliability. Median Life, L50, is the life which 50% of the group of ball bearings will achieveor exceed. Median life is approximately five times the rating life.

The relationship between rating life, load rating,and load is:

L10 = (C/P)3 with L10 rating life (106 rev)C basic dynamic radial load rating (lbf)P equivalent radial load (lbf)

To obtain the rating life in hours, use:

L10 hrs = 16667/n * (C/P)3 with n = speed (rpm)

The Equivalent Radial Load is defined as:

P = XFr + YFa with Fr radial load (lbf)Fa axial load (lbf)X - see belowY - see below

Radial Contact Bearing Calculations

For radial contact bearings calculate P with X = 1and Y = 0. Then recalculate P with X = 0.56 and Y =(see chart below). Use the larger value of P to deter-mine L10 life.

THIN SECTION BALL BEARING ENGINEERING DATA

TT

===

==

Fand2 Y25 2.3050 1.99

100 1.71150 1.55200 1.45300 1.31500 1.15750 1.04

1000 1.00

29

Material Factor a2

For standard bearings the material factor a2

isequal to 1.00. Factor a

2is determined by material

Angular or 4-Point Contact Bearing Calculations

For angular contact and 4-point contact bearingscalculate P with X = 1.0 and Y = 0. Then recalculate Pwith X = 0.39 and Y = 0.76. Use the larger value of Pto determine L10 life.

The equations are valid in the range of approxi-mately 100 hrs to 100,000 hrs of life. Extreme loads orspeeds may result in a shorter life; while in lessdemanding applications, metal fatigue may neveraffect bearing service life.

Capacity and fatigue life information is based on ANSI/ABMAStandard 9-1990 published by:The American Bearing Manufacturers Association, Inc., 1200 19thStreet, NW, Suite 300, Washington, DC 20036-2401

Adjustment Factors for Rating Life

If a bearing design and operation deviates signifi-cantly from normal, it may be necessary to use addi-tional factors to estimate the fatigue life Ln.

Ln = a1 * a

2 * a3 * L

10 hrs

with a1

= reliability factora

2= material & processing factor

a3

= application factor

Reliability Factor a1Reliability is the percentage of a group of appar-

ently identical ball bearings that is expected to attainor exceed a specified life. For an individual bearing itis the probability that the bearing will attain or exceed a specified life. Typical bearing fatigue life is calculated for 90% reliability. The life adjustment factors for other reliability numbers are shown below.

Reliability % Ln Reliability Factor a1

90 L10 1.0095 L5 .6296 L4 .5397 L3 .4498 L2 .3399 L1 .21

Load and Speed Limitations

The load ratings shown in the product tables arenot additive. For combined simultaneous loading, anequivalent radial or thrust load must be considered.In general, C-Type bearings are designed for radialloading applications; moderate thrust and/or momentloading may be applied in combination with radialloading. For thrust loading applications use the A-Type bearing; any radial loading should only beapplied in combination with thrust loading. X-Typebearings are primarily for reversing thrust andmoment loading, pure radial loading should not beapplied.

The limiting speeds shown in the product tablesare based on standard lubrication. The unsealed bear-ing speeds are calculated assuming the bearings arelubricated with MIL-PRF-3150. Limiting speeds forsealed bearings are calculated assuming the bearingsare lubricated with MIL-PRF-23827 grease. If bearingsare lubricated with alternate oils or greases, new limit-ing speeds must be calculated, see page 30.

processing, forming methods, heat treatment, andother manufacturing methods. Some commonly usedmaterial factors are listed below:

Application Factor a3

The application factor a3 is equal to 1.0 for mostapplications. Unusual or extreme conditions in certain applications such as low speed, shock loading,vibration, and extreme temperature may lower theapplication factor to 0.50. Contact your RBC Sales Engineer for help in determining this factor for yourspecial applications.

EN

GIN

EE

RIN

GD

ATA

Material, Condition a2

max

52100, Air melt 1.0052100, Vacuum degassed 1.5052100, Air melt & TDC Plate 2.0052100, Vacuum melt, (CEVM) 3.00

440C, Air melt 1.00440C, Vacuum melt (CEVM) 3.00

M50, Vacuum melt (CEVM) 5.00M50, Vacuum re-melt (VIM-VAR) 8.00

30

The k values shown give the maximum speeds atwhich a typical thin section ball bearing can operate. It is recommended that operating speeds of large diameter bearings in a given series be reduced up to40% of the calculated rating to avoid high bearing temperatures. Speed ratings can also be impacted by loadconditions, lubrication, alignment and ambient tempera-ture. All of these factors must be considered when design-ing thin section ball bearings into your application.

Duplex Pairs and AxialPreloading

Duplex PairsDuplex bearings are a pair of angular contact RBC

Thin Section Ball Bearings specially ground for use as a matched set. A duplexed pair can be used to provide accurate shaft location, to increase capacity or to increase stiffness of the bearing assembly. Aduplex pair of RBC Thin Section Ball Bearings isground so that when mounted using recommendedfits, there will be no internal clearance in the bear-ings. There are three basic mounting methods to accommodate different loading requirements:

• Back-to-Back (DB), B-Type• Face-to-Face (DF), F-Type• Tandem (DT), T-Type

Back-to-Back, DBB-Type

• Heavy radial loads• Combined thrust & radial loads• Reversing thrust load• Excellent rigidity• Moment loads

Operating ConditionsLubrication

Lubricants serve a number of very important purposes in ball bearings, including:

• protecting bearing surfaces from corrosion• reducing rolling and sliding friction• preventing metal-to-metal contact between

balls and raceway• providing a barrier against external

contaminants (grease)• removing heat (oil)

Lack of lubrication or inadequate lubrication is themost common cause of bearing failure.

Standard RBC Thin Section Ball Bearings are lubri-cated with either oil or grease. The unsealed bearings,the K series, are thoroughly coated in MIL-PRF-3150 oiland drained of excess. Sealed bearings are lubricatedwith MIL-PRF-23827 grease. The external surfaces ofsealed bearings are lightly coated with the same greasefor corrosion resistance. Additional lubricants are alsoavailable. Your RBC Sales Engineer can help select theappropriate lubricant for special applications.

TemperatureStandard RBC Thin Section Ball Bearings can

operate at temperatures from -65°F to 250°F. Tem-peratures up to 350°F can be reached if the bearingsare temperature stabilized. By the use of special materials RBC can provide bearings for operation to700°F. Contact your RBC Sales Engineer for recom-mendations on bearings operating above 250°F.

Limiting Speed

The limiting speed of a bearing is dependent upona number of different factors including bearing size,bearing type, ball separator design, lubrication andloading. The limiting speeds for the bearings shown inthis catalog are determined using the following:

1000 * k with n Speed (RPM)

E E

k constant, see table below

n =

2

=

=

=

Bearing Type Load Condition Grease Oil

k Value

C or A

X

X

Radial or Thrust

Thrust

Radial,CombinedRadial & Thrust,

or Moment

16

10

3

20

12

4

D + B (Bearing Pitch Diameter)

31

RADIAL PLAY PRELOAD

Axial Preloading

Standard duplex bearings are ground so that there will be a light axial preload induced on the bearing at nominal conditions. In some applicationsincreased bearing stiffness may be required. In thesecases the duplex grinding can be done such that aheavier axial load is induced in the mounted bearing.This load can be increased or decreased to meet therequirements of a particular application. Consult your RBC Sales Engineer for special requirements.

When there is negative radial play (diametral preload) there is interference rather than clearance between the balls and the races. As the interferenceincreases, the friction, stiffness and torque also increase. RBC Thin Section Ball Bearings can be manufactured with customer specified diametral preload or clearance. Consult your RBC Sales Engi-neer for design assistance.

Radial and Axial Runout

Radial runout of RBC Thin Section Ball Bearings isa measurement of the thickness variation of the bearingrings. The outer ring is measured from the ball path tothe outer diameter of the ring, the inner ring is mea-sured from the ball path to the bore. Radial runout isdefined as the wall thickness variation of the rotating ring.

Axial runout is measured from the ball path to the face of the bearing rings. The variation in thick-ness measured is the axial runout.

TolerancesPrecision Grades

RBC Thin Section Ball Bearings are available in fourprecision grades. RBC Precision classes 0, 3, 4 and 6correspond to ABMA ABEC grades 1F, 3F, 5F and 7F respectively. The tolerances for the bearing bores, outerdiameters, radial runouts, axial runouts and radial playsare shown in the Tolerance Tables on pages 34 thru 36.

Shaft and Housing Fits

Proper shaft and housing fits are critical to the successful operation of a thin section ball bearing. The internal clearance of the bearing will be reducedproportionally by an interference fit. In addition, theroundness of the shaft and housing will directly affect the roundness of the inner and outer ring raceways. For most applications the inner ring isrotating and the load is stationary with respect to theouter ring. In this circumstance a light press fit ontothe shaft is recommended. The recommended shaftand housing fits are shown in the Tolerance Tables onpages 34 thru 36.

EN

GIN

EE

RIN

GD

ATA

Radial PlayRadial play (diametral clearance) is the distance

the inner ring can be moved radially from one ex-treme position to the other. Standard RBC Thin Section Ball Bearings are manufactured with enoughradial play that some clearance remains after the bearing is properly installed.

Face-to-Face, DFF-Type

• Heavy radial loads• Combined thrust & radial loads• Reversing thrust load• Moment loads

Tandem, DTT-Type

• High one-direction thrust loads• Minimum axial shaft deflection• Heavy radial loads

32

Mounting ArrangementsWhen selecting a mounting arrangement for RBC

Thin Section Ball Bearings, you must first consider the loading condition. A duplex pair of angular contact bearings may be used for combined loading,moment loading, or heavy thrust loading. Combina-tion A and C-Type, A and X-Type, or C and X-Typebearings are common mounting arrangements. TwoX-Type bearings should never be mounted on thesame shaft. There may be many different bearingarrangements for carrying the same load, some typical mounting arrangements are shown below.

Heavy Radial Loads

The C-Type bearing is designed primarily forheavy radial loads. Two bearings can be installed onthe same shaft as shown. By axially fixing one bear-ing and allowing the other to float, this configurationallows differential expansion between the housing and shaft, such as caused by temperature difference,without adding axial stress to the bearings. Althoughthe C-Type bearing is designed for radial loads, theycan withstand moderate thrust, moment and revers-ing loads.

Reversing Loads

The duplex pair of A-Type bearings offers severalconfigurations. For reversing loads, either back-to-back, B-Type, or face-to-face, F-Type, should be used.The F-Type mounting method demonstrates revers-ing thrust load. Combined radial and thrust loads areshown on the B-Type configuration. Both of thesemethods can be used for heavy radial loads, com-bined thrust and radial loads, or moment loads.

Radial Load

Shim Herefor Proper Axial

Preload

ReversingThrust Load

Shim Here for ProperAxial Preload

Radial Load

ReversingThrust Load

F-Type Configuration

B-Type Configuration

Radial Load

33

Radial Load

Thrust Load

Radial Load

Thrust Load

Heavy Combined Loading

For heavy combined loading other special mount-ing arrangements may be employed. As shown in the top drawing, a duplex pair of A-Type bearings canbe used with a floating C-Type bearing. In this configuration the A-Type bearings will carry the thrustload and part of the radial load while the C-Type carriesonly radial load. An X-Type bearing can replace theduplex pair of A-Type bearings to carry lower thrustloads as shown in the second drawing.

Heavy Combined Loading or Moment Loading

Alternate mountings for heavy combined loadingor moment loading are shown below. A duplex pairof B-Type bearings resists high thrust, radial andmoment loads. An X-Type bearing may replace theduplex pair in less heavily loaded applications forweight, space and cost savings.

Moment Load

Moment Load

B-Type Configuration

Single Bearing X-Type Configuration

EN

GIN

EE

RIN

GD

ATA

34

Precision Tolerances

The RBC Thin Section Bearings shown in this catalogare manufactured to ABEC 1F precision tolerances. Whererequired, RBC Thin Section Bearings can be manufacturedto ABEC 3F, ABEC 5F and ABEC 7F precision tolerances.

RBC THIN SECTION BALL BEARINGSTOLERANCE TABLES & RECOMMENDED FITS

BearingBoreSize

Inches

ABEC 1F C-TYPE

Stationary Shaft

RBC PRECISION CLASS 0 Values in 0.0001 inches

1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.25 4.50 4.75 5.00 5.50 6.00 6.50 7.00 7.50 8.00 9.00

10.00 11.00 12.00 14.00 16.00 18.00 20.00 25.00 30.00 35.00 40.00

-4-5-6-6-6-8-8-8-8

-10-10-10-10-10-10-12-12-12-14-14-14-16-18-18-20-30-30-40-40

-5-5-5-5-6-6-6-8-8-8-8

-10-10-10-10-12-12-12-14-14-14-16-18-18-20-30-30-40-40

56888

101010101212121212121616161818181818202020202020

88

101010121214141414161616161818182020202020202020202020

-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50

-100-100-100-100-100-100-100-100

1012121212161616162020202020202424242828283236364060608080

161824242428282828343434343434424242484848525656608080

100100

+4+5+6+6+6+8+8+8+8

+10+10+10+10+10+10+12+12+12+14+14+14+16+18+18+20+30+30+40+40

-8-10-12-12-12-16-16-16-16-20-20-20-20-20-20-24-24-24-28-28-28-32-36-36-40-60-60-80-80

-5-5-5-5-6-6-6-8-8-8-8

-10-10-10-10-12-12-12-14-14-14-16-18-18-20-30-30-40-40

-10-10-10-10-12-12-12-16-16-16-16-20-20-20-20-24-24-24-28-28-28-32-36-36-40-60-60-80-80

Diameters

BoreNominal

O.D.Nominal

InnerMax Min Max Nominal Nominal Max Min Max Min

Rotating ShaftRadial PlayBefore Installation

Race RunoutRadial & Axial

OuterMax

WidthNominal

+5+5+5+5+6+6+6+8+8+8+8

+10+10+10+10+12+12+12+14+14+14+16+18+18+20+30+30+40+40

-4-5-6-6-6-8-8-8-8

-10-10-10-10-10-10-12-12-12-14-14-14-16-18-18-20-30-30-40-40

Housing IDShaft ODHousing IDShaft OD

Bearing Bore Size (inches) Width

Over Including Max Min-

2.005.00

14.00

2.005.00

14.0040.00

0000

-200-300-400-500

DUPLEX PAIR WIDTH TOLERANCES Values in 0.0001 inches

Does not apply to bearings with preload.

35

BearingBoreSize

Inches

ABEC 3F ALL TYPES

Diameters

BoreNominal

O.D.Nominal


Shaft OD Housing ID

Rotating Shaft

Shaft OD Housing ID

Bearing Radial PlayBefore Installation(C & X-Type Only)



OuterMax

Stationary Shaft

WidthNominal



BearingBoreSize

Inches

ABEC 1F A-TYPE & X-TYPE

-5-5-5-5-6-6-6-8-8-8-8

-10-10-10-12-12-12-12-14-14-14-14-16-16-18-18-18-20-20

-10-10-10-10-12-12-12-16-16-16-16-20-20-20-24-24-24-24-28-28-28-28-32-32-36-36-36-40-40

Diameters

BoreNominal

O.D.Nominal

InnerMax

OuterMax Min Max Nominal Nominal Max Min Max Min

Shaft OD Housing IDShaft OD Housing ID

Bearing Radial PlayBefore Installation

(X-Type Only)


WidthNominal

Stationary ShaftRotating Shaft

TOLE

RA

NC

ES

& F

ITS

1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.25 4.50 4.75 5.00 5.50 6.00 6.50 7.00 7.50 8.00 9.00

10.00 11.00 12.00 14.00 16.00 18.00 20.00 25.00 30.00 35.00 40.00



-4-5-6-6-6-8-8-8-8

-10-10-10-10-10-10-12-12-12-14-14-14-14-16-16-18-18-18-20-20

-8-10-12-12-12-16-16-16-16-20-20-20-20-20-20-24-24-24-28-28-28-28-32-32-36-36-36-40-40

-5-5-5-5-6-6-6-8-8-8-8

-10-10-10-12-12-12-12-14-14-14-14-16-16-18-18-18-20-20

34556666688

101010101212121414141416161818182020

44556668888

101010101212121414141416161818182020

-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50

-100-100-100-100-100-100-100-100

1012121212161616162020202020202424242828282832323636364040

1517222222262626263030303030303434343838383842424646465050

+4+5+6+6+6+8+8+8+8

+10+10+10+10+10+10+12+12+12+14+14+14+14+16+16+18+18+18+20+20

-4-5-6-6-6-8-8-8-8

-10-10-10-10-10-10-12-12-12-14-14-14-14-16-16-18-18-18-20-20

+5+5+5+5+6+6+6+8+8+8+8

+10+10+10+12+12+12+12+14+14+14+14+16+16+18+18+18+20+20

1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.25 4.50 4.75 5.00 5.50 6.00 6.50 7.00 7.50 8.00 9.00

10.00 11.00 12.00 14.00 16.00 18.00 20.00

-2-3-4-4-4-5-5-5-5-6-6-6-6-6-6-7-7-7-8-8-8-8-9-9

-10

-3-3-4-4-4-4-4-5-5-5-5-6-6-6-7-7-7-7-8-8-9-9

-10-10-12

344445555666666888

10101012141416

44556668888999

1010101012121414161618

-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50

-100-100-100-100

78888

1010101012121212121414141416161818202024

11121818182020202022222222222424242426262828303034

+2+3+4+4+4+5+5+5+5+6+6+6+6+6+6+7+7+7+8+8+8+8+9+9

+10

+3+3+4+4+4+4+4+5+5+5+5+6+6+6+7+7+7+7+8+8+9+9

+10+10+12

-2-3-4-4-4-5-5-5-5-6-6-6-6-6-6-7-7-7-8-8-8-8-9-9

-10

-4-6-8-8-8

-10-10-10-10-12-12-12-12-12-12-14-14-14-16-16-16-16-18-18-20

-6-6-8-8-8-8-8

-10-10-10-10-12-12-12-14-14-14-14-16-16-18-18-20-20-24

-3-3-4-4-4-4-4-5-5-5-5-6-6-6-7-7-7-7-8-8-9-9

-10-10-12

36



ABEC 5F ALL TYPES

Diameters

1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.25 4.50 4.75 5.00 5.50 6.00 6.50 7.00 7.50 8.00 9.00

10.00 11.00 12.00 14.00 16.00 18.00 20.00

Radial AxialShaft ODNominalMin Max

BoreNominal

-2-2-3-3-3-3-3-3-3-4-4-4-4-4-4-5-5-5-5-5-5-6-6-6-7

-2-2-3-3-3-3-3-4-4-4-4-5-5-5-5-5-5-5-5-5-6-6-7-7-8

-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50

-100-100-100-100

55556668888

1010101010101010101212141414

9999

121212141414141616161616161616161818202022

+2+2+3+3+3+3+3+3+3+4+4+4+4+4+4+5+5+5+5+5+5+6+6+6+7

+2+2+3+3+3+3+3+4+4+4+4+5+5+5+5+5+5+5+5+5+6+6+7+7+8

-2-2-3-3-3-3-3-3-3-4-4-4-4-4-4-5-5-5-5-5-5-6-6-6-7

-4-4-6-6-6-6-6-6-6-8-8-8-8-8-8

-10-10-10-10-10-10-12-12-12-14

-2-2-3-3-3-3-3-4-4-4-4-5-5-5-5-5-5-5-5-5-6-6-7-7-8

-4-4-6-6-6-6-6-8-8-8-8

-10-10-10-10-10-10-10-10-10-12-12-14-14-16

Housing ID Shaft OD Housing IDNominal Max Min Max Min

O.D.Nominal

InnerMax

OuterMax

InnerMax

Race Runout Bearing Radial PlayBefore Installation

(C & X-Type Only)

Rotating Shaft

3333344444444445556667889

334455555556666666778899

10

BearingBoreSize

InchesOuterMax

WidthNominal

Stationary Shaft


ABEC 7F ALL TYPES

Diameters


Shaft OD Housing ID

Rotating Shaft

Shaft OD Housing ID

Bearing Radial PlayBefore Installation(C & X-Type Only)


OuterMax

Stationary Shaft

WidthNominal

BearingBoreSize

InchesBore

NominalO.D.

Nominal



2233444444455555556677889

2222233333333334445555778

1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.25 4.50 4.75 5.00 5.50 6.00 6.50 7.00 7.50 8.00 9.00

10.00 11.00 12.00 14.00

-1.5-2-2-2-2

-2.5-2.5-2.5-2.5

-3-3-3-3-3-3-4-4-4-5-5-5-5

-2-2-2-2-3-3-3-4-4-4-4-4-4-4-4-4-4-4-5-5-5-6

1.51.51.51.51.5

22223333333334444

2222222333333344444455

-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50-50

-100

455566688888888888

10101012

89

1010121212141414141414141414141416161618

+2+2+2+2+2+3+3+3+3+3+3+3+3+3+3+4+4+4+5+5+5+5

+2+2+2+2+3+3+3+4+4+4+4+4+4+4+4+4+4+4+5+5+5+6

-2-2-2-2-2-3-3-3-3-3-3-3-3-3-3-4-4-4-5-5-5-5

-4-4-4-4-4-5-5-5-5-6-6-6-6-6-6-8-8-8

-10-10-10-10

-4-4-4-4-6-6-6-8-8-8-8-8-8-8-8-8-8-8

-10-10-10-12

-2-2-2-2-3-3-3-4-4-4-4-4-4-4-4-4-4-4-5-5-5-6

37

CUSTOM FEATURES

BC manufactures many custom bearings designed to optimize bearing performance for specific applica-

tions. Special features include changes in radial play, lubri-cants, materials, preloading and design. Contact your RBCSales Engineer for your custom bearing needs.

Challenge us: There are many design options availableto solve difficult application problems.

MaterialsThe standard bearings shown in the catalog have SAE

52100 steel rings and balls. RBC Thin Section Ball Bearingscan be manufactured from other specialty bearing steels toprovide corrosion resistance, high temperature capability,alternative load capacity or chemical compatibility.

Rings. RBC has manufactured thin section ball bearings from SAE 440C stainless steel to provide corro-sion resistance. As an alternative to stainless steel rings, the entire surface of the rings can be plated with nodularthin dense chrome (TDC). This plating, which meets AMS2438, achieves a molecular bond that will not flake, peel orseparate from the base material. The TDC plate has a hardness of HRC 70 - 78 and can withstand temperatureswell beyond the range of the base material.

Special RBC Thin Section Ball Bearings have been manufactured from Aluminum, 300 Series Stainless Steel,17-4 Stainless Steel, and other metals.

Balls. Some special ball materials available include440C Stainless Steel, 300 Series Stainless Steel, SiliconNitride and M-50 Steel.

LubricationMany different lubricants are available from RBC for

special applications. Greases which are designed specifi-cally for high speed, low torque, water resistance, high temperature, oscillatory motion and food machinery can be provided. Additional lubricants, such as dry film, aresuitable for use in vacuums and space applications.

SealingStandard seals for thin section ball bearings are

molded from elastomers. Polytetra-flouroethylene (PTFE)seals, fiber glass reinforced PTFE seals, stainless steelshields and many other options are available for low torque and other special applications.

RR Radial PlayThe radial play (diametral clearance) of a thin section

ball bearing will need to be predetermined if mounting fitsother than those recommended are used. Special radialplay may be required for a temperature differential acrossthe bearing, for housing and shaft materials that have different coefficients of thermal expansion, or to change operating characteristics of the bearing. Radial preloadedbearings are measured to meet bore and O.D. tolerancesprior to preload.

Preloading of Duplex Bearings

Standard duplex bearings are ground so that there will be a light axial preload induced on the bearing at nominal conditions. In some applications increased bearing stiffness may be required. In these cases the duplex grinding can be done such that a heavier axial loadis induced in the mounted bearing. This load can be increased or decreased to meet the requirements of a particular application. Consult your RBC Sales Engineerfor special requirements.

Mounting Features

Mounting features, such as flanges, anti-rotation tabsand mounting holes can be incorporated on the inner andouter rings. Mating parts, such as gears and housings, may be integrated into the bearing rings for improved performance and cost.

CU

STO

MF

EA

TU

RE

STO

LER

AN

CE

S&

FIT

S

38

Schematic Illustration of Effects of Cage Design and Materialon Bearing Torque, Speed and Temperature.

EF

FE

CT

ON

TO

RQ

UE

STAINLESS STEEL

BRASS

NYLON

PHENOLIC

TE

MP

ER

AT

UR

E T

OL

ER

AN

CE

SPEED

BEARING TORQUE BEARING TEMPERATURE

SPEED

STAINLESS STEEL

BRASS

NYLON

PHENOLIC

Circular PocketsSnap-Over

Separators

Standard RBC Thin Section Ball Bearings, KAthrough KG and JU series, are manufactured withvariety of ball separator designs such as metallic and anon-metallic cages, toroids, slugs, and spacer balls. See page 39 for illustration.

The graph below schematically illustrates theeffects of cage design and material on bearing performance. For example, the one piece circularpocket design may reach roughly two times the speedof the snap-over design. Likewise, a brass separatordesign will generate more torque and withstandhigher temperatures than a phenolic separator. Exactspeed limits depend on bearing size, bearing type,

lubrication and loading. For assistance in selecting theappropriate separator for special applications, contactyour RBC Sales Engineer.

Maximum Speed for Snap-Over cage Design

39

SEPARATOR SELECTION GUIDE

DESIGNSeparator

Type Description Material Advantages Bearing Features Limitations

G

H

R

U

D

L

P

T

I

S

W

I

F

Z

Nylon

PhenolicLaminate

Brass orComposite

Stainless Steel

PhenolicLaminate

Nylon

Brass orComposite

Stainless Steel

PTFE

StainlessSteel, or musicwire

StainlessSteel, or musicwire

PTFE orPolymide

N/A

Metal orceramics,same as ballmaterial

One-piece ring, circularpockets

One-piece ring, circular pockets



One-piece ring,snap-over type




Slugs

Helical coilsprings

Wire cage,open segmental

Toroids

Full comple-ment of balls

Spacer Balls

Low torque and lightweight applications. Highspeed limits.

Low torque and lightweight applications. Canbe oil impregnated asrequired.

Ideal for commercialapplications with moder-ate torque and speedrequirements.

High strength, improvedcorrosion resistance.High temperature capa-bilities.

Low torque and lightweight applications. Canbe oil impregnated asrequired.

Low torque and lightweight applications. Highspeed limits.

Ideal for commercialapplications with moder-ate torque and speedrequirements.

High strength, improvedcorrosion resistance.High temperature capa-bilities.

Low torque applications,higher capacity thanstandard bearings.

Low torque and lightweight applications.

High torque, low speed,and light weight applications.

Low torque applications,higher capacity thanstandard bearings.

Highest loading capacityand maximum stiffness.

High temperature appli-cations, offers higherresistance to wear.

Used in A-Type bearings,standard for KAA series.

Used in A-Type bearings.

Standard separator for A-Type bearings KA throughKG series.

Used in A-Type bearings.

Designed for use in C-Type and X-Type bearings.

Used in both C- and X-Type bearings, standardfor KAA series.

Standard separator for C-and X-Type bearings KAthrough KG series.

Used in C- and X-Typebearings.

Used in C and X-Typebearings. Offers increasedball complement.

Used in C and X-Typebearings.

Used in A-Type bearings.May also be used in Cand X-Type bearings withhalf as many balls.

Used in A-Type bearings.Offers increased ball com-plement.

All bearing types. C- andX-Type require a fillingslot.

Filling slot required for C- and X-type bearings.Reduced ball complementin A-Type bearings.

Not recommended fortemperatures outside ofthe standard range: -65°to 250°F.

Not recommended fortemperatures above250°F.

Not recommended for lowtorque applications.


Not recommended forhigh speed or high tem-perature applicationsabove 250°F.

Not recommended fortemperatures outside ofthe standard range: -65°to 250°F.


Not recommended for low-torque applications.

Not intended for use inhigh speed applications.Material may have tem-perature limitations.

Not intended for use inhigh speed applications.

Not intended for use inhigh speed applications.

Not intended for use inhigh speed applications.Material may have tem-perature limitations.

Higher torque and lowerspeed limits. Not recom-mended for high torqueand/or high speed.

Lower load capacity in A-Type bearings.

CU

STO

MF

EA

TU

RE

SS

EPA

RTO

RG

UID

E

40

TYPICAL APPLICATIONS

hin section ball bearings are generally used in applica-tions with space, weight, and load constraints. Some

typical applications for standard RBC Thin Section Ball Bearings include:

Medical Equipment Machine ToolsRadar Equipment Textile MachineryMaterial Handling Satellite SystemsAntenna Pedestals Packaging MachineryAerospace Scanning EquipmentOptical Equipment Semi-ConductorRotary Joints Manufacturing EquipmentMilitary Turrets Slip Ring AssembliesRobotics Harmonic Drives

Speed Reducers

Rotary TableUsing a 4-point contact bearing provides high stiffnesswith minimum deflection resulting in a streamlined andlightweight design.

Lightweight Airborne Electro-Optical Imaging EquipmentThis application requires bear-ings with combined load carry-ing capabilities and minimaladded weight. A pair of angularcontact RBC Thin Section BallBearings provides high stiffnessand multiple load carrying capa-bilities in a compact, lightweightenvelope.

Rotary JointBy using a pair of angular contact RBC Thin Section BallBearings, this design can carryradial, axial and moment loads.

Rotating Polishing TableTo provide necessary stiffness with a more compact, lighterweight machine design, use the 4-point contact RBC ThinSection Ball Bearing.

Paper Making MachineA pair of radial contact RBC Thin Section Ball Bearings isthe ideal choice for applications with severe space con-straints and significant loads.

Direct Drive AssemblyA duplex pair of angular contactRBC Thin Section Ball Bearingsprovide the optimal load carryingcapabilities in a compact design.

TT

41

II

10.750Ø

8.750Ø

2.000

Aerial Camera AssemblyFor use in an aerial camera assembly, an extra-light, lowtorque bearing was required. By redesigning a standardRBC Thin Section Ball Bearing 4-point contact design, theoverall assembly weight was lowered from 7 lbs. to 3.8 lbs.In addition to weight reduction, this design, also reducedthe running torque below 1 in.-lbs. with the starting torquebelow 2 in.-lbs.

CUSTOM BEARINGS

Airborne Radar SystemA duplex pair of angular contact RBC Thin Section BallBearings was designed for an airborne radar system. Thisbearing application required combined load carrying capabilities, low temperature compatibility, and relativelylow torque. Different from a standard Thin Section, thisduplex bearing was designed with one outer ring and twoinner rings with a slight preload. This design providedlow torque and multiple loading capabilities.

Continuous Rotating Machine Tool TableUsing a 4-point contact RBC Thin Section Ball Bearing provides stiffness for accurate positioning as well as carrying multiple loads. RBC supplied this assembly asshown.

Machine Tool Indexing TableRunning at slow speeds with combined load carrying capabilities and minimal space determined the use of this4-point RBC Thin Section Ball Bearing. RBC supplied thisassembly as shown.

in.

in.

in.

TY

PIC

AL

APPLICATIONS

n addition to the standard RBC Thin Section Ball Bearings, RBC will also manufacture specially designed

bearings for specific applications. RBC Sales Engineers andCustomer Service Representatives are available for consultation.

42

.500 in.

26.750 in.

27.750 in.

Aircraft Gun TurretA bearing was required which would take radial, axial, andmoment loading, to support an aircraft gun turret. Itwas desirable to have the bearing match the coefficientof expansion of the aluminum with a split inner ring andspecial balls to absorb shock and vibration loading.This bearing performed at 25% of the torque of the steelbearings previously used.

Semiconductor Automated Test EquipmentSemiconductor automated testequipment required an RBC ThinSection Ball Bearing to accuratelyposition a table. In this applicationthe bearing oscillates to ±10°, thisbearing was designed as a 4-pointcontact bearing.

Radar Antenna DriveAn RBC Thin Section Ball Bearing designed with a gearintegrated with the inner ring, achieved both a significantweight reduction and improved accuracy as well as sim-plicity of assembly. This bearing is used in a radar antennadrive which has limited space available for its supportbearing. Coil springs were used as spacers between ballsto lower bearing torque and further reduce weight.

Instrument Gimbal AssemblyA preloaded duplex pair of angular contact RBC Thin SectionBall Bearings were designed to meet the low torque and corrosion resistant requirements in a combined load applica-tion. Designed for an instrument gimbal assembly in a missile, the duplex pair of bearings are subjected to combinedradial, axial and moment loads. These special RBC ThinSection Ball Bearings have a light preload and were manufac-tured with integral shields as part of the rings.

Vacuum OperationBearing requirements included minimal radial runout, lowtorque, corrosion resistance, combined load capabilitiesand vacuum operation capabilities. Special designedduplex stainless steel angular contact RBC Thin Section BallBearings, provided the capabilities required.

Airborne Turret AzimuthA low torque, high stiffness, multiple load capacity, corrosion resistant bearing was required for an airborneturret azimuth drive assembly. For this application aduplexed pair of angular contact RBC Thin Section BallBearings was designed with toroid separators and stainlesssteel rings. This design maintained low torque, but stillallowed multiple load carrying capabilities.

Integral Shields

.500 in.

4.996 in.

5.500 in.

PTFE Torroids

1.500 in.

Bore DIA.

15.500 in. DIA.

integral gear

43(continue on second sheet if necessary)

DA

TAFA

X

ENGINEERING APPLICATION DATAFAST FAX

For assistance in selecting the correct bearings for your design, complete this form and fax or mail it to:

RBC Bearings400 Sullivan Way, P.O. Box 77430

West Trenton, NJ 08628-7430FAX: 609-882-5533

www.rbcbearings.comCompany Name: Date:

Street Address:

City: State: Zip Code:

Name: Title:

Phone: Fax: e-mail:

Description of application:

Speed:

Rotational rpm Inner Ring Rotating

Oscillatory cpm Outer Ring Rotating

Temperature:

Average running min max

Loading:

Shock Vibration Safety factor (Please specify)

Dynamic radial Lbs. Stationary Load Rotating Load

Dynamic thrust Lbs.

Dynamic moment Ft. Lbs. Stationary Load Rotating Load(show application of load on sketch)

Static radial Lbs.

Static thrust Lbs.

Static moment Ft. Lbs. (show application of load on sketch)

Life:

Lubricant:

Grease Oil Special (Please specify)

Size limitations:

Max. OD__________inches Min. bore__________inches Max. Width__________inches

Other data:

Seals Shields Special (Please specify)

Housing material __________________________Shaft material________________________________________

Further description of application and/or special requirements: Sketch included

CU

STO

MB

EA

RIN

GS

RBC Bearings has been producing bearings in the USA since 1919. In addition to unique custom bearings, RBC offers afull line of standard industrial and aerospace bearings, including:

Spherical Plain Bearings

Radial, angular contact, extended innerring, high misalignment. QuadLube®,ImpactTuff®, SpreadLock® Seal,CrossLube®, DuraLube™, MillTuff™bearings, and self-lubricating bearings.Available in inch and metric sizes.

Self-Lubricating Bearings

Radial, thrust, rod ends, spherical bearings, high temperature, high loads.Available in inch and metric sizes.Fiberglide® self-lubricating bearings.

Airframe Control Bearings

Ball bearing types, self-lubricating types,needle roller track rollers.

Thin Section Ball Bearings

Standard cross sections to one inch.Sizes to 40 inches. Stainless steel andother materials are available. Seals areavailable on all sizes and standard crosssections.

Rod Ends

Commercial and industrial, precision,Mil-Spec series, self-lubricating, and air-craft. Sold under the Heim®, Unibal®,and Spherco® brands. Available in inchand metric sizes.

Ball Bearings

Precision ground, semiground,unground. High loads, long life, smoothoperation. Nice™ ball bearings areoffered in caged and full complementconfigurations.

Cam Followers

Standard stud, heavy stud, yoke type,caged roller followers. Patented RBCRoller® cylindrical roller cam followers,HexLube® universal cam followers, airframe track rollers.

Needle Roller Bearings

Tapered Roller and Thrust Bearings

Pitchlign® caged heavy duty needleroller bearings, inner rings, TJTandemRoller® bearings for long life.

Tyson® case-hardened and through-hardened tapered roller bearings. RBCtapered thrust bearings. Available inmany sizes. Used in Class 8 heavytruck and trailer wheel bearings, gear-boxes, and final drive transmissions.

Ball Screws

Precision ground, rolled, ball splines.Long life, low wear, high accuracy.QuickTurn® Ball Screw Repair Service.

Specials

RBC manufactures many specialty bear-ings for the aerospace, oil and energy,semiconductor equipment, packaging,heavy truck, and other industries.

Innovation. Commitment. Quality.

Authorized RBC Distributor

RBC 1/07

www.rbcbearings.com

Dowel Pins, LooseNeedle Rollers, ShaftsPrecision Products dowel pins, looseneedle rollers, and shafts.

© 2007 RBC Bearings Incorporated

This document contains a general overview of the products and features described herein. It is solely for informational purposes, does not represent a warranty of the infor-mation contained herein, and is not to be construed as an offer to sell or a solicitation to buy. Contact RBC Bearings Incorporated for detailed information suitable to yourspecific applications. RBC Bearings Incorporated reserves the right to modify its products and related product information at any time without prior notice.

radial, angular, and 4-point contact thin section ball ... · pdf filethin section ball...

Documents