faa approved ball bearings

Timken FAA-TSO C-149

Aerospace Bearing Part Numbering Guide

2

Introduction ........................................................................................................................... 3

Miniature and Instrument Aircraft Bearing Classification ......................................... 4

Thin-Section and Torque-Tube Aircraft Bearing Classification ................................. 6

Miniature and Thin-Section Nomenclature .....................................................................8

Bearing Family 1Deep-groove, radial-retainer, inch and metric design ................................................ 11

Bearing Family 2Angular-contact, non-separable .................................................................................... 14

Bearing Family 3Angular-contact, separable ............................................................................................. 17

Bearing Family 4Deep-groove, full-complement ....................................................................................... 19

Bearing Family 5Deep-groove, radial-retainer, narrow series ............................................................... 21

Bearing Family 6Deep-groove, radial-retainer, modified dimension ..................................................... 23

Bearing Family 7Thin-section/torque-tube, Conrad series ..................................................................... 25

Bearing Family 8Thin-section/torque-tube, angular-contact series ..................................................... 28

Bearing Family 9Thin-section/torque-tube, fractured-race series ....................................................... 31

Appendix .............................................................................................................................. 33

TAble OF COnTenTS

3

WarningFailure to observe the following warnings could

create a risk of death or serious injury.

Proper maintenance and handling practices are critical. Always follow installation instructions and

maintain proper lubrication.

This part number guide is designed to help you identify and specify Timken

bearings available under the Federal Aviation Administration (FAA) Technical

Standard Order (TSO) C-149. This often is a replacement for an original part. By following

the steps within this guide, you may determine a suitable bearing for your specific

application. As always, your Timken sales engineer is only a phone call away.

InTrOduCTIOn

4

MInIATure And InSTruMenT AIrCrAFT beArIng ClASSIFICATIOn

Miniature- and instrument-type aircraft bearings are divided into six families in this guide. Specific part number, boundary dimension, design properties and performance properties for each family are defined in the tables. To begin specification of a part, determining the appropriate family by visual identification or typical application is helpful.

Family 1 – Deep-groove, radial-retainer, inch and metric design

Family 2 – Angular-contact, non-separable

Family 3 – Angular-contact, separable

Family 4 – Deep-groove, full-complement

Family 5 – Deep-groove, radial-retainer, narrow series

Family 6 – Deep-groove, radial-retainer, modified dimension

Fig. i. Faa approval letter – families 1-6.

5

taBle i. Miniature and instruMent typical applications

Typical Applications Family1

Family2

Family3

Family4

Family5

Family6 Note

Air data sensor X X X

APU intake door actuator X X

Control column stall warning shaker X X

Controller mechanism X X

Differential assembly servo X X

Elec. mech. rotary actuator flow meter X X

Front angle of attack synchro X X

Fuel control X X

Fuel control comp. discharge X X

Fuel control comp. discharge press sensor X X

Fuel flow indicator X X

Fuel flow transmitter X X

Gear train assembly servo X X

General aviation directional & attitude gyros X X X X

Horizon situation indicator (HIS) X X

Lift transducer X X

Mech. assembly inlet TX X X

Overboard air exhaust valve X X

Power failure detector motor press sensor X X

Pressure outflow control valve X X X

Receiver synchro X X

Servo X X

Rate gyro X X

Tachometer motor X X

Vertical gyro X X

Note: Components often fall into multiple families, and some may not be listed here. If your component does not appear to match a typical family or appears visually different, contact your Timken sales engineer for assistance.

Family 1 Family 2 Family 3 Family 4 Family 5 Family 6

Fig. ii. Miniature and instrument bearing family visual identification.

6

ThIn-SeCTIOn And TOrque-Tube InSTruMenT ClASSIFICATIOn

Thin-section and torque-tube instrument ball-type aircraft bearings are divided into three families in this drawing. Specific part number, boundary dimension, design properties and performance properties for each family are defined in the drawing supplements. To begin specification of a part, determining the appropriate family by visual identification or typical application is required.

Family 7 – Thin-section/torque-tube, Conrad series

Family 8 – Thin-section/torque-tube, angular-contact series

Family 9 – Thin-section/torque-tube, fractured-race series

Family 7 Family 8 Family 9

Fig. iii. Faa approval letter – families 7-9.

Fig. iV. thin-section and torque-tube bearing family visual identification.

7

taBle ii. thin-section and torque-tuBe typical applications

Typical Applications Family7

Family8

Family9 Note

Air mix valve X

APU X

APU alternator drive pads X

APU fan shaft X

APU generator pad X

APU H.P. shaft compressor X

APU high-speed pinion X

APU L.P. compressor X

APU main shaft roller X

APU mainshaft X

APU starter & fuel control idler X

APU starter pad X

APU starter shaft X

APU tower shaft X

APU tower shaft & idler X

APU turbine X

APU turbine, HP & LP X

Auxiliary hydraulic pump system X

Carousel X

Constant speed drive X

Elevator feel control arm assembly X

Engine thrust reverser - actuator X

Flap actuator X X X X

Fuel control X

Generator pad X

Integrated drive generator X

JT3D engine X

JT9D engine fuel control X X

Leading edge actuator X

Pneumatic starter JT9D engine X

Roller transmission assembly X

Shut-off valve X

Thrust reverser X

Thrust reverser actuator X

Track roller, turbine thrust reverser X

Note: Components often fall into multiple families, and some may not be listed here. If your component does not appear to match a typical family or appears visually different, contact your Timken sales engineer for assistance.

8

Miniature Bearing Part Numbering for Families 1 through 6

Torque: (Applicable to miniature sizes) Q Q followed by a number indicates peak starting torque

limit in hundreds of mg•mm. For example, Q14 indicates a bearing with less than 1400 mg•mm peak starting torque.

V V followed by a number indicates peak running torque limit in hundreds of mg•mm. For example, V13 indicates a bearing with less than 1300 mg•mm peak running torque. Torque is measured under a 75 gram thrust load for bearings having an O.D. of 3/8 in. or less. Larger cataloged bearings are measured under a test load of 400 grams.

Radial Play: P P followed by numbers indicates radial play

range in ten-thousandths of an inch. Examples: P28 indicates radial play of 0.0002 in. to 0.0008 in. P58 indicates radial play of 0.0005 in. to 0.0008 in. P515 indicates radial play of 0.0005 in. to 0.0015 in.

Preloaded Pairs: DB back-to-back mounting DF face-to-face mounting DT tandem mountingNumbers following letter code indicate nominal preload or preload range in pounds.

Material: S AISI 44C stainless-steel C SAE 52100 chrome steel U AISI 440C SST + ceramic balls E SAE 52100 + ceramic balls N Beryillum Copper

Flange: F flanged bearing,

miniature product

S 418 F C H 7 – LG31 Q13 ––

Dimensional Coding: Z O graded O.D.’s only Z B graded bores only Z D graded O.D.’s and bores Z DM graded for preloaded pairs

having matched O.D.’s and bores

Standard dimensional grading is in increments of 0.0001 in. “X” prefix for 0.000050 in. increments

Lubrication: LD no lubrication or dry bearings L0 followed by a number indicates

specified oil lubrication LG followed by a number indicates

other specified grease lubrication LY followed by a number indicates

other Timken-approved lubricants L0V or LYV followed by a number

indicates specified oil to be vacuum impregnated into the retainer

L0C or LYC followed by a number indicates specified oil to be used and the bearing centrifuged

LGF or LYF followed by a number indicates film of a specific grease

Tolerance: 5 ABEC 5P 7 ABEC 7P

Type:No Symbol full ball complement C crown-type stainless-steel retainer M non-separable, phenolic retainer MB separable inner ring, phenolic retainer MC one-piece snap-type phenolic retainer MCJ one-piece snap-type self-lubricating retainer MCK one-piece molded snap-type Minapar II® retainer MCX one-piece snap-type self-lubricating retainer MR non-separable, full ball complement R ribbon-type stainless-steel retainer

Bearing Size:This number designates thebasic envelope dimensions of the bearing.

S R4A – MC – 5 P38 LYC5 – DB10ZDM

Features: H single shield HH double shield Z single seal ZZ double seal E extended inner ring(1)

(1)This symbol, indicating variations in dimensions may appear follow-ing other feature codes above.

9

Thin-Section Bearing Part Numbering for Families 7 through 9

Torque: (Applicable to miniature sizes) Q Q followed by a number indicates peak starting torque


V V followed by a number indicates peak running torque limit in hundreds of mg•mm. For example, V13 indicates a bearing with less than 1300 mg•mm peak running torque. Torque is measured under a 75 gram thrust load for bearings having an O.D. of 3/8 in. or less. Larger cataloged bearings are measured under a test load of 400 grams.

Preloaded Pairs: DB back-to-back mounting DF face-to-face mounting DT tandem mountingNumbers following letter code indicate nominal preload or preload range in pounds.

Dimensional Coding: Z O graded O.D.’s only Z B graded bores only Z D graded O.D.’s and bores Z DM graded for preloaded pairs

having matched O.D.’s and bores

Standard dimensional grading is in increments of 0.0001 in. “X” prefix for 0.000050 in. increments

Lubrication: LD no lubrication or dry bearings L0 followed by a number indicates

specified oil lubrication LG followed by a number indicates

other specified grease lubrication LY followed by a number indicates

other Timken-approved lubricants L0V or LYV followed by a number

indicates specified oil to be vacuum impregnated into the retainer

L0C or LYC followed by a number indicates specified oil to be used and the bearing centrifuged

LGF or LYF followed by a number indicates film of a specific grease

Tolerance: 5 ABEC 5P(1), 5T, or 5F 7 ABEC 7P(1), 7T, or 7F depending on ring size (1) applicable to sizes

Type:No Symbol full ball complement M non-separable, phenolic retainer MC one-piece snap-type phenolic retainer MCK one-piece molded snap-type Minapar II® retainer MR non-separable, full ball complement MSO angular contact, non-separable, PTFE toroids MT angular contact, non-separable aluminum

bronze retainer ST PTFE slug separators MCT one-piece snap-type aluminum bronze retainer MS angular contact, non-separable stainless-steel

retainer S angular contact, non-separable stainless-steel

retainer

Bearing Size:This number designates thebasic envelope dimensions of the bearing.

Material: S AISI 44C stainless-steel C SAE 52100 chrome steel U AISI 440C SST + ceramic balls E SAE 52100 + ceramic balls

Features 2: H single shield HH double shield Z single seal ZZ double seal E extended inner ring(1)

(1)This symbol, indicating variations in dimensions may appear follow-ing other feature codes above.

S 88-100 BI S H 7 P000 LG31 Q13 ––

S 1014 – MC – 5 P38 LYC5 – DB10ZDM

Features 1: B fractured outer ring I integral shield A alternate undersize ball

Radial Play: P P followed by numbers indicates radial play

range in ten-thousandths of an inch. P000 P000 indicates standard contact angle P000 P000 followed by numbers in parenthesis

indicates contact angle range

Examples: P28 indicates radial play of 0.0002 in. to 0.0008 in. P000(515) indicates contact angle of 5˚ to 15˚

10

step 1 specify Material codeGo to table 1a. The majority of bearings listed under this family are manufactured from either 440C stainless steel or 52100 steel.

• For the example, we will choose “U,” which is 440C rings and silicon-nitride balls.

step 2 specify sizeBoundary dimensions for all bearings included in this family are shown in tables 1b and 1c.

• For this example, we will determine that basic size “R3” meets our required boundary dimensions.

step 3 specify FlangeBearings that are flanged have the flange diameter and width noted in tables 1b and 1c; all others are not flanged.

• Our “R3” bearing does have a flange, so an “F” is noted.

FAMIly 1

deep-grOOve, rAdIAl-reTAIner, InCh And MeTrIC deSIgnTo build your TSO part number in

this family of bearings, follow the

steps shown here. Detailed steps are

provided for this family to aid you in

the specification process.

step 4 specify retainer typeThe standard retainer type for each basic bearing is shown in table 1a. Other retainer types listed in the table may be applied.

• We will choose a one-piece, machined, snap-type crown, phenolic, so we add “MC” to our part number.

step 5 speciFy FeaturesTable 1a shows designations for seals, shields and other features.

• For our example, we will choose a wide inner ring and add designation “E” to the part number.

step 6 specify toleranceThe available ABEC classes are noted for each basic bearing in table 1a.

• Our example bearing will be “ABEC 7,” so we will add a “7” to the part number.

S R3 F MC E 7 P28 L01

1 2 3 4 5 6 7 8

Fig. 1a. Family 1 part number example.

11

taBle 1a.

Material Size Flange Retainer Type Feature Tolerance Radial Internal Clearance

Supplementary if Required

C = 52100 chromium-alloy steel rings and balls

D = 52100 chromium-alloy steel rings and titanium-carbide coated balls

E = 52100 chromium-alloy steel rings and silicon-nitride balls

S = 440C stainless-steel rings and balls

T = 440C stainless-steel rings and titanium-carbide coated balls

U = 440C stainless-steel rings and silicon-nitride balls

See tables 1b & 1c

F = flanged bearing

No = non- code flanged bearing

C = one-piece, pressed, snap-type crown, stainless-steel

MC = one-piece, machined, snap-type crown, phenolic

MCD = one-piece, machined, snap-type crown, acetal resin

MCJ = one-piece, machined, snap-type crown, PGM-HT

MCK = one-piece, molded, snap-type crown, glass reinforced nylon

MCP = one-piece, machined, snap-type crown, Salox M

R = two-piece, pressed, ribbon-type, stainless-steel

ST = tube type, Teflon

H = single shield

HH = double shield

Z = single seal

ZZ = double seal

E = wide inner ring

OH = single shield on side opposite flange

OZ = single seal on side opposite flange

No = open bearing Code (no shields or

seals)

5 = ABEC 5P

7 = ABEC 7P

P28 = standard radial internal clearance of 0.0002 to 0.0008 in. (0.00508 to 0.02032 mm)

P___ = indicates alternate radial clearance(1)

Lubricant other than standard

Specific torque requirement

Bore & O.D. size coding

Duplex pair designation

step 7 specify radial internal clearanceStandard radial clearance of 0.0051 mm to 0.0203 mm (0.0002 in. to 0.0008 in.) applies to this family. Alternate radial clearance ranges are available.

• Our bearing will have standard clearance, with part number code “P28.”

step 8 specify any supplementary requirementsPossible supplemental options are shown in table 1a. Coding for the possible options may be found in the Appendix (page 31).

• We will specify a duplex pair with back-to-back mounting. This is added to the part number as “DB.”

(1) P followed by 2 to 4 digits indicates radial internal clearance range. For example our standard radial internal clearance of P28 indicates a radial internal clearance of 0.0002 to 0.0008 in. Alternate radial internal clearance ranges are available. For radial internal clearance ranges outside the standard range or less than half this range, consult your Timken sales engineer.

12

taBle 1b. Boundary diMensions, Miniature and instruMent Ball Bearings, deep-grooVe, radial-retainer (inch)

Basic Size

Diameters Open Bearings Shielded Bearings

Radius(1)

r

Ball Comple-

ment

Ball Size

Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

Wi and Wo

Extended Inner Ring Wi

Flange Width

FW

Equal Width Rings

Wi and Wo


Flange Width

FD

Static

DynamicRadial

Silicone Nitride Balls

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

2 1.016 3.175 4.343 1.191 1.984 0.330 N/A N/A N/A 0.08 5 0.64 11 7 590.0400 0.1250 0.1710 0.0469 0.0781 0.0130 0.0030 0.025 2 2 13

25 1.191 3.967 5.156 1.588 2.380 0.330 2.380 3.175 0.787 0.076 6 0.79 16 11 1000.0469 0.1562 0.2030 0.0625 0.0937 0.0130 0.0937 0.1250 0.0310 0.0030 1/32 4 2 22

3c 1.397 4.763 5.944 1.984 2.779 0.584 2.779 3.571 0.787 0.076 5 1.19 34 23 1770.0550 0.1875 0.2340 0.0781 0.1094 0.0230 0.1094 0.1406 0.0310 0.0030 3/64 8 5 40

3r 1.397 4.763 5.944 1.984 2.779 0.584 2.779 3.571 0.787 0.076 6 1.00 26 17 1510.0550 0.1875 0.2340 0.0781 0.1094 0.0230 0.1094 0.1406 0.0310 0.0030 0.039 6 4 34

4C 1.984 6.350 7.518 2.380 3.175 0.584 3.571 4.364 0.787 0.076 5 1.59 57 39 2870.0781 0.2500 0.2960 0.0937 0.1250 0.0230 0.1406 0.1718 0.0310 0.0030 1/16 13 9 65

4R 1.984 6.350 7.518 2.380 3.175 0.584 3.571 4.364 0.787 0.076 8 1.00 45 27 1990.0781 0.2500 0.2960 0.0937 0.1250 0.0230 0.1406 0.1718 0.0310 0.0030 0.039 10 6 45

3332c 2.380 4.763 5.944 1.588 2.380 0.457 N/A N/A N/A 0.076 7 0.79 22 14 1180.0937 0.1875 0.2340 0.0625 0.0937 0.0180 0.0030 1/32 5 3 26

3332chh 2.380 4.763 5.944 N/A N/A N/A 2.380 3.175 0.787 0.076 8 0.64 17 10 850.0937 0.1875 0.2340 0.0937 0.1250 0.0310 0.0030 0.025 4 2 19

3332r 2.380 4.763 5.944 1.588 2.380 0.457 2.380 3.175 0.787 0.076 8 0.79 25 15 1280.0937 0.1875 0.2340 0.0625 0.0937 0.0180 0.0937 0.1250 0.0310 0.0030 1/32 6 3 29

5 2.380 7.938 9.119 2.779 3.571 0.584 3.571 4.364 0.787 0.127 6 1.59 79 49 3650.0937 0.3125 0.3590 0.1094 0.1406 0.0230 0.1406 0.1718 0.0310 0.0050 1/16 18 11 82

418c 3.175 6.350 7.518 2.380 3.175 0.584 2.771 3.571 0.787 0.076 7 1.00 39 24 1820.1250 0.2500 0.2960 0.0937 0.1250 0.0230 0.1091 0.1406 0.0310 0.0030 0.039 9 5 41

418r 3.175 6.350 7.518 2.380 3.175 0.584 2.779 3.571 0.787 0.076 8 1.00 45 27 1990.1250 0.2500 0.2960 0.0937 0.1250 0.0230 0.1094 0.1406 0.0310 0.0030 0.039 10 6 45

518 3.175 7.938 9.119 2.771 3.571 0.584 3.571 4.364 0.787 0.076 6 1.59 79 49 3650.1250 0.3125 0.3590 0.1091 0.1406 0.0230 0.1406 0.1718 0.0310 0.0030 1/16 18 11 82

618 3.175 9.525 10.719 2.779 3.571 0.584 3.571 4.364 0.787 0.127 7 1.59 98 61 4130.1250 0.3750 0.4220 0.1094 0.1406 0.0230 0.1406 0.1718 0.0310 0.0050 1/16 22 14 93

R2 3.175 9.525 11.176 3.967 4.763 0.762 3.967 4.763 0.762 0.305 7 1.59 98 61 4130.1250 0.3750 0.4400 0.1562 0.1875 0.0300 0.1562 0.1875 0.0300 0.0120 1/16 22 14 93

R2A 3.175 12.700 N/A 4.366 N/A N/A 4.366 N/A N/A 0.305 7 1.59 98 61 4130.1250 0.5000 0.1719 0.1719 0.0120 1/16 22 14 93

5532 3.967 7.938 9.119 2.779 3.571 0.584 3.175 3.967 0.914 0.076 7 1.19 62 39 2560.1562 0.3125 0.3590 0.1094 0.1406 0.0230 0.1250 0.1562 0.0360 0.0030 3/64 14 9 58

5632 4.763 7.938 9.119 2.779 3.571 0.584 3.175 3.967 0.914 0.076 7 1.19 62 39 2560.1875 0.3125 0.3590 0.1094 0.1406 0.0230 0.1250 0.1562 0.0360 0.0030 3/64 14 9 58

6316 4.763 9.525 10.719 3.175 3.967 0.584 3.175 3.967 0.787 0.076 8 1.59 118 74 4580.1875 0.3750 0.4220 0.1250 0.1562 0.0230 0.1250 0.1562 0.0310 0.0030 1/16 26 17 103

R3 4.763 12.700 14.351 3.967 4.610 1.067 4.978 5.771 1.067 0.305 7 2.38 211 135 8230.1875 0.5000 0.5650 0.1562 0.1815 0.0420 0.1960 0.2272 0.0420 0.0120 3/32 47 30 185

614 6.350 9.525 10.719 3.178 3.967 0.584 3.175 3.967 0.914 0.076 11 1.00 71 44 2350.2500 0.3750 0.4220 0.1251 0.1562 0.0230 0.1250 0.1562 0.0360 0.0030 0.039 16 10 53

814c 6.350 12.700 13.894 3.175 3.967 0.584 4.763 5.555 1.143 0.254 10 1.59 163 103 5300.2500 0.5000 0.5470 0.1250 0.1562 0.0230 0.1875 0.2187 0.0450 0.0100 1/16 37 23 119

814r 6.350 12.700 13.894 3.175 3.967 0.584 4.763 5.555 1.143 0.254 11 1.59 180 113 5640.2500 0.5000 0.5470 0.1250 0.1562 0.0230 0.1875 0.2187 0.0450 0.0100 1/16 40 26 127

R4 6.350 15.875 17.526 4.978 5.771 1.067 4.978 5.771 1.067 0.305 8 2.38 269 173 9310.2500 0.6250 0.6900 0.1960 0.2272 0.0420 0.1960 0.2272 0.0420 0.0120 3/32 60 39 209

R4A 6.350 19.050N/A

5.558N/A N/A

7.142N/A N/A

0.406 6 3.57 396 257 14880.2500 0.7500 0.2188 0.2812 0.0160 9/64 89 58 334

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D

Non-Flanged Wide Inner

W

r

B

D

Non-Flanged Equal Width

WO

WI

WO

Fig. 1b. non-flanged equal width.

Fig. 1c. Flanged equal width.

Fig. 1e. Flanged extended inner.

Fig. 1d. non-flanged extended inner.

Continued on next page.(1) r is the maximum radius of shaft or housing fillet that bearing corner will clear.

r

B

D

WI

WO

r

B

D

FD

WI

WO

Broken Corners

Flanged Extended Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width Non-Flanged Extended Inner

W

r

B

D


13taBle 1b. Boundary diMensions, Miniature and instruMent Ball Bearings,

deep-grooVe, radial-retainer (inch)

Basic Size


Radius(1)

r

Ball Comple-

ment

Ball Size

Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

Wi and Wo


Flange Width

FW

Equal Width Rings

Wi and Wo


Flange Width

FD

Static

DynamicRadial


mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

8516 7.938 12.700 13.894 3.967 4.763 0.787 3.967 4.763 0.787 0.127 11 1.59 183 115 5610.3125 0.5000 0.5470 0.1562 0.1875 0.0310 0.1562 0.1875 0.0310 0.0050 1/16 41 26 126

R6 9.525 22.225 24.613 7.142N/A

1.575 7.142N/A

1.575 0.406 7 3.97 918 602 25780.3750 0.8750 0.9690 0.2812 0.0620 0.2812 0.0620 0.0160 5/32 206 135 580

R8 12.700 28.575N/A

6.350N/A N/A

7.938N/A N/A

0.406 10 3.97 2111 1390 40380.5000 1.1250 0.2500 0.3125 0.0160 5/32 475 313 908

R10 15.875 34.925N/A

7.142N/A N/A

8.733N/A N/A

2.489 10 4.76 2978 1970 55430.625 1.375 0.2812 0.3438 0.098 3/16 670 443 1246

taBle 1c. Boundary diMensions, Miniature and instruMent Ball Bearings, deep-grooVe, radial-retainer (Metric)

Basic Size


Radius(1)

r

Ball Comple-

ment

Ball Size

Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

Wi and Wo

Flange Width

FW

Equal Width Rings

Wi and Wo

Flange Width

FW

Static

DynamicRadial


mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

n lbf

n lbf

n lbf

EL1 1.000 4.000 5.00 1.600 0.50 N/A N/A 0.05 6 0.79 16 11 1000.0394 0.1575 0.197 0.0630 0.020 0.002 1/32 4 2 22

EL15 1.500 5.000 6.50 2.000 0.60 2.600 0.80 0.08 7 0.79 22 14 1180.0591 0.1969 0.256 0.0787 0.024 0.1024 0.031 0.003 1/32 5 3 26

EL15R 1.500 5.000 6.50 2.000 0.60 2.000 0.80 0.08 8 0.79 25 15 1280.0591 0.1969 0.256 0.0787 0.024 0.0787 0.031 0.003 1/32 6 3 29

UL20 2.000 5.000 6.10 1.500 0.50 2.300 0.60 0.08 7 0.79 22 14 1180.0787 0.1969 0.240 0.0591 0.020 0.0906 0.024 0.003 1/32 5 3 26

EL2 2.000 6.000 7.50 2.300 0.06 N/A N/A 0.10 7 0.79 22 14 1180.0787 0.2362 0.295 0.0906 0.002 0.004 1/32 5 3 26

EL2CHH 2.000 6.000 7.50 N/A N/A 3.000 0.80 0.10 8 0.64 17 10 850.0787 0.2362 0.295 0.1181 0.031 0.004 0.025 4 2 19

UL30 3.000 7.000 8.10 2.000 0.05 3.000 0.80 0.10 9 1.000 50 31 2150.1181 0.2756 0.319 0.0787 0.002 0.1181 0.031 0.004 0.039 11 7 48

EL3 3.000 10.000 11.50 4.000 1.00 4.000 1.00 0.15 7 1.59 98 61 4130.1181 0.3937 0.453 0.1575 0.039 0.1575 0.039 0.006 1/16 22 14 93

UL40 4.000 9.000 10.30 2.500 0.06 4.000 1.00 0.10 7 1.59 98 61 4130.1575 0.3543 0.406 0.0984 0.002 0.1575 0.039 0.004 1/16 22 14 93

EL4 4.000 13.000 N/A 5.000 N/A 5.000 N/A 0.20 6 2.38 181 116 7430.1575 0.5118 0.1969 0.1969 0.008 3/32 41 26 167

34 4.000 16.000 N/A 5.000 N/A 5.000 N/A 0.30 6 3.18 297 192 11760.1575 0.6299 0.1969 0.1969 0.012 1/8 67 43 264

UL50 5.000 11.000 12.50 3.000 0.80 5.000 1.00 0.15 8 1.59 123 77 4600.1969 0.4331 0.492 0.1181 0.031 0.1969 0.039 0.006 1/16 28 17 103

EL5 5.000 16.000 N/A 5.000 N/A 5.000 N/A 0.30 6 3.18 297 192 11760.1969 0.6299 0.1969 0.1969 0.012 1/8 67 43 264

345 5.000 16.000 N/A 5.000 N/A 5.000 N/A 0.30 6 3.18 297 192 11760.1969 0.6299 0.1969 0.1969 0.012 1/8 67 43 264

35 5.000 19.000 N/A 6.000 N/A 6.000 N/A 0.30 6 3.57 396 257 14880.1969 0.7480 0.2362 0.2362 0.012 9/64 89 58 334

UL60 6.000 13.000 15.00 3.500 1.00 5.000 1.10 0.15 8 1.98 176 112 6540.2362 0.5118 0.591 0.1378 0.039 0.1969 0.043 0.006 5/64 40 25 147

EL6 6.000 19.000 N/A 6.000 N/A 6.000 N/A 0.30 6 3.57 396 257 14880.2362 0.7480 0.2362 0.2362 0.012 9/64 89 58 334

36 6.000 19.000 N/A 6.000 N/A 6.000 N/A 0.30 6 3.57 396 257 14880.2362 0.7480 0.2362 0.2362 0.012 9/64 89 58 334

UL70 7.000 14.000 16.00 3.500 1.00 5.000 1.10 0.15 10 1.59 163 103 5300.2756 0.5512 0.630 0.1378 0.039 0.1969 0.043 0.006 1/16 37 23 119

EL7 7.000 19.000 N/A 6.000 N/A 6.000 N/A 0.30 6 3.57 396 257 14880.2756 0.7480 0.2362 0.2362 0.012 9/64 89 58 334

37 7.000 22.000 N/A 7.000 N/A 7.000 N/A 0.30 7 3.97 596 389 20310.2756 0.8661 0.2756 0.2756 0.012 5/32 134 87 457

EL8 8.000 22.000 N/A 7.000 N/A 7.000 N/A 0.30 7 3.97 596 389 20310.3150 0.8661 0.2756 0.2756 0.012 5/32 134 87 457

38 8.000 22.000 N/A 7.000 N/A 7.000 N/A 0.30 7 3.97 596 389 20310.3150 0.8661 0.2756 0.2756 0.012 5/32 134 87 457

EL9 9.000 26.000 N/A 8.000 N/A 8.000 N/A 0.30 7 4.76 1805 1191 42730.3543 1.0236 0.3150 0.3150 0.012 3/16 406 268 961

Table 1b continued.

(1) r is the maximum radius of shaft or housing fillet that bearing corner will clear.

14

step 1 specify Material codeThe majority of bearings listed under this family are manufactured from either 440C stainless-steel or 52100 steel.

step 2 specify sizeBoundary dimensions for all bearings included in this family are shown in tables 2b.

step 3 specify FlangeBearings that are flanged have the flange diameter and width noted in tables 2b; all others are not flanged.

step 4 specify retainer typeThe standard retainer type for each basic bearing is shown in table 2a. Other retainer types may be applied.

FAMIly 2

AngulAr-COnTACT, nOn-SepArAbleTo build your TSO part number

in this family of bearings, follow

the steps shown here.

step 5 specify toleranceThe applicable ABEC class is noted for each basic bearing listed in table 2a.

step 6 specify radial internal clearanceSee table 2b for standard radial plays. Alternate radial clearance ranges are available.

step 7 specify any supplementary requirementsCommon supplemental requirements are shown in table 2a.

Fig. 2a. Family 2 part number example.

1 2 3 4 5 6 7

taBle 2a.

Material Size Flange Retainer Type Tolerance Radial Internal Clearance








See tables 2b & 2c

F = flanged bearing


M = one-piece, machined, through hole, phenolic

MP = one-piece, machined, through hole, porous polyimide

MR = full ball complement, no retainer used

MX = one-piece, machined, through hole, Salox M

5 = ABEC 5P

7 = ABEC 7P

P_ _ = indicates alternate radial clearance(1)

See table 2b for standard radial play ranges.



Bore & O.D. size Coding


(1) P followed by 2 to 4 digits indicates radial internal clearance range. For example, a radial internal clearance of P28 indicates a radial internal clearance of 0.0002 to 0.0008 in. Alternate radial internal clearance ranges are available. For radial internal clearance ranges outside the standard range or less than half this range, consult your Timken sales engineer.

C R3 F M 7 P28 DB13

15

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO

taBle 2b. Boundary diMensions, Miniature and instruMent Ball Bearings, angular-contact, non-separaBle

Basic Size

Diameters Open Bearings

r

Radius(1)Ball

Comple-ment

Ball Size

Radial Play Ref. Contact Angle

Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

W

Flange Width

FW

Static

DynamicFrom To From To Radial


mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

Nlbf

5

2.380 7.938 9.12 2.779 0.58 0.13

7

1.590.005 0.013

9 1492 59 395

0.0002 0.0005 21 13 890.013 0.023

14 1982 50 392

0.0937 0.3125 0.359 0.1094 0.023 0.005 1/160.0005 0.0009 18 11 880.023 0.033

19 22.573 45 388

0.0009 0.0013 16 10 87

4183.175 6.350

N/A2.776

N/A0.08

81.00

0.005 0.01312 19

48 30 2010.0002 0.0005 11 7 45

0.1250 0.2500 0.1093 0.003 0.0390.013 0.020

19 2442 25 196

0.0005 0.0008 9 6 44

518

3.175 7.938 9.12 2.771 0.58 0.08

7

1.590.005 0.013

9 1497 62 405

0.0002 0.0005 22 14 910.013 0.023

14 1986 53 401

0.1250 0.3125 0.359 0.1091 0.023 0.003 1/160.0005 0.0009 19 12 900.023 0.033

19 22.577 47 396

0.0009 0.0013 17 11 89

618

3.175 9.525 10.72 2.779 0.58 0.13

7

1.590.005 0.013

9.5 15103 66 415

0.0002 0.0005 23 15 930.013 0.023

15 2092 57 410

0.1250 0.3750 0.422 0.1094 0.023 0.005 1/160.0005 0.0009 21 13 920.023 0.033

20 2482 50 403

0.0009 0.0013 18 11 91

R2

3.175 9.525 11.18 3.967 0.76 0.31

8

1.59

0.005 0.01311 17

144 92 5070.0002 0.0005 32 21 1140.013 0.023

17 23129 80 498

0.0005 0.0009 29 18 1120.023 0.033

23 28116 70 487

0.1250 0.3750 0.440 0.1562 0.030 0.012 1/16

0.0009 0.0013 26 16 1090.033 0.043

28 32106 63 474

0.0013 0.0017 24 14 1070.043 0.053

32 3698 60 462

0.0017 0.0021 22 14 104

34

4.000 16.000

N/A

5.000

N/A

0.31

8

3.180.011 0.022

13 17.5626 402 1872

0.00045 0.00085 141 90 4210.022 0.032

17.5 21.5585 368 1856

0.1575 0.6299 0.1969 0.012 1/8 0.00085 0.00125 132 83 417

0.032 0.04221.5 24.5

551 340 18380.00125 0.00165 124 76 413

R3

4.763 12.700 14.35 3.967 1.07 0.31

8

1.59

0.005 0.0137 11.5

251 163 9030.0002 0.0005 56 37 2030.013 0.023

11.5 15.5230 145 897

0.0005 0.0009 52 33 2020.023 0.033

15.5 18.5211 130 889

0.0009 0.0013 47 29 200

0.1875 0.5000 0.565 0.1562 0.042 0.012 3/32

0.033 0.04318.5 21.5

196 118 8820.0013 0.0017 44 27 1980.043 0.053

21.5 23.5183 109 874

0.0017 0.0021 41 25 1960.053 0.064

23.5 26172 102 866

0.0021 0.0025 39 23 195

Fig. 2b. non-flanged equal width. Fig. 2c. Flanged equal width.

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

Wi

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO

Continued on next page.(1) r is the maximum radius of shaft or housing fillet that bearing corner will clear.

16

taBle 4c. Boundary diMensions, angular-contact, non-separaBle

Basic Size


Radius(1)

rBall

Comple-ment

Ball Size


Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

W

Flange Width

FW

Static



mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

Nlbf

345

5.000 16.000

N/A

5.000

N/A

0.31

8

3.180.011 0.022

13 17.5626 402 1872

0.0005 0.0009 141 90 4210.022 0.032

17.5 21.5585 368 1856

0.1969 0.6299 0.1969 0.012 1/8 0.0009 0.0013 132 83 4170.032 0.042

21.5 24.5551 340 1838

0.0013 0.0017 124 76 413

36

6.000 19.000

N/A

6.000

N/A

0.31

8

3.570.006 0.165

10.5 17782 467 2408

0.0003 0.0065 176 105 5410.165 0.027

17 21.5756 449 2353

0.2362 0.7480 0.2362 0.012 9/640.0065 0.0011 170 101 5290.027 0.037

21.5 25.5983 619 2656

0.0011 0.0015 221 139 597

814

6.350 12.700 13.89 3.185 0.58 0.25

10

1.590.005 0.013

9.5 15171 110 534

0.0002 0.0005 39 25 1200.013 0.023

15 20154 95 524

0.2500 0.5000 0.547 0.1254 0.023 0.010 1/160.0005 0.0009 35 21 1180.023 0.033

20 24139 84 512

0.0009 0.0013 31 19 115

R4

6.350 15.875 17.53 4.978 1.07 0.31

9

1.59

0.005 0.0137 11.5

314 204 10110.0002 0.0005 71 46 2270.013 0.023

11.5 15.5289 183 1001

0.0005 0.0009 65 41 2250.023 0.033

15.5 18.5266 164 990

0.0009 0.0013 60 37 223

0.2500 0.6250 0.690 0.1960 0.042 0.012 3/32

0.033 0.04318.5 21.5

247 150 9790.0013 0.0017 56 34 2200.043 0.053

21.5 23.5232 139 968

0.0017 0.0021 52 31 2180.053 0.064

23.5 26219 130 956

0.0021 0.0025 49 29 215

8516

7.938 12.700 13.89 3.967 0.79 0.13

11

1.590.005 0.013

9.5 15192 123 566

0.0002 0.0005 43 28 1270.013 0.023

15 20172 107 555

0.3125 0.5000 0.547 0.1562 0.031 0.005 1/160.0005 0.0009 39 24 1250.023 0.033

20 24155 94 542

0.0009 0.0013 35 21 122

38

8.000 22.000

N/A

7.000

N/A

0.31

9

3.970.010 0.020

11 161357 885 3330

0.0004 0.0008 305 199 7490.020 0.030

16 19.51288 823 3295

0.3150 0.8661 0.2756 0.012 5/320.0008 0.0012 290 185 7410.030 0.041

19.5 22.51226 771 3259

0.0012 0.0016 276 173 733

R6

9.525 22.225

N/A

5.558

N/A

0.41

9

3.970.005 0.015

7.5 131197 789 3056

0.0002 0.0006 269 177 6870.015 0.025

13 16.51133 730 3027

0.3750 0.8750 0.2188 0.016 5/320.0006 0.0010 255 164 6800.025 0.036

16.5 201075 680 2997

0.0010 0.0014 242 153 674

Table 2b continued.


17


step 2 specify sizeBoundary dimensions for all bearings included in this family are shown in table 3b.

step 3 specify FlangeBearings that are flanged have the flange diameter and width noted in table 3b; all others are not flanged.


FAMIly 3

AngulAr-COnTACT, SepArAbleTo build your TSO part number




step 6 specify radial internal clearanceSee table 3b for standard radial plays. Alternate radial clearance ranges are available.


Fig. 3a. Family 3 part number.

1 2 3 4 5 6 7

taBle 3a.

Material Size Flange Retainer Type Tolerance Radial Internal Clearance








See table 3b

F = flanged bearing


MB = one-piece, machined, stepped hole, phenolic

5 = ABEC 5P

7 = ABEC 7P


See table 3b for standard radial play ranges.





(1) P followed by 2 to 4 digits indicates radial internal clearance range. For example, a radial internal clearance of P28 indicates a radial internal clearance of 0.0002 to 0.0008 in. Alternate radial internal clearance ranges are available. For radial internal clearance ranges outside the standard range or less than half this range, consult your Timken sales engineer.

S R3 F MB 7 P28 L01

18

taBle 3b. Boundary diMensions, angular-contact, separaBle

Basic Size


Radius(1)

rBall

Comple-ment

Ball Size


Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

W

Flange Width

FW

Static



mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

Nlbf

52.380 7.938 9.12 2.779 0.58 0.13

61.59

0.010 0.02512.5 19.5

70 45 3530.0004 0.0010 16 10 79

0.0937 0.3125 0.359 0.1094 0.023 0.005 1/160.025 0.046

19.5 26.566 45 347

0.0010 0.0018 15 10 78

5183.175 7.938 9.12 2.771 0.58 0.08

71.59

0.010 0.02512.5 19.5

86 53 4010.0004 0.0010 19 12 90

0.1250 0.3125 0.359 0.1091 0.023 0.003 1/160.025 0.046

19.5 26.572 47 389

0.0010 0.0018 16 11 87

6183.175 9.525 10.72 2.779 0.58 0.13

71.59

0.010 0.02513 21

92 57 4100.0004 0.0010 21 13 92

0.1250 0.3750 0.422 0.1094 0.023 0.005 1/160.025 0.046

21 2877 50 396

0.0010 0.0018 17 11 89

R23.175 9.525 11.18 3.967 0.76 0.31

71.59

0.010 0.02512.5 19.5

78 48 3790.0004 0.0010 18 11 85

0.1250 0.3750 0.440 0.1562 0.030 0.012 1/160.025 0.046

19.5 26.565 43 368

0.0010 0.0018 15 10 83

34

4.000 16.000

N/A

5.000

N/A

0.31

6

3.180.011 0.022

13 17.5193 123 952

0.00045 0.00085 43 28 2140.022 0.032

17.5 21.5178 111 947

0.1575 0.6299 0.1969 0.012 1/8 0.00085 0.00125 40 25 213

0.032 0.04221.5 24.5

165 111 9410.00125 0.00165 37 25 212

R3

4.763 12.700 14.35 3.967 1.07 0.31

7

1.590.010 0.030

10 18197 123 818

0.0004 0.0012 44 28 1840.030 0.051

18 23168 102 799

0.1875 0.5000 0.565 0.1562 0.042 0.012 3/320.0012 0.0020 38 23 1800.051 0.064

23 26152 102 783

0.0020 0.0025 34 23 176

3455.000 16.000

N/A5.000

N/A0.31

63.18

0.015 0.03611 16.5

269 168 11690.0006 0.0014 61 38 263

0.1969 0.6299 0.1969 0.012 1/8 0.036 0.056

16.5 21240 163 1149

0.0014 0.0022 54 37 258

366.000 19.000

N/A6.000

N/A0.31

63.57

0.013 0.0338 12.5

264 166 12450.0005 0.0013 59 37 280

0.2362 0.7480 0.2362 0.012 9/640.033 0.053

12.5 16232 156 1232

0.0013 0.0021 52 35 277

8146.350 12.700 13.89 3.185 0.58 0.25

101.59

0.010 0.02513 21

154 95 5240.0004 0.0010 35 21 118

0.2500 0.5000 0.547 0.1254 0.023 0.010 1/160.025 0.046

21 28130 77 506

0.0010 0.0018 29 17 114

R4

6.350 15.875 17.53 4.978 1.07 0.31

8

1.590.010 0.030

10 18251 158 923

0.0004 0.0012 57 35 2070.030 0.051

18 23216 130 901

0.2500 0.6250 0.690 0.1960 0.042 0.012 3/320.0012 0.0020 49 29 2030.051 0.064

23 26195 116 883

0.0020 0.0025 44 26 199

388.000 22.000

N/A7.000

N/A0.31

73.97

0.020 0.04111 15.5

537 337 20150.0008 0.0016 121 76 453

0.3150 0.8661 0.2756 0.012 5/320.041 0.061

15.5 19484 295 1988

0.0016 0.0024 109 66 447

Fig. 3b. non-flanged equal width. Fig. 3c. Flanged equal width.


r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO

19

FAMIly 4

deep-grOOve, Full-COMpleMenTTo build your TSO part number







1 2 3 4 5 6 7

taBle 4a.

Material Size Flange Feature Tolerance Radial Internal Clearance Supplementary if Required

S

S

S

S

S

S

S

S




100

2

3332

518

5632

R2

R3

R4

F = flanged bearing

No code = non- flanged bearing

HH = double shield

No code = open bearing (no shields or seals)

5 = ABEC 5P

7 = ABEC 7P










step 4 specify Feature (shields)The standard feature codes for each basic bearing are shown in table 4a.


S R4 F HH 7 P28 L01

20

Fig. 4e. Flanged extended inner.

Fig. 4d. non-flanged extended inner.

r

B

D

WI

WO

r

B

D

FD

WI

WO

Broken Corners


W

r

B

D

FW

FD

Broken Corners


W

r

B

D


taBle 4b. Boundary diMensions, deep-grooVe, Full-coMpleMent

Basic Size


Radius(1)

rBall

Comple-ment

Ball Size

Load Ratings

Bore

B

O.D.

D

Flange O.D.

FD

Equal Width Rings

Wi and Wo


Flange Width

FW

Equal Width Rings

Wi and Wo


Flange Width

FW

Static

DynamicRadial


mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

100 0.635 2.560N/A

0.792 N/A N/A N/A N/A N/A 0.08 7 0.64 8 6 650.0250 0.1008 0.0312 0.003 0.025 2 1 15

2 1.016 3.175 4.34 1.191 N/A 0.33 N/A N/A N/A 0.08 10 0.64 16 10 940.0400 0.1250 0.171 0.0469 0.013 0.003 0.025 4 2 21

3332 2.380 4.763 5.94 1.588 2.380 0.46 2.380 3.175 0.79 0.08 14 0.79 45 27 1870.0937 0.1875 0.234 0.0625 0.0937 0.018 0.0937 0.1250 0.031 0.003 1/32 10 6 42

518 3.175 7.938 9.12 2.779 3.571 0.58 3.571 4.364 0.79 0.08 11 1.59 145 91 5460.1250 0.3125 0.359 0.1094 0.1406 0.023 0.1406 0.1718 0.031 0.003 1/16 33 20 123

5632 4.763 7.938 9.12 2.779 3.571 0.58 3.175 3.967 0.91 0.08 16 1.19 143 89 4450.1875 0.3125 0.359 0.1094 0.1406 0.023 0.1250 0.1562 0.036 0.003 3/64 32 20 100

R2 3.175 9.525 11.18 3.967 N/A 0.76 3.967 N/A 0.76 0.30 12 1.59 168 105 5920.1250 0.3750 0.440 0.1562 0.030 0.1562 0.030 0.012 1/16 38 24 133

R3 4.763 12.700 14.35 3.967 4.763 1.07 4.978 5.771 1.07 0.30 11 2.38 332 212 11120.1875 0.5000 0.565 0.1562 0.1875 0.042 0.1960 0.2272 0.042 0.012 3/32 75 48 250

R4 6.350 15.875 17.53 4.978 N/A 1.07 4.978 N/A 1.07 0.30 14 2.38 471 302 13510.2500 0.6250 0.690 0.1960 0.042 0.1960 0.042 0.012 3/32 106 68 304

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO




21





FAMIly 5

deep-grOOve, rAdIAl-reTAIner, nArrOw SerIeSTo build your TSO part number







1 2 3 4 5 6 7

taBle 5a.

Material Size Flange Retainer Type Feature Tolerance Radial Internal Clearance Supplementary if Required





T = 440C stainless-steel rings and titanium- carbide coated balls


See table 5b

F= flanged bearing

No code = non-flanged bearing

C = one-piece, pressed, snap-type crown, stainless-steel

R = two-piece, pressed, ribbon-type, stainless-steel

HN = single shield narrow

5 = ABEC 5P

7 = ABEC 7P


P_ _ =indicates alternate radial clearance(1)






C R2 F R 7 P28 L01

22

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO


taBle 5b. Boundary diMensions, deep-grooVe, radial-retainer, narroW series

Basic Size

DiametersWidth

WChamfer Ball

ComplementBall Size

Load Ratings

Bore

B

O.D.

D

Static

DynamicRadial Silicone

Nitride Balls

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

Nlbf

3 1.397 4.763 2.380 0.076 5 1.19 34 23 1770.0550 0.1875 0.0937 0.0030 3/64 8 5 40

4 1.984 6.350 2.779 0.076 5 1.59 57 39 2870.0781 0.2500 0.1094 0.0030 1/16 13 9 65

5 2.380 7.938 2.779 0.127 6 1.59 79 49 3650.0937 0.3125 0.1094 0.0050 1/16 18 11 82

418 3.175 6.350 2.380 0.076 7 1.00 39 24 1820.1250 0.2500 0.0937 0.0030 0.039 9 5 41

518 3.175 7.938 2.779 0.076 6 1.59 79 49 3650.1250 0.3125 0.1094 0.0030 1/16 18 11 82

618 3.175 9.525 2.779 0.127 7 1.59 98 61 4130.1250 0.3750 0.1094 0.0050 1/16 22 14 93

5532 3.967 7.938 2.779 0.076 7 1.19 62 39 2560.1562 0.3125 0.1094 0.0030 3/64 14 9 58

5632 4.763 7.938 2.779 0.076 7 1.19 62 39 2560.1875 0.3125 0.1094 0.0030 3/64 14 9 58

814c 6.350 12.700 3.175 0.254 10 1.59 163 103 5300.2500 0.5000 0.1250 0.0100 1/16 37 23 119

814r 6.350 12.700 3.175 0.254 11 1.59 180 113 5640.2500 0.5000 0.1250 0.0100 1/16 40 26 127

23

Family 6 bearings are unique because they are modified-dimension product. Those modified-dimension bearings that cannot be described using the Timken catalog part numbering system are described using the alpha-numeric special design part numbering system. This is a combination of the basic bearing number from table 6a and a sequential dash number assigned for each specific application. Basic bearing chassis can be determined by using tables 6a, 6b, 6c and 6d. The remaining nomenclature should be completed with the assistance of a Timken engineer.

FAMIly 6

deep-grOOve, rAdIAl-reTAIner, MOdIFIed dIMenSIOnTo build your TSO part number


the steps shown here. step 1 specify Basic BearingBasic Family 6 bearings are listed in tables 6a, 6b, 6c, 6d.

step 2 contact timkenRemaining information for your specific part should be discussed with your Timken sales engineer.

A 280


1 2

r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO



taBle 6a. Boundary diMensions, ModiFied diMensions

Basic Size

DiametersInner Width

Outer Width

Flange Dia.

FD

Flange Width

FWChamfer

Standard Retainer

TypeClosures ABEC

Load RatingsBore

B

O.D.

DStatic Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

A834 3.175 9.525 2.380 2.380 N/A N/A 0.08 R Double Shield 7P 48 201

0.1250 0.3750 0.0937 0.0937 0.003 11 45

A281 3.175 9.525 2.779 2.779 N/A N/A 0.08 C Double Shield 7P 42 184

0.1250 0.3750 0.1094 0.1094 0.003 9 41

A521 3.175 10.414 2.380 2.380 N/A N/A 0.13 C Single Shield 7P 76 246

0.1250 0.4100 0.0937 0.0937 0.005 17 55

B70 3.175 10.414 2.380 2.380 N/A N/A 0.08 R Double Shield 5P 48 201

0.1250 0.4100 0.0937 0.0937 0.003 11 45

A430 3.175 12.700 2.779 2.779 N/A N/A 0.13 C Single Shield 5P 36 167

0.1250 0.5000 0.1094 0.1094 0.005 8 38

A431 3.175 12.700 2.779 2.779 N/A N/A 0.08 C Double Shield 5P 39 182

0.1250 0.5000 0.1094 0.1094 0.003 9 41

D983 6.350 12.700 6.731 3.175 13.894 0.584 0.25 C Open 7P 156 5250.2500 0.5000 0.2650 0.1250 0.5470 0.0230 0.010 35 118

B698 6.350 19.050 4.978 4.978 N/A N/A 0.30 R Double Shield 7P 282 935

0.2500 0.7500 0.1960 0.1960 0.012 63 210

E685 7.938 12.700 2.779 2.779 13.894 0.584 0.25 R Open 5P 189 5640.3125 0.5000 0.1094 0.1094 0.5470 0.0230 0.010 42 127

G229 9.525 15.875 4.978 4.978 N/A N/A 0.25 ST Double Shield 7P 293 686

0.3750 0.6250 0.1960 0.1960 0.010 66 154

24

taBle 6b. Boundary diMensions, ModiFied diMensions For Faa approVed tso iteMs Based on estaBlished approVed designs

Basic Size


Outer Width Chamfer

Standard Retainer

TypeClosures ABEC

Load RatingsReference

Family

Reference Chassis

SizeBore

B

O.D.

DStatic Hybrid

Static Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

A280 2.380 6.985 1.588 1.588 0.127 C Single Shield 5P 18 11 87 1 33320.0937 0.2750 0.0625 0.0625 0.005 4 3 19

B44 4.763 12.700 2.779 2.779 0.08 C Single Shield 7P 59 36 253 1 56320.1875 0.5000 0.1094 0.1094 0.003 13 8 57

F718 4.763 12.700 3.967 3.967 0.18 R Double Shield 7P 126 81 462 1 63160.1875 0.5000 0.1562 0.1562 0.007 28 18 104

L120 9.525 22.225 7.142 7.142 0.41 ST Double Shield 7P 771 501 2318 1 R60.3750 0.8750 0.2812 0.2812 0.016 173 113 521

taBle 6d. Boundary diMensions, ModiFied diMensions For Faa approVed tso iteMs Based on estaBlished approVed FaMily (3) designs

Basic Size

Config. Suffix


Outer Width Chamfer

Standard Retainer

TypeClosures ABEC Radial Play

Load RatingsReference

Family

Reference Chassis

SizeBore

B

O.D.

DStatic Hybrid

Static Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

F816

000

2.380 7.938 2.779 2.779 0.127MB Open 7P 0.0003 0.0011

70 45 3543 5

800

803 0.0937 0.3125 0.1094 0.1094 0.005 16 10 80

811

taBle 6c. Boundary diMensions, ModiFied diMensions For Faa approVed tso iteMs Based on estaBlished approVed FaMily (2) designs

Basic Size


Outer Width Chamfer

Standard Retainer

TypeClosures ABEC

Radial Play Load RatingsRefence Family

Reference Chassis

SizeBore

B

O.D.

DFrom To Static Hybrid

Static Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

F557

4.763 12.700 3.976 3.967 0.30

M Open 7P

0.005 0.013 251 163 903

2 R3

0.0002 0.0005 56 37 2030.013 0.023 230 145 897

0.0005 0.0009 52 33 2020.023 0.033 211 130 889

0.0009 0.0013 47 29 200

0.1875 0.5 0.1562 0.1562 0.012

0.033 0.043 196 118 8820.0013 0.0017 44 27 1980.043 0.063 183 109 874

0.0017 0.0021 41 25 1960.053 0.064 172 102 866

0.0021 0.0025 39 23 195

L469

4.763 12.700 3.967 3.967 0.30

MP Open 7P

0.005 0.013 251 163 903

2 R3

0.0002 0.0005 56 37 2030.013 0.023 230 145 897

0.0005 0.0009 52 33 2020.023 0.033 211 130 889

0.0009 0.0013 47 29 200

0.1875 0.5 0.1562 0.1562 0.012

0.033 0.043 196 118 8820.0013 0.0017 44 27 1980.043 0.053 183 109 874

0.0017 0.0021 41 25 1960.053 0.064 172 102 866

0.0021 0.0025 39 23 195

25


step 2 specify sizeBoundary dimensions for all bearings included in this family are shown in table 7b and table 7c.



FAMIly 7

ThIn-SeCTIOn/ TOrque-Tube, COnrAd SerIeSTo build your TSO part number




step 6 specify radial internal clearanceSee table 7a for standard radial internal clearances for this family. Alternate radial clearance ranges are available.


C 2128 MC H 5 P511 L01


1 2 3 4 5 6 7

taBle 7a.

Material Size Retainer Type Feature Tolerance Radial Internal Clearance








See tables 7b &7c

MC = one-piece, machined, snap-type crown, phenolic

MCK = one-piece, molded, snap-type crown, glass reinforced nylon

ST = tube type, Teflon

H = single shield

HH = double shield

Z = single seal

ZZ = double seal

E = wide inner ring

No = open bearing code (no shields or seals)

3 = class 3

5 = ABEC 5P, 5T or 5F (ABEC 5P for 610 and 812 sizes)


For Conrad bearings, standard radial internal clearances are:

Contact angle 30˚ Nominal






taBle 6c. Boundary diMensions, ModiFied diMensions For Faa approVed tso iteMs Based on estaBlished approVed FaMily (2) designs

Basic Size


Outer Width Chamfer

Standard Retainer

TypeClosures ABEC

Radial Play Load RatingsRefence Family

Reference Chassis

SizeBore

B

O.D.

DFrom To Static Hybrid

Static Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

F557

4.763 12.700 3.976 3.967 0.30

M Open 7P

0.005 0.013 251 163 903

2 R3

0.0002 0.0005 56 37 2030.013 0.023 230 145 897

0.0005 0.0009 52 33 2020.023 0.033 211 130 889

0.0009 0.0013 47 29 200

0.1875 0.5 0.1562 0.1562 0.012

0.033 0.043 196 118 8820.0013 0.0017 44 27 1980.043 0.063 183 109 874

0.0017 0.0021 41 25 1960.053 0.064 172 102 866

0.0021 0.0025 39 23 195

L469

4.763 12.700 3.967 3.967 0.30

MP Open 7P

0.005 0.013 251 163 903

2 R3

0.0002 0.0005 56 37 2030.013 0.023 230 145 897

0.0005 0.0009 52 33 2020.023 0.033 211 130 889

0.0009 0.0013 47 29 200

0.1875 0.5 0.1562 0.1562 0.012

0.033 0.043 196 118 8820.0013 0.0017 44 27 1980.043 0.053 183 109 874

0.0017 0.0021 41 25 1960.053 0.064 172 102 866

0.0021 0.0025 39 23 195 Ball Standard Size Radial Play (in.) 1/16”, 3/32” 0.0003-0.0008 P38 1/8” 0.0005-0.0011 P511 5/32” 0.0006-0.0012 P612 3/16” 0.0007-0.0015 P715 1/8” and larger

0.0005-0.0015 P515


26

r

B

D

WI

WO

r

B

D

FD

WI

WO

Broken Corners


W

r

B

D

FW

FD

Broken Corners


W

r

B

D


r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO

Fig. 7b. non-flanged equal width. Fig. 7c. non-flanged extended inner.

Continued on next page.

taBle 7b. Boundary diMensions, torque-tuBe series, conrad asseMBly instruMent Ball Bearings

Basic Size

DiametersWidth

WChamfer

Ball Complement Load Ratings

Bore

B

O.D.

DBall

QuantityBall

Diameter

Radial StaticDynamic

Steel Ceramic Hybrid

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

610 9.525 15.875 3.962 0.25 14 1.59 338 214 7570.3750 0.6250 0.1560 0.010 1/16 76 48 170

812 12.700 19.050 3.962 0.25 17 1.59 427 271 8230.5000 0.7500 0.1560 0.010 1/16 96 61 185

1014 15.875 22.225 3.962 0.25 20 1.59 516 327 8790.6250 0.8750 0.1560 0.010 1/16 116 74 198

1216 19.050 25.400 3.962 0.25 24 1.59 605 384 9280.7500 1.0000 0.1560 0.010 1/16 136 86 209

1418 22.225 28.575 3.962 0.25 26 1.59 693 440 9740.8750 1.1250 0.1560 0.010 1/16 156 99 219

1622 25.400 34.925 4.763 0.38 21 2.38 1648 1067 21541.0000 1.3750 0.1875 0.015 3/32 370 240 484

1721 26.988 33.338 3.962 0.25 32 1.59 865 549 10671.0625 1.3125 0.1560 0.010 1/16 195 124 240

2024 31.750 38.100 3.962 0.25 36 1.59 984 625 11071.2500 1.5000 0.1560 0.010 1/16 221 141 249

2226 34.925 41.275 3.962 0.25 40 1.59 1100 699 11581.3750 1.6250 0.1560 0.010 1/16 247 157 260

2428 38.100 44.450 3.962 0.25 44 1.59 1215 772 12061.5000 1.7500 0.1560 0.010 1/16 273 174 271

2430 38.100 47.625 4.763 0.38 29 2.38 2358 1528 24351.5000 1.8750 0.1875 0.015 3/32 530 344 547

2630 41.275 47.625 3.962 0.25 48 1.59 1331 846 12511.6250 1.8750 0.1560 0.010 1/16 299 190 281

3240 50.800 63.500 6.350 0.64 30 3.18 4393 2839 42012.0000 2.5000 0.2500 0.025 1/8 988 638 944

3242 50.800 66.675 7.938 1.02 25 3.97 5555 3601 58382.0000 2.6250 0.3125 0.040 5/32 1249 810 1313

4048 63.500 76.200 6.350 0.64 36 3.18 5352 3459 44842.5000 3.0000 0.2500 0.025 1/8 1203 778 1008

4050 63.500 79.375 7.938 1.02 30 3.97 6787 4402 62532.5000 3.1250 0.3125 0.040 5/32 1526 990 1406

4856 76.200 88.900 6.350 0.64 43 3.18 6459 4176 48113.0000 3.5000 0.2500 0.025 1/8 1452 939 1082

4858 76.200 92.075 7.938 1.02 35 3.97 8017 5202 66203.0000 3.6250 0.3125 0.040 5/32 1802 1169 1488

5664 88.900 101.600 6.350 0.64 49 3.18 6745 4220 46733.5000 4.0000 0.2500 0.025 1/8 1516 949 1051

5666 88.900 104.775 7.938 1.02 40 3.97 8267 5160 63973.5000 4.1250 0.3125 0.040 5/32 1859 1160 1438

6472 101.600 114.300 6.350 0.64 55 3.18 7616 4766 48654.0000 4.5000 0.2500 0.025 1/8 1712 1072 1094

64-74 101.600 117.475 7.938 1.02 45 3.97 9369 5849 66754.0000 4.6250 0.3125 0.040 5/32 2106 1315 1501

64-76 101.600 120.650 9.525 1.02 38 4.76 11072 6901 86234.0000 4.7500 0.3750 0.040 3/16 2489 1551 1939

64-80 101.600 127.000 12.700 1.52 30 6.35 15956 9973 135964.0000 5.0000 0.5000 0.060 1/4 3587 2242 3056

68-76 107.950 120.650 6.350 0.64 58 3.18 8052 5039 49554.2500 4.7500 0.2500 0.025 1/8 1810 1133 1114

68-78 107.950 123.825 7.938 1.02 48 3.97 10024 6259 68554.2500 4.8750 0.3125 0.040 5/32 2254 1407 1541

27

taBle 7c. Boundary diMensions, torque-tuBe series, conrad asseMBly instruMent Ball Bearings

Basic Size

Diameters WidthRadius(1)

r


Bore

B

O.D.

D

Equal Width Rings

Wi and Wo

Extended Inner Ring

Wi

Ball Quantity

Ball Diameter



mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

1017 15.875 26.988 6.350 7.137 0.38 12 3.18 1520 978 28360.6250 1.0625 0.2500 0.2810 0.015 1/8 342 220 638

1219 19.050 30.163 6.350 7.137 0.38 12 3.18 1566 1009 27820.7500 1.1875 0.2500 0.2810 0.015 1/8 352 227 625

1421 22.225 33.338 6.350 7.137 0.38 14 3.18 1871 1206 30160.8750 1.3125 0.2500 0.2810 0.015 1/8 421 271 678

1724 26.988 38.100 6.350 7.137 0.38 18 3.18 2472 1595 34471.0625 1.5000 0.2500 0.2810 0.015 1/8 556 359 775

2128 33.338 44.450 6.350 7.137 0.38 20 3.18 2815 1817 35481.3125 1.7500 0.2500 0.2810 0.015 1/8 633 408 798

2532 39.688 50.800 6.350 7.137 0.38 24 3.18 3437 2220 38561.5625 2.0000 0.2500 0.2810 0.015 1/8 773 499 867

2936 46.038 57.150 6.350 7.137 0.38 28 3.18 4062 2624 41311.8125 2.2500 0.2500 0.2810 0.015 1/8 913 590 929

3342 52.388 66.675 6.350 7.137 0.38 32 3.18 4701 3037 43402.0625 2.6250 0.2500 0.2810 0.015 1/8 1057 683 976

3746 58.738 73.025 6.350 7.137 0.38 34 3.18 5033 3253 43912.3125 2.8750 0.2500 0.2810 0.015 1/8 1131 731 987

4152 65.088 82.550 7.938 9.525 0.38 26 4.76 8231 5333 81612.5625 3.2500 0.3125 0.3750 0.015 3/16 1850 1199 1835

4556 71.438 88.900 7.938 9.525 0.38 28 4.76 8933 5789 83842.8125 3.500 0.3125 0.3750 0.015 3/16 2008 1301 1885

4962 77.788 98.425 7.938 9.525 0.38 32 4.76 10299 6675 89073.0625 3.8750 0.3125 0.3750 0.015 3/16 2315 1501 2002

taBle 7b. Boundary diMensions, torque-tuBe series, conrad asseMBly instruMent Ball Bearings

Basic Size

DiametersWidth

WChamfer


Bore

B

O.D.

DBall

QuantityBall

Diameter



mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

68-80 107.950 127.000 9.525 1.02 40 4.76 11697 7291 87804.2500 5.0000 0.3750 0.040 3/16 2630 1639 1974

68-84 107.950 133.350 12.700 1.52 31 6.35 16564 10354 136864.2500 5.2500 0.5000 0.060 1/4 3724 2328 3077

72-80 114.300 127.000 6.350 0.64 62 3.18 8626 5399 50984.5000 5.0000 0.2500 0.025 1/8 1939 1214 1146

72-82 114.300 130.175 7.938 1.02 50 3.97 10471 6538 69344.5000 5.1250 0.3125 0.040 5/32 2354 1470 1559

72-84 114.300 133.350 9.525 1.02 43 4.76 12615 7864 90744.5000 5.2500 0.3750 0.040 3/16 2836 1768 2040

72-88 114.300 139.700 12.700 1.52 33 6.35 17706 11070 140634.5000 5.5000 0.5000 0.060 1/4 3980 2489 3161

76-84 120.650 133.350 6.350 0.64 65 3.18 9062 5672 51824.7500 5.2500 0.2500 0.025 1/8 2037 1275 1165

76-86 120.650 136.525 7.938 1.02 53 3.97 11126 6948 71024.7500 5.3750 0.3125 0.040 5/32 2501 1562 1597

76-88 120.650 139.700 9.525 1.02 45 4.76 13240 8255 92184.7500 5.5000 0.3750 0.040 3/16 2976 1856 2072

76-92 120.650 146.050 12.700 1.52 35 6.35 18849 11786 144234.7500 5.7500 0.5000 0.060 1/4 4237 2650 3243

80-88 127.000 139.700 6.350 0.64 68 3.18 9497 5945 52635.0000 5.5000 0.2500 0.025 1/8 2135 1337 1183

80-90 127.000 142.875 7.938 1.02 55 3.97 11572 7227 71765.0000 5.6250 0.3125 0.040 5/32 2601 1625 1613

80-92 127.000 146.050 9.525 1.02 47 4.76 13865 8645 93575.0000 5.7500 0.3750 0.040 3/16 3117 1943 2104

80-96 127.000 152.400 12.700 1.52 36 6.35 19453 12165 145025.0000 6.0000 0.5000 0.060 1/4 4373 2735 3260

88-96 139.700 152.400 6.350 0.64 74 3.18 10367 6491 54195.5000 6.0000 0.2500 0.025 1/8 2331 1459 1218

Table 7b continued.


28


step 2 specify sizeBoundary dimensions for all bearings included in this family are shown in table 8b and table 8c.



FAMIly 8

ThIn-SeCTIOn/ TOrque-Tube, AngulAr-COnTACT SerIeSTo build your TSO part number






S 1017 M H 7 P38 L01


1 2 3 4 5 6 7

taBle 8a.

Material Size Retainer Type Feature Tolerance Radial Internal Clearance








See tables 8b & 8c

M = one piece, machined, through hole, phenolic

MR = full ball complement (no retainer used)

MS = one piece, stamped, through hole, SST

MSO = toroid separators, Teflon

MST = slug separators, Teflon

MT = one piece, machined, through hole, aluminum bronze

E = wide inner ring

3 = class 3



For angular contact bearings, standard radial internal clearances are:

Contact angle 30˚ Nominal






(1)P followed by 2 to 4 digits indicates radial internal clearance range. For example our standard radial internal clearance of P28 indicates a radial internal clearance of 0.0002 to 0.0008 in. Alternate radial internal clearance ranges are available. For radial internal clearance ranges outside the standard range or less than half this range, consult your Timken sales engineer.

Ball Standard Size Radial Play (in.) 1/16”, 3/32” 0.0003-0.0008 P38 1/8” and larger

0.0007-0.0012 P712

29

r

B

D

WI

WO

r

B

D

FD

WI

WO

Broken Corners


W

r

B

D

FW

FD

Broken Corners


W

r

B

D


r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO


Continued on next page.

taBle 8b. Boundary diMensions, thin-section, angular-contact series instruMent Ball Bearings

Chassis

DiametersWidth

W

Radius(1)

r


Bore

B

O.D.

DBall

QuantityBall

DiameterRadial Static

Steel

Radial Static Ceramic Hybrid

Radial Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

610 9.525 15.875 3.962 0.25 16 1.59 386 244 8270.3750 0.6250 0.1560 0.010 1/16 87 55 186

812 12.700 19.050 3.962 0.25 21 1.59 528 335 9470.5000 0.7500 0.1560 0.010 1/16 119 75 213

1014 15.875 22.225 3.962 0.25 24 1.59 619 393 9930.6250 0.8750 0.1560 0.010 1/16 139 88 223

1216 19.050 25.400 3.962 0.25 30 1.59 789 500 11080.7500 1.0000 0.1560 0.010 1/16 177 112 249

1418 22.225 28.575 3.962 0.25 32 1.59 852 541 11180.8750 1.1250 0.1560 0.010 1/16 192 122 251

1622 25.400 34.925 4.763 0.38 28 2.38 2197 1423 26101.0000 1.3750 0.1875 0.015 3/32 494 320 587

1721 26.988 33.338 3.962 0.25 38 1.59 1028 652 11961.0625 1.3125 0.1560 0.010 1/16 231 147 269

2024 31.750 38.100 3.962 0.25 44 1.59 1203 764 12661.2500 1.5000 0.1560 0.010 1/16 270 172 285

2226 34.925 41.275 3.962 0.25 48 1.59 1320 838 13081.3750 1.6250 0.1560 0.010 1/16 297 188 294

2428 38.100 44.450 3.962 0.25 52 1.59 1436 913 13481.5000 1.7500 0.1560 0.010 1/16 323 205 303

2430 38.100 47.625 4.763 0.38 40 2.38 3252 2108 30171.5000 1.8750 0.1875 0.015 3/32 731 474 678

2630 41.275 47.625 3.962 0.25 56 1.59 1553 987 13861.6250 1.8750 0.1560 0.010 1/16 349 222 312

3240 50.800 63.500 6.350 0.64 42 3.18 6035 3872 51892.0000 2.5000 0.2500 0.025 1/8 1357 870 1166

3242 50.800 66.675 7.938 1.02 34 3.97 7515 4862 71432.0000 2.6250 0.3125 0.040 5/32 1689 1093 1606

4048 63.500 76.200 6.350 0.64 52 3.18 7587 4869 56542.5000 3.0000 0.2500 0.025 1/8 1706 1095 1271

4050 63.500 79.375 7.938 1.02 42 3.97 9453 6119 78002.5000 3.1250 0.3125 0.040 5/32 2125 1376 1753

4856 76.200 88.900 6.350 0.64 62 3.18 9141 5868 60593.0000 3.5000 0.2500 0.025 1/8 2055 1319 1362

4858 76.200 92.075 7.938 1.02 50 3.97 11395 7378 83693.0000 3.6250 0.3125 0.040 5/32 2562 1659 1881

5664 88.900 101.600 6.350 0.64 70 3.18 9635 6029 59283.5000 4.0000 0.2500 0.025 1/8 2166 1355 1333

5666 88.900 104.775 7.938 1.02 58 3.97 11987 7482 81953.5000 4.1250 0.3125 0.040 5/32 2695 1682 1842

6472 101.600 114.300 6.350 0.64 80 3.18 11078 6933 62454.0000 4.5000 0.2500 0.025 1/8 2490 1559 1404

64-74 101.600 117.475 7.938 1.02 66 3.97 13750 8579 86174.0000 4.6250 0.3125 0.040 5/32 3091 1929 1937

64-76 101.600 120.650 9.525 1.02 54 4.76 15752 9807 108994.0000 4.7500 0.3750 0.040 3/16 3541 2205 2450

64-80 101.600 127.000 12.700 1.52 47 6.35 22339 13962 170154.0000 5.0000 0.5000 0.060 1/4 5022 3139 3825

68-76 107.950 120.650 6.350 0.64 86 3.18 11938 7472 64434.2500 4.7500 0.2500 0.025 1/8 2684 1680 1449

68-78107.950 123.825 7.938 1.02 63 3.97 14210 8867 86464.2500 4.8750 0.3125 0.040 5/32 3195 1993 1944


30

taBle 8c. Boundary diMensions, thin-section, angular-contact series instruMent Ball Bearings

Chassis


r


Bore

B

O.D.

D

Equal Width Rings

Wi and Wo

Extended Inner Ring

Wi

Ball Quantity

Ball Diameter

Radial Static Steel


Radial Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

1017 15.875 26.988 6.350 7.137 0.38 16 3.18 1986 1269 33980.6250 1.0625 0.2500 0.2810 0.015 1/8 446 285 764

1219 19.050 30.163 6.350 7.137 0.38 18 3.18 2302 1472 36030.7500 1.1875 0.2500 0.2810 0.015 1/8 518 331 810

1421 22.225 33.338 6.350 7.137 0.38 20 3.18 2621 1677 37800.8750 1.3125 0.2500 0.2810 0.015 1/8 589 377 850

1724 26.988 38.100 6.350 7.137 0.38 24 3.18 3232 2070 41241.0625 1.5000 0.2500 0.2810 0.015 1/8 727 465 927

2128 33.338 44.450 6.350 7.137 0.38 28 3.18 3865 2477 43841.3125 1.7500 0.2500 0.2810 0.015 1/8 869 557 986

2532 39.688 50.800 6.350 7.137 0.38 34 3.18 4778 3063 48011.5625 2.0000 0.2500 0.2810 0.015 1/8 1074 689 1079

2936 46.038 57.150 6.350 7.137 0.38 38 3.18 5409 3469 49981.8125 2.2500 0.2500 0.2810 0.015 1/8 1216 780 1124

3342 52.388 66.675 6.350 7.137 0.38 44 3.18 6343 4069 52962.0625 2.6250 0.2500 0.2810 0.015 1/8 1426 915 1191

3746 58.738 73.025 6.350 7.137 0.38 48 3.18 6974 4475 54532.3125 2.8750 0.2500 0.2810 0.015 1/8 1568 1006 1226

4152 65.088 82.550 7.938 9.525 0.38 36 4.76 11547 7521 102202.5625 3.2500 0.3125 0.3750 0.015 3/16 2596 1691 2298

4556 71.438 88.900 7.938 9.525 0.38 39 4.76 12606 8212 105422.8125 3.5000 0.3125 0.3750 0.015 3/16 2834 1846 2370

4962 77.788 98.425 7.938 9.525 0.38 42 4.76 13694 8923 107653.0625 3.8750 0.3125 0.3750 0.015 3/16 3079 2006 2420

taBle 8b. Boundary diMensions, thin-section, angular-contact series instruMent Ball Bearings

Chassis

DiametersWidth

W

Radius(1)

r


Bore

B

O.D.

DBall

QuantityBall


Steel


Radial Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

68-80107.950 127.000 9.525 1.02 58 4.76 16980 10572 112484.2500 5.0000 0.3750 0.040 3/16 3817 2377 2529

68-84107.950 133.350 12.700 1.52 44 6.35 23510 14697 172864.2500 5.2500 0.5000 0.060 1/4 5285 3304 3886

72-80114.300 127.000 6.350 0.64 90 3.18 12522 7838 65364.5000 5.0000 0.2500 0.025 1/8 2815 1762 1469

72-82114.300 130.175 7.938 1.02 72 3.97 15087 9415 88424.5000 5.1250 0.3125 0.040 5/32 3392 2117 1988

72-84114.300 133.350 9.525 1.02 62 4.76 18209 11339 115814.5000 5.2500 0.3750 0.040 3/16 4094 2549 2604

72-88114.300 139.700 12.700 1.52 46 6.35 24681 15430 175494.5000 5.5000 0.5000 0.060 1/4 5548 3469 3945

76-84120.650 133.350 6.350 0.64 94 3.18 13104 8203 66274.7500 5.2500 0.2500 0.025 1/8 2946 1844 1490

76-86120.650 136.525 7.938 1.02 76 3.97 15965 9964 90314.7500 5.3750 0.3125 0.040 5/32 3589 2240 2030

76-88120.650 139.700 9.525 1.02 64 4.76 18852 11740 116574.7500 5.5000 0.3750 0.040 3/16 4238 2639 2621

76-92120.650 146.050 12.700 1.52 50 6.35 26927 16837 182954.7500 5.7500 0.5000 0.060 1/4 6053 3785 4113

80-88127.000 139.700 6.350 0.64 100 3.18 13966 8743 68065.0000 5.5000 0.2500 0.025 1/8 3140 1965 1530

80-90127.000 142.875 7.938 1.02 80 3.97 16842 10512 92135.0000 5.6250 0.3125 0.040 5/32 3786 2363 2071

80-92127.000 146.050 9.525 1.02 68 4.76 20083 12508 119705.0000 5.7500 0.3750 0.040 3/16 4515 2812 2691

80-96127.000 152.400 12.700 1.52 52 6.35 28098 17571 185315.0000 6.0000 0.5000 0.060 1/4 6317 3950 4166

88-96139.700 152.400 6.350 0.64 110 3.18 15411 9648 70595.5000 6.0000 0.2500 0.025 1/8 3465 2169 1587

Table 8b continued.


31

step 1 specify Material codeGo to table 9a. The majority of bearings listed under this family are manufactured from either 440C stainless-steel or 52100 steel.

step 2 specify sizeBoundary dimensions for all bearings included in this family are shown in tables 9b and 9c.

step 3 specify Bearing type (shields)Choice of shield options is shown in table 9a.


FAMIly 9

ThIn-SeCTIOn/ TOrque-Tube, FrACTured-rACe SerIeSTo build your TSO part number



step 5 specify FeaturesFeature option is shown in table 9a.




C 2128 B S * 5 P712 DB30


1 2 3 4 5 6 7 8

taBle 9a.

Material Size Bearing Type Retainer Type Feature Tolerance Radial Internal

ClearanceSupplementary

if RequiredC = 52100 chromium-alloy

steel rings and balls






See tables 9b & 9c

B = fractured outer ring

BI = fractured outer ring, integral shields

M = one piece, machined, through hole, phenolic

MT = one piece, machined, through hole, Aluminum Bronze

S = one piece, stamped, through hole, stainless-steel

SO = toroid separators, Teflon

ST = slug separators, Teflon

No = Full complement code = (no retainer used)

E = wide inner ring

3 = class 3



For fractured race bearings, standard radial internal clearances are:






* - nil, leave no space

Ball Standard Size Radial Play (in.) 1/16”, 3/32” 0.0003-0.0008 P38 1/8” and larger

0.0005-0.0015 P515

(1)“P followed by 2 to 4 digits indicates radial internal clearance range. For example our standard radial internal clearance of P28 indicates a radial internal clearance of 0.0002 to 0.0008 in. Alternate radial internal clearance ranges are available. For radial internal clearance ranges outside the standard range or less than half this range, consult your Timken sales engineer.

32

r

B

D

WI

WO

r

B

D

FD

WI

WO

Broken Corners


W

r

B

D

FW

FD

Broken Corners


W

r

B

D


r

B

D

FW

FD

Broken Corners

Flanged Wide Inner

W

r

B

D

FW

FD

Broken Corners

Flanged Equal Width

WI

r

B

D


W

r

B

D


WO

WI

WO


taBle 9c. Boundary diMensions, torque-tuBe, Fractured-race, instruMent Ball Bearings


r


ChassisBore

B

O.D.

D

Equal Width Rings

Wi and Wo

Extended Inner Ring

Wi

Ball Quantity

Ball Diameter

Radial Static Steel


Radial Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

1017 15.875 26.988 6.350 7.137 0.38 21 3.18 2589 1650 40580.6250 1.0625 0.2500 0.2810 0.015 1/8 582 371 912

1219 19.050 30.163 6.350 7.137 0.38 24 3.18 3049 1945 43480.7500 1.1875 0.2500 0.2810 0.015 1/8 685 437 977

1421 22.225 33.338 6.350 7.137 0.38 27 3.18 3515 2244 45980.8750 1.3125 0.2500 0.2810 0.015 1/8 790 504 1034

1724 26.988 38.100 6.350 7.137 0.38 32 3.18 4282 2736 49751.0625 1.5000 0.2500 0.2810 0.015 1/8 963 615 1118

2128 33.338 44.450 6.350 7.137 0.38 38 3.18 5213 3332 53511.3125 1.7500 0.2500 0.2810 0.015 1/8 1172 749 1203

2532 39.688 50.800 6.350 7.137 0.38 44 3.18 6144 3930 56761.5625 2.0000 0.2500 0.2810 0.015 1/8 1381 884 1276

2936 46.038 57.150 6.350 7.137 0.38 50 3.18 7073 4525 59751.8125 2.2500 0.2500 0.2810 0.015 1/8 1590 1017 1343

3342 52.388 66.675 6.350 7.137 0.38 58 3.18 8309 5319 63392.0625 2.6250 0.2500 0.2810 0.015 1/8 1868 1196 1425

3746 58.738 73.025 6.350 7.137 0.38 64 3.18 9241 5916 65772.3125 2.8750 0.2500 0.2810 0.015 1/8 2078 1330 1479

4152 65.088 82.550 7.938 9.525 0.38 48 4.76 15328 9966 123472.5625 3.2500 0.3125 0.3750 0.015 3/16 3446 2240 2776

4556 71.438 88.900 7.938 9.525 0.38 52 4.76 16734 10882 127362.8125 3.5000 0.3125 0.3750 0.015 3/16 3762 2446 2863

4962 77.788 98.425 7.938 9.525 0.38 58 4.76 18829 12247 133133.0625 3.8750 0.3125 0.3750 0.015 3/16 4233 2753 2993

taBle 9b. Boundary diMensions, thin-section, Fractured-race, instruMent Ball Bearings

Chassis

DiametersWidth

Wo

Radius(1)

r


Bore

B

O.D.

DBall

QuantityBall


Steel


Radial Dynamic

mm in.

mm in.

mm in.

mm in.

mm in.

N lbf

N lbf

N lbf

610 9.525 15.875 3.962 0.254 24 1.59 579 366 10840.3750 0.6250 0.1560 0.010 1/16 130 82 244

812 12.700 19.050 3.962 0.25 31 1.59 779 494 12280.5000 0.7500 0.1560 0.010 1/16 175 111 276

1014 15.875 22.225 3.962 0.25 37 1.59 955 605 13250.6250 0.8750 0.1560 0.010 1/16 215 136 298

1216 19.050 25.400 3.962 0.25 43 1.59 1130 717 14090.7500 1.0000 0.1560 0.010 1/16 254 161 317


33

AppendIx

COdeS FOr uSe In TSO pArT SpeCIFICATIOn standard

lubrication is dip and drain with timken lo1 lubricant.

dimensional coding: Zo graded O.D.’s only ZB graded bores only Zd graded O.D.’s and bores ZdM graded for preloaded pairs having matched O.D.’s and boresStandard dimensional grading is in increments of 0.0001 in. “X” prefix for 0.000050 in. increments.

preloaded pairs: dB back-to-back mounting dF face-to-face mounting dt tandem mounting Numbers following letter code indicate nominal preload or preload range in pounds.

torque: (applicable to miniature sizes): q Q followed by a number indicates peak starting torque


V V followed by a number indicates peak running torque limit in hundreds of mg•mm. For example, V13 indicates a bearing with less than 1300 mg•mm peak running torque. Torque is measured under a 75 gram thrust load for bear-ings having an O.D. of 3/8 in. or less. Larger cataloged bearings are measured under a test load of 400 grams.

lubrication: ld no lubrication or dry bearings. lo followed by a number indicates specified oil

lubrication. lg followed by a number indicates other specified

grease lubrication. ly followed by a number indicates other Timken-

approved lubricants. loV or lyV followed by a number indicates specified

oil to be vacuum impregnated into the retainer. loc or lyc followed by a number indicates specified

oil to be used and the bearing centrifuged. lgF or lyF followed by a number indicates film of a

specific grease.

34

Tim

ken®

and

Whe

re Y

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urn®

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regi

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adem

arks

of T

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imke

n Co

mpa

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© 2

011

The

Tim

ken

Com

pany

• Pr

inte

d in

U.S

.A.

Bearings • Steel • Power Transmission Systems • Precision Components • Seals • Lubrication • Industrial Services • Remanufacture and Repair

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06-11: Order No. 10454

faa approved ball bearings

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