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Dimention >> Other Parameters >>

Basic
Bearing
No.

Nominal Bearing Dimensions

Preferred Shoulder Diameters

d

D

B

r (min)

Shaft

Housing

Open Shielded sealed

mm

inch

mm

inch

inch

mm

inch

mm

mm

inch

mm

inch

mm

inch

R3

4.763 0.1875 12.700 0.5000 3.970 0.1562 4.980 0.1960 0.15 0.006 6.350 0.2500 11.125 0.4380

R3A

4.763 0.1875 12.700 0.5000 4.980 0.1960 4.980 0.1960 0.15 0.006 6.350 0.2500 11.125 0.4380

R4

6.350 0.2500 15.875 0.6250 4.980 0.1960 4.980 0.1960 0.20 0.008 7.950 0.3130 14.300 0.5630

R4A

6.350 0.2500 19.050 0.7500 5.560 0.2188 7.140 0.2812 0.30 0.012 8.738 0.3440 16.662 0.6560

R6

9.525 0.3750 22.225 0.8750 5.560 0.2188 7.140 0.2812 0.30 0.012 11.913 0.4690 19.837 0.7810

R8

12.700 0.5000 28.575 1.1250 6.350 0.2500 7.940 0.3125 0.30 0.012 15.088 0.5940 26.187 1.0310

R8-7

11.113 0.4375 28.575 1.1250 6.350 0.2500 ... ... 0.30 0.012 ... ... ... ...

R10

15.875 0.6250 34.925 1.3750 7.140 0.2812 8.730 0.3438 0.60 0.024 19.050 0.7500 31.750 1.2500

R12

19.050 0.7500 41.275 1.6250 7.940 0.3125 11.110 0.4375 0.60 0.024 23.012 0.9060 37.313 1.4690

R14

22.225 0.8750 47.625 1.8750 9.525 0.3750 12.700 0.5000 0.79 0.031 26.187 1.0310 43.663 1.7190

R16

25.400 1.0000 50.800 2.0000 9.525 0.3750 12.700 0.5000 0.79 0.031 29.362 1.1560 46.838 1.8440

R18

28.575 1.1250 53.975 2.1250 9.525 0.3750 12.700 0.5000 0.79 0.031 32.537 1.2810 50.013 1.9690

R20

31.750 1.2500 57.150 2.2500 9.525 0.3750 12.700 0.5000 0.79 0.031 35.712 1.4060 53.188 2.0940

R22

34.925 1.3750 63.500 2.5000 11.113 0.4375 14.288 0.5625 0.79 0.031 38.887 1.5310 59.538 2.3440

R24

38.100 1.5000 66.675 2.6250 11.113 0.4375 ... ... 0.79 0.031 42.062 1.6560 62.713 2.4690
 
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