Page 397 - Rollingbearings

Bearing data
Table 6
Preload of universally matchable single row angular contact ball bearings arranged back-to-back or face-to-face

G

G
3

Bore diameter Preload
Class
d GA GB GC
> ≤ min max min max min max
mm µm µm µm

10 18 +4 –4 –2 –10 –8 –16
18 30 +4 –4 –2 –10 –8 –16
30 50 +4 –4 –2 –10 –8 –16
50 80 +6 –6 –3 –15 –12 –24
80 120 +6 –6 –3 –15 –12 –24
120 180 +6 –6 –3 –15 –12 –24
180 250 +8 –8 –4 –20 –16 –32
250 315 +8 –8 –4 –20 –16 –32

Table 7
Dimensions of snap ring grooves and snap rings

f
b

D 4 D 3 C

Bearing Dimensions Snap ring
Designation Designation
C b f D 3 D 4
– mm –

3308 DNRCBM 3,28 2,7 2,46 86,8 96,5 SP 90
3309 DNRCBM 3,28 2,7 2,46 96,8 106,5 SP 100
3310 DNRCBM 3,28 2,7 2,46 106,8 116,6 SP 110
3311 DNRCBM 4,06 3,1 2,82 115,2 129,7 SP 120
3313 DNRCBM 4,9 3,1 2,82 135,2 149,7 SP 140

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