Page 46 - Rollingbearings

A.2 Tolerances

Table 8
Normal tolerances for inch radial bearings, except tapered roller bearings

Inner ring
d t Δdmp t Vdsp t ΔBs t VBs t Kia t Sia
> ≤ U L U L
mm μm μm μm μm μm μm

– 25,4 +5 –5 10 0 –127 13 10 15
25,4 50,8 +5 –8 10 0 –127 13 10 20
50,8 76,2 +5 –8 13 0 –127 13 15 30
Tolerances 76,2 152,4 +5 –8 18 0 0 0 –127 15 20 38
15
33
–127
51
25
203,2
152,4
+5
–13
+5
304,8
20
30
–13
203,2
33
51
–254
A.2 304,8 381 +5 –20 51 0 –406 25 38 64
Outer ring
D t ΔDmp t VDsp t ΔCs t VCs t Kea t Sea
> ≤ U L
mm μm μm μm μm μm
– 25,4 –8 –18 10 Identical to t ΔBs of 13 10 15
25,4 50,8 –8 –20 10 an inner ring of the 13 13 15
50,8 76,2 –13 –25 13 same bearing as the 13 15 20
outer ring
76,2 127 –20 –33 18 15 18 30
127 203,2 –33 –46 33 15 20 38
203,2 304,8 –33 –46 33 20 25 51
304,8 381 –33 –58 51 25 30 51
381 508 –33 –58 51 30 38 64

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