Normal tolerances for inch radial bearings, except tapered roller bearings

Inner ring
d tΔdmp tVdsp tΔBs tVBs tKia tSia
> 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










76,2 152,4 +5 –8 18 0 –127 15 20 38
152,4 203,2 +5 –13 33 0 –127 15 25 51
203,2 304,8 +5 –13 33 0 –254 20 30 51
304,8 381 +5 –20 51 0 –406 25 38 64




















Outer ring
D tΔDmp tVDsp tΔCs tVCs tKea tSea
> U L

 
mm μm μm μm μm μm μm










25,4 –8 –18 10 Identical to
tΔBs
of an inner ring
of the same
bearing as the
outer ring
13 10 15
25,4 50,8 –8 –20 10 13 13 15
50,8 76,2 –13 –25 13 13 15 20








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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