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Tolerances for inch tapered roller bearings

Inner ring
d tΔds tKia, tSia  

Tolerance classes
 

Normal, CL2 CL3, CL0
 
> ≤ U L U L  
mm μm μm  











– 76,2 +13 0 +13 0 Values are
given in
outer ring table		  
76,2 101,6 +25 0 +13 0  
101,6 266,7 +25 0 +13 0  
 
266,7 304,8 +25 0 +13 0  
304,8 609,6 +51 0 +25 0  
609,6 914,4 +76 0 +38 0  






















Outer ring
D tΔDs tKia, tKea, tSia, tSea tKea

Tolerance classes Tolerance classes Tolerance class

Normal, CL2 CL3, CL0 Normal CL2 CL3 CL0 CL7C
> ≤ H L H L  
mm μm μm μm  











– 304,8 +25 0 +13 0 51 38 8 4 Table 1
304,8 609,6 +51 0 +25 0 51 38 18 9  
609,6 914,4 +76 0 +38 0 76 51 51 26  






















Abutment width of single row bearing
d D tΔTs  


Tolerance classes  


Normal CL2 CL3, CL0  
> ≤ > ≤ U L U L U L  
mm mm μm μm μm  











– 101,6 – – +203 0 +203 0 +203 –203  
101,6 266,7 – – +356 –254 +203 0 +203 –203  
266,7 304,8 – – +356 –254 +203 0 +203 –203  
 
304,8 609,6 – 508 +381 –381 +381 –381 +203 –203  
304,8 609,6 508 – +381 –381 +381 –381 +381 –381  
609,6 – – – +381 –381 – – +381 –381  











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