Ball and Roller Bearings

Bearing Tolerances6.2 Chamfer measurements and tolerance orallowable values of tapered boreSide face of innerring or centerwasher, or side faceof outer ringTable 6.9 Allowable critical-value of bearing chamferTable 6.9 (1) Radial bearing (Except tapered roller bearing)Unit mmrs min 1orr1s minNominalbore diameterdover incl.Radialdirectionrs maxorr1s maxBore diameter faceof bearing or outerdiameter face ofbearingAxialdirectionrs min orr1s minrs min or r1s minrs max or r1s max(Axial direction)Table 6.9 (2) Tapered roller bearings of metric seriesrs min 2orrs min or r1s minr1s minrs max or r1s max(Radial direction)Nominal bore 3diameter of bearing"d" or nominaloutside diameter "D"over incl.Radialdirectionrs max orr1s maxAxialdirectionUnit mm0.050.080.10.150.20.10.160.20.30.50.20.30.40.60.80.30.611.11.54040501201200.611.522.31233.544040501201200.81.31.92.53123452802208022033.53.84.5562.1 280 46.5280 4.572.51002801002803.84.556673 280 58280 5.584567.59.51215196.581012.5151821259101317192430381 These are the allowable minimum dimensions of the chamfer dimension"r" or "r1" and are described in the dimensional table.0.30.611.522.534564040501202501202501202501202504001202504001801804040501202501202501202501202504001202504001801802 These are the allowable minimum dimensions of the chamfer dimension"r" or "r1" and are described in the dimensional table.3 Inner rings shall be in accordance with the division of "d" and outer ringswith that of "D".Note: This standard will be applied to the bearings whose dimensional series(refer to the dimensional table) are specified in the standard of ISO 355or JIS B 1512. For further information concerning bearings outside ofthese standards or tapered roller bearings using US customary unit,please contact NTN Engineering.0.70.91.11.31.61.92.32.83.52.83.543.544.544.555.555.566.56.57.57.591.41.61.722.5333.5444.5555.565.56.577.577.588.5891011A-46