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BearingTolerances

The Annular Bearing Engineers Committee (ABEC) has established standards that divide precisionball bearings into quality classes.For most applications ABEC 1 or ABEC 3 bearings will offersignificant accuracy.But, there are times when highly precise position is required.In these applicationsABEC 5 or ABEC 7 bearings should be specified.This page refers to ABEC tolerances that affect the mounting dimensions of ball bearings.Thefollowing page discusses tolerances that influence the operation of the bearings. Outer Ring Tolerances Inner Ring Tolerances

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