ABMA STD 4, 1994 Edition, 1994 - Tolerance Definitions And Gauging Practices For Ball and Roller Bearings

This standard includes: 

(1) Terms and definitions of tolerances for the boundary dimensions, running accuracy and internal clearance of ball and roller bearings listed in other ANSI/ABMA and ISO standards. 

(2) Description of methods of measuring, which are commonly used by bearing users and which, as a rule, give an accuracy sufficient for practical purposes.