scope:

This Standard specifies the boundary dimensions of the single-direction aligning thrust ball bearing, single-direction aligning thrust ball bearing with aligning seat washer, double-direction aligning thrust ball bearing and double-direction aligning thrust ball bearing with aligning seat washers.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows:

ISO 20516: 2007 Rolling bearings-Aligning thrust ball bearings and aligning seat washers-Boundary dimensions (MOD)

The symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.