This Standard defines the presentation of symbols for physical quantities — dimensions, dimensional tolerances, accuracy, load ratings, life, etc. (hereafter referred to as "symbols") — in the field of rolling bearings.

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

ISO 15241 : 2001 Rolling bearings — Symbols for quantities (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/IEC Guide 21.