This standard covers inch design radiai tapered roller bearings of various types, part numbering systems, tolerances, and fitting practices. For boundary dimensions, refer to manufacturers' catalogs. Tapered roller thrust bearings are covered in ANSI/ABMA Standard 23.2.

General ABMA standards which apply to various types of bearings should be consulted for tolerance definitions, gauging practices, mounting accessories, and method of evaluating load ratings.