scope:

This standard for thrust bearings of the tapered roller type of inch

design covers:

Bearing Number and Type Identity

Symbols and Nomenclature

Boundary Dimensions

Tolerances

Mounting Dimensions

All bearings and components in this standard are not necessarily

available. For availability, consult bearing manufacturers.

The following standards should be consulted for tolerance definitions,

gaging practices and methods of evaluating load ratings:

ANSI/AFBMA Terminology for Anti-Friction

Standard 1 Ball and Roller Bearings and Parts

ANSI/AFBMA Tolerance Definitions and Standard 4 Gaging Practices for Ball and Roller Bearings

ANSI/AFBMA Load Ratings and Fatigue Life Standard 11 for Roller Bearings

This standard only covers external dimensions. Functional interchangeability between different makes of standard bearings or components of the same size may depend on bearing features which are not standardized. Hence, the substitution of one make of standard bearing for another should only be made after careful comparison of their characteristics and consideration of the requirements of the