ABMA 11-1990 (R1999) Load Ratings and Fatigue Life for Roller Bearings

INTRODUCTION

The performance of roller bearings is influenced by a variety of factors. These factors include the design specifications of the bearing, the material properties of the components used, the manufacturing processes applied, and several variables related to their intended use. The most reliable method to verify the effective operation of a bearing chosen for a specific application is through its actual performance in that context. However, since this approach is frequently impractical, an alternative framework is necessary to assess the compatibility of a particular bearing with a given application.

This standard outlines the procedure for determining the basic dynamic load ratings of rolling bearings within the size ranges specified in the relevant ANSI/AFBMA standards. These bearings should be constructed from modern, widely accepted, high-quality hardened steel, following established manufacturing practices, and should fundamentally exhibit a conventional design concerning the geometry of the rolling contact surfaces.

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