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About This Item


Full Description

After much discussion and debate within the United States bearing industry and user base, revisions have been made to ANSI/ABMA 11:1990 to make it more consistent with ISO 281 (Rolling bearings - Dynamic load ratings and fatigue life) and ISO 76 (Rolling bearings - Static load ratings). The ANSI/ABMA standards are now aligned with the rating calculations given in the ISO standards. In addition to updated rating calculations, the guidelines for the estimation of the required lubricant viscosity for the application and lubrication viscosity ratio have been included to assist the designer in lubricant viscosity selection.

This standard specifies the method of calculating the basic dynamic load rating of rolling bearings within the size ranges shown in the relevant ANSI/ABMA standards, manufactured from contemporary, commonly used, good quality hardened bearing steel in accordance with good manufacturing practice and basically of conventional design as regards the shape of rolling contact surfaces.

Document History

  1. ABMA 11:2014 (R2020)

    👀 currently

    Load Ratings and Fatigue Life for Roller Bearings

    • Most Recent
  2. ABMA 11:1990 (R2008)

    Load Ratings and Fatigue Life for Roller Bearings

    • Historical Version