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ABMA: American Bearing Manufacturers Association

ABMA, the American Bearing Manufacturers Association, is a nonprofit organization that develops and publishes standards for all aspects of the bearing industry. Headquartered in Washington, D.C., United States, ABMA standards are used throughout the United States and, through its 28 member companies, represent approximately 80% of all American bearing production. ABMA also serves as the administrator for the U.S. TAGs (United States Technical Advisory Group) to ISO/TC 4 (International Organization for Standardization/Technical Committee) and to all of its subcommittees. Standards from ABMA-bearing are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: or 1-212-642-4980 or Request Proposal Price.

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ANSI/ABMA 8.2-1999 (S2010)

Ball and Roller Bearing Mounting Accessories Inch Design

Mounting accessories covered in this standard are commonly used for the location or fixing of ball and roller bearings to the shaft of a machine or mechanism. The purpose of the standard is to establish dimensions and minimum physical properties of these components consistent and compatible with ABMA and ANSI Standards relating to ball and roller bearings. Products manufactured in accordance with this standard will fulfill the expected function when used with properly-designed shafts.

ANSI/ABMA 9-2015

Load Ratings And Fatigue Life For Ball Bearings

Ball bearing performance is a function of many variables. These include the bearing design, the characteristics of the material from which the bearings are made, the way in which they are manufactured, as well as many variables associated with their application. The only sure way to establish the satisfactory operation of a bearing selected for a specific application is by actual performance in the application. As this is often impractical, another basis is required to estimate the suitability of a particular bearing for a given application. This is the purpose of this standard.

ANSI/ABMA/ISO 3290-1-2014

Rolling Bearings - Balls - Part 1: Steel balls

This document, an adoption of ISO 3290-1:2008, specifies requirements for finished steel balls for rolling bearings.  

ANSI/ABMA 11-2014

Load Ratings and Fatigue Life for Roller Bearings

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.  

ANSI/ABMA 12.1-1992 (S2010)

Instrument Ball Bearings Metric Designá

Covers characteristics that define metric design instrument ball bearings, their boundary dimensions, tolerances, internal clearances, classification for selective assembly, and recommended practice for gaging, friction torque determination, load rating, operation life prediction and yield rate limitation.

ANSI/ABMA 18.2-1982 (S2013)

Needle Roller Bearings Radial Inch Designá

This standard for Inch Design Industrial Radial Needle Roller Bearings and components includes: identification code, boundary dimensions, bearing tolerances, and fitting and mounting practice.

ANSI/ABMA 19.2-2013

Tapered Roller Bearings - Radial Inch Design

This standard covers inch design radial tampered roller bearings of various types, part numbering systems, boundary dimensions, tolerances, and fitting practices. 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.

ANSI/ABMA 12.2-1992 (S2010)

Instrument Ball Bearings Inch Designá

Covers characteristics that define inch design instrument ball bearings, their boundary dimensions, tolerances, internal clearances, classification for selection assemblies and recommended practices for gaging, friction torque determination, load rating, operational life prediction and yield rate limitation.


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