Ansi Abma 8.2-1991 Pdf Portable

The American Bearing Manufacturers Association (now simply ABMA) can provide information on the status of withdrawn standards. While they cannot sell you the 1991 PDF (it is out of print), their technical staff can guide you to the correct active standard that contains the legacy data you need.

Many industrial plants still operate machinery from the 1980s and 1990s. Conveyors, pumps, gearboxes, and heavy equipment manufacturers (like those in the mining and agriculture sectors) often specified bearings and accessories according to this standard. ansi abma 8.2-1991 pdf

: You can purchase the current active standard or historical versions through the ANSI Webstore Accuris Standards Store Historical Reference specific dimension

For example, if an engineer has an inch-series cylindrical roller bearing with a 4-inch bore, the standard would list a table showing the minimum and maximum internal clearance in micro-inches (or ten-thousandths of an inch) for Normal, C3, and C4 classes. and C4 classes. ANSI/ABMA 8.2-1991 standard

ANSI/ABMA 8.2-1991 standard, titled Ball and Roller Bearing Mounting Accessories - Inch Design

For quick reference to specific dimensions, some technical catalogs like or community-shared documents on provide excerpts of the tables found in these standards. specific dimension