Special Features:

7surface finish - balls 2 microinches aa, ring faces and id surface 40 microinches aa, od surface and lips inner ring 32 microinches aa, outer ring raceways 15 microinches aa, inner ring raceways 12 microinches aa, one outer lip 125 microinches aa and other lip 90 microinches aa; stabilized for operation to 350 degrees f; id perpendicular to inner ring face within 0.0008 in. And concentric w/inner ring raceways within 0.0005 in. Tir, od perpendicular to outer ring face within 0.0008 in. And concentric w/outer ring raceways within 0.0008 in. Tir inner ring faces parallel within 0.0008 in., center inner ring raceway parallel to ring face within 0.0008 in., outer ring faces parallel within 0.0008 in., center outer ring raceway parallel to ring face within 0.0012 in.

Properties:

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.