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.
abec no.7 standard tolerance designation, 0.3927 inches minimum and 0.3937 inches maximum overall width, 1.2596 inches minimum and 1.2598 inches maximum overall outside diameter, radial load direction