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.
0.3750 inches nominal inner ring width, 0.9995 inches minimum and 1.0000 inches maximum bore diameter, 0.0010 inches minimum radial and 0.0030 inches maximum radial internal clearance, radial load direction, straight bore shape