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.
0.2498 inches minimum and 0.2500 inches maximum bore diameter, straight bore shape, 0.0002 inches minimum radial and 0.0005 inches maximum radial internal clearance, radial load direction, 0.4998 inches minimum and 0.5000 inches maximum overall outside diameter