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.
3.1493 inches nominal bore diameter, straight bore shape, 5.6247 inches minimum and 5.6250 inches maximum overall outside diameter, radial load direction, 0.0014 inches minimum radial and 0.0019 inches maximum radial internal clearance