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.
straight bore shape, 25.0 degrees maximum contact angle, angular load direction, 0.1873 inches minimum and 0.1875 inches maximum bore diameter, 0.0002 inches minimum radial and 0.0004 inches maximum radial internal clearance