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.
0.0000 inches minimum radial and 0.0010 inches maximum radial internal clearance, 7.9988 inches minimum and 8.0000 inches maximum bore diameter, 30.0 degrees nominal contact angle, straight bore shape, angular load direction