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.
angular load direction, 3.5425 inches minimum and 3.5433 inches maximum bore diameter, inward convergent internal fit-up contact angular direction, 25.0 degrees nominal contact angle, straight bore shape