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, 0.4721 inches minimum and 0.4724 inches maximum bore diameter, standard internal fit-up designation, outward convergent internal fit-up contact angular direction, angular load direction