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.
1.8744 inches minimum and 1.8750 inches maximum bore diameter, straight bore shape, 15.0 degrees nominal contact angle, angular load direction, 0.4840 inches nominal inner ring width