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.
45.0 degrees nominal contact angle, angular load direction, 0.9997 inches minimum and 1.0002 inches maximum bore diameter, 2.7505 inches minimum and 2.7513 inches maximum overall outside diameter, straight bore shape