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, 0.9250 inches minimum and 0.9300 inches maximum inner ring width, 2.1651 inches minimum and 2.1654 inches maximum bore diameter, angular load direction, ch47d,helicopter end item identification