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.
7.7500 inches nominal bore diameter, radial load direction, as modified by internal clearance departure from cited designator, straight bore shape, 0.0003 inches minimum radial and 0.0011 inches maximum radial internal clearance