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.
radial load direction, 0.2500 inches nominal bore diameter, straight bore shape, 0.0005 inches minimum radial and 0.0008 inches maximum radial internal clearance, asmodified by internal clearance,gas modified by shield quantity departure from cited designator