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.
as modified by afbma standard tolerrance designation als0 by inernal clearance departure from cited designator, straight bore shape, 0.1875 inches nominal bore diameter, 0.0005 inches minimum radial and 0.0008 inches maximum radial internal clearance, c calibration designator