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.
angular load direction, 0.3750 inches nominal overall outside diameter, straight bore shape, m1,m1a1,gps m1,gps m1a1 end item identification, 0.1250 inches nominal bore diameter