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.
steel overall material, ntc opposing force vehicle,m551a1,m109a1b sp,m109a2 sp,m109a3,m109a4 sp,m551 ft 152mm end item identification, angular load direction, ground surface finish, straight bore shape