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.
mil-g-81322 mil spec single material response lubrication material document and classification, 30.0 degrees nominal contact angle, straight bore shape, 11.9986 inches minimum and 12.0000 inches maximum bore diameter, radial load direction