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, 2.0622 inches minimum and 2.0626 inches maximum bore diameter, radial load direction, 0.0005 inches minimum radial and 0.0015 inches maximum radial internal clearance, straight bore shape