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-l-7808 mil spec single material response lubrication material document and classification, straight bore shape, 0.0001 inches minimum radial and 0.0006 inches maximum radial internal clearance, radial load direction, 2.9997 inches minimum and 3.0000 inches maximum bore diameter