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-std-102b government specification specification/standard data, 18.0 millimeters nominal overall width, abec no.1 standard tolerance designation, bearing,ball,annular part name assigned by controlling agency, 52.0 millimeters nominal bore diameter