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.
straight bore shape, 30.000 millimeters minimum and 30.025 millimeters maximum bore diameter, contact bearing seal type, radial load direction, 0.013 millimeters minimum radial and 0.028 millimeters maximum radial internal clearance