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, b-1b acft end item identification, 2.1652 inches nominal bore diameter, 0.0017 inches minimum radial and 0.0021 inches maximum radial internal clearance, radial load direction