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.
0.2498 inches minimum and 0.2500 inches maximum bore diameter, 0.0230 inches nominal flange width, 0.0002 inches minimum radial and 0.0008 inches maximum radial internal clearance, straight bore shape, 0.5470 inches nominal flange outside diameter