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.
0.0210 inches minimum and 0.0230 inches maximum flange width, straight bore shape, standard internal fit-up designation, 0.4200 inches minimum and 0.4220 inches maximum flange outside diameter, 0.2498 inches minimum and 0.2500 inches maximum bore diameter