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.
f-15 acft end item identification, 6.4995 inches minimum and 6.5000 inches maximum overall outside diameter, 0.0001 inches minimum radial and 0.0005 inches maximum radial internal clearance, 0.3075 inches minimum and 0.3125 inches maximum overall width, 5.9995 inches minimum and 6.0000 inches maximum bore diameter