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.
mil-g-23287 mil spec single material response lubrication material document and classification, 0.6250 inches nominal inner ring width, 0.5310 inches nominal groove radius, 0.9060 inches nominal groove diameter, 0.2500 inches nominal bore diameter