An item in which the shaft or revolving part turns upon hardened rollers usually contained in a cage. It must contain an inner or outer race, or both. For items without a race(s), see retainer and roller, bearing.
3.3750 inches nominal inner ring width, 2.5000 inches nominal outer ring width, 7.1250 inches nominal bore diameter, steel overall material, 13.0000 inches nominal overall outside diameter