The outer component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.
rbec no.1 standard tolerance designation, 3.1491 inches minimum and 3.1496 inches maximum overall outside diameter, 0.8218 inches minimum and 0.8268 inches maximum overall width, 2.6751 inches minimum and 2.6756 inches maximum largest bore diameter, steel overall material