The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.
straight bore shape, 1.2550 inches minimum and 1.2600 inches maximum overall width, 1.4984 inches minimum and 1.4990 inches maximum overall outside diameter, 66 fed std all material responses overall material document and classification, 1.2495 inches minimum and 1.2500 inches maximum bore diameter