The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.
0.2055 inches minimum and 0.2060 inches maximum overall outside diameter, sae assn std single material response overall material document and classification, straight bore shape, 0.1561 inches minimum and 0.1562 inches maximum overall width, 0.1249 inches minimum and 0.1250 inches maximum bore diameter