WHEEL SUPPORT HUB UNIT, BEARING RING MEMBER FOR WHEEL SUPPORT HUB UNIT, AND METHOD OF MANUFACTURING THE SAME

摘要

A raceway member (6) of a wheel support hub unit, having wheel or vehicle body fixing portions (7) extending radially outward from a solid or hollow shaft portion, and a wheel or vehicle body positioning cylindrical portion (9) extending concentrically with the shaft portion, the fixing portion (7) being formed by the cold side extrusion so that the fixing portion is integral with the shaft portion (5).