Hub and bearing unit for motor vehicle has row of ball bearings fitted on hub, inner ring of bearings having curved surface which fits against shoulder on hub, with undercut section on shoulder

摘要

The hub and bearing unit for a motor vehicle comprises a row of ball bearings fitted on the hub (11). The inner ring (19) of the bearings has a curved surface (19a) which fits against a curved shoulder (30) on the hub. There is an undercut section (32) on the junction between the shoulder and the cylindrical section (12) of the hub.