Wheel bearing unit for use in angular contact ball bearing of vehicle, comprises two primary rows of balls and two secondary rows of balls arranged parallel to primary rows

摘要

The wheel bearing unit (21) comprises two primary rows (12,13) of balls and two secondary rows (11,14) of balls arranged parallel to the primary rows. A common outer ring (2) is provided encasing the balls radially outward. A central rib (27) is provided, which has a central inner raceway (28), where the cylinder rollers roll out in the central inner raceway in a load bearing manner.