A wheel hub bearing unit

摘要

In a vehicle wheel hub bearing unit the bearing forms a rotating radial flange (11) adapted for securing to a radial flange (12) of a disc or drum brake member and rotate fixedly therewith. The brake flange (12) is located in the same radial plane of the bearing flange (11) and secured directly to the peripheral portion thereof. Radial bulk of the bearing assembly is reduced and deformation of the bearing races and braking surface is avoided.