Patent ID: 7670057
Filing Date: 2010-03-02
Classification: B60B,F16C,Y02T

Abstract:
1. A vehicle wheel bearing apparatus for a driven wheel comprising: an outer member integrally formed with a body mounting flange on its outer circumference, said body mounting flange is adapted to be mounted on a knuckle forming part of a suspension apparatus of the vehicle, and said outer member inner circumference includes double row outer raceway surfaces; an inner member includes a wheel hub and at least one inner ring, the wheel hub has a wheel mounting flange formed at one end portion and a cylindrical portion axially extending from the wheel mounting flange, the inner ring is press fit onto the cylindrical portion of the wheel hub, the inner member has a plurality of inner raceway surfaces adapted to be arranged opposite to the plurality of outer raceway surfaces; double row rolling elements are freely rollably contained, via cages, between the outer raceway surfaces and inner raceway surfaces, respectively, of the outer member and the inner member; and seals are arranged in annular spaces formed between the outer member and the inner member; said knuckle is integrally formed with a disc-shaped bottom; said outer member is adapted to be connected to the knuckle, via bolts, the body mounting flange has a flat surface on its inner side from the periphery of the flange to a seal fitting surface, said body mounting flange flat surface being abutted against the knuckle; and an inner side end of the inner member is covered by the knuckle.