| 摘要 |
A vehicle wheel bearing apparatus has an outer member, an inner member with a wheel hub and an inner ring. Double row rolling elements are freely rollably contained between the inner and outer raceway surfaces, respectively, of the inner member and the outer member. Seals are mounted in annular openings formed between the outer member and the inner member. The inner side seal of these seals comprises an annular slinger and an annular sealing plate. The sealing plate includes a steel plate metal core and a sealing member bonded to the metal core, via vulcanized adhesion. A plurality of sealing lips extends from the sealing member and is in sliding contact with the slinger. An outer circumferential lip is formed on the periphery of the sealing member. The outer circumferential lip extends radially outward. It has a substantially L-shaped cross-section and is adapted to fit into a gap between the outer member and a flange portion of a knuckle. An apex of the outer circumferential lip abuts against the flange portion of the knuckle with a predetermined engaging allowance.
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