| 摘要 |
An oil sealing apparatus of a wheel bearing which can prevent the ingress of contaminating agents into a bearing and can reduce noise occurred by the contaminating agents by reducing abrasion of lips and distortion thereof is disclosed. The oil sealing apparatus includes an outer annular element having a lip, a seal rubber sealing an upper portion of an inner annular element with grease and having a plurality of lips, and grease sealed between the inner annular element and the seal rubber. The outer annular element is interposed in one side of the seal rubber and the lip of the outer annular element is constructed to cover a part of an upper portion of the inner annular element with being spaced apart at a certain interval therefrom.
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