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11. 发明授权

US5544963A Bearing seal assembly with specially dimensioned sealing lip 失效
标题翻译：轴承密封组件，带有特殊尺寸的密封唇
公开(公告)号：US5544963A
公开(公告)日：1996-08-13
申请号：US290306
申请日：1994-08-12
申请人： Kazuhisa Kajihara , Motoshi Kawamura , Kunio Yanai
发明人： Kazuhisa Kajihara , Motoshi Kawamura , Kunio Yanai
IPC分类号： F16C33/78 , F16J15/32
CPC分类号： F16C33/726 , F16C33/7823 , F16C33/7853 , F16C2240/40
摘要： A seal assembly interposed annularly between the inner and outer rings of a bearing assembly to seal an annular cavity formed between the inner and outer rings of the bearing assembly, the seal assembly having an annular seal member fitted onto the inner peripheral surface of the outer ring, a first annular seal lip, and a second annular seal lip, the first annular seal lip being in elastic-contact with the sidewall of an annular groove formed in the inner peripheral surface of the inner ring. The first annular seal lip has a radial length and an axial thickness satisfying a ratio (A/B) of the radial length (A) to the axial thickness (B), the ratio (A/B) being in the range of not less than 4.5 and not more than 7.0 to obtain a moderate rigidity capable of following the relative movement of the inner and outer rings. Communicating grooves are formed in the lower end portion of the first annular seal lip for communicating between the inside and outside of the bearing assembly, in order to prevent an increase in pressure within the bearing assembly because of a rise in temperature within the bearing assembly.
摘要翻译：一种密封组件，其环形地插入在轴承组件的内圈和外圈之间，以密封形成在轴承组件的内圈和外圈之间的环形空腔，密封组件具有安装在外圈的内周表面上的环形密封件第一环形密封唇和第二环形密封唇，所述第一环形密封唇与形成在所述内圈的内周表面中的环形槽的侧壁弹性接触。第一环形密封唇具有径向长度和轴向厚度，其满足径向长度（A）与轴向厚度（B）的比（A / B），比率（A / B）在不小于以获得能够跟随内圈和外圈的相对运动的中等刚性。在第一环形密封唇缘的下端部形成有沟槽，用于在轴承组件的内部和外部之间连通，以防止由于轴承组件内的温度上升而导致轴承组件内的压力增加。

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