The reason of the seal's failure was analyzed. A new mechanical seal was developed which has an edge-seal end face, and the rubber lip seal was replaced by the mechanical seal.

设计一种刃口型密封端面的机械密封，代替原泵轴封采用的橡胶油封。

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This paper introduces the design, manufacture, and testing results of rubber seals with replaceable lip.

本文介绍了“可更换唇口橡胶油封”的设计，试制及试验结果。

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Rubber boot must have double groove on lip and not single as per your sample.

胶靴 启动槽上必须有双重唇而不是单一的按你的样品。

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For instance, the Encore features a flat aluminum ring with a hinged, curved arm that stands a tablet up against a rubber lip on the other side of the ring, and it looks nice even when not in use.

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