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Skeleton Oil Seal Structure

- Jul 28, 2017 -

The skeleton oil seal structure consists of three parts: oil seal body, reinforced skeleton and self tightening helical spring. The sealing body is divided into the bottom, waist, edge and seal lip according to different parts. Usually, in the free State of the skeleton oil seal, the diameter is smaller than the shaft diameter, that is, a certain amount of "surplus".

As a result, when the oil is encapsulated in the oil seal and shaft, the pressure of the oil seal blade and the contraction force of the self tightening helical spring have a certain radial force on the shaft, after a period of time, the pressure will be reduced and even disappear, and the spring can compensate the oil seal self tightness at any time.

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