TC oil seal Structure and model

A TC skeletal oil seal consists of three parts: the seal body, the reinforced skeleton and the self-tightening helical spring.

The seal body is further divided into the bottom, waist, blade mouth and sealing lip according to different parts. Usually, in the free state of the skeleton oil seal, its inner diameter is smaller than the outer diameter, that is, it has a certain “interference amount”. Therefore, when the oil seal is installed into the oil seal seat and shaft, the pressure of the oil seal blade mouth and the contraction force of the self-tightening helical spring will produce a certain radial clamping force on the shaft. After a period of operation, the pressure will quickly decrease and even disappear, so the spring can compensate the self-tightening force of the oil seal at any time. The general function of the skeleton oil seal is to isolate the lubricated parts in the transmission parts from the output parts, so as not to let the lubricating oil penetrate. It is usually used as a rotary shaft lip seal for rotary shafts.