A good The plane oil seal is that, in addition to size, its sealing performance must be considered. The sealing structure parameters of the customized The plane oil seal have a great influence on one aspect, which can also be said to be fatal.

　　1. The lip interference S of the customized The plane oil seal: The interference refers to the difference between the lip diameter and the shaft diameter in the free state. It generates the radial force when the lip is free of springs and compensates for shaft eccentricity. Therefore, it is very important to choose an appropriate amount of interference.

　　2. The R value of the oil seal: The R value is the distance from the plane of the lip of the specified sealing ring to the center plane of the spring groove, and the value should be controlled within a reasonable range.

　　3. Customize the length of the lip waist of the seal ring: the lip waist is like a cantilever beam, the end of the inner diameter of the metal frame can be understood as the fulcrum of the cantilever, and the lip of the sealing length L can be understood as the cantilever. endpoint. The end points float with the axis in rotation to ensure that the lip follows and conforms to the axis.

　　4. The thickness t of the lip waist of the oil seal: the thickness of the waist is one of the important parameters affecting the follow-up performance and sealing performance of the oil seal of the skeleton shaft lip seal.

　　5. Front lip angle a of the sealing ring: refers to the angle between the front lip surface of the sealing lip and the shaft, a is generally between 45° and 60°, if a is too large, the lip is too sharp, although the early sealing effect is good , but is easily worn out.

　　6. The rear lip angle β of the customized The plane oil seal: refers to the angle between the lip and the center line of the shaft. β is generally between 12° and 30°, and generally when β is 12°