Customized German WEPO Rotating seal high speed PTFE food grade sealing ring pan plug seal
1 Product features of Rotating seal

Rotary oil seals are used to seal rotating machinery components to prevent leakage of internal media or to prevent invasion of external dirt . The choice of seal type depends on operating parameters such as operating medium , temperature , circumferential velocity , pressure , and ambient air conditions .
The rotary oil seal consists of a rubber assembly , a reinforced metal frame and a self-tightening spring .
The outer layer of rotary oil seal can be elastic rubber or metal , giving consideration to static sealing and fixing in the hole . The metal skeleton provides the stability necessary for rotating oil seals, while the spring exerts radial force against the axial surface of the seal lip through its own self-tightening force . Dust lip can also be used to protect against outside dirt and dust invasion .

2 Type of rotary seal of Rotating seal

According to the structural form , we can divide it into three basic types . WA type, skeleton rubber , with reliable sealing performance of the outer edge :WB type, exposed metal skeleton , installed in the hole stable and accurate positioning ; WC type, outer ring metal skeleton side with a sub-shell reinforcement of the combined oil seal with metal inserts , strong stiffness , suitable for harsh working conditions and difficult to install occasions .

3 Scope of application of Rotating seal

Rotary oil seal is mainly used for rotary shaft end seal , such as shaft, hub and axle in the following industries :
- Drive technology , such as transmission , motor and internal combustion engine .
- pump .
- Components in agricultural machinery and construction machinery exposed to extreme oil pollution to extend maintenance cycle and ensure service life .
- Household and industrial cleaning machines (white goods) . The oil seal material shall be resistant to high temperature and compatible with water and soapy water .
- The wind industry , shipyards and rolling mills in particular need large rotary oil seals .

4 requirements of Rotating seal

The main purpose of rotary oil seal is to ensure the reliability and sealing function of the seal . At the same time, in order to minimize heat generated in the area around the seal and thus minimize power losses, minor mechanical effects (such as shaft friction) should also be reduced. In addition , rotary oil seals should be simple in design and easy to install and remove .