A self-lubricating rubber seal is made by adding lubricating oil to the rubber material. After the rubber product is vulcanized and formed, the surface of the rubber seal is smooth and lubricated, which can reduce friction. Polytetrafluoroethylene (PTFE) has excellent properties such as chemical stability, high and low temperature resistance, low friction coefficient, and self-lubricating properties, so it has been widely used in all walks of life. Therefore, the material of the self-lubricating rubber seal is mostly polytetrafluoroethylene. There are also choices of nitrile rubber and silicone rubber materials, depending on the situation.
Compared with other rubber seals, self-lubricating rubber seals have the following advantages:
It is suitable for places where it is impossible or difficult to refuel, and can be used without maintenance or with less maintenance. Good wear resistance, low friction coefficient, and long service life.
It has a moderate amount of elasticity and plasticity, which can distribute stress on a wider contact surface and improve the bearing capacity of the bearing. The static and dynamic friction coefficients are similar, which can eliminate creeping at low speeds, thereby ensuring the working accuracy of the machine. It can reduce vibration, reduce noise, prevent pollution, and improve working conditions.
During operation, a transfer film can be formed to protect the grinding shaft without biting the shaft. The hardness requirement for the grinding shaft is low, and the shaft that has not been quenched and tempered can be used, thereby reducing the difficulty of processing related parts. Thin-walled structure and light weight can reduce the size of the machine.
The back of the self-lubricating rubber steel can be electroplated with a variety of metals and can be used in corrosive media; it has been widely used in the sliding parts of various machines, such as: printing machines, textile machines, tobacco machinery, micromotors, automobiles, motorcycles, agricultural and forestry machinery, etc.
