Focus on the Bearing Industry for 20 Years!
Impregnated composite bearing is sometimes called oil-free bearing and copper sleeve self-lubricating bearing. Oil-free bearing (SF-1) is a novel lubricating bearing with the characteristics of both metal bearing and oil-free bearing. The load is borne by the metal matrix, and the solid lubricating material with special formula plays the role of lubrication.
It takes porous material as the matrix and impregnates solid lubricant to form a solid lubricated impregnated composite bearing. The solid lubricant stored in the bearing bush continuously supplies solid lubricant to the friction surface with the wear of the bearing bush. A typical composite bearing is made of carbon graphite as the matrix material and impregnated with soft metal, polytetrafluoroethylene or inorganic matter (BaF2).
It has the characteristics of high bearing capacity, impact resistance, high-temperature resistance and strong self-lubricating ability. It is especially suitable for occasions where it is difficult to lubricate and form oil films, such as heavy load, low speed, reciprocating or swing, and is not afraid of water erosion and erosion of other acids. The majority of users generally reflect that the inlaid bearing not only saves oil and energy but also has a longer service life than ordinary sliding bearings. At present, the products have been widely used in metallurgical continuous casters, rolling equipment, mining machinery, ships, steam turbines, water turbines, injection moulding machines and equipment production lines.
Method for impregnating composite bearing
1. Vacuum impregnation is carried out by making the impregnation into a molten state.
2. Use the hardening liquid as the carrier, and place the impregnation in it for impregnation.
3. Use the volatile liquid as the carrier, disperse the impregnation, impregnate it, and then volatilize the liquid.
4. Impregnate the impregnated material after vaporization. The impregnation can not only lubricate, but also increase the strength of the matrix material.