Copper-based oil bearing combines the properties of copper alloy and the self-lubricating properties of solid lubricants, so that it does not need oiling and maintenance during use. Products are used for high load, intermittent or swinging motion, such as automobile and motorcycle production lines, water turbines, reservoir work/accident doors, plastic machinery, etc. Various types of copper alloys are available depending on the working conditions of use.

Copper-based oil bearing is made of tin bronze powder as raw material, pressed by mold, sintered at high temperature and shaped. Its matrix has fine and evenly distributed pores, which form an oily state after vacuum impregnation with lubricating oil.
Copper-based oil bearing products have the characteristics of short-term no oil lubrication, low cost of use, and changeable inner and outer diameters, and are suitable for use in medium-speed and low-load places. Copper-based oil bearing products have been used in household motors, electric tools, textile machinery, chemical machinery, automobile industry and office equipment and other occasions.