The development of the machinery industry is extremely rapid. Nowadays, as the craftsmanship of our metal products becomes increasingly superior, the performance of machinery will also improve. Don't underestimate such small components as self-lubricating bearings; they play a very important role in large-scale machinery. The advantages of sliding bearings are simple form, large contact area, stable and reliable operation, and no noise.　

Self-lubricating bearings, with their unique performance and economy, are widely used both at home and abroad. The base of this copper sleeve is made of high-strength and high-hardness copper alloy, with its hardness and strength more than double that of ordinary copper sleeves. The surface of this copper sleeve is drilled and inlaid with an oil-containing solid lubricant mainly composed of graphite, and the lubrication area accounts for approximately 25%　

Oil-impregnated bearings are sintered bodies made mainly from metal powder by powder metallurgy. They are inherently porous and have technical advantages such as the ability to freely adjust the number, size, shape and distribution of pores during the manufacturing process. By taking advantage of the porosity of the sintered body, it can be impregnated with 10% to 40%(by volume fraction) of lubricating oil and used in a self-lubricating oil supply state.　

The JDB solid inlaid bearing series is a universal basic product that can adapt to high pressure, low pressure, high temperature, low temperature, oil-lubricated, oil-free lubricated and water-lubricated conditions. The base of the product is high-strength brass, which is twice as hard and more than twice as wear-resistant as ordinary copper sleeves.