Composite self-lubricating material and graphite plugged bronze bushing oilless slide plate parts production technology Self-lubricating composite bearing materials and their products are manufactured in accordance with the modern theory of sliding bearing tribology, using metal, plastic, and solid lubricants in a special technical process. This type of Mold post ball cage bush ball cage retainer,self-lubricating composite bearing material has the characteristics of high mechanical strength, good self-lubricating and wear-resisting properties, strong bearing capacity and wide adaptability of composite bearings, which can meet the requirements of most working conditions in mechanical engineering. Used as a new generation replacement for rolling and plain bearings. Especially in poor lubrication conditions such as boundary lubrication and oil-free dry friction, the machine's working reliability and service life can be greatly improved, and machine noise can be reduced and maintenance costs can be reduced. At the same time, such SOBW SOBWN oilless washer, cast bronze wear washer,self-lubricating bearings also have good performance and price ratio, so they have gained more and more applications in modern mechanical engineering.