[Product Description] JDB series of guide pins and bushings / wear copper sleeve 1425 is in friction bearing surface of the metal substrate out of the appropriate size, arranged in order of the hole, and then embedded in the cavity has a unique self-lubricating properties of forming a solid lubricating agent made of self-lubricating bearings. The bearing combines the respective advantages of metal matrix and specially formulated lubricating materials, breaks through the general bearing rely on oil film lubrication limitations. Solid lubricating bearings are particularly suitable for oil-free, high-temperature, high-load, low-speed, anti-fouling, corrosion, anti- radiation radiation, as well as under water or vacuum infiltration solution is impossible to add lubricant film using special working conditions. The base should be based on solid lubricating bearings bearing their working conditions may be. Commonly used materials are high-strength brass, bronze, castings. The bearing their own working conditions, through a combination of different metal matrix and the embedded solid lubricant, can ensure that products meet the special needs of a variety of temperature, load, exercise and other media working conditions, while ensuring stable and reliable work. This material is (high force brass) [Application] The product is widely used in metallurgy rolling equipment, filling equipment, turbines, gas turbines, instrumentation, and mining machinery, shipbuilding, machinery, textile machinery, shipbuilding industry, space navigation, etc. fields. But also more and more widely used in other industrial and agricultural machinery. [Models, specifications] JDB series inner diameter of 14, 20 conventional outer diameter, height limitation, (such as 10,12,15,20,25,30) Non-standard sizes can be customized