JDBB inlaid solid self-lubricating bearings are designed with ribs, you can limit axial movement of the sleeve. The product is in the matrix of the copper alloy, a high-performance embedded solid graphite and MoS2 solid lubricant lubricating composite products. It breaks through the general bearing rely on oil film lubrication limitations. During use, heat through friction with the shaft friction of solid lubricants, forming oil, lubrication powder coexist to excellent condition, both axes do not care to save wear and tear, and solid lubrication characteristics eternity. It's harder than twice as high as the copper sleeve, wear it twice. Has been widely used in metallurgy even casting machine, the train bracket, rolling equipment, mining machinery, ships, gas turbines and other high-temperature, high-load, low-speed heavy other occasions. ? Matrix material: various alloy matrix hardness CuZn24AL6 etc: HB230-270 friction coefficient: <0.16 maximum operating temperature:? 300 ℃ Dynamic load limit: 100N / mm2 lm / min limit load: 25N / mm2 maximum sliding speed: Dry ? 0.4m / s oil 5m / s using the limit PV value:? 3.8N / mm2 * m / s??