Modern designs are taking on a huge need for today's self-lubricating bearing materials. Even in extreme extreme operating conditions and maximum load conditions are also required maintenance-free. With the continuous improvement of cost requirements, the reliability of equipment and plant operation requirements are also getting higher and higher. Metal self-lubricating bearings are designed for maintenance-free and self-lubricating conditions under long-term service conditions, thus making it possible to design reliable long-term self-lubricating systems. Metal self-lubricating bearing materials can be widely used in high-load low-speed conditions of rotation, swing and linear reciprocating motion, but also applies to traditional lubrication can not be achieved or prohibited to use the occasion, or in special conditions such as dust, Load or irradiation conditions need long-term and stable use.