JDB self-lubricating flanged bushings, flanges for graphite copper sleeve incorporates copper alloy (ZCuZn24Al6) wear resistance and self-lubricating properties of solid lubricants, so that in the course without refueling maintenance. The products are widely used in high load, intermittent or swing movement, such as the steam locomotive production lines, turbine and reservoirs work / accident doors, plastic machinery. According to the conditions used, can provide various types of copper alloy