As a dry bearing with the self-lubricating, usual sintering method graphite quantity Cu-Sn-C(graphite)sintered material opposite material S45C refining material frictional wear characteristics graphite quantity, etc. As the result, the graphite addition is more effective for the frictional wear, and as the graphite dosage is more abounding, effect. The wear resistance was the best than S45C hardening material and S45C as received of opposite material.