... 3. Even porosity and Long service life Product NameCopper Base Self-lubricated Flange BearingRaw MaterialsCu-10Sn, MPIF CT-1000-K26, ASTM ... . Density: 6.4-7.6g/cm35. Hardness: HB20-65ApplicationAutomobile, motorcycle, power tool, general mechanism, home appliances, office equipment, textile machinary, etc ... visit our factory at your convenient time!Mary Copper Base Self-lubricated Flange Bearing