1.roller bearing: 2.long life,OEM, 3Quick delivery,good service, 4.18 years supply bearing, 5.ISO9001:9002 quality. Roller bearing Product name: tapered roller bearingPrecision lever: P0 P5 P6Seal form: Open, z, zz, rs, 2rsMaterial: bearing steel, carbon steel, stainless steel, etc.Retainer: copper cage, nylon retainer, steel retainer, Bakelite retainer, etcQuality standard: ISO9001-2000Low noise ...