Four row large sized tapered roller bearings 1.Domestic BRAND 2 High precision,low noise,high speed 3.High Qualtity Four row large sized tapered roller bearings O(∩_∩)O~ 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, ...