Taper Roller Bearing, the principal types of roller bearings are cylindrical, sphercial, and tapered. ISO9001:2000 Certificate. Taper roller bearing has tapered inner and outer ring raceways between which tapered rollers are arranged.Designation: 30215Dimension: d*D*B, 75*130*27.5mmBasic load ratings: dynamic 140kN, static 176kN.Fatigue load limit: 20.4 kNSpeed ratings: Reference speed 3800 r/min ...