Taper Roller Bearins 1. High quality, ISO9001:2008 2. OEM service and designed service offered 3. Material: Gcr15 Tapered Roller BearingMaterialGCr15 (Chrome)Bore Size15-150mmOutside Diameter25-270mmModel ... V2,V3,V4 5. Innder windage code: C0,C2,C3,C4,C5 6. Precision Grades: P0,P6,P5,P4,P2(ABEC1,ABEC3,ABEC5,ABEC7 ... with TS16949 and ISO9001/2000 quality control system. Axle Tapered Roller Bearing