Pillow block bearings 1. High quality, ISO9001:2008 2. OEM service and designed service offered 3. Material: Gcr15 Pillow block bearings:1. Material: Gcr15 Chrome steel ... ,V3,V45. Innder windage code: C0,C2,C3,C4,C56. Precision Grades: P0,P6,P5,P4,P2(ABEC1,ABEC3,ABEC5,ABEC7 ...