... . OEM service and designed service offered 3. Material: Gcr15 Pillow block bearings:1. Material: Gcr15 Chrome steel, Stainless steel or Carbon ... : P0,P6,P5,P4,P2(ABEC1,ABEC3,ABEC5,ABEC7,ABEC9)7. Seal form: ZZ,2RS8. Range:UC200series: UCP201~UCP218UC300series:UCP301~UCP320UK ... ,bolt & nut, bucket ,teeth ,adaptor,muffler etc . High quality Pillow block bearings