pillow block bearing 1)Gcr15(AISI52100) chrome steel 2)Hardness:HRC60~ ... )Z1,Z2,Z3,Z4 4)P0,P1,P2,P3,P pillow block bearing UCFL300series 1)Radial insert ball bearings are particularly ... housingare matched ti each other.3)Housing materials cast iron pillow blocks/cast iron plummer blocks/sheet steel housing/plastic housing ...