... , construction machinery, and so on. Deep groove ball bearing Features:1.Structure:General,flanged,extended inner ring2.Shield / ... : AISI52100, AISI440C, AISI304, AISI316, Ceramic7.Retainer: PTFE, Nylon, PEEK Or Stainless Steel8.Bore Size:from 1mm to 300mm9 ... C4, C5Material: AISI52100, AISI440C, AISI304, AISI316...Retainer: PTFE, Nylon, PEEK Or Stainless SteelLubrication: Oil,grease,dryNoise Level: Z1, ...