Auto water pump bearing 1.Material:GCr15,100Cr6,52100 2.Retainer:nylon cage,steel cage 3.Reliable quality Auto water pump bearingsStructure: Water pump bearing is the most important part of the water pump.Clearance: Normal radial clearance is 15-35μm.Material: GCr15 (100Cr6),the quenched surface hardness reaches 60-64HRCAuto water pump bearing Bearing No. Bearing No. ...