1.ISO9001:2000 2.service :OEM 3.Supply sample for free 4.Material: Ring Material Chrome Steel ,Carbon steel,Stainless steel drawn cup needle roller bearing nav4010:1.product details: Model Numbernav4010Brand NameBETTONStructureneedleTyperollerBore Size50mmOutside Diameter80mmwidth30mmSeals TypeOpenCage noClearanceC0,C2,C3,C4,C5VibrationZv1,Zv2 and Zv3Precision RatingP0,P6,P5GreeseAs you ...