internal teeth,outernal teeth,no teeth slewing bearing ring , ,turntable bearing We are slewing bearing ... Single-row crossed roller series.l Double-row ball series.l Three-row roller series.l Roller and ball combination series. l Light type ... ) International Trade Dept.Xuzhou Xinda Slewing Bearing Co., Ltd.Add:No.163 Third Ring Road,Xuzhou,Jiangsu,ChinaTel: 86-516-83206168 ...