External Gear Slewing Bearing: It Is Convenient To Process The External Gear, Can Make Full Use Of The Limited Space Of The Slewing Support, And Is Easy To Diagnose Faults And Check The Meshing Of Gears. Because Of The Large Diameter Of The Ring Pitch, It Can Better Obtain A Larger Transmission Ratio And Greatly Reduce The Circumferential Force And Torque On Pinion. url:http://www.hnzkmachinery.com