... and swing motor driving gearour company information is:•turn and walk reducer gear •NTN, NSK, SKF,KOYO and other bearing •turn ... and walk pads import •original new motor assemblv walk and rotary speed KOMATSU PC200-3,PC200 ... -7,HD800-5,HD800-7,HD820G,HD1023 driving gear of excavator/kobelco,SK210LC-8,YQ09U3612 /swing parts