... ,komatsu hitachi kato kobelco 2,sumitomo daewoo hyundai 3,caterpillar swing and swing motor driving gearour company information is:•turn and walk reducer ... and other bearing •turn and walk pads import •original new motor assemblv walk and rotary speed KOMATSU PC200-3,PC200-5 ... ,HD820G,HD1023 driving gear of excavator/kobelco,SK210LC-8,YQ09U3612 /swing parts