Excavator slewing ring by AOXUAN has been provided to China famous excavator manufacturer, including double row ball slewing bearing and single row slewing ring. Our slewing ring also supplied to excavator after market parts, model including HITACHI, KOMATSU, HYUNDAI, DOOSAN, KOBELCO, VOLVO, CATERPILLAR-CAT, JCB, SANY, XCMG, LIUGONG, ZOOMLION, YUCHAI,. etc.