Hefei King Slewing Bearing Technology Co.,Ltd. is a professional manufacturer and exporter of excavator slewing rings, its factory is located in Hefei city, Anhui Province, China, where is very close to Shanghai Port, goods can be easily transported all over the world.Our main product is excavator slewing bearing,hydraulic oil cylinder,slewing drive,travel reducer,gear partswe and we can now produce more than 1000 part numbers to match with many famous excavator brands, such as JCB, CAT,HITACHI, KOBELCO, HYUNDAI, VOLVO, DOOSAN, LIEBHERR, DAEWOO, CASE, SUMITOMO, KATO,etc...