Xuzhou Rothe Erde Slewing Bearing (XREB, 徐州罗特艾德回转支承有限公司) is a company engaged in the production of slewing bearings and industrial steel balls. Its products are used in construction machinery, wind power generation, port equipment, offshore platforms, metallurgy, mining, and other fields. The company is a joint venture of XCMG Group and ThyssenKrupp Rothe Erde.