LLinyi Kaiyuan Bearing Co., Ltd. is an executive director unit of the China Bearing Industry Association, a designated manufacturer for cooperation and supporting in the Chinese automotive industry, a key enterprise in the automotive industry in Shandong Province, with an academician workstation, a provincial-level technical center, an industrial design center, and a Shandong Province maintenance free wheel hub bearing unit engineering laboratory. It has self operated import and export rights. The company's main products are tapered roller bearings, which are mainly used in various types of automobiles/cars, metallurgical machinery, machine tools, mining machinery, engineering machinery, and various agricultural machinery. They are sold to more than 20 provinces, municipalities, and autonomous regions across the country, and are matched with more than 100 domestic host manufacturers such as "FAW", "Erqi", "Shaanxi Automobile", "Beiqi Futian", "Jinlong Bus", "Shifeng", etc. They are also exported to countries and regions such as Eastern Europe, the Middle East, South Africa, Denmark, South Korea, India, and Ukraine. The "Yimeng" trademark has been recognized as a "famous trademark in Shandong Province", and the "Yimeng" brand tapered roller bearings have been awarded the "Shandong Famous Brand Product" and "National Quality Stable Qualified Product". The products have been successively recognized as "premium bearings".

In order to adapt to the rapid development pace of the modern automotive industry, Shandong Zhuyan Precision Bearing Co., Ltd. Was established in July 2013. According to different customer requirements, various specifications and types of automotive wheel hub bearing units, plug-in wheel hub bearing units, automotive wheel hub combination units, automotive main cone units and other products have been developed and manufactured. High precision CNC rolling element centerless grinding and five axis CNC guide wheel grinding have been successfully developed, realizing the grinding processing of profile rollers.