Abstract：Jiangsu Sanyuan Auto Parts Co., Ltd. is a new type of enterprise with R&D, production and sales in China's auto parts industry.The company is located in "Jiangnan Millennium Ancient Town" Liyang City , Jiangsu Industrial Park shezhu,Close to 104 National Road,Nanjing Lukou Airport,Wuhu-Shanghai canal,Yang (State) LI (Yang) Expressway,Beautiful environment, convenient transportation.

Abstract：Sliding bearings do not distinguish between inner and outer rings or rolling elements, and are generally made of wear-resistant materials. Commonly used in low speed, heavy load, lubricating oil filling, and difficult to maintain mechanical rotating parts.

Abstract：The centripetal needle roller and cage assembly (needle bearing) is an independent rolling element, with a wide spacing between the two guide surfaces of the cage, which can accurately guide the needle and maintain the correct position of the needle. This type of bearing is suitable for situations where the shaft and seat hole can serve as a raceway. Simply machining the raceway of the shaft and bearing seat hole to the specified dimensional and geometric accuracy can ensure high rotational accu

Abstract：In the Asian market, Japan is the largest market for Chinese bearing exports. Mainly because in recent years, its development focus has been on high value-added bearings, while ordinary bearings mainly rely on imports. The quality of Chinese ordinary bearing products is comparable to that of Japanese products, and the price is low.

Abstract：The main shaft bearing lubricating oil using rolling bearings is generally considered based on the product of the inner diameter d of the bearing and the main shaft speed n, which includes the speed factor dn, the working temperature T of the bearing, and the load P borne by the bearing. The variety of lubricating oil can be selected from Japan Central Oil Chemical (COC) high-temperature resistant grease bearing oil, which can be determined based on product variety, operating conditions, and vis