The grooved tile has a special soft and hard rotating surface. The harder material determines its wear resistance. The softer material in the groove determines its mosaicity, and the effective life of the coating is also improved; Compared with the three-metal bearing, its main advantage is that it has extremely high wear resistance and good friction performance. Such bearings are capable of meeting certain often contradictory requirements: they must have sufficient strength to withstand the highest oil film pressure and be soft enough to slow metal-to-metal contact during overheating. The grooved tile is partially relieved due to the absence of abrasion and the groove, and the wear is intensified later, only one third of the ordinary bearing bush. In addition, the grooves prevent the propagation of cracks in the coating. When the coating partially disappears from the groove, the shape of the lubricating oil film gap changes, and the bearing bush can continue to operate safely without occlusion, and the wear of the bearing pad is stabilized at a lower rate. These have a great impact on reducing the risk of fatigue, extending the useful life or increasing the load capacity per unit load.

Dafeng Industrial (Yantai) Co., Ltd. is located in the shore of the Yellow Sea, beautiful scenery and convenient transportation in Yantai. It is the only enterprise in China invested by Dafeng Industrial Corporation in China to produce bushes, bushes and thrust pieces. It is also the sixth foreign subsidiary after the United States, South Korea, Hungary and Indonesia. The total investment is US $38 million, the registered capital is US $20 million, and the existing staff is 416, occupying an area of 84000m2.

With advanced equipment and technology from Dafeng Industrial Co., Ltd., the company has rapidly improved the level of equipment automation. The product variety covers the market of medium and heavy, light and sedan. The annual production capacity has reached 60 million pieces, the products are complete and the quality is stable. The ISO/QS9000 international quality system has passed through the British UKS. Certification, Austria OQS ISO/TS16949:2002 quality system certification, is the domestic introduction of the world's famous engine axle supporting enterprises, for the United States Cummings, Dongfeng Cummings, FAW big Chai, Changan automobile, FAW car, the Great Wall automobile, FAW seahorse, Weichai, Shangchai, Chang Fu, Fukuda, Tianjin TOYOTA And other key engine factory supporting enterprises, Cummings series products are exported to Europe and the United States and Southeast Asia. The company has become the most comprehensive enterprise in the field of professional design, manufacture and sales of special sliding bearings and other accessories.