The steering gears commonly used in modern cars include recirculating ball steering gear, worm crank finger pin steering gear, rack and pinion steering gear, etc. Among the global automobile manufacturers, the automobile circulating ball steering gear accounts for nearly half of the market share, the rack and pinion steering gear accounts for nearly 40%, the worm crank finger pin steering gear accounts for more than 10%, and other steering gears basically disappear in the market. The United States and Japan attach great importance to the use of recirculating ball steering gear, and their proportion has exceeded 90%. In Japan, almost all buses use recirculating ball steering gear, and most large and medium-sized trucks also use recirculating ball steering gear. About 65% of micro trucks use recirculating ball steering gear, and more than 35% of rack and pinion steering gear. Europe attaches great importance to the use and development of rack and pinion steering gear. In medium, small and micro buses, the proportion of rack and pinion steering gear has exceeded half, and some countries have even reached more than 90%.
Foreign countries have made great efforts in the research and design of automotive rack and pinion steering gear, realized the professional design, manufacturing, processing and production of automotive steering gear, and greatly improved the quality and efficiency of steering gear. In Japan, NSK’s steering gear has occupied the domestic market with the advantage of high quality and low price, and gradually sold all over the world. ZF steering gear company in Germany is a large company specializing in the production of steering gears. It has produced millions of steering gears every year since the 1950s. In addition, Delphi company of the United States and Burman company of the United Kingdom are very famous steering gear production companies, which produce many types of rack and pinion steering gears every year. The specialized design, manufacturing, processing and production of foreign steering gear has become a trend, which can make the steering gear high quality and low price, realize mass production and quickly occupy the international market.