In the whole mechanical field, mechanical gear is a widely used mechanical transmission part, which has the advantages of compact structure, stable transmission ratio, high transmission efficiency and long service life. In China, people have started to use gears since the ancient times of 400-200 BC. With the development of social production, mechanical gear, as the key core component, is also receiving more and more attention.
Mechanical gear is mainly used to transmit the motion and power between any two shafts. It is usually used with worm, chain and other toothed parts to complete the tasks of increasing torque, transferring force between points, changing the direction of movement, increasing speed, reducing speed, changing torque, and splitting the transmission force.
Mechanical gears are used in a wide range of fields, such as energy, petrochemical, metallurgy, steel, materials and other heavy industries, as well as automobiles, aviation, ships, agricultural machinery, and even mechanical watches, alarm clocks, air conditioners, washing machines and so on, which are common in our daily life. Different types of mechanical gears and gear combinations play different roles in different industries.