Gears are very common machine components that enable precise transmission of rotational motion and power transmission from shaft to shaft. High demands are placed on the function of gears in operation. They must enable precise, uniform transmission, must not cause noise, often have to transmit large forces, etc. Gears are manufactured from a variety of materials and with different performance specifications depending on the industrial application. Gear materials are required to have high strength, toughness and wear resistance because gears rely on their own design size and material strength to withstand external loads. Material manufacturability is also necessary due to the complex shape of the gear and the high precision requirements of the gear. This study highlights trends in gear materials that are moving towards ultra-high strength, high wear resistance, high temperature resistance, corrosion resistance, and low weight.
Science Journal 