Gearbox has a wide range of applications, such as in wind turbines. Gearbox is an important mechanical component widely used in wind turbines. Its main function is to transfer the power generated by the wind wheel under the action of the wind to the generator and make it obtain the corresponding speed.

Generally, the speed of the wind wheel is very low, far from the speed required by the generator for power generation, which must be achieved by the speed increase effect of the gearbox gear pair, so the gearbox is also called the speed increase box.