The gear box motor is a mechanism where a number of planetary gears rotate around a sun gear, which reduces the transmission speed ratio and increases the torque of the motor proportionally.Compared with other gear types,it has lower noise,less backlash and better efficiency, higher stiffness and long service life. It was initially used with motors. It is also used in the sunshade industry, office automation,medical equipment, smart home, production automation, financial machinery, game machines,automatic curtains, smart toilets, lifting systems, advertising light boxes and other fields. The main diameters of the planetary gearbox of our company are 16mm,22mm,28mm,32mm,36mm. We provide the customized design service regarding torque, speed, dimension etc..