A reduction gearbox is a power transmission device. that uses gears of different sizes to form a gearbox. that connects a motor to a machine to reduce the number of revolutions of the motor and get a larger torque. Generally used for low-speed and high-torque transmission equipment. and that is a power transmission mechanism to uses the speed converter of gears. to decelerate the motor’s rotation number to the desired rotation number. at the same time to get a larger torque. So, the reduction gearbox is a relatively precise machinery. the motor, internal combustion engine, or other high-speed running power. through the reduction gearbox on the input shaft of the gear. with a small number of teeth meshed with the output shaft of the large gear to deceleration.