A gearbox is a transmission in a machine using a power transmission supply. It provides the controlled application of power. It is also called a five-speed transmission. Gears and gear trains are used to provide speed and torque conversions from a rotating power source to another device. Two Brazilian engineers, José Braz Araripe and Fernando Lehly Lemos, invented the first automated transmission in 1932.
What does a gearbox do?
A gearbox functions as a system of gears by altering the torque and speed between a driving device such as a motor and a load. It is a mechanical method of transferring energy from one device to another where torque can be increased while reducing speed.