A gear reducer is a mechanism by which the energy output of a high-speed motor or engine is redirected to turn another mechanical component at a lower rotational speed and at a higher torque. Gear reducers are devices that can take several forms. They are also referred to as gear boxes or gear shifters and are simple transmissions. Gear reducers also offer mechanical safety by reducing the speed of rotating equipment. In its most simple form, gear reduction takes place in set ratios that are related to a characteristic value of the input and output gear components.