Gear motors are toothed wheel and can either be cylinder or cone. Gear motors transmit motion from one part of a machine to another. Gears are of many types including spur gear, helical gear and bevel gear and hypoid gears. Gear motors are complete motive force systems consisting of an electric motor and a reduction gear train all in one easy-to-mount and -configure package. Gear motors are used in lifts, winches, medical tables, jacks and robotics. Gear motors can be large enough to lift a building or small enough to drive a tiny clock.