Elevator Traction Machine, Traction elevators are designed so that the cabs are usually pulled over a sheave (deeply grooved pulley) that is turned by an electric motor by the steel ropes or flat steel belts having a counterweight at their ends.

Elevatoe Gearless Machine, Gearless elevator motors can be smaller than geared elevator motors because they do not have gears. The gearless motors can be smaller than 1⁄2 of the geared motor. This makes the gearless motors more effective when it comes to the use of electricity. By making the engine smaller, the other parts would also be smaller.