Ball Screws
Ball screws utilize ball bearings between the screw and nut, drastically reducing backlash.
With up to 90% efficiency, ball screws are widely used in applications requiring high precision and repeatability which include but are not limited to: robotics, CNC machines and linear actuators.
Due to the high mechanical efficiency of ball screws, the torque requirement to operate a ball screw is approximately 30% of conventional screw driven transmission.