Ball Screw Actuators

Ball Screw Actuators move loads and apply force more efficiently


The Duff-Norton Ball Screw Actuator range gives you a single- package, positive-action linear actuator which can be driven by an electric, air or hydraulic motor. A ball-bearing type heat treated screw and mating nut with rolling contact reduces friction to a bare minimum in converting torque to thrust.

Overall operating efficiency is as high as 70% in some models, depending on the ratio of the worm gear set. Because our ball screw actuator unit has been carefully engineered and pretested, you no longer have to purchase components from different suppliers and design your own system to achieve high levels of efficiency. So you save design, set- up and testing time.

Duff Norton Ball Screw Actuators are available in standard models and Continuous Duty Cycle type featuring oil bath lubrication for continuous operation applications.

Ball Screw Actuators

The Duff-Norton ball screw gives you a single- package, positive-action linear actuator which can be driven by an electric, air or hydraulic motor. A ball-bearing type heat treated screw and mating nut with rolling contact reduces friction to a bare minimum in converting torque to thrust.

Continuous Duty Cycle Actuators

Duff Norton Continuous Duty Cycle actuators are specifically designed for continuous operation. Drive train gearing operates in an oil bath providing high thermal efficiency and long life. The actuator gearbox housing is constructed from finned aluminum providing a high cooling capacity . Combined with the Duff-Norton ball screw system this further increases efficiency of this range. Continuous operation (at rated capacities only) provides -Increased predictable life , High mechanical and thermal efficiency with oil lubrication.