What is the difference between a Machine Screw Actuator and a Ball Screw Actuator?
The machine screw actuator uses an acme threaded screw that is typically self-locking, which means it will hold its position without a brake. Ball screw actuators use ball screws to convert rotary motion to linear movement, and require 1/3 the horsepower compared to a machine screw actuator. Due to the efficiency of the ball screw, brakes must be used to stop and hold the load screw in position. Brakes are also recommended for use on any actuator if vibration is present.
