How does a Ball Screw Linear Actuator work?

How does a ball screw linear actuator work? Ball screw linear actuator is driven by the ball screw, guided by the linear guide rails, and equipped with a servo motor or a stepper motor. The ball screw linear actuator is a machine part which initiates movements when receiving feedback from motor control signal. The movements are within the range specified by the limit switches to prevent collision.  
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