Stepper Motor Linear Actuators - Design Overview

The integration of the lead screw can also be done by integrating the nut of the lead screw into the stepper motor. In this situation, the nut would spin inside the motor, and the screw would translate back and forth. Rotating nut assemblies actuate by rotating a nut within the motor body. Motion is achieved by constraining the motor and translating a load attached to the lead screw or constraining the lead screw and translating a load attached to the motor.