Abstract: In one embodiment, a device for generating ultra-high precision rectilinear movement based on aerostatic suspension and magnetic traction, the device including a nut, a leadscrew, a thrust bearing, a contactless motor, and feedback drive electronics. The contactless motor provides the actuation by turning the leadscrew which is made of magnetically soft materials and has a pitched helical groove machined on its surface. The leadscrew passes through the core of the nut which is free to move in a rectilinear motion on a aerostatically suspended guide. The nut, also made with magnetic material, has a matching helical groove in its core so that a closed magnetic circuit is formed between the grooves of the leadscrew and the nut. The closed circuit in turn provides the necessary magnetic traction to move the nut in a rectilinear fashion. A primary aerostatic suspension is utilized to stabilize and center the leadscrew and nut transversally.