Since 1952, Beaver Aerospace & Defense, a subsidiary of Phillips Service Industries (PSI), has been a global leader in the design and manufacturing of unique and broad-range ball screw and actuation solutions for the commercial and military aerospace and defense industries. In addition, we are a trusted FAA-certified repair station and FAA-Approved Parts & Components supplier. Beaver's ball screws, ball splines, gears and linear/rotary actuators, which include electric actuators and electromechanical actuators, are custom designed to fit virtually any application with superior performance, quality and precision. In fact, our actuation solutions are installed on some of the most advanced aircraft, missile applications and mission-critical space exploration systems in the world.