gear distributors or agents, servo amplifiers, gear heads, zero backlash gear speed reducers, speed regulators, motion control systems, positioning components or systems, positioning xy tables, servo control equipment, positioning xy stages, robotic positioning devices, rotary positioning actuators, rotary robotic actuators, position controls, differentials, electrical variable speed drives, gear drives, gear head system design, speed reducer system design, positioning system design available from h d systems, inc based in hauppauge, ny. click the links below to visit our website or contact us via our profile page.