Shaft-to-lead screw couplers are not needed with this design, thus saving time, money and labor during assembly into the final application assembly. The external linear actuator replaces four different components—a motor, coupler, lead screw and nut. The actuators are available in a variety of resolutions ranging from 0.000125in. (0.003175mm) per step to 0.002in. (0.0508mm) per step, and deliver thrusts of up to 30 lbs. (133N). Haydon Switch & Instrument Inc.www.hsi-inc.com800.243.2715