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Helix Linear Technologies' NEMA 14 Single Stack Captive Lead Screw Stepper Motor Actuators integrate a NEMA 14 single stack bipolar stepper motor with 0.025 inch and 0.25 inch diameter lead screws and a built-in anti-rotation guide for precise, controlled stroke linear motion in an ultra-compact, low-profile footprint. Available with 500 CPR encoder or no-encoder across multiple lead options and stroke lengths up to 2 inches for medical devices, lab automation, robotics, semiconductor, and space-constrained positioning applications. U.S.-made.