Product type: N20 worm gear DC motor (single unit) Voltage options: 3V, 6V, 12V (select the version that matches your system) Size: 20 mm diameter for compact installations Key mechanical feature: worm gear design with torque self-locking to resist back-driving and hold position when power is removed Performance note: the 6V version runs at approximately 13 RPM Why customers need this motor Precise low-speed rotation: the worm gear reduction gives slow, controllable output speed suitable for applications that need steady motion rather than high RPM. Holds position under load: the self-locking torque reduces or eliminates unwanted reverse motion without additional brakes, simplifying design and improving safety. Compact and easy to integrate: 20 mm diameter and standard N20 form factor fit tight spaces and common hobby or light-industrial mounts. Function and compatibility Function: DC-powered, geared output for higher torque at low speed; self-locking worm gear prevents back drive. Compatibility: Designed to work with 3V, 6V, or 12V DC systems depending on the chosen model. Fits N20 motor mounts and common small-robotics or actuator brackets. Practical performance information Choose voltage based on desired speed and torque characteristics; the listed 6V unit delivers about 13 RPM. The worm gear configuration prioritizes torque and holding capability over high speed. Typical applications Small automated valves and dampers where slow, controlled rotation and position holding are required. Camera or sensor pan mechanisms and precise positioning stages in hobby robotics or prototyping. Locking or latching mechanisms and small actuators that benefit from back-drive resistance. What you get One N20 worm gear DC motor, available in 3V, 6V, or 12V versions; 6V model speed ≈ 13 RPM; 20 mm diameter; torque self-locking worm gear. Specifications (as provided) Motor type: DC worm gear motor (N20) Voltage options: 3V / 6V / 12V Diameter: 20 mm Feature: torque self-locking Quantity: single unit 6V speed: 13 RPM