A slew drive worm is a compact gear mechanism used for high-torque and precise rotational control. It consists of a worm gear and a worm wheel, which work together to deliver substantial torque while maintaining a small size. This design ensures smooth, accurate movement and self-locking capabilities to prevent back-driving. Slew drive worms are commonly used in construction machinery, wind turbines, automotive systems, and industrial equipment, providing reliable performance in space-constrained and demanding applications.