A worm drive is a type of gear arrangement in which a worm (screw) meshes with a worm gear (similar to a spur gear) to achieve high reduction ratios in a compact form. It's commonly used in applications where space is limited, speed reduction is needed, or non-reversible motion is desired. 🔧 Key Features of a Worm Drive: High Reduction Ratio: A single worm gear can achieve large reductions (e.g., 20:1, 60:1, or more). Great for applications that need a large speed drop with limited space. Non-Reversible Motion: In many cases, the worm can turn the gear, but the gear cannot turn the worm (self-locking), making it useful in lifting or hoisting mechanisms. Compact Design: Offers reduction in a small footprint compared to traditional gear trains. Quiet and Smooth Operation: Worm drives tend to run quietly, especially at lower speeds.