Definition
A "worm gear" is a specific type of gearing mechanism consisting of a worm (a screw-like gear) that meshes with a worm wheel (a toothed gear). This setup is primarily used to reduce rotational speed and transmit power at a right angle. Think of it as a compact and efficient gearbox. Unlike spur gears, worm gears provide high gear ratios in a small space. They are ideal for applications needing high torque and speed reduction. Consider the inner workings of machinery.