Worm gears (or wormwheel gears) and 
worms (or worm drives) are created to interact to transfer motion between nonintersecting shaft at right angles. Worm gears and worms, which resemble spur gears and screws, respectively, combine to provide a high reduction ratio in a compact gear system. Our ground worm gears and floor worms are engineered for Enveloping Worm Gear exceptionally smooth and quite operation.