Worm gears (or wormwheel gears) and worms (or worm drives) are created to work together to transfer movement between nonintersecting shaft at right angles. Worm gears and worms, which resemble spur gears and screws, respectively, combine to supply a high Enveloping Worm Gear decrease ratio in a compact gear system. Our surface worm gears and ground worms are manufactured for remarkably smooth and quite operation.