Worm gears (or wormwheel gears) and worms (or worm drives) are made to interact to transfer movement between non-intersecting shaft at right angles. Worm gears and worms, which resemble spur gears and screws, respectively, combine to supply a high decrease ratio in a compact gear system. Our floor worm gears and surface worms are engineered for remarkably smooth and quite Enveloping Worm Gear operation.