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 decrease ratio in a Enveloping Worm Gear compact gear system. Our surface 
worm gears and surface worms are engineered for exceptionally smooth and quite procedure.