Worm gears (or wormwheel gears) and worms (or worm drives) are made to work together to transfer motion 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 concise gear Enveloping Worm Gear system. Our ground worm gears and ground worms are designed for remarkably smooth and quite procedure.