Worm gears (or wormwheel gears) and worms (or worm drives) are made to work together to transfer movement between non-intersecting shaft at right angles. Worm gears and worms, which resemble spur gears and screws, respectively, combine to provide a high reduction ratio in a concise gear system. Our Ground Worm shaft surface worm gears and surface worms are designed for remarkably smooth and quite procedure.