The effectiveness of a worm equipment transmission depends to a massive extent on the helix angle of the worm. Multi-threaded worms and gears with higher helix angles have proven to be twenty five% to 50% much more productive than solitary-threaded worms. The sliding motion of the worm meshing with or meshing with the worm gear benefits in substantial friction and decline of performance compared to other types of gears. Improve efficiency with hardened and ground worm change bronze worm gears.