worms and worm gears provide an effective solution for power transmission applications worm & worm wheel requiring high-ratio velocity reduction in a limited space using right angle (90°), nonintersecting shafts. When properly used, worms and worm gears supply the smoothest, quietest type of gearing.
Because the performance of a worm equipment drive depends upon the lead angle and quantity of starts on the worm – and because increased efficiency is always a goal, the ratio should be kept as low as possible. To run correctly, worms and worm gears utilized together 
will need to have the same diametral pitch and threads.
Our complete type of worms and worm gears could be ordered through the Boston Gear Guaranteed Same Day time Shipment System for the quickest delivery possible.