worms and worm gears provide a highly effective worm & worm wheel solution for power transmission applications requiring high-ratio rate reduction 
in a limited space using right angle (90°), non-intersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest form of gearing.
Because the performance of a worm gear drive depends on the lead angle and quantity of starts on the worm – and because increased efficiency is always an objective, the ratio should be kept only possible. To run correctly, worms and worm gears used together must have the same diametral pitch and threads.
Our complete type of worms and worm gears can be ordered through the Boston Gear Guaranteed Same Day time Shipment Plan for the fastest delivery possible.