Our complete line of worms and worm gears can be ordered through the EP Gear Guaranteed Same Day time Shipment System for the quickest delivery possible.
Product Features
90°, non-intersecting shaft applications answer highly specialized power tranny needs.
Our worm gears provide smoothest, quietest type of gearing.
They provide high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by reducing ratios.
With some ratios, there is resistance to back driving.
Obtainable from 48 DP to 3 DP
Stocked as single, double and quad start configurations
Because the effectiveness of a worm gear drive depends upon the business lead angle and quantity of starts on the worm – and because increased efficiency is always a goal, the ratio ought to be kept only possible. To run properly, worms and worm gears utilized together must have the same diametral pitch and threads.
Worms & Worm Gears
EP Gear’s worms and worm gears provide an effective answer for power tranny applications requiring high-ratio rate reduction in a restricted space using right angle (90°), non-intersecting shafts. When properly used, worms and worm gears supply the smoothest, quietest kind of gearing.
The primary benefit of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They may also be utilized as speed reducers in low- to worm gear box assembly moderate-rate applications. And, because their decrease ratio is based on the number of gear teeth alone, they are smaller sized than other styles of gears. Like fine-pitch business lead screws, worm gears are typically self-locking, which makes them perfect for hoisting and lifting applications.
Although the sliding contact decreases efficiency, it provides extremely quiet operation. (The usage of dissimilar metals for the worm and equipment also plays a part in quiet operation.) This makes worm gears ideal for use 
where noise should be minimized, such as in elevators. Furthermore, the use of a softer material for the gear implies that it could absorb shock loads, like those skilled in heavy equipment or crushing devices.