Our complete line of worms and worm gears could be ordered through the EP Gear Guaranteed Same Day time Shipment Program for the quickest delivery possible.
90°, non-intersecting shaft applications answer highly specialized power transmission needs.
Our worm gears offer the smoothest, quietest kind of gearing.
They provide high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by decreasing ratios.
With some ratios, there is resistance to back driving.
Obtainable from 48 DP to 3 DP
Stocked as single, dual and quad start configurations
Because the efficiency 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 should 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 a highly effective answer for power tranny applications requiring high-ratio acceleration reduction in a restricted space using right angle (90°), non-intersecting shafts. When properly used, worms and worm gears provide the smoothest, quietest form of gearing.
The primary advantage of worm gears is their ability to provide high reduction ratios and correspondingly high torque multiplication. They can also be utilized as velocity reducers in low- to moderate-velocity applications. And, because their decrease ratio is founded on the number of gear teeth alone, they are smaller sized than other types of gears. Like fine-pitch lead screws, worm gears are typically self-locking, making them perfect for hoisting and lifting applications.
Although the sliding contact decreases efficiency, it provides very quiet operation. (The use of dissimilar metals for the worm and equipment also plays a part in quiet procedure.) This makes worm gears ideal for use where noises should be minimized, such as in elevators. In addition, the use of a softer materials for the gear means that it could absorb shock loads, like those experienced in large equipment or crushing machines.
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