Our complete type of worms and worm gears can be ordered through the EP Equipment Guaranteed Same Day Shipment Plan for the fastest delivery possible.
Product Features
90°, nonintersecting shaft applications answer highly specialized power tranny 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 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 equipment drive depends on the business lead angle and number of begins on the worm – and because increased effectiveness is always a goal, the ratio should be kept only possible. To run properly, worms and worm gears used 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 transmitting applications requiring high-ratio speed reduction in a limited space using correct angle (90°), non-intersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest type of gearing.

The primary advantage of worm gears is their capability to provide high reduction ratios and correspondingly high torque multiplication. They can also be utilized as quickness reducers in low- to medium-rate applications. And, because their decrease ratio is founded on the number of gear teeth by itself, they are more compact than other styles of gears. Like fine-pitch lead screws, worm gears are usually self-locking, which makes them perfect for hoisting and lifting applications.

Although the sliding contact decreases efficiency, it provides very quiet operation. (The utilization of dissimilar metals for the worm and equipment also plays a part in quiet procedure.) This makes worm gears suitable for use where sound should be minimized, such as in elevators. In addition, the use of a softer material for the gear means that it could worm gear box assembly absorb shock loads, like those experienced in large equipment or crushing machines.