Our complete type of worms and worm gears can be ordered through the EP Gear Guaranteed Same Time Shipment Plan for the fastest delivery possible.
Product Features
90°, nonintersecting shaft applications solution highly specialized power transmission needs.
Our worm gears provide worm gear box assembly smoothest, quietest type of gearing.
They offer high-ratio speed decrease in minimal spaces.
Their efficiency is easily increased by decreasing ratios.
With some ratios, there is level of resistance to back driving.
Available from 48 DP to 3 DP
Stocked as single, double and quad start configurations

Because the efficiency of a worm gear drive depends upon the business lead angle and quantity of begins on the worm – and because increased performance is always an objective, the ratio should be kept as low as 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 transmitting applications requiring high-ratio acceleration reduction in a restricted space using correct 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 capability to provide high reduction ratios and correspondingly high torque multiplication. They may also be utilized as speed reducers in low- to medium-quickness applications. And, because their decrease ratio is founded on the number of gear teeth alone, they are smaller sized than other styles of gears. Like fine-pitch lead screws, worm gears are usually self-locking, making them ideal for hoisting and lifting applications.

Although the sliding contact reduces efficiency, it provides very quiet operation. (The usage of dissimilar metals for the worm and gear also contributes to quiet procedure.) This makes worm gears suitable for use where noise should be minimized, such as in elevators. In addition, the use of a softer materials for the gear means that it can absorb shock loads, like those skilled in large equipment or crushing devices.