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December 10, 2019

Our complete line of worms and worm gears could be ordered through the EP Gear Guaranteed Same Day Shipment Plan for the fastest delivery possible.
Product Features
90°, non-intersecting shaft applications solution highly specialized power transmission needs.
Our worm gears provide smoothest, quietest type of gearing.
They offer high-ratio speed reduction in minimal spaces.
Their efficiency is easily increased by decreasing ratios.
With some ratios, there is level of resistance to back driving.
Offered 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 lead angle and quantity of starts on the worm – and because increased effectiveness is always an objective, the ratio should be kept only possible. To run correctly, worms and worm gears used together will need to 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 limited space using right angle (90°), nonintersecting shafts. When properly applied, worms and worm gears provide the smoothest, quietest type of gearing.

The primary benefit of worm gears is their ability to provide high reduction ratios and worm gear box assembly correspondingly high torque multiplication. They can also be utilized as acceleration reducers in low- to medium-rate applications. And, because their decrease ratio is based on the amount of gear teeth only, they are more compact than other styles of gears. Like fine-pitch lead screws, worm gears are typically self-locking, making them ideal for hoisting and lifting applications.

Although the sliding contact decreases efficiency, it provides extremely quiet operation. (The utilization of dissimilar metals for the worm and gear also contributes to quiet operation.) This makes worm gears ideal for use where sound should be minimized, such as in elevators. Furthermore, the usage of a softer materials for the gear means that it can absorb shock loads, like those skilled in weighty equipment or crushing machines.