Our complete line of worms and worm gears can be ordered through the EP Gear Guaranteed Same Time Shipment System for the quickest delivery possible.
Product Features
90°, nonintersecting shaft applications answer highly specialized power transmitting 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.
Available 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 starts on the worm – and because increased efficiency is always a goal, the ratio ought to be kept only possible. To run correctly, worms and worm gears utilized 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 transmission applications requiring high-ratio acceleration reduction in a limited space using right angle (90°), non-intersecting shafts. When properly used, worms and worm gears provide 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 used as quickness reducers in low- to moderate-swiftness applications. And, because their reduction ratio is worm gear box assembly founded on the number 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 reduces efficiency, it provides extremely quiet operation. (The use of dissimilar metals for the worm and equipment also plays a part in quiet operation.) This makes worm gears suitable for use where sound should be minimized, such as in elevators. Furthermore, the usage of a softer materials for the gear means that it could absorb shock loads, like those experienced in weighty equipment or crushing machines.