Note: Because the efficiency of a worm gear drive depends upon the lead position and number of starts on the worm, the ratio ought to be kept low. To perform properly, worms and worm gears operating together will need to have the same diametral pitch and threads.

EP Gear provides worm gears produced from a variety of materials, such as for example acetal, minlon, bronze, and cast iron to suit your application’s requirements.

The pinion meshes with the teeth of the worm gear at 90 degrees, and motion is transmitted to the worm wheel when the worm pinion is rotated. Since the pinion is captivated axially, this rotation causes the worm wheel to rotate. The ratio of the worm established can be changed by changing the number of the teeth on the wheel or changing the amount of starts on the pinion.
When used with EP Equipment worms, EP Gear’s worm gears provide effective power transmitting in applications requiring high-ratio speed decrease in a limited space using right position (90°), nonintersecting shafts. They are also the smoothest, quietest form of gearing when correctly applied.

Just how do Worm Gear Units Transmit Motion?

A worm gear set is a set of gears comprising a worm (pinion) and a worm-wheel (worm equipment), often used when a high ratio is necessary and space is limited.