Note: Because the effectiveness of a worm equipment drive depends on the lead position and number of starts on the worm, the ratio ought to be kept low. To run properly, worms and worm gears operating together must have the same diametral pitch and threads.

EP Gear offers worm gears manufactured from a variety of materials, such as acetal, minlon, bronze, and cast iron to fit your application’s requirements.

The pinion meshes with the teeth of the worm gear at 90 degrees, and movement is transmitted to the worm wheel when the worm pinion is rotated. Since the pinion is definitely captivated axially, this rotation causes the worm wheel to rotate. The ratio of the worm established can be modified by changing the amount of tooth on the wheel or changing the amount of starts on the pinion.
When used in combination with EP Equipment worms, EP Gear’s worm gears provide effective power transmitting in applications requiring high-ratio speed reduction in a limited space using right angle (90°), nonintersecting shafts. Also, they are the smoothest, quietest type of gearing when properly applied.

How do Worm Gear Sets 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 required and space is limited.