Precision Worm Gear Sets

Worms & Worm Wheels

PIC Design manufactures worm gear sets, which are comprised of a worm and worm wheel, for use in a variety of industries including aerospace and military instrumentation, medical, dental, oil and gas exploration, robotics, optical and industrial controls. Our precision worm gear sets can be manufactured to meet the latest AGMA specifications per AGMA 390.03.

Worms & Worm Wheel Types

We offer an extensive selection of precision worm gear set options including:

  • Right Hand Worm and Worm Wheels (Left hand available on request)
  • Anti-Backlash Worm Wheels
  • Pin Hub and Split Hub Worm Wheels

PIC's Worms & Worm Wheels Features 

We offer many standard sizes and have the design expertise to manufacture custom worm wheels to print. Both our standard and custom worm wheels are available a variety of pitches, diameters, starts and ratios for you to choose from:

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  • Pitch: 48 and 64
  • Ratios available: 7.5:1 to 360:1
  • Worm Starts: 1, 2, 4
  • Wheel PD: 5/8’’ to 5 5/8’’
  • Bores: 1/8’’ to 1/4’’
  • Standard Materials offered: Worms – 303 Stainless Steel; Worm Wheels – Bronze

Customizable Worms & Worm Wheels 

PIC can customize worm and worm wheel sets to provide the following:

  • Non-Catalog Pressure Angles
  • Non-Catalog Pitches (DP and Module)
  • Non-Standard Materials
  • Different Ratios/# of starts
  • Heat-Treated Worms and Worm Gears
  • Modified Bores Sectoring
  • Face- and Cross-Holes
  • Milled Features
  • Assemblies (Cluster Gears)

When it comes to your gear needs, work with the worm gear set manufacturer that has over 65 years of experience: PIC Design.



Browse Our Worms & Worm Wheels

What are Worm Gear Sets?

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

How do Worm Gear Sets Transmit Motion?

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 set can be altered by changing the number of teeth on the wheel or changing the number of starts on the pinion.

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Our goal at PIC is to provide exceptional customer service. We can assist you online, or you may reach us by email or phone. Our experienced customer service representatives can provide answers to: placing an order, requesting a quote, price and delivery, order status, and product cross references.

Contact us today and allow PIC to Keep You on Target!

  • 8:00 AM - 6:00 PM (ET), Mon-Thurs
    8:00 AM - 5:00 PM (ET), Fri
  • 86 Benson Rd., Middlebury,
    CT 06762
  • 203-758-8272
    +1 800-243-6125
  • 203-758-8271