Prototype Gears | Forged Gears | Face Gears

From Modest Beginnings to Ambitious Goals

Our history spans nearly 50 years and over that time we have evolved from a small family-owned business into a multi-million dollar company and a core supplier of precision gears, shafts, and related assemblies to many global OEMs.

Located minutes east of St. Paul, Minnesota in Hudson, Wisconsin, United Gear & Assembly is now part of a family of companies under parent company United Stars, Inc. To expand into the emerging Asian Market and secure ready access to Pacific Rim opportunities, we have also opened an office in Shanghai, China.

Engineering-Oriented & Quality Driven

Our quality control process folds into our manufacturing process to create a unified and integrated system. United Gear and Assembly is ISO/TS16949 registered, assuring consistency of product and quality of performance for our customers.

We are proud members of the American Gear Manufacturer’s Association (AGMA) and the Automotive Industry Action Group (AIAG)

Prototype Gears

Our skilled staff is experienced in working with customers in the development of prototype gears in the most cost effective methods. We can work with your drawings to create a finished, working single prototype or a greater quantity up to 250 of gear prototypes needed for you application.

  • Low Volume:
  • 1 – 250
  • Prototypes & Service Parts
  • Mid Volume:
  • 250 – 5,000
  • Cellular & Families of Parts
  • High Volume:
  • 5,000 +
  • Dedicated Capacity


Customer Satisfaction Survey