HMC Gears is home to the most advanced Gear Cutting and Inspection machines in the world, making us capable of completing even the most challenging of projects.

Precision Custom Gears

HMC is a leading manufacturer of large gearing with special capabilities that allow us to have the most efficient gear cutting machines in the world.

CNC Machining

HMC’s key strengths are specialized custom machining or close tolerance tasks on large components. We are able to maintain the tightest tolerances on parts even when they exceed 20’ in diameter.


Large gear drives are HMC’s specialty as we have been rebuilding gearboxes for over 25 years.

Repair & Rebuild

The procedures and manufacturing processes HMC has developed over the years offer a complete reconditioned drive solution.

Field Service

HMC is able to provide help on any technical assistance for problems with gear drives, open gearing, troubleshooting, gear audits, failure analysis, or installation and alignment needs.


HMC offers a full in-house fabrication center complete with AWS-certified welders that can tackle your project requirements.

  • High Quality Materials

    Collage of Large Gears being manufactured
  • Five Generations of Family Ownership

    Old Headquarters Building
  • 135 Years of Combined Experience

    Group of HMC Engineers
  • Grounded in the Past. Working in the Present. Changing the Future.

    Aerial Photo of HMC Headquarters

HMC Gears
is World Class Gearing.

Our advanced technology in gear cutting, gear grinding and custom machining, results in longer lasting replacement parts and the highest quality components available anywhere in the world. Couple that with the fastest response and delivery times and with warranties unrivaled by any competitor, you can see how HMC is the right choice for our customers wherever they may be on this Planet.


We are proud to have many loyal customers from many different industries. HMC accomplished this by providing the HMC Difference in quick response, fast delivery, and advanced technology products whether they be new, rebuilt, or repaired.


HMC is the trusted source of precision Dragline and Shovel gearing and components in every region of the world where Surface Mining is performed.


Our Mill Stand Pinions, Mill Stand Reducer Gears, and Tilt Vessel Gearing operate flawlessly in many Steel and Aluminum Plants both here in the US and Abroad.


HMC has long been a predominant mill and rotary kiln gear supplier as a result of our track record with the development and manufacture of Large Critical Gears.


We provide large gears, enclosed drives, and other services to both the saltwater and freshwater commercial industries and to the US Navy.


HMC has manufactured large gears, pinions, and other components for many years for the defense industry and directly for the government.


We manufacture gearing and various components as well as provide service for end-users and OEM’s alike in sugar mills around the world.


HMC has become a bastille of support for one of the largest populations of coal-fired power plants lies within a 350-mile radius of HMC.

Made in America.

Founded in 1921, we take pride in the fact we are a 5th generation privately owned premier gear manufacturer. We manufacture parts to the highest quality available, with some of the most advanced machine tools in the world.

As the primary support manufacturer for the major mill suppliers in the steel and aluminum industry, HMC has built a reputation by providing the Highest Quality Gearing products on the market.

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