Man standing next to large pinion on machine

Need a pinion fast?

Let us save the day! We routinely manufacture pinions on a rush basis. HMC can deliver in days not weeks.
3D render and blueprint

No Drawings? No Problem!

The engineers at HMC are experts at reverse engineering large gearing and related components.
Men Installing Large Gear

Installation and Support

We offer a wide range of installation and related support services including Installation and Installation Supervision.

Double Helical Gearing

The best double helical gearing is made at HMC. We can manufacture up to 8 meters in diameter with on-board inspection of lead, pitch, and profile.
3D Render of Gears

Save time and money with pre-assembled components.

Save time and money by letting us pre-assemble your components. For example, drop-in pinion assemblies with couplings, bearings, etc... This allows for a much more efficient installation process.
Gearbox being rebuilt

Gearbox Rebuilds

Rebuilding large gear drives is one of our specialties. We have been rebuilding gearboxes for many industries for a very long time.
Classroom of people learning about gears

Gear Workshops

The Gear Workshop is a customizable presentation and training program that can be given at your site, at HMC, or in a webinar.
Large Gear being repaired in shop

Project: Cement Gear Repair

HMC was recently asked to perform some DTC audits on a cement customer’s gears. During this inspection, a large crack was discovered in one of the gears.
Outside of Fabrication chamber

HMC was just featured in the latest issue of Liebherr magazine.

A visit by Liebherr to the HMC Gears plant in Indiana kicked off an extensive project which resulted in the creation of a unique solution for exceptional demands.
Gear on CNC machine

HMC Manufactures Massive Gear Set for the Army Corps of Engineers

When installed, it will produce electricity for the Ozark Hydroelectric Power Plant in Ozark, Arkansas. The gear and shaft assembly weigh roughly 125,000lbs and consists of a 174" diameter low speed gear and a 143" long low speed shaft. We…
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