Complete Machine Shop

We're industrial gearbox specialists!

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Full service machine shop on-premises.

At QRS, our ONLY business is fast, dependable gearbox repair and rebuilding. Perhaps that’s the reason why so many large and small manufacturers, steel and paper mills, utility power plants, oil refineries, chemical processing facilities, and other industrial plants from around the world that depend on speed reducers and increasers for the operation of their machinery rely on QRS.

Our highly skilled technicians assisted by computer-aided engineering will analyze and repair your gearbox quickly and efficiently, so downtime is kept to an absolute minimum.

Circle Gear and Machine CompanyIn addition, with our on-premises affiliate company, Circle Gear, QRS offers complete machine shop capabilities, including engineering and reverse engineering, fabricating and welding, as well as breakdown service. This enables us to fabricate any gear or component, including casings; if a suitable OEM replacement part is no longer available or is not stocked by the manufacturer. Complete control of all operations in production enables us to offer you much faster and more efficient turnaround on gearbox projects than smaller machine shops that are reliant on external companies.

Machining Gears

For more information, call Patrick McKernin at 708-354-8080 or email him at

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CNC Machining

Machine Shop

Deburring Machine