Google Icon

Precision Gear Cutting Services Near You

When your machinery demands exact specifications, Carnes-Miller Gear delivers precision gear cutting services that meet the highest industry standards. With over 50 years of experience and advanced hobbing, shaping, and grinding capabilities, we manufacture custom gears from 8mm to 500mm diameter with AGMA Class 10-13 ratings for aerospace, defense, medical, and industrial applications.

Precision gear cutting machinery manufacturing custom industrial gears

Our Precision Gear Cutting Services

Comprehensive gear manufacturing solutions utilizing hobbing, shaping, and grinding processes to deliver precision gears meeting your exact specifications.

Spur Gears Manufacturing

Precision spur gears manufactured via hobbing or shaping up to 20in diameter. Achieve AGMA 10 on shaped/hobbed and AGMA 13 on ground gears with face widths to 5 inches.

Helical Gears Manufacturing

Custom helical gears hobbed up to 8 inches diameter with helix angles to ±45 degrees. AGMA Class 10 non-heat-treated, Class 13 heat-treated with advanced profile grinding modifications.

Planetary Gears Manufacturing

Epicyclic gear systems including ring gears to 10-inch pitch diameter, sun and planet gears with face widths up to five inches for complex power transmission applications.

Worm Gears Manufacturing

Throated worm wheels up to 16 inches diameter hobbed in bronze or steel, with precision-ground hardened steel worms. Reverse engineering available from samples.

Splines Manufacturing

Internal and external splines manufactured via hobbing, shaping, or broaching. Complete tooling inventory for straight-sided splines with proper gaging verification for precise fit.

Gear Grinding Services

Profile tooth grinding up to 400mm diameter achieving AGMA Class 13 ratings. Custom lead, profile, and tip relief modifications with gear chart validation and nital-etch burn testing.

Gear cutting process showing manufacturing stages from blank to finished gear

Our Precision Gear Cutting Process

Consultation & Engineering Review

Our team reviews your specifications, drawings, and samples to determine optimal manufacturing processes. We assess part attributes, dimensional requirements, material selection, and tolerances to recommend hobbing, shaping, or grinding methods that ensure your gears meet exact performance criteria.

Gear Blank Preparation & Machining

Precision Tooth Cutting

Heat Treatment & Hardening

Final Grinding & Quality Verification

Trusted Since 1973

Success Stories

Delivering precision gear solutions to aerospace, defense, medical, and industrial customers for over 50 years.

"Carnes-Miller's spur gears manufacturing has been absolutely reliable. Their AGMA 13 rated ground gears deliver the smooth, quiet operation we needed for our aerospace components."

Dr. Patricia Chen

"We had obsolete helical gears that we couldn't source anywhere. CMG's reverse engineering capabilities saved our production line. They delivered exactly what we needed in three weeks."

Michael Rosinski

"Finding reliable precision gear cutting services locally was impossible until we found CMG. Their expertise and attention to tolerancing has transformed our production capabilities significantly."

Sarah Mitchell

"When our gears failed heat treat distortion checks, CMG salvaged them through grinding. Their nital-etch testing and AGMA 13 quality standards got us back on schedule immediately."

James Kowalski

"CMG's turn-key gear service with in-house grinding up to 400mm diameter and competitive pricing provided exceptional value. We cut our supplier costs by twenty percent while improving quality."

Robert Castellano

"We've trusted Carnes-Miller for planetary gear assemblies for over a decade. Their consistency, professionalism, and ability to meet our exacting medical device standards is unmatched."

Dr. Elizabeth Warren

"CMG's hobbing process for our helical gears achieves AGMA Class 13 ratings consistently. The crown and taper hobbing capabilities handle our complex helix angles with precision gear cutting excellence."

Thomas Whitmore

"As a competitor evaluating suppliers, CMG's fifty-year track record in precision gear cutting sets the industry standard. Their market positioning with full in-house capabilities is genuinely competitive."

Andrew Bergstrom

"Carnes-Miller's spur gears manufacturing has been absolutely reliable. Their AGMA 13 rated ground gears deliver the smooth, quiet operation we needed for our aerospace components."

Dr. Patricia Chen

"We had obsolete helical gears that we couldn't source anywhere. CMG's reverse engineering capabilities saved our production line. They delivered exactly what we needed in three weeks."

Michael Rosinski

"Finding reliable precision gear cutting services locally was impossible until we found CMG. Their expertise and attention to tolerancing has transformed our production capabilities significantly."

Sarah Mitchell

"When our gears failed heat treat distortion checks, CMG salvaged them through grinding. Their nital-etch testing and AGMA 13 quality standards got us back on schedule immediately."

James Kowalski

"CMG's turn-key gear service with in-house grinding up to 400mm diameter and competitive pricing provided exceptional value. We cut our supplier costs by twenty percent while improving quality."

Robert Castellano

"We've trusted Carnes-Miller for planetary gear assemblies for over a decade. Their consistency, professionalism, and ability to meet our exacting medical device standards is unmatched."

Dr. Elizabeth Warren

"CMG's hobbing process for our helical gears achieves AGMA Class 13 ratings consistently. The crown and taper hobbing capabilities handle our complex helix angles with precision gear cutting excellence."

Thomas Whitmore

"As a competitor evaluating suppliers, CMG's fifty-year track record in precision gear cutting sets the industry standard. Their market positioning with full in-house capabilities is genuinely competitive."

Andrew Bergstrom

"Carnes-Miller's spur gears manufacturing has been absolutely reliable. Their AGMA 13 rated ground gears deliver the smooth, quiet operation we needed for our aerospace components."

Dr. Patricia Chen

"We had obsolete helical gears that we couldn't source anywhere. CMG's reverse engineering capabilities saved our production line. They delivered exactly what we needed in three weeks."

Michael Rosinski

"Finding reliable precision gear cutting services locally was impossible until we found CMG. Their expertise and attention to tolerancing has transformed our production capabilities significantly."

Sarah Mitchell

"When our gears failed heat treat distortion checks, CMG salvaged them through grinding. Their nital-etch testing and AGMA 13 quality standards got us back on schedule immediately."

James Kowalski

"CMG's turn-key gear service with in-house grinding up to 400mm diameter and competitive pricing provided exceptional value. We cut our supplier costs by twenty percent while improving quality."

Robert Castellano

"We've trusted Carnes-Miller for planetary gear assemblies for over a decade. Their consistency, professionalism, and ability to meet our exacting medical device standards is unmatched."

Dr. Elizabeth Warren

"CMG's hobbing process for our helical gears achieves AGMA Class 13 ratings consistently. The crown and taper hobbing capabilities handle our complex helix angles with precision gear cutting excellence."

Thomas Whitmore

"As a competitor evaluating suppliers, CMG's fifty-year track record in precision gear cutting sets the industry standard. Their market positioning with full in-house capabilities is genuinely competitive."

Andrew Bergstrom
The CMG Advantage

Why Choose Carnes-Miller Gear?

Five decades of gear manufacturing expertise delivering precision, quality, and reliability.

50 Years Expertise

Since 1973, we've perfected gear cutting processes across aerospace, defense, medical, and industrial applications with proven solutions.

Complete In-House Control

Our 18,000 sq ft facility houses all capabilities—blanking, milling, cutting, grinding, and broaching—ensuring quality control, cost efficiency, and on-time delivery.

AGMA Class 13 Precision

Advanced grinding technology achieves superior AGMA Class 13 ratings on heat-treated gears with custom modifications validated by detailed gear charts.

Reverse Engineering Specialists

When OEM support disappears, we reverse engineer obsolete gears from samples, maintaining your equipment operation with precision replacements meeting original specifications.

Meet The CMG Team

Dedicated gear manufacturing professionals with decades of combined expertise.

Since our founding in 1973, Carnes-Miller Gear has built a legacy of precision gear manufacturing excellence from our 18,000-square-foot facility in Locust, NC. What began as a gear shaping and hobbing specialist has evolved into a comprehensive full-service job shop serving the most demanding sectors—aerospace, defense, medical, industrial, mining, transportation, construction, agricultural, and rail. Through five decades of economic challenges including energy crises, recessions, financial turmoil, and global pandemics, our commitment to reliability, expertise, and quality has never wavered. Our team brings extensive training in gear tooling, equipment operation, nomenclature, and tolerancing, allowing us to deliver custom solutions that meet exacting specifications while maintaining competitive pricing. We pride ourselves on being your trusted local source for precision gear manufacturing.

50+ YearsContinuous gear manufacturing excellence since 1973
18,000 sq ftDedicated facility with complete in-house capabilities
AGMA Class 13Highest precision ratings on ground gears

Frequently Asked Questions

What is the process of gear cutting?

Gear cutting involves removing material to form gear teeth using specialized processes. At CMG, we primarily use hobbing (a continuous cutting process with a rotating hob) and shaping (a reciprocating cutter method) depending on gear geometry, diameter, face width, and feature proximity. The process selection depends on part attributes like internal vs. external gears, cutter clearance requirements, and whether the gear is part of a shaft assembly.

What is the fastest method of gear cutting?

What quality standards can you achieve for precision gears?

What is the largest gear diameter you can manufacture?

Can you reverse engineer obsolete gears when OEM support is unavailable?

What materials do you work with for gear manufacturing?

Do you offer complete turn-key gear manufacturing or just tooth cutting?

What lead times should I expect for custom precision gears?

Need Specific Gear Cutting Guidance?

Our gear engineering team is ready to discuss your requirements and recommend the optimal manufacturing approach.

Precision Gear Cutting Service Areas

Serving manufacturers across North Carolina and beyond with precision gear cutting and comprehensive gear manufacturing services.

Locust, NC

Facility Location

Mon-Fri 8AM-3:30PM

Service Availability

Regional & National

Service Reach

Ready to Discuss Your Gear Manufacturing Project?

Contact us for a consultation on your precision gear cutting needs—from prototypes to production runs.

Quality & Reliability

Awards and Recognition

50 years in business milestone badge

50 Years in Business

Continuous gear manufacturing excellence since 1973

AGMA standards compliance certification badge

AGMA Standards Compliance

Achieving Class 10 and Class 13 precision ratings

Aerospace and defense qualified supplier badge

Aerospace & Defense Qualified

Trusted supplier for critical applications

Start Your Precision Gear Project Today

Share your specifications and our gear engineering team will provide expert recommendations and a detailed quote within 24-48 hours.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 704-888-4448 You can also send us a quick email at dan@cmgear.us