Spur Gears Manufacturing
Precision spur gears up to 20-inch diameter using hobbing or shaping processes. Achieve AGMA 10 on shaped/hobbed gears and AGMA 13 on ground gears with profile tooth grinding capabilities.
Carnes-Miller Gear delivers mission-critical aerospace gear manufacturing with AGMA 13 precision standards and full in-house capabilities. From spur and helical gears to planetary systems and splines, our 50+ years of expertise ensures every component meets the exacting tolerances required for aerospace applications. Our dedicated 18,000 sq ft facility in North Carolina combines advanced grinding, hobbing, and shaping technology with rigorous quality control to support defense contractors, OEMs, and aerospace manufacturers nationwide.

Complete gear manufacturing solutions from design through delivery, specializing in precision aerospace components with AGMA 13 quality standards.
Precision spur gears up to 20-inch diameter using hobbing or shaping processes. Achieve AGMA 10 on shaped/hobbed gears and AGMA 13 on ground gears with profile tooth grinding capabilities.
Advanced helical gear hobbing up to 8-inch diameter with helix angles to +/-45 degrees. Profile grinding enables AGMA Class 13 ratings with crown hobbing, taper hobbing, and custom modifications.
Complete planetary gear systems including ring gears up to 10-inch pitch diameter, with sun and planet gears manufactured to precise tolerances. Face widths accommodated up to five inches.
Internal and external splines using hobbing, shaping, and broaching techniques. Comprehensive tooling inventory for external straight-sided splines with proper gaging for involute spline precision.
Complete gear manufacturing from blank machining through final grinding. In-house capabilities handle gears up to 400mm diameter, delivering precision-engineered components ready for installation.
Advanced gear tooth grinding up to 400mm diameter achieving AGMA Class 13 ratings. Custom lead, profile, and tip relief modifications with nital-etch testing and heat treat distortion salvage capabilities.
When aerospace applications demand absolute precision, Carnes-Miller Gear delivers. Our comprehensive in-house capabilities—from gear blanking and milling to advanced grinding and broaching—ensure complete control over every production phase. We achieve AGMA 13 ratings on heat-treated gears through advanced profile grinding, enabling custom modifications for lead, profile, and tip relief. With 50+ years serving aerospace, defense, and medical sectors, our expertise extends to reverse engineering obsolete components and salvaging gears affected by heat treat distortion. Our 18,000 sq ft facility houses specialized equipment for spur, helical, planetary, and worm gears, plus internal and external splines, ensuring your critical aerospace components meet exacting tolerances every time.

Delivering precision gear solutions to aerospace, defense, and medical sectors since 1973.
Five decades of precision gear manufacturing expertise serving mission-critical aerospace applications.
Achieve superior accuracy with AGMA Class 13 ratings on ground gears, meeting the stringent tolerances required for aerospace and defense applications.
Our 18,000 sq ft facility houses all manufacturing processes—blanking, milling, grinding, hobbing, shaping, and broaching—ensuring quality control, cost-effectiveness, and on-time delivery.
When OEM support disappears, our team reverse-engineers obsolete gears from samples, maintaining your critical equipment with precision-matched replacement components.
Since 1973, we've navigated industry challenges while consistently delivering precision gears to aerospace, defense, medical, and industrial sectors with unwavering reliability.
Expert team with comprehensive aerospace gear manufacturing expertise since 1973.
Founded in 1973, Carnes-Miller Gear began with a focused mission: delivering precision gear shaping and hobbing to manufacturing industries. Over five decades, we've evolved into a full-service job shop, expanding our capabilities to include gear blanking, milling, grinding, and broaching within our dedicated facility. We've weathered every major economic challenge—from the energy crisis of the 1970s through Covid-19—by maintaining unwavering commitment to quality, expertise, and customer satisfaction. Today, operating from our 18,000-square-foot facility in Locust, NC, we serve aerospace, defense, medical, industrial, mining, transportation, construction, agricultural, and rail sectors. Our team's extensive training in gear tooling, equipment, nomenclature, and tolerancing ensures we deliver precision components that meet the most demanding specifications, while our comprehensive in-house capabilities provide cost-effectiveness and reliable delivery timelines.
We achieve AGMA 2000 Class 10 ratings on non-heat-treated gears and AGMA Class 13 ratings on heat-treated gears through advanced profile grinding. Our precision capabilities include custom modifications for lead, profile, and tip relief per customer specifications, with gear charts validating these modifications.
Our engineering team is ready to discuss your precision gear needs and provide expert guidance.
Highest precision standards for aerospace gears
Five decades of precision manufacturing
Trusted by defense and aerospace sectors
Contact our engineering team for precision gear solutions. We'll provide expert consultation and detailed quotes for your specific aerospace manufacturing needs.
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
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