Spur Gear Inspection
Complete dimensional verification for shaped and hobbed spur gears up to 20 inches diameter, ensuring AGMA 10-13 compliance with profile, pitch, and runout measurements.
Ensure optimal performance and longevity with Carnes-Miller Gear's comprehensive inspection services for precision gears and splines. Utilizing advanced measurement technology and 50+ years of expertise, we verify dimensional accuracy, surface finish quality, and compliance with AGMA standards. Our meticulous inspection processes detect manufacturing defects, heat treat distortion, and wear patterns before they compromise your critical machinery.

Comprehensive quality assurance for gears and splines across all manufacturing stages and applications.
Complete dimensional verification for shaped and hobbed spur gears up to 20 inches diameter, ensuring AGMA 10-13 compliance with profile, pitch, and runout measurements.
Specialized inspection for helical gears up to 8 inches diameter, verifying helix angles, lead accuracy, profile modifications, and surface finish to AGMA Class 10-13 standards.
Precision measurement of internal and external involute and straight-sided splines, including pitch diameter, tooth thickness, form diameter, and proper fit verification.
Detailed inspection of worm wheels and worms, verifying throat diameter, lead accuracy, surface finish, and proper mating engagement for smooth operation.
In-house nital-etch testing and dimensional verification to identify grinding burns, heat treat distortion, and salvageability of out-of-spec gears.
Complete dimensional documentation and analysis of sample gears or splines to create manufacturing specifications when OEM data is unavailable.

We begin by reviewing your specifications, drawings, and quality requirements. Our team evaluates the gear or spline type, applicable AGMA standards, and critical dimensions to establish a comprehensive inspection plan tailored to your application's performance demands.
50+ years of delivering precision inspection services to aerospace, defense, medical, and industrial sectors.
Half a century of precision measurement expertise you can trust.
Since 1973, we've refined inspection methodologies across diverse industries including aerospace, defense, and medical sectors.
State-of-the-art equipment and calibrated tooling ensure AGMA Class 10-13 verification with complete dimensional traceability and accuracy.
Comprehensive capabilities including nital-etch testing for grinding burns and metallurgical analysis, all within our 18,000-square-foot facility.
Comprehensive reports with gear charts, measurement data, and clear recommendations that provide complete transparency and compliance verification.
Expert precision manufacturing professionals since 1973
Since 1973, Carnes-Miller Gear has built a reputation on precision, reliability, and deep technical expertise in gear manufacturing and inspection. Founded during a pivotal era in American manufacturing, CMG has weathered economic storms—from the energy crisis of the 1970s through Covid-19—by staying committed to quality and customer satisfaction. Our team brings decades of specialized knowledge in gear tooling, equipment, nomenclature, and tolerancing, serving critical sectors including aerospace, defense, and medical industries. Operating from our dedicated 18,000-square-foot facility in Locust, NC, we've evolved from a gear shaping and hobbing specialist into a full-service precision manufacturing partner. Our inspection services reflect this heritage: meticulous attention to detail, comprehensive in-house capabilities, and an unwavering commitment to helping customers achieve optimal gear performance and reliability.
Gear inspection involves systematic dimensional measurement and verification of gear teeth, including tooth profile, pitch diameter, runout, concentricity, and surface finish. Using calibrated precision equipment, inspectors measure these parameters and compare them against specifications and AGMA quality standards. The process includes visual examination, dimensional gauging, surface quality analysis, and often metallurgical testing like nital-etch for heat treat verification. Comprehensive reports document all findings and verify compliance with specified tolerances.
Our precision measurement specialists are ready to discuss your inspection requirements and quality assurance needs.
Verified capability for Class 10-13 inspection
Five decades of precision manufacturing leadership
Traceable precision measurement instruments
Submit your specifications and inspection requirements for a detailed quote. Our team will review your needs and provide a comprehensive proposal with turnaround time and pricing.
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