Planetary Gears
Ring Gears
Custom Gears
Precision Gear Manufacturing Services
Precision Machining Gear Manufacturing Services
AGMA 13 certified

AGMA 13 Certification

AGMA 10 certified

AGMA 10 Certification

What is a Planetary Gear? Complete Engineering Guide

Planetary gears, also known as epicyclic or sun-and-planet gears, are precision-engineered gear systems used in industrial transmission applications. Carnes-Miller Gear manufactures planetary gears including ring gears up to 10 inches pitch diameter, sun gears, and planet gears with face widths up to 5 inches, delivering AGMA 10-13 quality ratings for demanding mechanical applications.

Our Range of Products

Planetary Gears

Planetary Gears

  • Ring gears up to 10" pitch diameter
  • Face width capacity up to 5 inches
  • Sun & planet gears for epicyclic systems
Ring Gears

Ring Gears

  • AGMA 13 quality on ground gears
  • Turn-key manufacturing capabilities
  • 10" pitch diameter ring gear capacity
Custom Gears

Custom Gears

  • 50 years manufacturing experience
  • Reverse engineering for obsolete parts
  • Lead, profile & tip relief modifications
Precision Gear Manufacturing Services

Precision Gear Manufacturing Services

  • 400mm diameter grinding capacity
  • AGMA 10 shaped & hobbed gears
  • In-house nital-etch burn testing
Precision Machining Gear Manufacturing Services

Precision Machining Gear Manufacturing Services

  • 18,000 sq ft dedicated facility
  • Full blanking to finished gear service
  • Grinding up to 400mm diameter

Frequently Asked Questions

What is a planetary gear used for?

Planetary gears are used in industrial transmission systems, epicyclic gear assemblies, mining equipment, transportation systems, construction machinery, agricultural equipment, and rail applications requiring compact high-torque power transmission.

Why is it called a planetary gear?

What quality standards do your planetary gears meet?

What is the maximum size planetary gear you can manufacture?

Can you provide custom modifications to planetary gears?

What manufacturing processes do you use for planetary gears?

Do you offer turn-key planetary gear manufacturing?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Industrial Manufacturing

Industrial Manufacturing

Precision planetary gears for industrial machinery and equipment requiring reliable power transmission and high-torque applications.

Mining

Mining

Heavy-duty ring gears and planetary gear assemblies engineered for mining equipment operating in demanding environments.

Transportation

Transportation

Custom planetary gears for transportation systems and rail applications demanding precision and reliability.

Construction & Agriculture

Construction & Agriculture

Robust planetary gear systems for construction equipment and agricultural machinery requiring high torque capacity.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Industrial Manufacturers Choose Carnes-Miller Gear

50 Years of Gear Manufacturing Excellence

Since 1973, we've delivered precision planetary gears with unmatched expertise in epicyclic gear systems, ring gears, sun gears, and planet gears for demanding industrial applications across multiple sectors.

Complete In-House Manufacturing Control

Full-service job shop with comprehensive capabilities for gear blanking, milling, grinding, and broaching ensures precise control over production, cost-effectiveness, and reliable on-time delivery.

Superior AGMA Quality Standards

AGMA 10 quality rating on shaped and hobbed gears, AGMA 13 on ground gears with validation through Gear Charts. In-house nital-etch testing ensures grinding burn-free components for high-performance applications.

Request a Quote for Custom Planetary Gear Manufacturing

Submit your specifications and one of our gear engineering experts will respond within 24 hours with detailed pricing, lead times, and technical recommendations.

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