
Ring Gears
- 10-inch pitch diameter capacity
- AGMA 10-13 quality ratings
- 5-inch face width capability










ISO 9001:2015
Precision-engineered ring gears for planetary gear systems and industrial machinery. Manufactured up to 10-inch pitch diameter with AGMA 10-13 quality ratings through hobbing, shaping, and grinding processes. Backed by 50 years of manufacturing expertise serving mining, transportation, construction, agricultural, and rail sectors with turn-key capabilities and custom engineering support.
Talk to our experts for custom solutions and tailored guidance.
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We manufacture ring gears up to 10 inches in pitch diameter for planetary gear systems with face width capacity up to 5 inches.
Talk to our experts for custom solutions and tailored guidance.

Heavy-duty ring gears engineered for mining equipment requiring exceptional durability and reliability in harsh conditions.

Precision ring gears for transportation applications ensuring smooth operation and longevity in rail and transit systems.

High-performance ring gears designed for construction machinery demanding reliable power transmission under heavy loads.

Durable ring gears for agricultural equipment providing consistent performance across seasonal farming operations.
Talk to our experts for custom solutions and tailored guidance.
Since 1973, we've delivered precision gear manufacturing with extensive expertise in tooling, equipment, and tolerancing across aerospace, defense, medical, and industrial sectors.
Full-service job shop with comprehensive capabilities for gear blanking, milling, grinding, and broaching ensures precise control over production, cost-effectiveness, and timely delivery.
AGMA 10 rating on shaped and hobbed gears, AGMA 13 on ground gears. Superior surface finish and exacting standards for high-performance applications requiring reliability and longevity.
Connect with our gear manufacturing experts. We'll review your specifications and provide detailed technical guidance for your planetary gear system requirements.
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