Splines
External Splines
Custom Gears
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Turn-Key Gears
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AGMA Quality Standards certified

AGMA Quality Standards

Custom Spline Gears: Internal, External & Precision Designs

Custom spline gears engineered for precision power transmission across industrial applications. Carnes-Miller Gear manufactures both internal and external splines using advanced hobbing, shaping, and broaching techniques. Our comprehensive spline solutions include involute and straight-sided designs, ensuring exact torque transfer for mechanical systems. With 50 years of manufacturing excellence and extensive tooling inventory, we deliver quality splines with proper gaging and verification for demanding applications.

Our Range of Products

Splines

Splines

  • Internal & external spline options
  • Precision hobbing & broaching
  • Small lot quantity solutions
External Splines

External Splines

  • AGMA 10-13 quality rating
  • Comprehensive tooling inventory
  • 50 years manufacturing experience
Custom Gears

Custom Gears

  • Turn-key blank & shaft machining
  • Reverse engineering services
  • AGMA 13 ground gear quality
Precision Gear Manufacturing Services

Precision Gear Manufacturing Services

  • Full-service job shop capabilities
  • Up to 400mm grinding capacity
  • Turn-key manufacturing service
Precision Machining Gear Manufacturing Services

Precision Machining Gear Manufacturing Services

  • 50 years of gear innovation
  • 18,000 sq ft dedicated facility
  • Advanced grinding technology
Turn-Key Gears

Turn-Key Gears

  • Complete gear blank machining
  • 50 years proven experience
  • Multi-sector expertise

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Frequently Asked Questions

What is a spline in gears?

A spline is a series of ridges or teeth on a shaft or hub that meshes with corresponding grooves to transmit torque while allowing axial movement.

What is the purpose of a spline?

What is the difference between involute and straight-sided splines?

What manufacturing processes are used for internal splines?

What quality standards do your spline gears meet?

Can you manufacture custom splines in small quantities?

Do you offer reverse engineering for obsolete spline components?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Industrial Machinery

Industrial Machinery

Precision spline gears for power transmission systems requiring exact torque transfer in manufacturing equipment and processing machinery.

Mining Equipment

Mining Equipment

Heavy-duty internal and external splines engineered for demanding mining operations requiring reliable shaft-to-hub connections.

Transportation & Rail

Transportation & Rail

High-precision spline systems for transportation machinery and rail applications requiring consistent torque transmission under variable loads.

Aerospace & Defense

Aerospace & Defense

AGMA 13 precision-ground splines for aerospace and defense applications demanding exacting tolerances and superior surface finish.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Industrial Manufacturers Choose Carnes-Miller Gear

50 Years of Precision Engineering

Since 1973, we've delivered AGMA-rated spline gears with comprehensive in-house capabilities ensuring precise control over quality, cost, and delivery timelines.

Complete Tooling Inventory

Extensive inventory of specialized tooling for both involute and straight-sided splines enables cost-effective production for small lots and custom requirements.

Full-Service Manufacturing

From initial design through finished splines, our 18,000-square-foot facility provides hobbing, shaping, broaching, and precision gaging under one roof.

Request a Quote for Custom Spline Gears Today

Connect with our spline gear experts for technical consultation. Expect a detailed response within 24 hours with pricing, specifications, and delivery timelines.

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