Spline Shafts

AmTech International specializes in custom spline shaft manufacturing for OEMs and industrial applications. Our spline shafts are engineered for complex engagements, delivering smooth torque transmission, high strength, and reliable performance in demanding environments.
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Overview

Spline shafts supplier for OEMs

AmTech International is a trusted supplier of custom spline shafts for OEMs and industrial applications. We manufacture spline shafts with outer diameters from 0.25″ to 18″ and lengths from 0.50″ to 48″, with module measurements ranging from 0.5 to 12.

Our advanced capabilities allow us to deliver precision-engineered shafts for axles, power transmission, gearboxes, and a wide range of motion control applications.

Advanced Manufacturing Capabilities

AmTech International is a trusted supplier of custom spline shafts for OEMs and industrial applications. We manufacture spline shafts with outer diameters from 0.25″ to 18″ and lengths from 0.50″ to 48″, with module measurements ranging from 0.5 to 12.

Involute Splines & Quality Assurance

To guarantee a perfect fit for involute splines, we recommend including gaging in your project budget. Full complement gaging is especially important for complex or hard-to-reach splines and harder materials. For small batch quantities or reverse-engineered parts where gaging may not be practical, we can use your mating part as the standard, or develop both male and female components as needed.

Keyways, Shaping & Broaching

We offer both shaping and broaching for producing keyways and internal splines, maintaining tight tolerances throughout the process.

  • Shaping: Widths from 1/16″ to 3/8″, depths from 0.032″ to 0.5″, lengths up to 6″
  • Broaching: Widths from 0.063″ to 1″, depths from 0.031″ to 0.5″, lengths up to 5″

Our facility is fully equipped to handle customer-specific requirements for both keyways and splines.

Internal & Straight-Sided Splines

For internal straight-sided splines, we use broaching or shaping depending on the quantity, size, and length required. Broaching is typically more efficient for larger runs, while shaping may be used for specialized or lower-volume needs

Advantages of Spline Shafts

  • Precision power transmission for automotive, industrial, and motion control systems
  • Custom profiles including involute, straight-sided, and internal splines
  • Consistent quality through advanced manufacturing and rigorous inspection

Materials

  • Acetal
  • Delrin
  • Alloy Steel
  • Plastic
  • Aluminum
  • Brass
  • Bronze
  • PEEK
  • Carbon Steel
  • FLEXOR
  • Nylon
  • Stainless Steel

Applications

  • Automotive
  • Construction
  • Defense
  • Electrical
  • Electronics
  • Heavy Equipment
  • Industrial Machinery
  • Marine
  • Medical Devices
  • Off-Highway
  • Pneumatics
  • Robotics

Services

  • Balancing
  • Broaching
  • Carburizing
  • CNC Machining
  • Forging
  • Grinding
  • Gun Drilling
  • Heat Treating
  • Honing
  • Keyways
  • Shaping
  • Spline Forming
  • Threading

Masterful Shaft Production

Precision Shaft Manufacturing Solutions

AmTech International is a leader in producing high-quality, custom-engineered shafts for a wide range of industries. With globally recognized certifications, decades of experience, and a robust international manufacturing network, we deliver reliable shaft solutions that meet the highest standards for performance and compliance.a

Comprehensive Shaft Capabilities

We manufacture a full spectrum of shafts—including custom, forged, gear, motor, spline, welded, and worm shafts—using advanced forging, investment casting, die casting, and precision machining technologies. Our flexible production processes support both prototyping and high-volume manufacturing.

Industry-Leading Experience & Quality

With over 25 years of specialized shaft manufacturing expertise, AmTech guarantees precision, durability, and consistent quality in every project. Our ISO-certified processes and rigorous quality control ensure each shaft meets your exact specifications.

Global Supply Chain & Reliable Delivery

Our well-coordinated global manufacturing and logistics network enables us to navigate supply chain challenges and deliver components on time, wherever your operations are located. We support OEMs and industrial customers worldwide with dependable, scalable solutions.

Custom Engineering & Technical Support

AmTech’s engineering team collaborates closely with clients to design and optimize shafts for specific applications. From material selection to surface treatments, we provide expert guidance and responsive support throughout the entire project lifecycle.

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FAQ's

Frequently Asked Questions

What sizes of spline shafts can AmTech manufacture?

We produce spline shafts with diameters from 0.25″ to 18″ and lengths from 0.50″ to 48″, tailored to your application needs.

What types of splines do you offer?

We manufacture involute, straight-sided, serrated, helical, and custom spline profiles to meet your design requirements.

Can you provide prototypes and support during the design phase?

Yes, we offer rapid prototyping and engineering support, including reverse engineering and design validation.

What materials are available for spline shafts?

We work with carbon steel, alloy steel, stainless steel, bronze, aluminum, and other specialty materials for optimal performance8.

What industries use your spline shafts?

Our spline shafts are used in automotive, industrial, robotics, motion control, and heavy machinery sectors.

How do you ensure quality and precision?

All products undergo rigorous inspection and testing in our certified facilities to meet tight tolerances and customer specifications.

Do you offer inventory management and JIT delivery?

Yes, our JIT warehouse and inventory programs help reduce lead times and storage costs.

How do I request a quote for spline shafts?

Simply contact us or fill out our Request a Quote form with your specifications for a detailed proposal.

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