Spline Shafts




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Overview
Spline shafts supplier for OEMs
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
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
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
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?
What types of splines do you offer?
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?
What industries use your spline shafts?
How do you ensure quality and precision?
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.
Other Capabilities
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