Spline Shafts
Our spline shafts are expertly crafted for complex engagements, ensuring smooth transmission and high torque.




AmTech Manufacturing Solutions Guide Options
Our Handy solutions guide can help you determine what manufacturing process is right for your project or product.
Overview
Spline shafts supplier for OEMs
As spline shafting suppliers, AmTech OEM can manufacture a spline shaft with an outer diameter of 0.25″ to 18″, and a length of 0.50″ to 48″. Module measurements range from 0.5 module to 12 module.
Involute Splines
To assure that a spline achieves a proper fit, we request that gaging be included in the budget presented to us. We also recommend full complement gaging for involute splines, especially in difficult to reach splines and harder grades of material. The alternative requires measurement between wires, which frequently is impractical.
For small lot quantities and reverse-engineering solutions where gaging may not be practical, the mating part, either male or female, can be used as the standard. Otherwise, we would have to consider making both parts and researching and developing different possibilities.
Keyways
Shaping and broaching are two of the most efficient methods to produce keyways and internal splines. Maintaining the tight tolerances is one of the most critical factors when performing keyway shaping and broaching services. Our manufacturing facility is well-equipped to handle all types of customer specific requirements.
For shaping, we can cut a width from 1/16″ to 3/8″, with a depth of 0.032″ to 0.5″ and a length up to 6″. If the customer chooses our broaching service, we offer a width capacity from 0.063″ up to 1″, with a depth from 0.031″ to 0.5″ and a maximum length of 5″.
Straight-Sided and Internal Splines
Internal straight-sided spline shafts may require manufacturing either by broaching or by shaping. Broaching is generally the best solution, depending on the quantity and length/size of spline. Shaping can be more costly since it normally requires fabrication of a special cutter, or a single cutter to feed and index each slot.
Advantages of Spline Shafts
External straight-sided splines require a specially designed hob in order to produce the proper key and root width.
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
The AmTech Edge in Shaft Engineering
Renowned for its global certifications, vast experience, and a comprehensive international manufacturing network, AmTech is a frontrunner in precision shaft manufacturing.
Specialized Services
AmTech specializes in the production of various types of shafts, including custom, forged, gear, simple motor, spline, welded, and worm shafts, utilizing cutting-edge investment and die casting, as well as advanced machining and forging techniques.
Proven Industry Experience
Leveraging two decades of specialized experience in shaft production, AmTech guarantees the highest level of reliability and precision in OEM services, ensuring superior quality and craftsmanship in each shaft.
Global Manufacturing Reach
Effortlessly navigate supply chain challenges with AmTech’s robust and well-coordinated global manufacturing network.
Focused Expertise
AmTech is dedicated to supplying high-quality custom, forged, gear, simple motor, spline, welded, and worm shafts, meeting the specific requirements of original equipment manufacturer (OEM) clients.

Presentation
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FAQ's
Frequently Asked Questions
Can you make prototypes?
Absolutely. Amtech OEM offers comprehensive rapid prototyping services. Our capabilities extend to producing custom prototypes using advanced techniques like 3D printing and precision machining. This service is crucial for validating design and function before mass production. We work closely with our clients to ensure prototypes meet stringent specifications and industry standards.
Will you help us in the design stage?
We're dedicated to collaborating with you in the design phase, offering value-add engineering services for manufacturability, material selection, and technical feasibility. This ensures cost-effective, high-quality designs for your industry.
What is the lead time for samples?
We strive for prompt sample delivery. Our process includes a comprehensive review of design specifications, selection of optimal manufacturing methods (such as investment casting or precision machining), and quality control. This ensures that our samples promptly and professionally reflect the standards of full-scale manufacturing.
Will you inventory our parts?
Yes, inventory management is a critical component of our service offerings. We employ a Just-In-Time (JIT) delivery system to optimize supply chain efficiency. This approach reduces inventory costs for our clients and ensures timely delivery, aligning with lean manufacturing principles.
What is the turnaround time for quotation?
We typically provide a quotation within 7-10 business days, depending on the project's complexity. Upon receiving an initial inquiry, we respond within 24-48 hours to arrange a detailed discussion about the project requirements. This discussion helps us understand the technical details, volume, and specific needs of your project, allowing us to provide a precise and comprehensive quote.
What kind of quantities do you produce?
AmTech OEM excels in catering to diverse production volumes, from mid to high-volume manufacturing. Our processes prioritize flexibility, allowing us to adapt to varying demand levels while upholding high standards of quality and efficiency.
What kind of quality standards do you have at AmTech OEM?
Our commitment to quality is unwavering. IATF16949, QS9000, and ISO 9001 certified production facilities. Our Quality Department employs advanced technology and stringent processes to meet diverse and demanding industry requirements. Whether for large OEMs or family-owned businesses, our goal is to deliver exceptional product quality tailored to each client's specific needs.
Can you provide 3D printing samples?
Yes, we have invested in cutting-edge 3D printing technology to offer a wide range of sample production options. This capability allows us to provide rapid and detailed prototypes, aiding in design validation and iteration. We encourage inquiries about our 3D printing capabilities to explore how we can best meet your prototyping needs with our advanced technological resources.
Other Capabilities
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