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Help CenterAluminum Alloy Figure-8 Flexible Shaft Coupling Anti Vibration 3D Printer Motor Coupler
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Welcome to Hebei Speed Torque Transmission Technology Co., Ltd. – a trusted manufacturer of precision transmission components since 2017. Our Aluminum Alloy Figure-8 Flexible Shaft Coupling is specifically engineered for 3D printer motors and other precision motion control systems, offering exceptional anti-vibration performance and reliable torque transmission. This coupling combines high-grade aluminum alloy construction with an innovative figure-8 slit design, effectively absorbing misalignment and reducing resonant vibrations that can compromise print quality. Whether you are upgrading your existing printer or building a new motion system, this coupler provides a robust, lightweight solution that enhances accuracy and extends equipment life.
Manufactured in our 3,000-5,000 sqm facility with ISO9001 certified processes, every coupling undergoes strict quality checks. With an annual export value of US$5-10 million and a team of 101-200 skilled professionals, we deliver consistent products to markets across North America, Europe, Asia, and beyond. Read on to discover why our Figure-8 flexible coupling is the preferred choice for 3D printer enthusiasts and industrial automation engineers.
Key Features & Benefits
- Aluminum Alloy Construction – Lightweight yet strong (T6 heat-treated), ensuring minimal rotational inertia and long service life.
- Figure-8 Slit Design – Provides high flexibility, compensating for angular, parallel, and axial misalignments while dampening vibrations.
- Anti-Vibration Performance – Reduces noise and resonance, critical for high-precision 3D printing and CNC applications.
- Zero Backlash – Helical cut pattern ensures constant velocity transmission without play, improving positioning accuracy.
- Easy Installation – Clamp-style hubs with standard set screws allow quick mounting on stepper motors and lead screws.
- Customizable Dimensions – Bore diameters and overall length can be tailored to your specific shaft sizes and space constraints.
- Corrosion Resistant – Anodized surface finish protects against oxidation, suitable for various environments.
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Aluminum Alloy 6061-T6 |
| Coupling Type | Figure-8 (Helical Slit) Flexible |
| Available Bore Diameters | 4mm, 5mm, 6mm, 8mm, 10mm (custom sizes available upon request) |
| Overall Length | 20mm – 40mm (standard), customizable |
| Outer Diameter | 15mm – 30mm |
| Torque Capacity | 0.5 – 5 N·m (depending on size) |
| Maximum Speed | 6000 rpm |
| Misalignment Compensation | Angular: ≤ 3°, Parallel: ≤ 0.5mm, Axial: ≤ 1mm |
| Finish | Anodized (silver or black optional) |
| Certification | ISO9001:2015 |
Why Choose Our Aluminum Alloy Figure-8 Coupling?
- Enhanced Print Quality – By isolating motor vibrations, this coupling significantly reduces ghosting and ringing artifacts in 3D printed parts.
- Durability – The heat-treated aluminum alloy withstands repetitive stress and temperature changes without deformation.
- Versatility – Ideal for NEMA 17, NEMA 23 stepper motors, lead screws, and encoder shafts in automation equipment.
- Cost-Effective – Compared to bellows or disc couplings, the figure-8 design offers excellent flexibility at a lower price point.
- Global Supply – We ship from major Chinese ports (Shanghai, Tianjin, Qingdao) with reliable logistics to over 20 countries.
Trust the Numbers: Since 2017, Hebei Speed Torque has exported US$5-10 million worth of transmission components annually, serving customers in North America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our factory spans 3,000-5,000 square meters with over 100 dedicated employees, ensuring consistent quality and on-time delivery. Each coupling is produced under ISO9001 certified quality management, giving you peace of mind.
Whether you need a standard bore size or a custom dimension, our engineering team can adjust the design to meet your exact requirements. We also offer prototyping services for OEM projects. Contact us today to request a quote or sample – let's improve your motion system together.
Frequently Asked Questions
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Q: Is this coupling suitable for high-torque applications like CNC milling?
A: Yes, depending on size. Standard models handle up to 5 N·m, which covers most 3D printers and light CNC routers. For higher torque, we can recommend larger diameters or alternative designs. -
Q: Can I use this coupler with different shaft sizes on each side?
A: Absolutely. We offer custom bore combinations, e.g., 5mm on one end and 8mm on the other. Please specify when ordering. -
Q: How does the figure-8 design compare to a solid coupler?
A: The figure-8 slit provides flexibility to absorb misalignment and vibration, while a solid coupler transmits all vibrations and may cause premature wear. Our design prolongs motor and lead screw life. -
Q: What is the recommended installation torque for the set screws?
A: Typically 0.5–1 N·m, depending on screw size. Over-tightening may distort the hub. Always check for secure fit without stripping. -
Q: Do you offer black anodized or other colors?
A: Yes, black anodized is available as an option. We can also match custom colors for larger volumes. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 10 pieces. For custom bore/length, MOQ may be 100 pieces. Samples are available for testing. -
Q: How long does shipping take to the United States?
A: By air freight, typically 5–7 working days. By sea, 25–35 days. We have reliable partners in all major markets. -
Q: Do you provide technical drawings or 3D models?
A: Yes, upon request we can share CAD files for your integration. Contact our sales team for support.
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