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As a leading manufacturer of precision transmission components, Hebei Speed Torque Transmission Technology Co., Ltd. proudly presents our Blue Aluminum Alloy Rigid Shaft Coupler Connector, engineered specifically for high-torque CNC applications. With over 7 years of industry experience and an ISO9001-certified quality management system, we ensure each coupler delivers zero-backlash performance, exceptional rigidity, and long-term durability. Our blue anodized aluminum alloy construction provides both aesthetic appeal and superior corrosion resistance, making this coupler ideal for demanding CNC machining centers, robotics, and automated assembly lines.
This rigid shaft coupler is designed to transmit torque precisely between two aligned shafts without any angular or parallel misalignment, offering a direct and efficient power transmission solution. Whether you are retrofitting a CNC router or building a custom linear motion system, our coupler ensures minimal vibration and maximum positioning accuracy. We understand the critical nature of CNC parts, which is why we offer customizable shaft diameters and lengths to match your exact specifications.
Backed by a factory spanning 3,000–5,000 square meters and a skilled team of 101–200 employees, we have the capacity to deliver consistent, high-quality products to markets across North America, South America, Europe, Asia, Africa, and Oceania. Our annual export value of US$5–10 million reflects the trust global customers place in our manufacturing capabilities.
Key Features & Benefits
High-Strength Aluminum Alloy: Lightweight yet robust, offering a high strength-to-weight ratio for reduced inertia and improved machine response.
Blue Anodized Surface: Provides excellent corrosion resistance and a distinctive appearance that resists wear in industrial environments.
Zero Backlash Design: Rigid clamping eliminates any play, ensuring precise positioning and repeatability in CNC operations.
High Torque Transmission: Capable of handling substantial torque loads without slippage or deformation, suitable for heavy-duty machining.
Customizable Dimensions: Available in a wide range of inner diameters (6mm–50mm) and lengths (20mm–100mm) to fit various shaft sizes.
Easy Installation: Clamp-style or set-screw options allow for quick and secure mounting without damaging shafts.
Precision Machined: Manufactured on advanced CNC lathes with tight tolerances to ensure concentricity and balance.
Technical Specifications
| Material | Aluminum Alloy (6061-T6 or equivalent) |
| Color | Blue (anodized) |
| Torque Range | 5 N·m to 120 N·m (depending on size) |
| Shaft Diameter Range | 6 mm – 50 mm (customizable upon request) |
| Length Range | 20 mm – 100 mm (customizable) |
| Maximum Speed | Up to 10,000 RPM (for smaller sizes) |
| Temperature Range | -40°C to +120°C |
| Surface Finish | Anodized (blue) |
| Mounting Type | Clamp with socket head cap screws or set screw (optional) |
Applications
CNC milling machines, lathes, and routers
Servo motor connections in automation equipment
Robotic arms and precise linear actuators
Packing machinery and printing presses
Medical imaging devices requiring high rigidity
Our rigid shaft coupler stands out due to its exceptional balance of lightweight design and torque capacity. Unlike flexible couplings, this rigid version provides a direct mechanical connection that eliminates any angular or parallel misalignment capability, making it ideal for applications where shaft alignment is already precise. The blue anodized finish not only adds a professional look but also protects against oxidation and wear in harsh workshop conditions.
We invite you to experience the reliability of Hebei Speed Torque Transmission Technology Co., Ltd. With our ISO9001-certified processes, you can expect consistent quality from batch to batch. Our skilled team provides responsive support for custom orders, ensuring that each coupler meets your exact requirements. Whether you need a standard size or a special configuration, we are ready to assist.
Frequently Asked Questions (FAQ)
Q: What is the difference between a rigid coupler and a flexible coupler?
A: A rigid coupler connects two shafts in perfect alignment with zero backlash, providing maximum torque transmission. Flexible couplers allow for slight misalignment but may introduce some play. Our rigid coupler is best for precision CNC applications where alignment is already set.Q: Can this coupler be used with stepper motors?
A: Yes, it works well with stepper motors as well as servo motors, provided the shaft diameters match. The high rigidity ensures accurate positioning without vibration.Q: How do I choose the correct size for my application?
A: Measure the diameter of both shafts and select a coupler with an inner diameter equal to your shaft size. Also consider the torque requirements: our couplers are rated for various torque levels based on size. Contact our sales team for assistance.Q: Is the blue anodized coating durable?
A: Yes, the anodized layer is hard, wear-resistant, and corrosion-resistant, making it suitable for both dry and lubricated environments.Q: Do you offer custom sizes or materials?
A: Absolutely. We can customize inner diameter, length, and even materials (e.g., stainless steel) upon request. Minimum order quantities may apply for custom versions.Q: What is the typical lead time for standard couplers?
A: For standard sizes, we can ship within 5–10 working days. Custom orders typically require 15–25 days depending on complexity.Q: Is this coupler RoHS compliant?
A: Yes, our aluminum alloy and anodizing process are RoHS compliant. If you need additional certifications, please let us know.Q: How do I install the coupler correctly?
A: Ensure shafts are clean and aligned. Loosen the screws, slide the coupler onto both shafts, tighten the screws evenly to the recommended torque using a hex key. Avoid over-tightening.
Hebei Speed Torque Transmission Technology Co., Ltd. – Your Trusted Partner in Precision Transmission
Since 2017, we have been dedicated to producing high-quality couplers, torque limiters, and transmission components. Our ISO9001 certification, combined with a 3,000–5,000 m² factory and a team of over 100 professionals, ensures that every product meets rigorous standards. We export to over 15 regions worldwide, with annual exports exceeding US$5 million. Choose our Blue Aluminum Alloy Rigid Shaft Coupler for reliable, high-performance CNC parts that keep your machinery running smoothly.
Contact us today for a quote or technical consultation. We look forward to partnering with you!
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