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Help CenterKeyless Locking Assembly Rigid Shaft Coupling for Industrial Drive
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Henan San Kuang Machinery Technology Co., Ltd. is proud to present our Keyless Locking Assembly Rigid Shaft Coupling, engineered specifically for demanding industrial drive applications. As a leading manufacturer with over 10 years of experience and a 10,000-30,000 square meter facility, we combine precision manufacturing with rigorous quality control to deliver couplings that eliminate keyway stress and provide zero-backlash torque transmission. Our product is designed to simplify installation, reduce maintenance, and extend the life of your machinery.
This coupling utilizes a keyless locking mechanism that securely clamps onto shafts without the need for keyways or set screws. The rigid body ensures precise alignment, making it ideal for applications where torsional stiffness and concentricity are critical. Available in a wide range of bore sizes and materials, it can be customized to meet your specific drive requirements.
Key Features & Technical Specifications
Keyless Design: Eliminates keyway stress concentrations, reducing shaft damage and improving reliability.
Zero Backlash: Rigid clamping ensures no lost motion, ideal for precise positioning and high-torque applications.
High Torque Capacity: Handles up to 5000 Nm (depending on size), suitable for heavy-duty industrial drives.
Easy Installation: Simple tightening of locking screws allows quick assembly and disassembly without special tools.
Durable Materials: Made from high-strength alloy steel or stainless steel with surface treatments for corrosion resistance.
Compact Design: Space-saving profile fits in tight shaft-to-shaft configurations.
Customizable: Bore sizes, outer diameters, and lengths available upon request to match your shafts.
| Parameter | Value |
|---|---|
| Bore Diameter (d1, d2) | 10 mm – 100 mm (custom up to 200 mm) |
| Outer Diameter (D) | 25 mm – 150 mm |
| Length (L) | 30 mm – 200 mm |
| Torque Range | 50 Nm – 5000 Nm |
| Max Speed | 10,000 rpm (depending on balance grade) |
| Material Options | 45# steel, 40Cr, stainless steel 304/316, or as per customer request |
| Surface Treatment | Black oxide, zinc plating, phosphating, or oiled |
Advantages for Your Application
Reduced Downtime: No keyway machining required – install directly on existing shafts.
Improved Safety: Eliminates the risk of keyway fracture or key dislodgement.
Higher Precision: Rigid connection ensures minimal angular and radial misalignment, perfect for servo motors and linear drives.
Cost-Effective: Lower initial cost compared to splined or tapered couplings, with long service life.
Versatile Use: Suitable for conveyors, packaging machines, mixers, pumps, compressors, and more.
Our coupling is manufactured under strict quality control systems compliant with ISO 9001, ISO 14000, and ISO 16949 standards, ensuring consistent performance and reliability. Each unit is tested for concentricity, torque holding, and surface finish before shipment.
Why Choose Henan San Kuang Machinery?
Established in 2014 with a factory size of 10,000-30,000 sqm.
Annual export value of US$2.5 – 5 million, serving markets across North America, Europe, Asia, Africa, and Oceania.
Team of 51-100 skilled employees dedicated to precision manufacturing and customer satisfaction.
Flexible shipping from major Chinese ports: Shanghai, Lianyungang, Qingdao, Tianjin.
We offer OEM/ODM services, and our products are backed by comprehensive after-sales support.
With our extensive experience and commitment to quality, we are confident that the Keyless Locking Assembly Rigid Shaft Coupling will exceed your expectations for performance and durability. Contact us today for a quote or to discuss your specific requirements. We provide samples, technical drawings, and fast delivery to help you optimize your industrial drive systems.
Frequently Asked Questions
Q: What is the main advantage of a keyless locking coupling over a traditional keyed coupling?
A: A keyless coupling eliminates keyway stress concentrations, which can lead to shaft fatigue and failure. It also provides zero-backlash torque transmission, easier installation, and allows for finer axial position adjustment.Q: Can this coupling be used for high-speed applications?
A: Yes, depending on the size and balance grade. Our standard models can handle speeds up to 10,000 rpm. For higher speeds, we offer dynamic balancing options upon request.Q: Is the coupling suitable for misaligned shafts?
A: This is a rigid coupling, designed for shafts that are already aligned. It is not intended to compensate for angular or parallel misalignment. For misaligned applications, we recommend flexible couplings.Q: What materials are available?
A: Standard material is high-strength alloy steel (45# or 40Cr). Stainless steel (304/316) is available for corrosive environments. Other materials can be customized based on your requirements.Q: How do I select the correct bore size?
A: Measure the shaft diameters of both driving and driven components. Our coupling can accommodate different bore sizes (d1 ≠ d2) if needed. Provide the exact dimensions, and we will manufacture accordingly.Q: Do you provide technical drawings or 3D models?
A: Yes, we can provide 2D CAD drawings and 3D step files upon request. Our engineering team can also assist with custom designs.Q: What is the typical lead time?
A: For standard sizes, lead time is 7-15 working days. Custom orders may require 15-25 working days, depending on complexity and quantity.Q: What certifications do you have?
A: Our factory is certified with ISO 9001, ISO 14000, ISO 16949, and other management systems. While the coupling itself may not carry a specific product certificate, our manufacturing process is strictly controlled to meet international quality standards.
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