DW Aluminium Alloy Triple Diaphragm Clamp Coupling – Single & Double Flexible Coupling for Servo Motor & Encoder
Factory Direct from Guangdong, China | High-Strength Aluminium Alloy | 304 Stainless Steel Triple Diaphragm | H7 Precision Bore | Clamp Type | Zero Backlash | Low Inertia | ISO Certified | Custom Bores & Keyways
Product Overview
The DW Aluminium Alloy Triple Diaphragm Clamp Coupling from Apexcoupling is a high-precision flexible shaft coupling engineered for accurate torque transmission, zero backlash, and long service life in demanding motion control applications. Manufactured in Dongguan, Guangdong, China, this coupling is available in single and double configurations and is specifically designed for servo motors, stepper motors, encoders, and other precision drive systems.
The coupling features high-strength aluminium alloy hubs with an extended design that effectively compensates for radial, angular, and axial misalignments. The triple 304 stainless steel diaphragms (imported elastic stainless steel) provide high elasticity, high torque capacity, and excellent fatigue resistance. The clamp-type (split-hub) mounting with clamping screws ensures a zero-backlash, gap-free shaft connection, making it ideal for forward and reverse rotation.
With an H7 precision bore, the DW coupling delivers high concentricity and powerful locking. Its low inertia design is suitable for high-speed operation, while the aluminium alloy construction offers excellent corrosion resistance in humid or corrosive environments. All machined edges are chamfered for safety and precision.
As a factory direct manufacturer, we support custom bores, keyways, hexagon and square bores, and non-standard sizes. Backed by ISO certification, the DW triple diaphragm coupling is an excellent choice for CNC machine tools, food packaging machinery, metallurgical equipment, photovoltaic systems, woodworking machinery, chemical equipment, semiconductor equipment, printing machinery, and railway track equipment.
📧 Get a Quote: ella@apexcoupling.com
Key Attributes
Key Features
Technical Specifications
Product Details
01. Extended Design for Superior Misalignment Compensation
The extended body design more effectively compensates for radial, angular, and axial deviations, protecting bearings and shafts from stress.
02. Triple 304 Stainless Steel Diaphragms
Imported elastic stainless steel diaphragms provide high elasticity, high torque capacity, and excellent fatigue resistance for long-term reliability.
03. Zero Backlash & Identical CW/CCW Characteristics
The gap-free shaft-to-hub connection eliminates backlash and ensures identical performance in both clockwise and counterclockwise rotation – ideal for precision positioning and reversing applications.
04. H7 Precision Bore
The bore tolerance is controlled within H7 precision, ensuring high concentricity, accurate shaft fit, and powerful locking.
05. Low Inertia for High-Speed Operation
The lightweight aluminium alloy construction and optimised design reduce rotational inertia, making the coupling ideal for high-speed servo and stepper motor applications.
06. High-Strength Aluminium Alloy with Corrosion Resistance
The aluminium alloy hubs resist oxidation, corrosion, and rust, extending service life in humid or corrosive environments without additional anti-corrosion treatment.
07. Clamp-Type Mounting with Clamping Screws
The split-hub clamp design provides secure, zero-backlash shaft connection and easy installation or removal.
Customization Options
Apexcoupling offers extensive customization for the DW triple diaphragm coupling:
Custom series: single or double configuration
Custom bore diameters and lengths
Keyway, hexagon, square, and spline bores
Alternative materials: high-strength aluminium alloy, stainless steel
Surface treatments: anodic oxidation, zinc plating, nickel plating, polishing
Custom diaphragm thickness and stiffness
Drawing-based production
OEM / ODM / OBM with your branding
📧 Send your drawing or requirements to: ella@apexcoupling.com
Applications
The DW aluminium alloy triple diaphragm clamp coupling is widely used in:
Servo Motors – High-precision closed-loop control systems
Stepper Motors – Precision motion control and positioning
Encoders – Precise motion feedback and positioning
CNC Machine Tools – Milling, turning, drilling, and engraving machines
Food Packaging Machinery – High-speed packaging and filling lines
Metallurgical Equipment – Heavy-duty industrial drives
Photovoltaic Power Generation – Solar tracking and positioning systems
Woodworking Machinery – Routers, saws, and edge banding machines
Chemical Industry – Corrosion-resistant aluminium alloy for harsh environments
Semiconductor Equipment – Wafer handling and precision stages
Food Machinery – Hygienic and reliable power transmission
Printing Machinery – Registration and tension control systems
Railway Track Equipment – Durable and stable coupling solutions
Why Choose Apexcoupling?
🏭 Factory Direct in Dongguan, China – Integrated manufacturing and trading, competitive pricing
🔩 Premium Aluminium Alloy & 304 Stainless Steel Diaphragms – Lightweight, corrosion-resistant, and durable
⚙️ Zero Backlash & Low Inertia – Precise transmission and high-speed capability
📐 H7 Precision Bore – High concentricity and accurate shaft fit
🔧 Clamp-Type Mounting – Secure, gap-free shaft connection
🧾 Full Customization – Single/double configuration, custom bores, keyways, and materials
✅ ISO Certified & IP65 – Quality assurance and environmental protection
📦 Fast Delivery – Factory stock and efficient production for urgent orders
💬 Expert Technical Support – We help you select the correct coupling for your application
Get a Quote Today
Ready to order or need more information? Contact us directly:
📧 Email: ella@apexcoupling.com
We reply within 24 hours with pricing, availability, and technical recommendations.
Product Tags: DW triple diaphragm coupling, aluminium triple diaphragm coupling, clamp type diaphragm coupling, servo motor coupling, encoder coupling, zero backlash coupling, stainless steel diaphragm coupling, single double diaphragm coupling, high precision flexible coupling, Apexcoupling
