DLN Aluminum Alloy Double Diaphragm Clamp Coupling – Round Type

Factory Direct from Guangdong, China | High-Strength Aluminum Alloy Hubs | 304 Stainless Steel Double Diaphragms | Anodic Oxidation | Clamp Type | Zero Backlash | Low Inertia | For Servo & Stepper Motors | Custom Materials Available

Product Overview

The DLN Aluminum Alloy Double 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 Guangdong, China, this round-type double diaphragm coupling is specifically designed for servo motors, stepper motors, and other precision drive systems.

The coupling features high-strength aluminum alloy hubs (dedicated coupling-grade aluminum) with anodic oxidation surface treatment for excellent corrosion resistance and durability. The double 304 stainless steel diaphragms provide high torque rigidity, allowing precise control of shaft rotation and high-precision positioning. 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 its low inertia design, the DLN coupling is suitable for high-speed operation and dynamic response. The compact round structure allows for easy installation in space-constrained applications. As a factory direct manufacturer, we maintain large stocks of semi-finished products for fast delivery and support custom materials and special dimensions according to your requirements.

📧 Get a Quote: ella@apexcoupling.com

Key Attributes

Key Features

Technical Specifications

Product Details

01. High-Strength Aluminum Alloy Hubs
The shaft sleeve is made of high-strength aluminum alloy specifically for couplings, providing a lightweight, corrosion-resistant, and durable solution.

02. 304 Stainless Steel Double Diaphragms
The double diaphragms are made from 304 stainless steel, offering high torque rigidity and enabling high-precision control of shaft rotation.

03. Zero Backlash & Suitable for Reversing
The no-clearance shaft and hub connection eliminates backlash, making the coupling ideal for both positive and negative rotation.

04. High Torque Rigidity & Precise Control
High torque rigidity allows accurate control of shaft rotation and high-precision positioning for demanding motion control applications.

05. Low Inertia for High-Speed Operation
The low-inertia design makes the coupling suitable for high-speed operation and fast dynamic response.

06. Clamping Screw Fastening
The clamp-type mounting with clamping screws ensures secure locking and easy installation or removal.

07. Anodic Oxidation Surface Treatment
The surface is treated with anodic oxidation for improved corrosion resistance and a clean, professional appearance.

08. Designed for Servo & Stepper Motors
Optimized for servo motors, stepper motors, and other precision drive systems.

Customization Options

Apexcoupling offers extensive customization for the DLN double diaphragm coupling:

• Custom bore diameters and lengths

• Keyway, hexagon, square, and spline bores

• Alternative materials: high-strength aluminum 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 DLN aluminum alloy double diaphragm clamp coupling is widely used in:

• Servo Motors – High-precision closed-loop control systems

• Stepper Motors – Precision motion control and positioning

• CNC Machine Tools – Milling, turning, drilling, and engraving machines

• Factory Automation (FA) – Robotic arms, conveyors, and pick-and-place systems

• Packaging Machinery – High-speed packaging and filling lines

• Printing Machinery – Registration and tension control systems

• Semiconductor Equipment – Wafer handling and precision stages

• Medical Equipment – Diagnostic and surgical positioning devices

• General Industrial Drives – Where zero backlash and precise motion control are required

Why Choose Apexcoupling?

🏭 Factory Direct in Guangdong, China – Integrated manufacturing and trading, competitive pricing

🔩 Premium Aluminum Alloy & 304 Stainless Steel Diaphragms – Lightweight, corrosion-resistant, and durable

⚙️ Zero Backlash & High Torque Rigidity – Precise transmission for high-precision applications

📐 Low Inertia & High Speed – Suitable for dynamic servo and stepper motor systems

🔧 Clamp-Type Mounting – Secure, gap-free shaft connection

🧾 Full Customization – Custom bores, keyways, materials, and dimensions

✅ ISO Certified & IP65 – Quality assurance and environmental protection

📦 Large Semi-Finished Stock – Fast delivery and short lead times

💬 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: DLN double diaphragm coupling, aluminum double diaphragm coupling, clamp type diaphragm coupling, servo motor diaphragm coupling, stepper motor coupling, zero backlash coupling, 304 stainless steel diaphragm coupling, high torque rigidity coupling, round diaphragm coupling, Apexcoupling