DSEJ Aluminum Alloy High Sensitivity Single Diaphragm Set Screw Coupling

Factory Direct from Guangdong, China | High-Strength Aluminum Alloy Hubs | 304 Stainless Steel Single Diaphragm | Anodic Oxidation | Set Screw ( Positioning Screw ) Fastening | Zero Backlash | Low Inertia | High Torque Rigidity | For Servo & Stepper Motors | Custom Materials Available

Product Overview

The DSEJ Aluminum Alloy High Sensitivity Single Diaphragm Set Screw Coupling from Apexcoupling is a high-precision flexible shaft coupling engineered for accurate torque transmission, zero backlash, and superior sensitivity in demanding motion control applications. Manufactured in Guangdong, China, this single 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 single 304 stainless steel diaphragm provides high torque rigidity, enabling precise control of shaft rotation and high-precision positioning. The set screw (positioning screw) fastening method ensures a secure, zero-backlash shaft connection, making it ideal for forward and reverse rotation.

With its low inertia design, the DSEJ coupling is suitable for high-speed operation and fast dynamic response. The high sensitivity makes it particularly suitable for applications requiring precise motion control and rapid acceleration/deceleration. 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 Single Diaphragm
The single diaphragm is made from 304 stainless steel, offering high torque rigidity and enabling high-precision control of shaft rotation.

03. High Sensitivity & Precise Control
The high sensitivity design allows for rapid response and accurate motion control, making it ideal for dynamic servo and stepper motor applications.

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

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

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

07. Set Screw (Positioning Screw) Fastening
The set screw fastening method ensures secure locking and easy installation or removal.

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

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

Customization Options

Apexcoupling offers extensive customization for the DSEJ single 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 DSEJ aluminum alloy high sensitivity single diaphragm set screw 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, high sensitivity, 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 Diaphragm – Lightweight, corrosion-resistant, and durable

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

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

🔧 Set Screw Fastening – 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.

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