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DCJ Aluminium Alloy Jaw Coupling – Clamp Type Split Design for Servo Motor & Ball Screw | DPG Series | 45mm Bore
Model Number
Check below, custom
| Model | Outer Diameter (mm) | Length (mm) | Bore Range (mm) |
|---|---|---|---|
| DPG23 | 30 | 53 | 5–15 |
| DPG23 | 40 | 66 | 8–22 |
| DPG23 | 55 | 78 | 12–30 |
| DPG23 | 65 | 90 | 14–38 |
| DPG23 | 80 | 113.5 | 19–45 |
Note: Non-standard customization is available. For other specifications, please consult customer service.
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
DCJ Aluminium Alloy Jaw Coupling – Clamp Type Split Design for Servo Motor & Ball Screw
Factory Direct from Guangdong, China | Aviation-Grade Aluminium Alloy | Clamp Type Split Design | 45mm Bore | H7 Precision | Zero Backlash | German Imported Polyurethane Spider | 12.9-Grade Screws | DPG Series | Custom Bores Available
Product Overview
The DCJ Aluminium Alloy Jaw Coupling (also available as the DPG aluminium split jaw coupling) from Apexcoupling is a high-precision, flexible shaft coupling designed for accurate torque transmission, zero backlash, and long service life in demanding motion control applications. Manufactured in Dongguan, Guangdong, China, this clamp-type split design coupling is ideal for servo motors, ball screws, encoders, and other precision drive systems.
The coupling features aviation-grade aluminium alloy hubs with a clamp-type (split-hub) mounting and a German-imported polyurethane elastomeric spider. The split design allows for easy installation and removal without moving the connected shafts, significantly reducing maintenance downtime. The H7 precision bore ensures high concentricity and a secure shaft fit, while the zero backlash design makes it suitable for both forward and reverse rotation.
The aluminium alloy construction provides excellent corrosion resistance, light weight, and a high strength-to-weight ratio. The surface is anodized for improved corrosion resistance and a smooth, burr-free finish. The polyurethane spider absorbs vibration, compensates for radial, angular, and axial misalignments, and offers excellent wear resistance and oil resistance. The coupling is detachable, easy to install, and requires no lubrication, allowing continuous long-term operation with minimal maintenance.
With 12.9-grade high-rigidity screws, ISO certification, and full customization support (bores, keyways, hexagon, square, spline), the DCJ coupling is a reliable and cost-effective alternative to imported jaw couplings.
📧 Get a Quote: ella@apexcoupling.com | WhatsApp/WeChat: +86 13431039760
Key Attributes
| Attribute | Value |
|---|---|
| Brand | Apexcoupling |
| Model | DPG Aluminium Split Jaw Coupling |
| Coupling Type | Jaw / Spider Coupling (Clamp Type, Split Design) |
| Material | Aluminium Alloy |
| Wheel Body Material | Aluminium Bronze |
| Hub Material | Aluminium Alloy |
| Elastomer Material | German Imported Polyurethane |
| Bore Diameter | 45 mm |
| Bore Tolerance | H7 Precision |
| Mounting | Clamp Type (Split-Hub) |
| Screws | 12.9-Grade |
| Backlash | Zero |
| Compensation | Radial, Angular, Axial |
| Surface Treatment | Anodic Oxidation |
| Lubrication | Not Required |
| Place of Origin | Dongguan, Guangdong, China |
| Certification | ISO Certified |
Key Features
| Feature | Benefit |
|---|---|
| Aviation-Grade Aluminium Alloy Hubs | Lightweight, corrosion-resistant, and durable with a smooth, burr-free finish |
| Clamp Type Split Design | Easy installation and removal without moving shafts – reduces downtime |
| Zero Backlash | Suitable for forward and reverse rotation – ideal for servo and positioning applications |
| H7 Precision Bore | High concentricity, accurate shaft fit, and powerful locking |
| German Imported Polyurethane Spider | Vibration damping, shock absorption, and misalignment compensation |
| 12.9-Grade High-Rigidity Screws | Secure locking and reliable torque transmission |
| Detachable Design | Easy maintenance and replacement |
| No Lubrication Required | Low maintenance and continuous long-term operation |
| Anodic Oxidation Surface | Standard finish for improved corrosion resistance |
| Compact & Low Inertia | Small radial dimensions, light weight, and low moment of inertia – suitable for medium-to-high speed |
| Large Compensation Capability | Compensates axial, radial, and angular misalignments |
| Full Customization | Bores, keyways, hexagon, square, and spline available |
| ISO Certified | Quality assurance and international interchangeability |
| Factory Direct | Competitive pricing and stable supply from China |
Technical Specifications
| Parameter | Details |
|---|---|
| Product Name | DCJ / DPG Aluminium Alloy Jaw Coupling |
| Brand | Apexcoupling |
| Type | Jaw / Spider Coupling (Clamp Type, Split Design) |
| Material | Aviation-Grade Aluminium Alloy |
| Wheel Body Material | Aluminium Bronze |
| Hub Material | Aluminium Alloy |
| Elastomer | German Imported Polyurethane |
| Bore Diameter | 45 mm (customizable) |
| Bore Tolerance | H7 Precision |
| Mounting | Clamp Type (Split-Hub) |
| Screws | 12.9-Grade |
| Backlash | Zero |
| Compensation | Radial, Angular, Axial |
| Surface Treatment | Anodic Oxidation |
| Lubrication | Not Required |
| Maintenance | Low |
| Certification | ISO |
| Place of Origin | Dongguan, Guangdong, China |
Product Details
01. Aviation-Grade Aluminium Alloy with Anodized Surface
The hubs are made from aviation-grade aluminium alloy, precision-machined for a smooth, burr-free finish. The anodized surface provides excellent corrosion resistance and a professional appearance.
02. Clamp Type Split Design
The split-hub clamping design allows for easy installation and removal without moving the connected shafts, significantly reducing maintenance downtime.
03. H7 Precision Bore
The bore tolerance is controlled within H7 precision, ensuring high concentricity, accurate shaft fit, and powerful locking.
04. German Imported Polyurethane Spider
The polyurethane elastomer offers excellent wear resistance, oil resistance, and shock absorption, with a wide adjustable range.
05. 12.9-Grade High-Rigidity Screws
High-strength 12.9-grade screws ensure powerful clamping force and reliable torque transmission.
06. No Lubrication & Low Maintenance
The coupling requires no lubrication, has low maintenance requirements, and can operate continuously for long periods.
Series Available
Apexcoupling offers a full range of jaw couplings to meet different mounting and performance requirements:
| Series | Description |
|---|---|
| Clamp Type (DCJ / DPG) | Split-hub clamping for zero backlash and easy installation |
| Star Elastic Series | Standard star-shaped elastic spider |
| Set Screw Type | Economical set screw mounting |
| Enlarged Bore Elastic | Larger bore diameters for heavy-duty applications |
| Expansion Sleeve Type | For high-torque and shaft-locking applications |
| Double Elastic Star Series | Enhanced vibration damping and misalignment compensation |
If you cannot find the size you need, please contact us for custom manufacturing.
Customization Options
Apexcoupling offers extensive customization for DCJ / DPG jaw couplings:
Custom bore diameters and lengths
Keyway, hexagon, square, and spline bores
Alternative materials: aluminium alloy, stainless steel, steel
Alternative elastomer materials: PU, NBR, Viton
Surface treatments: anodic oxidation, black oxide, nickel plating
Drawing-based production
OEM / ODM / OBM with your branding
📧 Send your drawing or requirements to: ella@apexcoupling.com
Applications
The DCJ aluminium alloy jaw coupling is widely used in:
Servo Motors – High-precision closed-loop control systems
Ball Screws – Smooth, reaction-free linear motion
Encoders – Precise motion feedback and positioning
CNC Machine Tools – Milling, turning, drilling, and engraving machines
Factory Automation (FA) – Robotic arms, conveyors, and pick-and-place systems
Metallurgy & Mining – Crushers, conveyors, and processing equipment
Petroleum & Chemical – Pumps, compressors, and mixers
Lifting & Transportation – Cranes, hoists, and conveyor systems
Light Textile & Printing – Spinning, weaving, and printing machinery
Water Pumps & Fans – Centrifugal pumps, water supply, and ventilation
Packaging Machinery – High-speed packaging and filling lines
Semiconductor Equipment – Wafer handling and precision stages
Medical Equipment – Diagnostic and surgical positioning devices
Railway Track Equipment – Durable and stable coupling solutions
Why Choose Apexcoupling?
🏭 Factory Direct in Dongguan, China – Integrated manufacturing and trading, competitive pricing
🔩 Premium Aviation-Grade Aluminium Alloy – Lightweight, corrosion-resistant, and durable
⚙️ Clamp Type Split Design – Easy installation and maintenance without moving shafts
📐 H7 Precision Bore & Zero Backlash – High concentricity and accurate motion control
🧵 German Imported Polyurethane Spider – Vibration damping and misalignment compensation
🔧 12.9-Grade High-Rigidity Screws – Secure locking and reliable torque transmission
✅ ISO Certified – Quality assurance and international interchangeability
📦 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
📱 WhatsApp / WeChat: +86 13431039760
🌐 Website: www.apexcoupling.com
We reply within 24 hours with pricing, availability, and technical recommendations.
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DCJ aluminium jaw coupling
