CPWR-CPDR Precision Miniature Universal Joint Coupling – Quick Locking Type with Cross Shaft

Factory Direct | 20CrMo Alloy Steel | Cross Slider or Needle Bearing | H7 Precision Bore | 30° Working Angle | Quick Detachable Design

Product Overview

The CPWR-CPDR Precision Miniature Universal Joint Coupling is a compact, high-performance power transmission solution designed for applications requiring angular misalignment compensation in confined spaces. Available in two distinct configurations – CPWR (cross slider type) and CPDR (needle roller bearing type) – this coupling series delivers reliable torque transmission, low backlash, and smooth operation even at high speeds.

Featuring a unique quick locking (detachable) mechanism, the CPWR-CPDR coupling allows for rapid connection and disconnection without the need for special tools – significantly reducing setup and maintenance time. Manufactured from high-quality 20CrMo alloy steel with H7 precision‑ground bores, this coupling offers exceptional durability, wear resistance, and accuracy. With optional keyways, hexagon bores, and custom dimensions, it is the ideal choice for CNC machines, automation equipment, packaging machinery, and precision instrumentation.

📧 Get a Quote: ella@apexcoupling.com | WhatsApp/WeChat: +86 13431039760

Key Features

Technical Specifications

Model Designation & Dimensions

The CPWR-CPDR coupling is designated as follows:

01CPWR – OuterDiameter × Length – d1 × d2
01CPDR – OuterDiameter × Length – d1 × d2

Example: 01CPWR‑16×38‑8×8
→ Series CPWR, Outer diameter = 16 mm, Length = 38 mm, Bore d1 = 8 mm, Bore d2 = 8 mm

Other sizes and custom dimensions available on request.

Custom ordering options (add suffix to bore size):

• Add K for keyway (DIN 6885/1‑JS9) – e.g., 8K

• Add F for hexagon bore – e.g., 8F

• Add S for square bore – e.g., 8S

• Add H for spline bore – e.g., 8H

Note: The quick locking mechanism (d2 side) is supplied with a finished H7 bore only. Other bore profiles available on the d1 side.

Quick Locking Mechanism – Key Advantage

The quick locking (detachable) design allows the coupling to be separated and reconnected rapidly without disturbing the shaft alignment. This feature is particularly valuable for:

• Frequent maintenance and inspection – reduces downtime

• Quick changeover between different tooling or setups

• Easy assembly in confined spaces – no need to access the full shaft length

• Emergency disconnection for safety or troubleshooting

Key Advantages at a Glance

✔ Precision Ground – H7 bore tolerance ensures accurate shaft fit

✔ High‑Speed Ready – CPDR needle bearing version supports up to 4,000 RPM

✔ True Bearing Steel – 20CrMo alloy with uniform hardness and superior wear resistance

✔ Quick Detach – Unique quick locking mechanism for fast installation and removal

✔ Flexible Bore Options – Cylindrical, keyway, or hexagon – choose what suits your application

✔ Low Noise Operation – Precision machining and grinding reduce vibration and noise at high speeds

Applications

The CPWR-CPDR miniature universal joint coupling is widely used in precision and compact drive applications:

• CNC Machine Tools – Small‑axis drives, tool changers, auxiliary spindles

• Packaging Machinery – Registration and indexing drives

• Printing Equipment – High‑speed paper feed and registration systems

• Semiconductor Equipment – Precision wafer handling and positioning

• Automation & Robotics – Small robotic arms, pick‑and‑place systems

• Food Processing Machinery – Compact drive connections in hygienic environments

• Medical Devices – Diagnostic and surgical instrument drives

• Textile Machinery – Tension control and small‑drive applications

• Laboratory & Instrumentation – Precision test and measurement equipment

Why Choose Apexcoupling?

🏭 Factory Direct – Integrated manufacturing and trading, competitive pricing

🔩 Premium 20CrMo Alloy Steel – Bearing‑grade material for superior hardness and wear resistance

⚡ Quick Locking Design – Unique detachable mechanism for rapid installation and maintenance

🔧 Choice of CPWR or CPDR – Select cross slider or needle bearing to match your speed and precision requirements

✅ ISO Certified Quality – Rigorous inspection and precision grinding ensure consistent quality

🛠️ Full Customisation – Bores, keyways, hexagon bores, special dimensions – no MOQ for standard variations

📦 Fast Delivery – Standard models in stock, ready to ship

💬 Expert Engineering Support – Our team helps you select the optimal configuration

Custom & Non‑Standard Orders

Apexcoupling offers extensive customisation for the CPWR-CPDR series:

• Custom bore diameters (2 mm – 30 mm+)

• Keyway, hexagon, square, and spline profiles

• Non‑standard outer diameters and overall lengths

• Special surface treatments (chrome plating, etc.)

• OEM/ODM with your branding

📧 Send your drawing or requirements to: ella@apexcoupling.com

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