Centaflex A by SIZE
Centaflex A by TYPE
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Centaflex A Size 50 – High-Demand Flexible Coupling for Diesel Engines, Pumps, and Gensets
The Centaflex A Size 50 is one of the most widely used flexible couplings across multiple industries. Designed for torsional vibration damping, misalignment compensation, and reliable torque transmission, it’s a go-to solution for diesel engine drives, power take-offs, generators, compressors, and more.
Whether you’re replacing a worn element or designing a new system, the CF-A-50 offers proven performance, fast availability, and OEM quality trusted worldwide.
What Is the Centaflex A Size 50?
The Centaflex 50 coupling is a torsionally soft elastic element made from high-grade natural rubber. It protects machines from torque spikes, resonance, and misalignment stresses. Available in both Type 0 and Type 0–S, it fits a wide range of flywheel-driven or shaft-connected applications.
With a nominal torque rating of 0.7 kNm, the CF-A-50 is built to work hard—and last.
🔑 Common Applications
- Diesel and gas engine drives
- Generators and gensets
- Hydraulic power units (HPUs)
- Industrial compressors and vacuum pumps
- Agricultural PTO shafts and power packs
- Marine auxiliary systems
- Mechanical engineering test benches
This size is also frequently specified by OEMs as standard for engines between 20–70 kW.
📐 Technical Specifications – Centaflex A Size 50
| Parameter | Value |
|---|---|
| Nominal Torque (TKN) | 0.7 kNm |
| Maximum Torque (TKmax) | 2.1 kNm |
| Continuous Vibratory Torque | 0.3 kNm |
| Max Speed | 4000 rpm |
| Temperature Range (NR) | –45 °C to +80 °C |
| Available Types | Type 0, Type 0–S |
| Shore Options | 50 and 60 |
| ATEX Certified | Yes |
| Split Element | On request (rare) |
Type 0 vs. Type 0–S
| Type | Mounting Style | Use Case |
|---|---|---|
| Type 0 | Standard axial and radial mounting with bolts | Compact installations with fixed shaft spacing |
| Type 0–S | Pins and bolts for axial float and easier removal | Installations requiring thermal expansion tolerance or service access |
Shore Hardness: Why You Must Match the Original
Centaflex A couplings are not generic rubber parts. Each Shore hardness—50 or 60—has a very specific dynamic behavior, directly affecting torsional stiffness, resonance characteristics, and system lifespan.
Replacing a worn element with the wrong Shore hardness can lead to premature failure, noise, or torsional resonance.
Always match the original Shore value (usually marked on the coupling or machine documentation). These elements are often selected during OEM design together with TVA (Torsional Vibration Analysis) and machine-specific calculations.
📌 About D.B.P. – 2019608 and JAP.Pat. – 778322
If your old element is stamped with D.B.P. – 2019608 or JAP.Pat. – 778322, these are international patent numbers, not product codes. They confirm your element is an authentic Centaflex A, but do not indicate size or type.
To identify your replacement element, check:
- Size marking (e.g. CF-A-050)
- Type (0 or 0–S)
- Shore hardness (usually 50 or 60)
- A photo of the old element or machine tag
📖 Read more: D.B.P. 2019608 and JAP.Pat. 778322 on your Centaflex A coupling
✅ Why Buy from AWELASTIC.com?
- 📦 Always in Stock – We keep CF-A-50 elements in both Shore 50 and 60 ready for immediate dispatch:
- 🌍 Worldwide Shipping – Express delivery options available across EU and globally
- 🛡️ OEM Only – No replicas, only genuine CENTA couplings
- 🛠️ Industrial Expertise – Need help identifying your element? We’ll help you match it quickly
- 🔍 Perfect for Maintenance – Clear dimensions, ready-to-install parts, and consistent availability
📞 Get Help, Get It Fast
Still unsure whether to pick Type 0 or 0–S? Need help choosing between Shore 50 or 60? 📩 Send us your specs or photos and our team will confirm the exact OEM part number for your setup.
Centaflex A Size 50 is the most requested size for a reason—reliable, versatile, and now available with fast shipping at AWELASTIC.com.