CENTAFLEX A Size 250
Centaflex coupling size 250A- 250AS| 2019608 | 778322
Centaflex A by SIZE
Centaflex A by TYPE
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Centaflex 250A coupling CF-A-250-0-50 | 2019608 | 778322
1,479.00€In stock
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Centaflex 250A coupling CF-A-250-0-60 | 2019608 | 778322
1,479.00€In stock
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Centaflex 250AS coupling CF-A-250-0-S-50 | 2019608 | 778322
1,515.00€In stock
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Centaflex 250AS coupling CF-A-250-0-S-60 | 2019608 | 778322
1,515.00€In stock
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Centaflex A coupling - Size 250A/250AS – High-Torque Coupling for Wind Turbines, Generators, and Heavy Industrial Drives| 2019608 | 778327
The CENTAFLEX A coupling Size 250 (also known as 250A coupling or 250AS coupling) is a torsionally soft, high-performance elastic element designed by CENTA for heavy-duty industrial, marine, and renewable energy applications.
With a nominal torque capacity of 3.0 kNm and peak torque up to 8.75 kNm, this size provides exceptional vibration damping, misalignment compensation, and long-term reliability in wind turbines, generator sets, and high-output powertrains.
Whether maintaining Vestas wind platforms or large-scale mechanical drives, the CF-A-250 ensures smooth operation, reduced torsional stress, and dependable service life under continuous load.
A Proven Solution for Wind Turbine Drivelines
The CENTAFLEX A coupling Size 250 is widely used in wind turbine drive systems, where precise torsional flexibility and damping are critical.
OEM configurations with VESTAS and other turbine brands use CF-A-250 couplings in:
Nacelle-mounted drivetrains
Low-speed shafts and gearbox interfaces
Generator-side flexible connections
Hybrid and repowering applications
These elastic elements effectively absorb resonance, reduce bearing stress, and protect gearbox and shaft assemblies from vibration fatigue — key advantages in long-term turbine operation.
Looking for a wind turbine coupling replacement? The CF-A-250 is among the most commonly installed sizes, available in both 50 and 60 Shore hardness for perfect fit and damping behavior.
⚙️ Technical Specifications – CENTAFLEX A coupling Size 250
Parameter | Value |
|---|---|
Nominal Torque (TKN) | 3.0 kNm |
Maximum Torque (TKmax) | 8.75 kNm |
Continuous Vibratory Torque (TKW) | 1.25 kNm |
Max Speed | 3000 rpm |
Temperature Range (NR) | –45 °C to +80 °C |
Shore Options | 50 / 60 Shore A |
Available Types | Type 0 and Type 0–S |
ATEX Certified | Yes |
Mounting Options – Centaflex A Type 0 and Centaflex A Type 0–S
Type 0 - Standard axial–radial bolted fit - Fixed driveline layouts and stationary installations
Type 0–S - Pins and bolts with axial float - Flexible or shifting shafts, typical in wind power applications
Why Shore Hardness Must Match
Each CENTAFLEX A coupling is tuned to its specific drivetrain through Torsional Vibration Analysis (TVA) performed by the OEM.
In wind turbine systems, incorrect Shore selection can cause serious issues, including:
In wind turbine systems, incorrect Shore selection can cause serious issues, including:
- Unwanted torsional resonance
- Gearbox bearing overload
- Premature element or component failure
Always replace with the same Shore hardness (50 or 60) specified by VESTAS or your turbine OEM.
Switching hardness values alters the torsional response and may compromise turbine performance or safety.
Switching hardness values alters the torsional response and may compromise turbine performance or safety.
OEM Quality vs. Aftermarket Risks
Genuine CENTA coupling elements are installed in most factory systems and are easily recognized by:
- CENTAFLEX branding molded into the rubber
- Patent numbers (D.B.P. – 2019608 / JAP.Pat. – 778322)
- OEM-tested compounds verified for torsional stiffness and durability
Aftermarket copies often use generic rubber grades, inconsistent hardness, and poor weight balance — increasing the risk of shaft vibration, resonance, and mechanical failure.
OEM Stock and Global Availability
All CENTAFLEX A coupling Size 250 elements sold through AWELASTIC.com are brand-new, original OEM products manufactured in Germany.
We maintain stock of both Type 0 and Type 0–S elements in 50 and 60 Shore hardness, ensuring fast delivery for:
- Wind turbine service and repowering projects
- Industrial genset overhauls
- Marine propulsion and offshore energy applications
Available Variants:
Express international delivery and B2B technical support available worldwide.
Need Help Selecting the Right CENTAFLEX Coupling?
Not sure which variant fits your application — Type 0 or 0–S, Shore 50 or 60?
📩 Send us your photo, tag, or dimensions, and our technical team will verify and ship the correct OEM CENTAFLEX coupling within hours.
📩 Send us your photo, tag, or dimensions, and our technical team will verify and ship the correct OEM CENTAFLEX coupling within hours.
The CENTAFLEX A coupling Size 250 (250A / 250AS) coupling remains the industry standard for wind turbine and heavy-duty generator systems — combining OEM precision, endurance, and availability through AWELASTIC.com.