Wind Turbine Couplings

Wind Turbine Couplings – High-Reliability Power Transmission for Renewable Energy

JM Wind Turbine Couplings are precision-engineered to connect the gearbox high-speed shaft and generator shaft, ensuring efficient torque transmission while protecting critical drivetrain components. Designed specifically for onshore and offshore wind turbines, our couplings deliver ultra-high reliability, minimal maintenance, and superior misalignment compensation—key requirements for wind energy applications.

Core Functions

✔ Torque Transmission – Efficient power transfer from gearbox to generator

✔ Overload Protection – Integrated slip torque limiter prevents damage

✔ Advanced Compensation – Handles axial, radial & angular misalignment

✔ Electrical Insulation (Optional) – Prevents stray currents

✔ Brake Disc Integration (Optional) – Simplified system design

✔ Speed Monitoring (Optional) – Built-in encoder provisions

JM Wind Coupling Advantages

1. Patented Diaphragm Design

High-Strength Stainless Steel Membranes (AISI 631)

50% Higher Fatigue Life vs. conventional designs

2. Lightweight Composite Intermediate Shaft

Carbon Fiber Reinforced Polymer (CFRP) construction

60% Weight Reduction vs. steel shafts

10kV+ Dielectric Strength for electrical isolation

3. Fail-Safe Torque Limiter

Precision-Calibrated Slip Torque (factory-tested)

<5% Torque Variation between recalibrations

Automatic Re-engagement after overload

4. Robust Engineering

Maintenance-Free (20+ year design life)

-40°C to +80°C operational range

Corrosion-Resistant coatings for offshore use

Product Matrix

Turbine Type Power Rating Available Models

DFIG 1MW - 4.XMW JM-WC-DF-1000 to JM-WC-DF-4000

PMDD/Hybrid 3MW - 8.XMW JM-WC-PM-3000 to JM-WC-PM-8000

Technical Specifications

Parameter DFIG Models: PMDD Models

Max Torque: 85 kNm 320 kNm

Max Speed: 2,100 RPM 1,500 RPM

Weight: 48-175 kg 210-680 kg

Insulation: 10kV standard 15kV optional