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Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.


Learnings

Your bolting knowledge hub. Learn from the experts.

DIGITAL TOOLS

Explore our tools that make your working day easier.

SUSTAINABILITY

Contributing to a brighter tomorrow.

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  • Blade applications
  • Tower applications
  • Nacelle / Gearbox applications
  • Subsea Applications
  • Transportation / Installation applications

NACELLE / GEARBOX APPLICATIONS​

Wind turbines are exposed to harsh environmental conditions, including temperature extremes, humidity, dust, and saltwater exposure in offshore applications.​

Wind turbine gearboxes are expected to operate reliably for their intended lifetime, typically 20-25 years. Engineers need to schedule maintenance, inspections, and repairs to minimize downtime and optimize turbine performance. ​

Nord-Lock Group provides solutions to improve the installation and maintenance of the nacelle and gearbox, reducing downtime and improving structural integrity. ​

High variable loads

Wind turbine gearboxes are subjected to high torque and variable loads due to wind speed fluctuations. This can lead to fatigue and premature failure of gears and bearings.​

Superbolt® EzFit and HyFit expansion bolts have a split, tapered bore sleeve to provide a true radial force that translates to greater flange connection rigidity. This eliminates harmful micro-movements at the split line.​

Superbolt expansion bolts in a turbine gearbox

Common issues:

Dynamic loads and vibrations

Wind turbine gearboxes can generate significant vibration and noise during operation. These issues can result from misalignment, unbalanced loads, gear tooth damage, or improper lubrication.​

Nord-Lock® washers can be applied in the assembly of the nacelle, where they help maintain the preload on critical bolted connections. This ensures the integrity of the connections between various components within the nacelle, such as the generator, gearbox, and control systems, even in the presence of dynamic loads and vibrations.​

Tightening bolts in limited radial spaces

Accessing and maintaining wind turbine gearboxes can be challenging due to their location in the nacelle, often at considerable heights.​

Boltight® Typhoon+ hydraulic tensioners are specially designed for space-restricted applications such as wind turbines.​

Remote monitoring of preload

Performing maintenance and repairs on offshore wind turbines can be challenging due to their remote location and limited accessibility. Effective remote operation capabilities help minimize the need for onsite personnel and reduce maintenance costs.​

Superbolt® Load-Sensing Tensioners (LST) replace traditional nuts to provide remote preload monitoring and a live reading of data.​

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Nord-Lock wedge-locking washers prevent bolt loosening Nord-Lock Group Nord-Lock Wedge-Locking Products The Nord-Lock range includes original washers, X-series washers, steel construction washers, wheel nuts and custom solutions. Read more
Nord-Lock Group Boltight Hydraulic Tensioning Tools and Products Boltight hydraulic tensioners and tools can tighten and loosen multiple bolts simultaneously. Ensures bolt load accuracy and safety in bolt tightening situation. Read more
Nord-Lock Group Superbolt Multi-Jackbolt Tensioner Products Superbolt multi-jackbolt tensioning solutions are direct replacement for conventional nuts and bolts. Large bolt tightening is safer and eliminates time consuming bolting methods. Read more
Superbolt EzFit expansion bolts are designed for couplings that require bolts to transfer forces in shear Superbolt Superbolt EzFit For rotating couplings that require bolts to transfer forces to shear Read more
Superbolt Superbolt Load-Sensing Flexnut Use built-in sensors to automatically measure and communicate preload values for remote monitoring Read more

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Nord-Lock India Pvt Ltd

Unit No.206A, Wing B1, 2nd Floor, Boomerang
Chandivali Farm Road, Andheri East
Mumbai 400072
India

T: +91 22 4974 1712
E: info@nord-lock.in
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