NORD-LOCK®: Maximum Security for Bolted Joints

In the realm of engineering and construction, the integrity of bolted joints is paramount. Whether in towering skyscrapers, heavy machinery, or critical infrastructure, the reliability of these connections determines safety, stability, and longevity. Amidst this demand for robust solutions, NORD-LOCK® stands out as a beacon of security and innovation, offering unparalleled protection for bolted joints.

The Importance of Bolted Joints

Bolted joints serve as the backbone of countless structures and machinery, holding components together under immense pressure, vibration, and external forces. From bridges and wind turbines to automotive assemblies and offshore rigs, the performance of these connections directly impacts safety, operational efficiency, and maintenance costs.

Challenges Faced by Bolted Joints

Despite their ubiquity, bolted joints are not immune to challenges. Vibrations, thermal expansion, and dynamic loads can cause traditional fasteners to loosen over time, leading to compromised integrity and potential failure. The consequences of such failures can be catastrophic, resulting in downtime, repairs, and even life-threatening accidents.

Enter NORD-LOCK®: The Ultimate Solution

Recognizing the need for a reliable, fail-safe solution, NORD-LOCK® developed a groundbreaking technology that revolutionizes bolted joint security. At the heart of this innovation is the NORD-LOCK® wedge-locking system, which utilizes a unique pair of washers with interlocking teeth that grip the bolted surfaces tightly, preventing loosening and maintaining clamp load even under extreme conditions.

How It Works

The NORD-LOCK® system operates on the principle of wedge locking, where the external radial teeth of the washers embed themselves into the mating surfaces of the bolted joint. As the joint is subjected to vibration or dynamic loads, the interlocking teeth create a wedge effect, increasing friction and resistance to rotation. This self-locking mechanism ensures that the bolted connection remains secure and stable, even in the harshest environments.

Benefits of NORD-LOCK®

Maximum Security : NORD-LOCK® washers provide unmatched protection against loosening, ensuring the integrity and safety of critical bolted joints.

Improved Performance : By maintaining clamp load and preventing micro-movements, NORD-LOCK® enhances the performance and reliability of machinery and structures, reducing the risk of downtime and maintenance.

Versatility : Available in a range of sizes and materials, NORD-LOCK® washers can be customized to suit various applications and environments, from heavy-duty industrial settings to precision engineering.

Cost-Efficiency : While the initial investment in NORD-LOCK® may be higher than traditional fasteners, the long-term savings in terms of reduced maintenance, repairs, and downtime far outweigh the upfront costs.

Proven Reliability : With over 30 years of engineering expertise and a track record of success in diverse industries, NORD-LOCK® is trusted by engineers and manufacturers worldwide for its reliability and performance.

In a world where safety, reliability, and efficiency are non-negotiable, NORD-LOCK® stands as a beacon of excellence in bolted joint security. With its innovative wedge-locking technology, NORD-LOCK® offers maximum security and peace of mind, ensuring that critical connections remain steadfast in the face of adversity. From towering skyscrapers to heavy machinery, NORD-LOCK® is the ultimate guardian of bolted joint integrity, setting the standard for excellence in engineering and construction.

The NORD-LOCK^® bolt securing system utilizes tension instead of friction to secure critical joints exposed to vibration and dynamic loads.

The Junker vibration test complying to DIN 65151 is an excellent method for testing and comparing the security of bolted joints. The following diagram displays NORD-LOCK's superior performance in maintaining clamp load, and the unique wedge locking function of the NORD-LOCK washers is proven by the clear increase in clamp load during untightening.