Perman Corporation Introduces German HEICO Anti-Loosening Wheel Nuts for Trucks

Introduction of HEICO Anti-Loosening Wheel Nuts by Perman Corporation

Perman Corporation, headquartered in Nishi-ku, Osaka, has recently begun offering an innovative solution to enhance the safety of large trucks. The company has introduced the HEICO anti-loosening wheel nuts, specifically designed to prevent wheel detachment accidents. With the increasing number of incidents attributed to loosening wheel nuts, this product aims to provide drivers with greater peace of mind while on the road.

About HEICO Corporation

Founded 126 years ago, HEICO Corporation in Germany has a rich history beginning with the production and sale of decorative nails for furniture. In 1993, the company expanded into the manufacturing of cold-forged parts, and in 2010, they introduced anti-loosening washers and nuts to their product line. The brand is recognized for its products in various sectors, including automotive manufacturers, construction machinery, and even space stations, all demonstrating a commitment to quality and innovation. HEICO has established a global presence with 27 locations in 13 countries and utilizes sophisticated testing equipment, including three Junker vibration testing machines, to ensure their products meet high-quality standards.

Understanding the Issue of Wheel Nut Loosening

The common practice dictates that wheel nuts on vehicles are tightened in a clockwise direction. However, it's important to note that the nuts on the left wheel tend to rotate in the opposite direction when the vehicle is in motion, leading to an increased likelihood of loosening. Seasonal challenges, such as road salt (calcium chloride) used for de-icing, can corrode the wheel nuts and hub bolts, exacerbating the risk of detachment. This new range of HEICO anti-loosening wheel nuts is intended to combat these challenges and enhance overall safety for truck drivers.

Product Specifications

The HEICO anti-loosening wheel nuts come with the following specifications:

- Compatibility: Suitable for Hino, Mitsubishi, Isuzu, and UD trucks.
- Inner Diameter: φ22mm x 1.5 pitch
- Outer Diameter: 33mm (across corners)
- Design: Compatible with 10 and 8 holes (new ISO standard)
- Quantity: Sold in packs of 10
- Weight: 0.16kg each

Innovative Features of HEICO Wheel Nuts

These anti-loosening nuts are uniquely designed to prevent loosening by incorporating a HEICO-LOCK® wedge lock washer. This washer, molded together with the nut during manufacturing, ensures consistent correct locking position during use. The wedge angle of the cam (α) is larger than the lead angle of the bolt (β), ultimately leading to increased axial force as the bolt attempts to loosen, allowing the nut to self-lock and maintain tightness.

By utilizing these nuts, drivers can reduce concerns about wheel detachment while driving, enhancing safety and providing a reliable solution for their operations. Furthermore, HEICO anti-loosening wheel nuts can be reused; however, users are advised to inspect the condition of the nuts thoroughly before reuse, replacing them if rust or damage is noted.

Rigorous Testing for Reliability

To validate the performance of HEICO wheel nuts, objective testing was conducted using Junker testing machines. The setup included a standard M22 x 1.5 bolt, with tests running under the DIN25201-4 standard. The initial tightening load was maintained at approximately 127kN, with results showing that while standard ISO nuts exhibited significant loosening after 2000 cycles, HEICO nuts maintained above 80% residual axial force, thus passing the stringent criteria.

Conclusion

The HEICO anti-loosening wheel nuts are available for purchase at Perman Shop locations. By integrating these advanced products, truck operators can take proactive measures to prevent accidents caused by wheel nut loosening. Interested customers are encouraged to visit one of the Perman Shops in Osaka, Hiroshima, or Tokyo to get a closer look at the innovative HEICO products designed for truck safety.