The Nord-Lock Safety wheel nut is a fantastic product that helps against the fight of loose wheel nuts / wheel loss.
You can read here extracts from Nord-Locks own website this will show both the rigorous testing and quality of workmanship of this product.
Further information can be found at Nord-Locks own website www.safe-wheels.com
If you have any further questions please do not hesitate to contact us by phone or email.
Please note that these wheel nuts are not available for Alcoa aluminium wheels with the 32mm stud hole with the sleeved wheel nuts (Also known as Retro Fit)

SOME REASONS WHY WHEELS LOOSEN

Wheel nut loosening is caused by one or more of the following factors:

• - Poor road conditions
• - Vibration
• - Poor tightening technique or tools
• - Joint relaxation
• - Braking and acceleration
• - Human errors during assembly
• - Thermal expansion and contraction of wheel studs
• - Unbalanced wheels
• - Increased vehicle speed and capacity
• - Oil leakage from axel onto wheel nuts without locking function

IT’S A WIDE SPREAD PROBLEM

In the United Kingdom alone there are up to 400 wheel detachments from heavy trucks every year. Of these, on average, there are 134 accidents involving vehicle/property damage, 27 injuries and up to seven fatalities. So states a 2006 report commissioned by the United Kingdom Department of Transport. In the United States of America, the National Transportation Safety Board reports that wheel detachments occur at an estimated rate of 1,000 per year - almost three a day - resulting in about 20 accidents per week. In other countries, wheel loss occurs at comparable rates.

HOW DOES IT WORK?

The new Nord-Lock wheel nut effectively eliminates unintentional loosening of wheel nuts. When assembled correctly, the Nord-Lock wheel nut cannot loosen by itself. It represents a simple and cost effective way to make wheels safe and secure more productive and efficient operations.

The Nord-Lock wheel nut offers outstanding performance compared with conventional wheel nuts, as shown in independent comparative testing. The product is based on our proven wedge-locking technology, suits flat-faced steel rims.

PROVEN IN TESTS

The performance of the Nord-Lock wheel nut has been proven in a rigorous three step test program:

• - Laboratory testing
• - Controlled real-life testing, extreme conditions
• - Live real-life testing, normal conditions

Results prove that the Nord-Lock wheel nut does not rotate loose and will safely secure the wheel even under the most extreme operating conditions.

LABORATORY TESTING

At the IMA independent facility for engineering services in Dresden, Germany, the Nord-Lock wheel nut was subjected to severe vibration testing according to the DIN 651 51 standard (Junkers test). The testing also compared the function of the Nord-Lock wheel nut against other wheel nut products. The test results clearly show its superior safety. The Nord-Lock wheel nut performed flawlessly, even after being reused multiple times.

EXTREME OPERATING TESTS

Extreme operating conditions tests involving an on-road vehicle were performed on a track at RDW’s Test Center in Lelystad in The Netherlands. The tests involved the wheel joints of a 3-axle extended trailer being secured with Nord-Lock wheel nuts. The truck was then driven in both directions on the test center’s oval track with concave, banked curves in order to exert the same stress on all wheel joints. The Nord-Lock wheel nuts were not  retightened after 100 km of driving in order to simulate human error in combination with a worst case driving scenario.

NORMAL OPERATING TESTS

In order to definitively determine the functionality of the Nord-Lock wheel nut, it was tested on real life vehicles in real life service. During the first 100 km of driving and retightening a safety car followed the truck. In the on-road test the LCW truck tested at RDW in Lelystad was used for transport services for 7000 km without detecting any rotation of the wheel nuts. The vehicle was driven on an even mix of highway and urban roads.

PREMIUM QUALITY

The Nord-Lock wheel nut is a Swedish product manufactured from high-quality steel. The product is prelubricated to ensure uniform friction and thereby accurate preload during tightening. The lubrication also inhibits corrosion which facilitates disassembly and helps prolong the life of wheel studs. The Nord-Lock wheel nut is reusable and durable.

It’s the simple way to make wheels safe………