ARTICLE

Nord-Lock wheel nut

18 May 2016

The Nord-Lock wheel nut safely secures wheels on on-road and off-road heavy vehicles by maintaining high clamping force even under extreme operating conditions.

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 for more productive and efficient operations. The Nord-Lock wheel nut is designed for flat-faced steel rims.

The Nord-Lock wheel nut is based on the same principle as the Nord-Lock washers. Each nut incorporates a pair of captivated washers with cam faces on one side, with a cam angle ‘α’ greater than the thread pitch ‘β’. On the opposite side there are radial teeth. When the wheel nut is tightened, the teeth of the Nord-Lock washers grip and lock the mating surfaces, allowing movement only across the cam faces. Any rotation of the wheel nut is blocked by the wedge effect of the cams.

 
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