The NordLock® Wheel Nut safely secures wheels by maintaining high clamping force even under extreme operating conditions. This unique wedge-locking system offers the following advantages:
- Maximum safety
- Resists loosening caused by vibration and dynamic loads
- Ease of assembly and disassembly
- Locking function is not affected by lubrication
- Positive locking at low and high preload levels
- Controllable preload
The Nord-Lock® wheel nut is based on Nord-Lock's unique wedge-locking technology, which uses tension instead of friction to secure bolted joints. Each nut incorporates a pair of captivated washers with cam faces on one side, with a cam angle 'a' greater than the thread pitch 'ß'. On the opposite side there are radial teeth. When the 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.