El sistema de seguridad NORD-LOCK® para pernos utiliza la tensión en lugar de la fricción para asegurar la sujeción de las uniones expuestas a vibraciones y cargas dinámicas.
Máxima seguridad para las uniones empernadas
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Since the cam angle (alfa) |
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.
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
- Same temperature characteristics as standard bolt/nut
- Reusable
Product range
- Steel washers, zinc flake coated with Delta Protekt©, M3 – M130 / #5 – 5”
- Stainless steel washers, M3 – M80 / #5 – 3 1/8”
- Special alloyed washers for high temperatures or highly corrosive environments (upon request)