The NORD-LOCK bolt securing system uses geometry to safely lock bolted joints in the most critical applications. 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
• Same temperature characteristics as standard bolt/nut
• Reusable
Tension makes the bolt
self-locking The key is the difference in angles. Since
the cam angle " a " is larger
than the thread pitch " β ", the pair of washers expand more than the corresponding pitch
of the thread. NORD-LOCK washers positively lock the fastener in a joint which is subjected to extreme vibration
or dynamic loads.
Nordlock Washers