Nord-Lock Bolt securing system INDIA distributor dealer agent agency Nordlock nord lock nordlock washer lock washer nord washer locking washer locking bolts lock bolts vibration dynamic load vibration proof loosening rotating washer washers wedge lock cam lock Junker test Vibration test joint problem failure bolt failure fastener DIN 25201 DIN 65151 bolted joints self secured nut secure bolt nut Torque guidelines lubricating bolts Delta Protekt Zinc flake Stainless washer 254SMO Hastelloy C-276 Inconel 718

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Download NORD-LOCK Standard Washers Catalogue

Exclusive Distributor of NORD-LOCK Washers in INDIA.

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 α 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.

• Industrial Vehicles
• Processing
• Mining & Forestry
• Power Plants
• Railroads
• Vehicles
• Offshore

	Download NORD-LOCK Standard Washers Catalogue Exclusive Distributor of NORD-LOCK Washers in INDIA. 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 α 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.
Locking Functions
	NORD-LOCK is a pair of washers with a wedge-locking action meeting DIN 25201 which is a unique method using tension instead of friction. The rise of the cams between the NORD-LOCK washers is greater than the pitch of the bolt. In addition, there are radial teeth on the opposite side. The washers are installed in pairs, cam face to cam face.
	When the bolt and/or nut is tightened the teeth grip and seat the mating surfaces. The NORD-LOCK washer is locked in place, allowing movement only across the face of the cams. Any attempt from the bolt/nut to rotate loose is blocked by the wedge effect of the cams.
	Here you see what happens when a bolt is untightened with a wrench. The pair of washers expand more than the corresponding pitch of the thread allows the bolt/nut to rise. NORD-LOCK washers positively lock the fastener in a joint which is subjected to any kind of vibration or dynamic loads.
Applications
• Industrial Vehicles • Processing • Mining & Forestry • Power Plants • Railroads • Vehicles • Offshore