Nord-lock lock lock washer is also known as lock washer, self-locking washer, self-locking gasket, din25201 lock washer, double fold self-locking lock washer, etc. All kinds of machines and components can not be separated from fasteners in the connection and assembly. Fasteners bring convenience to the mechanical industry. They also have an inevitable
weakness. They will loose themselves in severe vibration, causing damage, disassembly and even accidents of parts or a complete equipment. Then nord-lock lock lock washer can prevent thread loosening.

Nord-lock lock lock washer is to increase the static friction force to play a loose effect, low vibration, light load, uniform state of the anti loose effect can meet the needs of enterprises. However, under strong vibration, high load and fast motion, it can not achieve complete anti loosing effect, only prolonging the time of nut and bolt loosening.

In order to solve this problem, scientists all over the world have done a lot of experiments and researches. Finally, they broke through the usual ways of increasing "preload" and "friction force" to achieve anti loosing effect. Instead, they combined "lifting tension" and "friction force" with "geometric wedge angle". This principle is not only used in gaskets, but also in nuts In order to solve the problem of fastener looseness in heavy industry enterprises and the tedious installation, it is not necessary to refer to the screw in torque and screw out torque.

Nord-lock gasket anti loose principle:
1. The installation of the lock washer is very simple. Just put the inner bevel tooth surface of the two washers opposite and place them between the nut and the connecting material. The metal connection material of the lock washer is radial convex on the outside of the nut.
2. After the nut is tightened, the radial convex surface on the outer side of the washer is occluded with the contact surface at both ends, and the slope angle of the bevel tooth surface inside the washer is greater than the screw thread angle of the bolt.
3. When the bolt is elongated due to mechanical vibration, the nut will rotate and loosen. However, the friction force of the radial convex surface on the outer side of the lock washer is greater than that between the inner helical tooth surfaces, so only the relative dislocation between the inner helical tooth surfaces is allowed to produce lifting tension
under this condition. The bolt is elongated and contracted.
4. When the bolt shrinks, the bevel face of the washer will return the nut to its original position.
5. Lock washers are only suitable for flat and smooth metal surfaces.
6. If the connection material is non-metallic, a metal plate can be fixed to the connection material so that the lock washer can be used.
7. A torque wrench is not required to install the lock washer.
8. Pneumatic tools can also be used when installing or removing the lock washer.

The nord-lock lock lock washer supplied by Qingdao Sured Trade Co., Ltd. is strictly inspected and approved. The original manufacturer's Supply Certificate and product material report can be provided. The company has won the trust of customers with its high quality products and fast and perfect service. Customers who need to contact us at any time.

Sured official website: www.isured.net
Service telephone: 400-678-6377
Email: service@sured.net