Six ways to prevent the nut from loosening

How to tighten a small nut has always been a long-standing topic in mechanical design. Everyone knows better, such as Japan's eccentric nut, Down's nut and China's self-tightening nut. But today we don't talk about the stars in these fasteners. Let's talk about the most basic way to fix the nut at work. Bailian Hardware rely on years experience and collection information, suggest the most convient ways as below;

1. Flat washer

The washer refers to the part between the connected piece and the nut. Generally, it is a flat metal ring for protecting the surface of the connected member from the nut and the pressure of the dispersing nut against the connected member. So adding a flat washer can be a good way for prevent nut loosing, also washer is much more cheap.

2. Flat washer and spring washer

Spring washers are widely used in the bearing and non-bearing structures of general mechanical products. They are characterized by low cost and easy installation, and are suitable for parts with frequent assembly and disassembly. However, the spring washer has a low anti-loose ability! In this way, we use a flat washer and put a spring washer in the middle, then it can help protect the using.

3. Locking nut

In general, the nut is loosened by vibration or the like during use, such as vibration. In order to prevent this phenomenon, a self-locking nut is invented, like nylock nut. Self-locking nut Its function is mainly anti-loose and anti-vibration.

For special occasions. Its working principle is generally self-locking by friction. Self-locking nuts are classified according to their functions. They are fitted with a nylon ring, a neck with a neck, and a metal anti-loose device. They are all effective torque type locknuts.

But self locking nut also have its own defect, due to its nature, it is difficult to screw

4. Nut Locking fluid

Apply the nut anti-loose solution to the bolt tightening, and then tighten the nut to achieve the anti-loose effect.

5. Double nut (left and right rotation)

It is also a good method to tighten and lock against a left-handed nut and a right-handed nut.

6. Drilling nut and screw, add a Pin for locking.

In machinery, the pin is primarily used for assembly positioning and can also be used as an overload shear connection in a connection and relaxation level safety device. The types of pins are: cylindrical pins, tapered pins, perforated pins, split pins and safety pins.

There are six ways Bailian Hardware checked the good way for prevent nut loosing

If you have more solutions or you have more good way for preventing, welcome to give us your ideas, we will much appreciate.