Brass Flat Washer Kit,Aluminum Washers Bulk

Fixing screws are an important part of all types of mechanical joints. Including the use of Bowed Spring Washers to prevent relaxation, there are many ways to prevent bolts from loosening in life. A bowed Spring Washer is often called a spring washer in the spiral washer industry. So why is that used so often? This must be in terms of the function and principle of the spring washer.

The function of the Bowed Spring Washer

The basic function of the spring washer is to increase the strength of the nut after tightening the nut and to increase the friction between the nut and the bolt. This is an additional protective means to prevent the relaxation of the fixing screw caused by the vibration of the working machine.

Locking principle of Bowed Spring Washer

The loosening and stopping principle of the Bowed Spring Washer is that after the spring washer is flattened, the spring washer generates a certain spring force, to maintain the friction between the screw connection part of the nut and the bolt, to prevent the loosening of the nut. At the same time, the acute angle part of the opening part of the Bowed Spring Washer is respectively embedded in the surface of the bolt and the connecting part, to prevent the bolt from rotating to the connecting part.

However, although the spring seat gold can only provide a spring force of 10N / M, it has been proved that the spring force of 10N / M can ignore the bolt preload torque of 280N / M. Second, this small force is not enough to enable the acute corner of the cut part of the Bowed Spring Washer to be embedded in the bolt to engage the surface of the component. After disassembly, there is no obvious interface on the surface of bolts and connecting parts. Therefore, the spring washer has the effect of loosening the screw.

From the perspective of the function and principle of the Bowed Spring Washer, it is not a good way to prevent the spring washer from loosening or to find an ideal method to prevent the increase of friction resistance force.

What is the purpose of the Bowed Spring Washer installation?

The difference between the spring washer at the bolt end and the nut end is that the spring washer at the bolt end prevents the bolt from loosening, and the Bowed Spring Washer at the nut end prevents the nut from loosening.

The purpose of installing the spring washer is to prevent looseness of bolts and nuts, to make the equipment unusable, or cause equipment or personal accidents.

Generally, the Bowed Spring Washer only puts the nut end, not the bolt end, to prevent the nut from loosening when the workpiece vibrates.

Unless the bolt is directly screwed on the workpiece, it is possible to put the Bowed Spring Washer on the bolt end to prevent the bolt from falling.

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