The Role of Spring Washers

Spring washers are widely used in the load-bearing and non-load-bearing structures of general mechanical products.

Today we will discuss the function and types of lower spring washers.

What is the function of the spring washers?

The basic function of the spring washer is to give force to the nut after the nut is tightened, increasing the friction between the nut and the bolt! That is to say, a protective measure is added to prevent the loosening of the fastening bolts caused by the vibration of the equipment in operation.

Types of spring washers

✔️Internal tooth elastic washer, external tooth elastic washer

There are many sharp elastic warping teeth on the circumference, which are pressed against the supporting surface and can prevent the loosening of the fasteners. The inner tooth elastic washer is used under the screw head with smaller head size; the outer tooth elastic washer is mostly used under the bolt head and the nut. The elastic washer with teeth is smaller than the ordinary spring washer, and the fastener is evenly stressed. But it should not be used for frequent disassembly.

National standard: GB/T 7246-1987 Wave washers are divided into WG type, WL type and WN type

WG-type wave washer: WG-type wave washer is an open-type elastic washer. It can usually be installed in a small space. Its function is to apply prestress to the bearing, reduce the noise of the bearing operation, and improve the running accuracy and stability of the bearing. In addition, there are a large number of applied materials in electronic appliances, such as carbon steel, stainless steel, copper alloy and so on.

The disc spring washer, also known as the Belleville spring washer, was invented by the French Belleville. DIN6796 Disc Spring Washers (HDS Series) are lock washers designed for bolted and screwed connections. It is designed and manufactured according to DIN 6796 for the connection of medium or high strength bolts and screws. The large bearing load and elastic recovery make the HDS series very effective. And the bolt tension can withstand slack due to the following reasons. This includes wear, creep, relaxation, thermal expansion, contraction of consumables, or compression of seals.

Conclusion

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