A wave spring is a thin, ring-shaped elastic metal component consisting of multiple peaks and valleys. It is widely used in aerospace, precision machinery, hydraulic sealing, high-end motors, and other fields. Before using the spring, users should first have a certain understanding of its function, which can ensure that the spring can fully exert its effect. So, what are the functions of a wave spring?
1. Measurement function
We know that within the elastic limit, the extension of a spring is directly proportional to the applied force. Spring scales are made by utilizing this property of springs.
2. Reset function
When a spring is deformed under external force, it can return to its original state once the force is removed. Many tools and devices utilize this property of springs to reset. For example, many building doors are equipped with reset springs on their hinges, so that the doors automatically return to their original position after people enter or exit. This feature has also been utilized to create automatic umbrellas, mechanical pencils, and other convenient products.
3. Driving function

4. Buffering function
Springs are installed between the frame and wheels of locomotives and cars, utilizing their elasticity to mitigate vehicle bumps.
5. Sound emitting function
When air flows through the reed holes in a harmonica or an accordion, it strikes the reeds, causing them to vibrate and produce sound.
6. Compression function
Observing various electrical switches, it is evident that one of the two contacts of the switch must be equipped with a spring to ensure that the two contacts are in close contact and provide good conductivity. If there is poor contact, the resistance at the contact point increases, and the heat generated when current passes through increases. In severe cases, the metal at the contact point may melt. The two metal posts of the bayonet lamp cap are also equipped with springs to ensure good contact; as for the central metal piece of the screw lamp cap and all the metal plugging pieces of the socket, they are all spring pieces, whose function is to make both sides in close contact to maintain good conductivity. In cassette tapes, there is a phosphor bronze spring piece that uses the elastic force generated during its bending deformation to make the magnetic head closely contact the magnetic tape. In a stapler, there is a long spiral spring whose function is, on one hand, to push the staples tightly, and on the other hand, when the frontmost staple is pushed out, it can send the following staples to the frontmost position for easy pushing out. In this way, it can automatically push each staple to the frontmost position until all staples are pushed out.
The above introduction covers the various functions of wave springs. If you would like to inquire about more products, please contact us by phone. Our factory will provide you with more and better services with high-quality spring products, excellent service, and competitive prices!