Because of the special materials and the structure feature, spring has the protection effect. It does elastic deformation with the external load and recovers after unload. Therefore, spring is one of the important protection parts. There are many kinds of spring types, they are classified according to the different standard. Here, this text will introduce the types of spring.
1. According to the received load: extension spring, compression spring, torsion spring, and bending spring.
2. According to the different shape: spiral spring, belleville spring, ring spring, disc spring and blade spring.
3. According to the material: metal spring and non-metal spring.