Wave spring washers are mainly steel wave springs and multilayer wave springs for single-layer motors. Multi-layer wave springs can also be used between them. This kind of thing is called a multi-layer wave washer. Rings and metal elements with multiple peaks and valleys in each layer are generally used in spacecraft, bearings, flow valves, pressure valves, clutches, vibration isolators, axial piston pumps and drives.
The basic effect of Wave spring washer is to give a force after the screw bolt is tightened. Anti-loosening effect. Add friction between screw bolt and material. Therefore, the material is fastened in the sensation and prevents loosening between the screw bolt and the material. In short, the effect of spring washer is the effect of protective measures.