The function of flat washer and spring washer

1. Increase the contact area between the screw and the machine
2. Eliminate the damage of the spring pad to the surface of the machine when unloading the screw. When used, it must be: spring pad and flat pad, flat pad next to the surface of the machine, spring pad between flat pad and nut. The flat pad is to increase the force surface of the screw. In order to prevent the screw from loosening, the spring pad plays a certain amount of cushioning protection when it is stressed. Although flat pads can be made sacrificial pads.
3. But more often it is used as a supplementary pad or flat pressure pad.

Spring washer

1. The function of the spring washer is that after tightening the nut, the spring washer gives the nut an elastic force and closes the nut so that it is not easy to fall off. The basic function of the spring is to give the nut a force after the nut is tightened to increase the friction between the nut and the bolt.
2. Flat pads are generally not used for elastic pads (except to protect the surface of fasteners and mounting surfaces, consider using flat pads and elastic pads).
3. Flat washers are generally used in the connection parts, one is soft texture, the other is hard texture is more brittle, its main function is to increase the contact area, disperse pressure, prevent the soft texture of crushing.

When to use flat pads, when to use elastic pads

1. Under normal circumstances, in the case of relatively small load and no vibration load, only flat pads can be used.

2. In the case of relatively large load and vibration load, it must be combined with flat pad and elastic pad.
3. Spring washers are basically not used alone, they are used in combination.