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Do you know the proper use of the washer do?
Jun 26, 2018

Washer, a type of fastener shaped like a ring, used to support the bolts, screws or nuts in the middle of the connecting surface of the connecting parts, reducing the contact surface area of the connected parts, reducing the pressure per unit area and protecting the surface of the connected parts Damaged effect; spring washers can also play a role in preventing the nut from loosening.

The spring washer is mainly used to prevent looseness. The flat washer does not have a loosening function. That is, the flat washer only increases the contact area, and the spring washer can prevent looseness. For example, the bolts connecting the motor and the base are generally added with spring washers because the motor vibrates, if not Spring washers, nuts will loosen. Spring washers are usually installed on the fasteners on the equipment with vibration. Generally no flat washers are required on the flanges. Flange on the plus no spring washers and the circulation of the medium is related, if it is easy to produce pulses, it is best to add spring washers, as well as high-speed fluid, frequent changes in caliber, do not generalize.

On some valves, the gland flange is required to be filled with spring washers. In short, flat washers are used to increase the tightening contact area; spring washers are used for places with vibrations to prevent looseness; and fastening PVC flanges are not added with spring washers. .

If you know that the main role of the spring washer is to prevent loosening, what are the specific conditions for using the spring washer?

Spring washers are to be used under the following conditions: The spring washers can be used in the following four standards: standard spring washers (GB93-1987), lightweight spring washers (GB859-1987), heavy duty spring washers (GB7244-1987) spring washer hexagonal The slotted nut is designed for use with bolts with holes at the end of the screw so that the split pin can be inserted into the hole of the screw from the slot of the nut to prevent the nut from loosening automatically. It is mainly used in occasions with vibration load or alternating load.

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