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Spring washers are disks of metaled that are formed in an irregular shape so that when the washer is loaded it deflects, acts like a spring, and provides a preload between two surfaces. Â Spring washer types include adjustable spacers, Belleville washers, bowed or curved washers, conical washers, finger washers, and wave washers. Spring washers are typically used in applications where assemblies need a part to take up play, eliminate rattle, maintain assembly tension, compensate for expansion or contraction in materials after assembly, or to absorb intermittent shock loads and provide a controlled reaction under dynamic loads.
Spring washer in the screw industry, often called spring pad. It is made of stainless steel and carbon steel, and carbon steel is iron. The spring washer sizes usually used with M3, M4, M5, M6, M8, M10. M12, M14, M16. These specifications are commonly used. Spring washer national standard GB/T 94.1-87, the standard specification is 2-48mm standard spring washer. Spring washers are circular washers, which are pre-formed with smooth flowing undulations. This technique then creates a final washer with spring properties when compressed.
Split or slotted spring washers can also be produced with materials that range from spring and stainless steel to copper and nickel alloys.
Spring washer standard
Standard spring washer (gb93-1987)
Light spring washer (gb859-1987)
Heavy duty spring washer (gb7244-1987)
Saddle spring washer (GB/T 7244-1987)
Saddle spring washer (GB/T 860-1987)
Corrugated spring washer (GB/T 7246-1987)
Corrugated spring washer (GB/T 955-1987)
Spring washer vs washer
The spring washer (also known as the spring washer) has pretension and recoil after compression. In practical use, the characteristics of the thread make it easy to rotate the nut along the direction of the thread after tightening, leading to the loosening of the nut.
The ordinary washer (also called round hole washer or flat washer or ordinary washer) is a support under the pretension of the spring washer, which increases the area under the pretension of the spring washer.
Generally speaking, spring washer and common washer are used together, it is unreasonable to use common washer alone.