Slotted Spring Washer

A slotted spring washer, also known as a split spring washer or a split lock washer, is a type of washer used in fastening applications to prevent nuts and bolts from loosening due to vibration or other factors. Here are some key features and considerations regarding slotted spring washers:

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Key features include:

Design:

Slotted spring washers have a helical or conical shape with a slot or gap cut into the circumference.
The slot imparts a spring-like quality to the washer, allowing it to compress slightly when pressure is applied.

Function:

The primary function of slotted spring washers is to provide a preload or tension on the fastener assembly, helping to prevent the nut or bolt from loosening.
When the fastener is tightened, the slotted spring washer compresses, creating a spring force that maintains tension.

Materials:

Slotted spring washers are typically made from spring steel or other materials with suitable elasticity and strength.

Applications:

Commonly used in applications where maintaining tension is crucial, such as in machinery, automotive, construction, and various other industries.
Often employed in conjunction with bolts and nuts in situations where vibration or dynamic forces may cause standard fasteners to come loose.

Installation:

Slotted spring washers are installed between the nut or bolt head and the mating surface.
The slot should be positioned in such a way that the ends of the washer can exert spring force against the nut or bolt.

Variations:

There are variations of slotted spring washers, including internal tooth lock washers and external tooth lock washers, where teeth are designed to grip the nut or bolt.

Considerations:

Proper sizing is important to ensure that the slotted spring washer fits the specific fastener size.
Over-tightening should be avoided, as excessive pressure may reduce the effectiveness of the spring action.

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