What is a Belleville washer used for?

Belleville Washers are often used to solve vibration, thermal expansion, relaxation and bolt creep problems.

Why is it called a Belleville washer?

The Belleville spring is named after its founder, Julian F. Belleville, around the mid 19th century. They were designed to take on really heavy loads, with the steel that is used to make them. Belleville designed the washer to be a spring as well.

Are Belleville washers linear?

Belleville washers and disc springs exhibit low deflections relative to high loads. The relationship between the load and deflection is non-linear, particularly as load increases.

Where can you use Belleville washers?

Belleville washers are typically used in conditions of high current loading or cycling. They are used to absorb vibration and can maintain preload in bolted joints, indicating correct preload based on the gap between adjacent washers. They can also help with “bolt creep” or stress relaxation between a bolt and washer.

What is a Bellevue washer?

Also known as a disc spring or cupped spring washer, a Belleville washer is a unique washer-style fastener that’s characterized by a cupped construction. As shown in the image here, Belleville washers don’t lie flat. Rather, they feature a canonical shape in which the inner portion is higher than the lower portion.

Can you reuse Belleville washers?

Yes, Belleville conical washers can be reused, repeatedly, as long as they are not damaged. Overloading and over-torquing these washers can wear them out over time. As long as they are used properly and checked before reuse, these fasteners can be used again and again to complete projects.

How does a Belleville spring work?

The purpose of a Belleville washer is to absorb loads by acting as a spring. When a load is applied a Belleville washer, the washer compresses. At the same time, the Belleville washer exerts an equal amount of force against the object.

Are Belleville springs linear?

Spring Belleville Washers (continued) At a free height to thickness ratio of around 0.4 or less, the force-deflection curve is approximately linear, as seen in the curves for h/t ratios of 0.2 and 0.4.

Are Belleville washers reusable?

Which way do conical washers go?

does it matter which way the washer goes on to the bolt? Expert Reply: Yes, the conical tooth washer needs to be positioned so that the teeth face the hitch. That is what prevents it from coming loose.

Is a Belleville washer a lock washer?

They can also help with “bolt creep” or stress relaxation between a bolt and washer. However, one feature Belleville washers are unable to provide is significant locking capacity in bolted applications because of a lack of serrations.