Spherical washers are aptly named as they have a spherical shape. They are typically made of materials such as stainless steel or hardened steel. Their design features a concave or convex shape that allows them to fit seamlessly between mating surfaces and maintain even pressure distribution.
These washers are commonly used in applications that require a large bearing span and where vibration or movement might occur. The spherical shape allows the washer to rotate slightly, accommodating any slight deviations or changes in the surface of the material. This assists in ensuring that the joint is not overstressed and that the material does not warp under high stress levels.

Spherical washers are especially helpful in construction when attaching steel beams to concrete or masonry. The washer sits between the beam and the base material, protecting the base material from getting damaged or crushed. It also helps distribute the load evenly and permits some movement between the two materials, aiding in the prevention of cracking in concrete.
One area where spherical washers are increasingly being used is in the construction of bridges. Bridges are subject to significant pressure and tension, and the highly resilient nature of spherical washers allows them to deal with this pressure with ease. These washers help absorb the shock and the impact of traffic and loading conditions on the bridge.
Spherical washers are not only used in construction but also in the aerospace industry, automobile industry, and many other applications that require a reliable and robust component to maintain precision and accuracy in machine systems.