Curved Wave Washers, often referred to as wave spring washers, are specially formed washers designed with a wavy or curved shape that enables them to provide a flexible preload between two surfaces. Their spring-like characteristics allow for controlled compression, making them ideal for absorbing shock, compensating for thermal expansion, and maintaining load or tension in bolted assemblies.

Unlike flat washers, wave washers generate light to moderate loads in limited axial spaces, making them suitable for compact applications where space is constrained. They are commonly used in electrical contacts, bearing assemblies, and lightweight mechanical joints, offering effective damping and tension control.

Typically manufactured from materials such as carbon steel, stainless steel (302, 304, 316), beryllium copper, and phosphor bronze, these washers are also available with protective coatings like zinc plating, black oxide, or passivation to enhance durability and corrosion resistance.

Standard dimensions often comply with norms like DIN 137 (for curved) and DIN 2093 (for wave types), and they are available in both metric and imperial sizes to suit diverse industrial needs.