Wave Springs and Spiral Retaining Rings are prefect parts for limited space and high dynamic load applications. They are made from coiled flat wire with waves added to give it a spring effect. Wave springs are superior to coil springs in certain applications because they provide lower work heights with the same force. This not only provides for space savings, but also smaller assemblies that use less materials, hence lower production costs. Single turn wave springs are ideal for short deflection applications where space is minimal. Multi turn wave springs are used for low force applications with large deflections: more turns equals less force. Circlips and retaining rings provide a compact and practical design and, unlike threaded alternatives, significantly reduce production costs. SD Products Ltd offers a wide selection of circlips, wave springs and retaining rings manufactured from carbon and stainless steel. Special materials like inconel, elgiloy, hastelloy, beryllium copper, phosphor bronze.