Wave spring

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A wave spring, also known as coiled wave spring or scrowave spring, is a spring made up of pre-hardened flat wire in a process called on-edge coiling [1] (also known as edge-winding). During this process, waves are added to give it a spring effect. [2] [3] The number of turns and waves can be easily adjusted to accommodate stronger force or meet specific requirements. [2]

Spring (device) elastic device

A spring is an elastic object that stores mechanical energy. Springs are typically made of spring steel. There are many spring designs. In everyday use, the term often refers to coil springs.

Contents

Advantages

A wave spring has advantages over a traditional coiled spring or a washer: [4]

Washer (hardware) thin plate with a hole, normally used to distribute the load of a threaded fastener

A washer is a thin plate with a hole that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. Other uses are as a spacer, spring, wear pad, preload indicating device, locking device, and to reduce vibration. Washers often have an outer diameter (OD) about twice their inner diameter (ID), but this can vary quite widely.

Varieties

Multiple types of wave spring are available: [4] [5] Single-turn wave springs include gap single-turn and overlap single-turn type. Multi-turn wave spring types, include shim-end and plain-end types. The nested wave spring incorporates smaller waves within larger ones.

Single-turn wave spring

Single turn wave spring Single turn wave spring.png
Single turn wave spring

Single-turns are best for applications with short deflection and low to medium forces. The number of waves and material thickness can be changed to accommodate stronger forces. It is used for bearing pre-load. [6] [7]

Multi-turn wave spring

A multi-turn wave spring can decrease the needed axial space. It is suited for applications with large deflection and a small spring rate. A wide range of forces can be accommodated. [8] [9]

Nested wave spring

Eliminates the need to stack springs to accommodate higher loads. It produces high force while maintaining the precision of a circular-grain wave spring. It replaces a stack of belleville washers where a high but accurate force is needed. [5]

Materials

Manufacturers

Citations

  1. "Wave Springs- Advantages".
  2. 1 2 Rotorclip: Advantages
  3. Smalley Steel Ring Company. (2005). Engineering and Parts Catalog. p.7
  4. 1 2 Rotor Clip Company., Inc. (2010). Product Specifications. p. 12.
  5. 1 2 Smalley Steel Ring Company.(2005). Engineering and Parts Catalog. p.14
  6. Rotor Clip Company., Inc. (2010). Company Overview. p.11
  7. Preload
  8. Rotor Clip Company., Inc. (2012). Wave Springs. p.2
  9. Matumura-Kohki Co.,Ltd. (2009).Catalog. p.20
  10. Rotor Clip Company., Inc. (2010). Product Specifications. p. 10 - 11.
  11. 1 2 Smalley Steel Ring Company.(2005). Engineering and Parts Catalog. p.84
  12. 1 2 Rotor Clip Company., Inc. (2012). Wave Springs. p.2.

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