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What is the difference between coil spring and wave spring?

2025-03-11

Difference Between Coil Springs and Wave Springs

FeatureCoil SpringWave Spring
DesignHelical wound wire forming a spiral shapeFlat wire coiled into multiple waves per turn
Load HandlingAxial load distribution over a larger spaceCompact axial load handling with fewer turns
Space EfficiencyRequires more height for the same deflectionProvides the same force in a smaller space
Force DistributionUniform throughout the coilsConcentrated at wave peaks and valleys
Deflection RangeLonger working rangeShorter but efficient working range
Common MaterialsRound wire (steel, stainless steel, alloy)Flat wire (carbon steel, stainless steel, special alloys)
ApplicationsSuspension systems, industrial machinery, aerospace, medical devicesAutomotive, aerospace, medical devices, robotics, seals

Key Takeaways:

  • Wave springs are more compact, making them ideal for applications with limited space.
  • Coil springs offer greater deflection, making them better suited for applications requiring high elasticity.
  • Wave springs provide the same force with fewer coils, reducing material usage and weight.

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