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Wave Springs

 

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A wave spring is 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.

 

Rotor Clip coils pre-tempered flat wire made from rolled round wire as raw material. The on-edge-coiling process creates a circle with one or more turns to specifications in any diameter and any number of specific designed waves.

 
   
  Advantage of Flat Wire Wave Springs

 

 

 

  • Space saving in axial direction – 50% of the operating height could be reduced
  • Bending load in the waves guarantees 100% axial transmission of load
  • Only one spring must be handled comparing to stacked disc springs / wave washers
  • Space saving in radial direction compared to disc springs
  • Single turn wave spring offers “cling in bore” option--spring is fixed and centered by itself
  • “Cling on shaft” as assembly help option
  • Low load tolerance at specified work heights
  • More accurate spring rate and loads which could be better toleranced than 50% tighter than stamped wave washers or disc springs
  • Unlimited range of forces could be created by using the factors wire size, wire form, no. of turns, turn configuration, no. of waves and wave form

 

  Flat Wire Wave Springs versus Conventional Stampings
 
 
  • No material waste compared to stamped parts
  • Rolled flat wire features edges with a radius—NO DAMAGE TO SHAFT/BORE
  • No stamping burrs eliminates the grinding process
  • No stamping through the metal grain--microstructures remain intact
  • Microstructure offers better strength because the line of force in circumferential direction is not disturbed; risk of fatigue cracking and inconsistent loading in a lot is minimized
 

Wave Spring Types

     
 

Multi Turn Wave Springs

Light (WSL) / Medium (WSM) / Heavy (WSR)

 
 
 

Multi Turn Wave Spring
Plain Ends

Multi Turn Wave Spring
Shim Ends

 

 

 

•Decreasing spring rate is proportional to the number of turns:
More turns equals less force.
•Used for low force applications with large deflections.
•Utilizes nearly 1/2 the space as helical compression springs while producing the same force.

 

 

Single Turn Wave Springs

Gap Single Turn/Overlap Single Turn Standard Inch (SST) / Narrow Inch (NST) / Metric (MST)

     
 

Single Turn Wave Spring - Gap

Single Turn Wave Spring - Overlap

 

• Ideal for short deflection applications with low to medium forces.
• Offered in a number of waves and material thicknesses.
• Designed for a wide range of bore and rod diameters.

• Ideal for:

  1. Narrow radial wall dimensions
  2. Light duty applications
  3. Low clearance applications
  4. Ball or roller bearing applications
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