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    Home > Product > RF Antenna & Spring > Springs
     
 [Spring]//[Compression Spring]//[Extension Spring]//[Torsion Spring]//[Leaf Spring]//[Wire Forming]//[Battery Spring]

Extension springs

   Extension springs are designed to absorb and store energy creating a resistance to a pulling force.  

    All coils are active in an extension spring, and it is initial tension that hold the coils tightly together.

Extension Spring Photo(s)

 

Spring Shape

   Hook type at either end

.

Working Extent

    Available wire diameter: ø0.1mm ~  ø4mm.

Usage

    Car, Industrial machine, Brake, Absorber, Steering, Door Hinge, Transmission,

     Agricualtural machine, Heavy equipment

Spring Design Formulation

 

Basic Formula of Spring Design 

Material G value f/ E value f/
 
Hard Drawn Steel Wire 8 X 21 X
 

Piano string

8 X 21 X
 
Oil temper string 8 X 21 X
 
Stainless steel string STS 302 7.0 X 18.5 X
STS 304
STS 316
STS 321 JI 7.5 X 20 X
 
Brass string 4 X

10 X

 
Nickel Silver Wire 4 X 11 X
 
Phosphor Bronze Wire 4.3 X 11 X
 
Beryllium copper string 4.5 X 12 X

 


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