Tension
Customer input field
HELP Show description
Blank Display after calculation
How to use the page
 
Calculated after entering a number
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Clear numbers

Dimension input field HELP
Material HELP
Wire diameter d mm HELP
Center diameter D mm HELP
Active coils N Coils HELP
Free length H
(Auto calculation if blank)
mm HELP
Spring constant
Calculate automatically
N/mm
The initial tension is calculated as 0 N.
The calculable free length is up to 700 mm.
  Please consult us if it exceeds 700 mm.
If you need a length longer than the free length of calculation, set the pitch
 It can be adjusted by opening it or lengthening the hook.
 
Load/Static stress characteristics field
  Load P(N) input Spring usage range Coil shear stress(N/mm2) Tensile stress of hook  
Height(mm) Deflection(mm) τ τ0 σ Pass/fail
First load HELP
Second load HELP
Third load HELP
Fourth load HELP
Free state

Required spring constant N/mm HELP
Back calculation result column
Back calculation wire diameter mm
Back calculation center diameter mm
Back calculation active coils Coils
 

Fixed basic specifications
Outer diameter mm Bending R mm Coil part Maximum using stress N/mm2
Inner diameter mm Coil part contact height mm Hook part Maximum using stress N/mm2
D/d Hook length on one side mm
Regarding the shape
advice
Active coils N
Active coils N
D/d
Regarding stress
advice
Coil shear stressτ0 (First load)
Coil shear stressτ0 (Second load)
Coil shear stressτ0 (Third load)
Coil shear stressτ0 (Fourth load)
Tensile stress of hook (First load)
Tensile stress of hook (Second load)
Tensile stress of hook (Third load)
Tensile stress of hook (Fourth load)

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