Extension spring load calculation program[CLIENT]

The load of the extension spring can be calculated.

Click the button to enter the data into the following form and perform the calculation.

※Enter the value in half-width characters.

Spring calculation
Q&A
Input form
Material
(mandatory)
Some materials are not readily available, so please check when ordering.
Wire diameter mm
(mandatory)
Mean diameter mm
(mandatory)
Above figure:
Number of active turns turns
(mandatory)
Above figure: 5.5 turns
Hook type
(mandatory)
Hook inner diameter (one side) If it is not known, leave it blank.
Calculated based on the inner diameter of the body diameter.
Hook turns (one side) turns If it is not known, leave it blank.
Calculate with one volume.
Hook root inner R If it is not known, leave it blank.
Automatically calculated at wire center R.
Winding direction  
1st load length mm Be sure to recognize the "1st Load length" as the mounting length.
For a single-stage load, enter the nunber in "2nd load length" and leave the field blank for "1st load length"
2nd load length mm
(mandatory)
1st load designation gf
Enter the value in either "1st load designation" or "2nd load designation".
If it's a single-stage load, enter it at "2nd load designation".
2nd load designation gf
*Load tolerances and dimensional tolerances are based on JIS B 2704, JIS B2709.

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