Thickness of spring [t]
Outside diameter of spring [Dz]
Inside diameter of spring [Dw]

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Total lenght / height [L₀]
The height of spring under burden F1 [L1]
The burden of spring [F1]

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The largest deflectior spring [fmx]
Burden near the largest deflectior [Fmx]

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Internal height of cone [ho]
Width of resistory surfaces [b]