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Shigley's 11th Ed | SMI Handbook | Wahl, Mechanical Springs
Compression (Round)
Compression (Rect)
Extension
Torsion
Material
Wire diameter d
in
Outer diameter OD
in
Free length Lf
in
Total coils Nt
End type
Closed/Ground
Closed
Open/Ground
Open
Load 1 force
lbf
Load 2 force
lbf
Max travel
in
Advanced options
Condition
MTS override
psi
Operating temperature
°F
Shot peened
Buckling end condition
Both fixed
One fixed / one pivoted
Both pivoted
One clamped / one free
Hole / bore diameter
in
Calculate
Material
Wire width b
in
Wire thickness t
in
Outer diameter OD
in
Free length Lf
in
Active coils Na
Winding
Edge-wound
Flat-wound
Load 1 force
lbf
Load 2 force
lbf
Max travel
in
Advanced options
Condition
MTS override
psi
Operating temperature
°F
Shot peened
End type
Closed/Ground
Closed
Open/Ground
Open
Buckling end condition
Both fixed
One fixed / one pivoted
Both pivoted
One clamped / one free
Calculate
Material
Wire diameter d
in
Outer diameter OD
in
Total body coils Nt
Hook type
Standard Machine Hook
Cross-Over Hook
Initial tension Pi
lbf
Load 1 force
lbf
Load 2 force
lbf
Advanced options
Condition
MTS override
psi
Operating temperature
°F
Shot peened
Calculate
Material
Wire diameter d
in
Outer diameter OD
in
Active coils Na
Arm length
in
Arbor diameter
in
Wind direction
Right-hand
Left-hand
Torque 1
lbf-in
Torque 2
lbf-in
Advanced options
Condition
MTS override
psi
Operating temperature
°F
Shot peened
Calculate
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