**Related Resources: calculators**

### Torsion Spring Arc Length Formula and Calculator

**Manufacturing Processes and Design
Spring Design and Engineering **

**Torsion Spring Arc Length Formula and Calculator **

Arc Length of torsion spring formula;

*l*_{a} = *( π · r _{} · α ) / 180° *

*or*

*l*_{a} = *( π · d _{} · α ) / 360° *

Where:

*l*_{a} = arc length,

*r* = radius,

*D* = diameter

*α* = angle at center

References:

Mechanical and Metal Trades Handbook, 2nd Edition

2010

Ulrich Fischer, Roland Gomeringer, Max Heinzler, Roland Kilgus, Friedrich Naher, Stefan Oesterle, Heinz Paetzold, Andreas Stephan

Related:

- Spring Helix Wire Length Formula and Calculator
- Equal Spacing Formulas and Calculator
- Sprocket Chain Length Formulae and Calculator
- Length and Equivalents Conversion Calculators
- Minimum Length of Thread Engagement Formula and Calculations Per FED-STD-H28/2B
- Rods Units Length Conversion Calculator
- Ladle Shape Formed Center Line Length Equation and Calculator
- Vee Wing Formed Rebar Center Line Length Equation and Calculator
- Open Rectangle Offset Formed Rebar Center Line Length Equation and Calculator
- Multiple Bends Formed Re-bar Center Line Length Equation and Calculator
- Rectangle with Chamfer Center Line Length Equation and Calculator
- Channel Flanged Formed Rebar Center Line Length Equation and Calculator