Spring Design
Design information for engineers, such as spring calculation formulas,
which are the basis of spring design, can be found here.
- Tokai Spring HOME
- Spring Design
- Volute Springs: Calculation Examples
Volute
Springs
1.Specifications of Volute Springs
| Element | 記号と値 |
|---|---|
| Plate thickness | t30 |
| Plate width | b220 |
| Inner diameter | Di100 |
| Outer diameter | Do340 |
| Free height | L0300 |
| Number of active coils | n2.5 |
| Total number of coils | nt4 |
| Upper-end coil | Ng0.75 |
| Lower-end coil | Ng0.75 |
Table 2. Transverse elastic modulus: G（N/m㎡）
2.Numerical Values Required for Calculation
①Gaps between plates
②Maximum effective radius
③Minimum effective radius
④Pitch angle
⑤Coefficient determined by t/b
⑥Transverse elastic modulus
⑦Spring constant
3.Spring Characteristics When the Spring Starts Reaching the Point Where the Horizontal Spacing between Adjacent Plates Becomes 0
4.Deflection and Stress at P = 300,000 N
