Conical Springs
| Part Number | Big Outer ø | Small Outer ø | Wire ø | Unloaded Length | Force at 0,5 Lo | Block Length | Force at Block Length | Spring Rate | Material | Stock | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Da1 | Da2 | d | L0 | F1 | Lc | Fc | c | Available | |||||
| [mm] | [mm] | [mm] | [mm] | [N] | [mm] | [N] | [N/mm] |
|
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| 0A720-040-050 | 18.29 | 11.13 | 1.02 | 12.7 | 10.54 | 2.04 | 17.7 | 1.660 | 1.4310 |
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Details | ||
| 0A720-040-062 | 18.29 | 9.53 | 1.02 | 15.88 | 10.9 | 2.04 | 18.99 | 1.370 | 1.4310 |
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Details | ||
| 0A720-040-075 | 18.29 | 8.71 | 1.02 | 19.05 | 12.28 | 2.04 | 21.88 | 1.290 | 1.4310 |
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Details | ||
| 0A720-040-100 | 18.29 | 7.14 | 1.02 | 25.4 | 14.72 | 2.04 | 27.04 | 1.160 | 1.4310 |
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Details | ||
| 0A720-042-062 | 18.29 | 9.53 | 1.07 | 15.88 | 14.46 | 2.14 | 25 | 1.820 | 1.4310 |
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Details | ||
| 0A720-042-075 | 18.29 | 8.71 | 1.07 | 19.05 | 15.3 | 2.14 | 27.18 | 1.610 | 1.4310 |
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Details | ||
| 0A720-042-100 | 18.29 | 7.14 | 1.07 | 25.4 | 18.64 | 2.14 | 34.12 | 1.470 | 1.4310 |
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Details | ||
| 0A720-045-050 | 18.29 | 9.53 | 1.14 | 12.7 | 17.3 | 2.28 | 28.33 | 2.720 | 1.4310 |
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Details | ||
| 0A720-045-062 | 18.29 | 8.71 | 1.14 | 15.88 | 19.35 | 2.28 | 33.09 | 2.440 | 1.4310 |
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Details | ||
| 0A720-045-075 | 18.29 | 7.14 | 1.14 | 19.05 | 21.48 | 2.28 | 37.76 | 2.250 | 1.4310 |
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Details | ||
| 0A720-049-037 | 18.29 | 9.53 | 1.24 | 9.53 | 21.53 | 2.48 | 31.8 | 4.520 | 1.4310 |
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Details | ||
| 0A720-049-050 | 18.29 | 8.71 | 1.24 | 12.7 | 25.49 | 2.48 | 40.97 | 4.010 | 1.4310 |
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Details |
Compressing a Conical Spring
Conical springs are designed with a spring rate i.e. the pitch is variable. The solid height is much shorter than that of compression springs. In the case of spring deflection, the solid height is determined by winding up to a maximum of 2 wire diameters.
Spring Rate
Each of our conical springs has a changing pitch which results in a longer part of the linear spring rate. Conventional conical springs usually have a constant pitch which results in a progressive spring rate.
Material
Material Number |
Material Description |
Modulus of Rigidity G [N/mm²] |
Young's Modulus E [N/mm²] |
Tensile Strength RM N/mm2 |
Tmax [°C] |
Use |
| 1.4310 | X10CrNi18-8 (V2A) | 73000 | 187500 | 1300-2600 | -200 until +250 | Stainless steel for the most common applications suitable for seawater resistant slightly magnetic a humid environment, but not due to work hardening |
End shape and spring coil direction
The ends are laid out and not ground. The springs are righ-hand coiled.
Conical Spring Applications
Conical springs are frequently used in battery contacts.