ISO 19690-1:2017

INTERNATIONAL ISO
STANDARD 19690-1
First edition
2017-03
Disc springs —
Part 1:
Calculation
Ressorts à disques —
Partie 1: Calcul
Reference number
ISO 19690-1:2017(E)
©
ISO 2017

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ISO 19690-1:2017(E)

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ISO 19690-1:2017(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units . 1
5 Dimensions and designation . 3
5.1 General . 3
5.2 Disc spring groups . 3
5.3 Dimensional series . 4
6 Design formulae for springs . 4
6.1 General . 4
6.2 Test load . 4
6.3 Coefficients used in calculation . 4
6.4 Spring load . 5
6.5 Design stresses . 5
6.6 Spring rate . 6
6.7 Energy capacity of springs . 6
7 Load characteristics . 6
7.1 Load characteristics for a single disc spring . 6
7.1.1 Load/deflection curve .
...