ISO 19690-2:2018
(Main)Disc springs — Part 2: Technical specifications
Disc springs — Part 2: Technical specifications
This document specifies two different grades of disc springs. Grade A defines basic requirements of disc springs for static applications with low and moderate performance. Springs manufactured according to Grade A are not used for dynamic applications. Grade B defines requirements on disc springs especially used for dynamic applications and high performance static applications. Disc springs according to Grade B ensure a better quality by higher demands on manufacturing processes and tolerance requirements. Grade B includes graphs showing the guaranteed fatigue life such as a function of stress.
Rondelles ressorts — Partie 2: Spécifications techniques
General Information
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 19690-2
First edition
2018-09
Disc springs —
Part 2:
Technical specifications
Ressorts à disques —
Partie 2: Spécifications techniques
Reference number
ISO 19690-2:2018(E)
©
ISO 2018
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ISO 19690-2:2018(E)
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© ISO 2018
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ii © ISO 2018 – All rights reserved
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ISO 19690-2:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and units . 2
5 Dimensions and designation . 3
5.1 General . 3
5.2 Disc spring groups . 5
5.3 Dimensional series . 5
6 Grade A — Basic performance requirements for static applications .5
6.1 Material . 5
6.2 Manufacturing process. 5
6.3 Permissible stresses . 6
6.4 Presetting . 6
6.5 Surface condition and corrosion protection . 6
6.6 Tolerances . 7
6.6.1 Thickness . 7
6.6.2 External- internal diameter and coaxiality . 7
6.6.3 Free height. 8
6.6.4 Spring load .
...
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