ISO 18137:2015
Leaf springs — Technical specifications
ISO 18137:2015 specifies the technical specifications for leaf springs.
ISO 18137:2015 is applicable to leaf springs for road vehicle (hereinafter simply "springs"). The leaf springs for other vehicle may refer to this International Standard.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Spring types
6 Technical requirements
6.1 Materials
6.2 Tolerances of spring dimensions and shapes
6.2.1 Span
6.2.2 Assembled spring width
6.2.3 Spring end width
6.2.4 Eye inner diameter and bush inner diameter
6.2.5 Flank bending
6.2.6 Perpendicularity and parallelism of the spring eye
6.3 Requirements for characteristic
6.3.1 Spring rate
6.3.2 Design camber
6.3.3 Fatigue
6.4 Requirements for manufacturing
6.4.1 Hardness
6.4.2 Decarburization
6.4.3 Shot peening
6.4.4 Presetting
6.4.5 Lubricant and surface protection
6.4.6 Surface conditions
7 Designation
Annex A (informative) Test methods of leaf springs
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Spring types
6 Technical requirements
6.1 Materials
6.2 Tolerances of spring dimensions and shapes
6.2.1 Span
6.2.2 Assembled spring width
6.2.3 Spring end width
6.2.4 Eye inner diameter and bush inner diameter
6.2.5 Flank bending
6.2.6 Perpendicularity and parallelism of the spring eye
6.3 Requirements for characteristic
6.3.1 Spring rate
6.3.2 Design camber
6.3.3 Fatigue
6.4 Requirements for manufacturing
6.4.1 Hardness
6.4.2 Decarburization
6.4.3 Shot peening
6.4.4 Presetting
6.4.5 Lubricant and surface protection
6.4.6 Surface conditions
7 Designation
Annex A (informative) Test methods of leaf springs