ISO 4250-1:2017
Earth-mover tyres and rims — Part 1: Tyre designation and dimensions
ISO 4250-1:2017 specifies designations and dimensions for earth-mover tyres and gives the recommended rims primarily intended for earth-moving machinery as defined in ISO 6165.
The ISO 4250 series consists of three parts which specify the technical elements relating to designation and dimensions of tyres and rims for earth-movers; it also gives load tables for these tyres.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Tyre designation
4.1 General
4.2 Tyre size and construction
4.2.1 General
4.2.2 Nominal section width
4.2.3 Nominal aspect ratio
4.2.4 Tyre construction code
4.2.5 Nominal rim diameter code
4.2.6 Tubeless tyres
4.3 Index of tyre strength
4.3.1 General
4.3.2 Diagonal tyres
4.3.3 Radial tyres
4.4 Operating condition
4.4.1 General
4.4.2 Load index
4.4.3 Speed symbol
4.4.4 Usage
4.5 Other service characteristics
4.5.1 Preferred direction of rotation
4.5.2 Code for usage
4.5.3 In-service dimensions
5 Tyre dimensions
6 Dual spacing
7 Approved rims
8 Method of measurement of tyre dimensions
Bibliography
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Tyre designation
4.1 General
4.2 Tyre size and construction
4.2.1 General
4.2.2 Nominal section width
4.2.3 Nominal aspect ratio
4.2.4 Tyre construction code
4.2.5 Nominal rim diameter code
4.2.6 Tubeless tyres
4.3 Index of tyre strength
4.3.1 General
4.3.2 Diagonal tyres
4.3.3 Radial tyres
4.4 Operating condition
4.4.1 General
4.4.2 Load index
4.4.3 Speed symbol
4.4.4 Usage
4.5 Other service characteristics
4.5.1 Preferred direction of rotation
4.5.2 Code for usage
4.5.3 In-service dimensions
5 Tyre dimensions
6 Dual spacing
7 Approved rims
8 Method of measurement of tyre dimensions
Bibliography