Examples of Nominal rim diameter in a sentence
Numbers corresponding to both types of measurements may be used in the designation.2.21.3.1. The values of the “d” symbols expressed in millimetres are shown below: Nominal rim diameter code (d)Value of the “d” symbol expressed in mm82039229102541127912305133301435615381164061743218457194832050821533 2.22.
Radial and diagonal constructionsTyre-size designation (+) Measuring rim width code Nominal rim diameter d (mm) Outer diameter D (mm) Section width S (mm) Radial Diagonal Radial Diagonal Std.
Table DCode designated tyres for special services Diagonal and radial Tyre size designation Measuring rim width code Nominal rim diameter d (mm)Outer diameter D (mm) (1) Section width S (mm) (2)(1) Coefficient ‘b’ for the calculation of Dmax: 1,06.Category of use: special (a) Traction tread (b) Heavy tread(2) Overall width may exceed this value up to +8 per cent.
Wheel dimensions Nominal rim diameter, nominal rim width and nominal inset of ECE- approved wheels shall be the same as an OE-wheel within the range of the vehicle type approval.
Table BTyres for light commercial vehicles (high flotation tyres)Diagonal and radial Tyre size designation (1) Measuring rim width code Nominal rim diameter d (mm)Outer diameter D (mm) (2) Section width S (mm) (3)(1) Tyres in Radial construction are identified by the letter ‘R’ in place of ‘-’ (e.g. 24×7.50 R 13LT).(2) Coefficient ‘b’ for the calculation of Dmax: 1,07.(3) Overall width may exceed this value up to +7 per cent.
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Category of use: Normal Service tyres: (a) Highway tread (b) Heavy tread.(3) Overall width may exceed this value up to +6 per cent.Table DCode designated tyres for special services Diagonal and radial Tyre size designation Measuring rim width code Nominal rim diameter d (mm)Outer diameter D (mm) (1) Section width S (mm) (2)(1) Coefficient ‘b’ for the calculation of Dmax: 1,06.Category of use: special (a) Traction tread (b) Heavy tread(2) Overall width may exceed this value up to +8 per cent.
Appendix 1 SPEED SYMBOL TABLE Appendix 2 LOAD INDEX (LI) AND EQUIVALENT LOAD CAPACITY TABLE Appendix 3 NOMINAL RIM DIAMETER CODE TABLE Nominal rim diameter code ("d" symbol)Value of the "d" symbol expressed in mm RELATION BETWEEN THE PRESSURE INDEX (‘PSI’) AND THE UNITS OF PRESSURE(kPa) Appendix 5 VARIATION OF LOAD CAPACITY WITH SPEED COMMERCIAL VEHICLES TYRES 1/ The load capacity indices refer to a single operation.2/ Load variations are not allowed for speeds above 160 km/h.
Table CCode designated tyres mounted on 5° tapered or flat base rims Diagonal and radial Tyre size designation (1) Measuring rim width code Nominal rim diameter d (mm)Outer diameter D (mm) (2) Section width S (mm) (3)(1) Tyres in Radial construction are identified by the letter ‘R’ in place of ‘-’ (e.g. 6.50 R 20).(2) Coefficient ‘b’ for the calculation of Dmax: 1,06.