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GB/T 2977-2024 English PDF (GBT2977-2024)
GB/T 2977-2024 English PDF (GBT2977-2024)
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GB/T 2977-2024: Size designation, dimensions, inflation pressure and load capacity for truck tyres
GB/T 2977-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.160.10
CCS G 41
Replacing GB/T 2977-2016
Size Designation, Dimensions, Inflation Pressure and Load
Capacity for Truck Tyres
ISSUED ON: SEPTEMBER 29, 2024
IMPLEMENTED ON: APRIL 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 6
4 Representation Method of Size Designation ... 6
5 Size Designation, Dimensions, Inflation Pressure and Load Capacity ... 9
Appendix A (informative) Metric Radial Tyres and FRT Tyres of Type C Light Trucks
... 98
Appendix B (normative) Correspondence between Load Index and Load Capacity 109
Appendix C (normative) Correspondence between Speed Symbol and Maximum
Driving Speed ... 110
Appendix D (normative) Provisions on the Calculation and Rounding of Maximum and
Minimum Outer Edge Dimensions of New Tyres ... 111
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement for GB/T 2977-2016 Size Designation, Dimensions,
Inflation Pressure and Load Capacity for Truck Tyres. In comparison with GB/T 2977-2016,
apart from structural adjustments and editorial modifications, the main technical changes are as
follows:
---The size designations of tyres are added (see Table 1, Table 4, Table 6, Table 8 ~ Table
15, Table 17, Table 22 ~ Table 26, Table 28, Table 30, Table 31, Table A.1 and Table
A.2);
---The levels of some size designations of tyres are added (see Table 1, Table 2, Table 4 ~
Table 6, Table 8 ~ Table 11, Table 17, Table 18, Table 22, Table 23, Table 24, Table 26,
Table 28 and Table 31);
---The data of some size designations of tyres, such as: measured rims, new tyre design
dimensions, load capacity, inflation pressure, allowable rims and valve models, etc. is
modified (see Table 4, Table 5, Table 7 ~ Table 10, Table 17, Table 18, Table 19, Table
24, Table 26, Table 27; Table 4, Table 5, Table 9, Table 17, Table 18, Table 24, Table 26
and Table 27 of Version 2016);
---The allowable rims for some tyres are added (see Table 1, Table 2, Table 5 ~ Table 18,
Table 24 and Table A.2);
---The requirements for the maximum outer diameter and the range of maximum outer
diameter used of new tyres for special purposes are added (see NOTE 3 of Table 3,
NOTE 3 of Table 17 ~ Table 19, NOTE 3 of Table 21, NOTE 3 of Table 22 and NOTE
3 of Table 28);
---The NOTE “the rim size designation codes listed in the Table all omit the rim diameter
codes, among which, the measured rims are the recommended rims, and the allowable
rims listed in this Table are other allowable rims except the measured rims” is added
(see NOTE 3 of Table 1, NOTE 5 of Table 3, NOTE 4 of Table 17 ~ Table 19, NOTE
4 of Table 21, NOTE 4 of Table 22 and NOTE 4 of Table 28);
---The reference documents for the size designations not included in the tables are
modified (see NOTE 4 of Table 1, NOTE 5 of Table 3, NOTE 5 of Table 17, NOTE 5
of Table 18, NOTE 5 of Table 19, NOTE 5 of Table 21, NOTE 5 of Table 22, NOTE 5
of Table 28; NOTE 3 of Table 1, NOTE 4 of Table 3, NOTE 4 of Table 17, NOTE 4 of
Table 18, NOTE 4 of Table 19, NOTE 4 of Table 21, NOTE 4 of Table 22 and NOTE
4 of Table 28 of Version 2016);
Size Designation, Dimensions, Inflation Pressure and Load
Capacity for Truck Tyres
1 Scope
This document stipulates the representation method of size designation, size designation and
corresponding dimensions, inflation pressure and load capacity, and other relevant requirements
for truck tyres.
This document is applicable to new pneumatic tyres for trucks.
2 Normative References
The content of the following documents constitutes indispensable clauses of this document
through normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 6326 Tyre - Vocabulary
3 Terms and Definitions
The terms and definitions defined in GB/T 6326 are applicable to this document.
4 Representation Method of Size Designation
4.1 Ultra-light and Light Truck Tyres
Examples of the size designation of ultra-light and light truck tyres are as follows:
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GB/T 2977-2024: Size designation, dimensions, inflation pressure and load capacity for truck tyres
GB/T 2977-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.160.10
CCS G 41
Replacing GB/T 2977-2016
Size Designation, Dimensions, Inflation Pressure and Load
Capacity for Truck Tyres
ISSUED ON: SEPTEMBER 29, 2024
IMPLEMENTED ON: APRIL 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 6
4 Representation Method of Size Designation ... 6
5 Size Designation, Dimensions, Inflation Pressure and Load Capacity ... 9
Appendix A (informative) Metric Radial Tyres and FRT Tyres of Type C Light Trucks
... 98
Appendix B (normative) Correspondence between Load Index and Load Capacity 109
Appendix C (normative) Correspondence between Speed Symbol and Maximum
Driving Speed ... 110
Appendix D (normative) Provisions on the Calculation and Rounding of Maximum and
Minimum Outer Edge Dimensions of New Tyres ... 111
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives
for Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement for GB/T 2977-2016 Size Designation, Dimensions,
Inflation Pressure and Load Capacity for Truck Tyres. In comparison with GB/T 2977-2016,
apart from structural adjustments and editorial modifications, the main technical changes are as
follows:
---The size designations of tyres are added (see Table 1, Table 4, Table 6, Table 8 ~ Table
15, Table 17, Table 22 ~ Table 26, Table 28, Table 30, Table 31, Table A.1 and Table
A.2);
---The levels of some size designations of tyres are added (see Table 1, Table 2, Table 4 ~
Table 6, Table 8 ~ Table 11, Table 17, Table 18, Table 22, Table 23, Table 24, Table 26,
Table 28 and Table 31);
---The data of some size designations of tyres, such as: measured rims, new tyre design
dimensions, load capacity, inflation pressure, allowable rims and valve models, etc. is
modified (see Table 4, Table 5, Table 7 ~ Table 10, Table 17, Table 18, Table 19, Table
24, Table 26, Table 27; Table 4, Table 5, Table 9, Table 17, Table 18, Table 24, Table 26
and Table 27 of Version 2016);
---The allowable rims for some tyres are added (see Table 1, Table 2, Table 5 ~ Table 18,
Table 24 and Table A.2);
---The requirements for the maximum outer diameter and the range of maximum outer
diameter used of new tyres for special purposes are added (see NOTE 3 of Table 3,
NOTE 3 of Table 17 ~ Table 19, NOTE 3 of Table 21, NOTE 3 of Table 22 and NOTE
3 of Table 28);
---The NOTE “the rim size designation codes listed in the Table all omit the rim diameter
codes, among which, the measured rims are the recommended rims, and the allowable
rims listed in this Table are other allowable rims except the measured rims” is added
(see NOTE 3 of Table 1, NOTE 5 of Table 3, NOTE 4 of Table 17 ~ Table 19, NOTE
4 of Table 21, NOTE 4 of Table 22 and NOTE 4 of Table 28);
---The reference documents for the size designations not included in the tables are
modified (see NOTE 4 of Table 1, NOTE 5 of Table 3, NOTE 5 of Table 17, NOTE 5
of Table 18, NOTE 5 of Table 19, NOTE 5 of Table 21, NOTE 5 of Table 22, NOTE 5
of Table 28; NOTE 3 of Table 1, NOTE 4 of Table 3, NOTE 4 of Table 17, NOTE 4 of
Table 18, NOTE 4 of Table 19, NOTE 4 of Table 21, NOTE 4 of Table 22 and NOTE
4 of Table 28 of Version 2016);
Size Designation, Dimensions, Inflation Pressure and Load
Capacity for Truck Tyres
1 Scope
This document stipulates the representation method of size designation, size designation and
corresponding dimensions, inflation pressure and load capacity, and other relevant requirements
for truck tyres.
This document is applicable to new pneumatic tyres for trucks.
2 Normative References
The content of the following documents constitutes indispensable clauses of this document
through normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 6326 Tyre - Vocabulary
3 Terms and Definitions
The terms and definitions defined in GB/T 6326 are applicable to this document.
4 Representation Method of Size Designation
4.1 Ultra-light and Light Truck Tyres
Examples of the size designation of ultra-light and light truck tyres are as follows:
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