GB/T 2978-2024 轿车轮胎规格、尺寸、气压与负荷

ICS83.160.10

CCSG41

中华人民共和国国家标准

GB/T2978—2024

代替GB/T2978—2014

轿车轮胎规格、尺寸、气压与负荷

Sizedesignation，dimensions，inflationpressureand

loadcapacityforpassengercartyres

2024⁃09⁃29发布2025⁃04⁃01实施

国家市场监督管理总局

发布

国家标准化管理委员会

GB/T2978—2024

目次

前言··························································································································Ⅲ

1范围·······················································································································1

2规范性引用文件········································································································1

3术语和定义··············································································································1

4轮胎规格的表示方法··································································································1

5轮胎规格、尺寸、气压与负荷·························································································2

6气门嘴··················································································································41

附录A（规范性）负荷指数和负荷能力的对应关系·····························································43

附录B（规范性）速度符号和最高行驶速度的对应关系·······················································44

附录C（规范性）新胎最大、最小外缘尺寸计算及修约规定···················································45

表180系列轿车子午线轮胎··························································································3

表275系列轿车子午线轮胎··························································································5

表370系列轿车子午线轮胎··························································································6

表465系列轿车子午线轮胎··························································································8

表560系列轿车子午线轮胎·························································································10

表655系列轿车子午线轮胎·························································································13

表750系列轿车子午线轮胎·························································································15

表845系列轿车子午线轮胎·························································································18

表940系列轿车子午线轮胎·························································································21

表1035系列轿车子午线轮胎·······················································································23

表1130系列轿车子午线轮胎·······················································································26

表1225系列轿车子午线轮胎·······················································································29

a

表13高负荷（HL）轿车子午线轮胎················································································31

表14T型临时使用的备用轮胎·····················································································32

a

表15保留生产的轿车子午线轮胎················································································36

表16标准型轿车子午线轮胎负荷与气压对应表································································36

表17增强型轿车子午线轮胎负荷与气压对应表································································38

表18行驶速度超过160km/h时轿车子午线轮胎最低气压的调整方法···································40

表19行驶速度超过210km/h时轿车轮胎的负荷能力变化百分率·········································41

表20轿车轮胎用气门嘴型号························································································42

表A.1负荷指数与负荷能力对应表················································································43

表B.1速度符号与最高行驶速度对应表···········································································44

Ⅰ

GB/T2978—2024

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

本文件代替GB/T2978—2014《轿车轮胎规格、尺寸、气压与负荷》，与GB/T2978—2014相比，除

结构调整和编辑性改动外，主要技术变化如下：

——增加了高负荷轿车子午线轮胎标志要求和，并更改了需要标记“RF”或“ZRF”的轮胎类型引

用了GB/T30196—2022相关规定的说明（见第4章，2014年版的第4章）；

——删除了保留生产的轿车斜交轮胎（见2014年版的第4章及表15）；

——增加了部分轿车子午线轮胎规格（见表1~表12，表14）；

——增加了部分规格的增强型负荷指数及负荷能力（见表1、表3~表9、表11，2014年版的表1、

表3~表9、表11）；

——增加了部分规格的标准型负荷指数及负荷能力（见表6~表9、表11，2014年版的表6~表9、

表11）；

——更改了部分规格的个别数据参数（见表1~表12、表14，2014年版的表1~表13）；

——增加了高负荷轿车子午线轮胎（见表13）；

——供临时使用的T型备用轮胎部分规格增加轻负荷型（见表14，2014年版的表13）；

——增加了T型备用轮胎的测量轮辋及允许使用轮辋要求（见表14，2014年版的表13）；

——更改规范了对充气压力的要求（见5.5，2014年版的5.5）；

——删除了部分速度符号和最高速度的对应关系（见表B.1，2014年版的表B.1）；

——增加了新胎最大最小外缘尺寸计算及修约规定（见附录C）。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中国石油和化学工业联合会提出。

本文件由全国轮胎轮辋标准化技术委员会（SAC/TC19）归口。

本文件起草单位：三角轮胎股份有限公司、万力轮胎股份有限公司、中策橡胶集团股份有限公司、

山东玲珑轮胎股份有限公司、厦门正新橡胶工业有限公司、赛轮集团股份有限公司、双星集团有限责任

公司、北京橡胶工业研究设计院有限公司、浦林成山（山东）轮胎有限公司、四川轮胎橡胶（集团）股份有

限公司、安徽佳通乘用子午线轮胎有限公司、青岛森麒麟轮胎股份有限公司、双钱轮胎集团有限公司、

山东丰源轮胎制造股份有限公司、山东昌丰轮胎有限公司、山东兴鸿源轮胎有限公司、四川远星橡胶有

限责任公司、天津市万达轮胎集团有限公司、山东省三利轮胎制造有限公司、雄鹰轮胎集团有限公司、

山东宏盛橡胶科技有限公司、山东金宇轮胎有限公司、倍耐力轮胎有限公司、大连固特异轮胎有限公

司、米其林（中国）投资有限公司、韩泰轮胎有限公司、优科豪马橡胶有限公司、普利司通（中国）投资有

限公司、住友橡胶（中国）有限公司、上汽通用五菱汽车股份有限公司、安徽德技汽车检测中心有限公

司、杭州汉德质量认证服务有限公司。

本文件主要起草人：王大鹏、于宝林、周琼、张典、王秀梅、陈建明、田宗波、徐伟、牟守勇、徐丽红、

王琰、罗建刚、陈云、秦靖博、郝云南、郑涛、潘文、朱作勇、崔友明、于振江、杨洪涛、高建刚、张玉亮、

杨万龙、牛福相、尹庆叶、周翎、刘清杰、王镇潇、朱诚、章斌、黄元毅、何鹏春、余恒、李淑环、郑蕊、

李苗苗。

本文件所代替标准的历次版本发布情况为：

——1982首次发布为GB/T2978—1982《轿车轮胎系列》；1989年第一次修订；1997年第二次

Ⅲ

GB/T2978—2024

修订；

——2008年第三次修订，并将标准名称更改为《轿车轮胎规格、尺寸、气压与负荷》；

——2014年第四次修订；本次为第五次修订。

Ⅳ

GB/T2978—2024

轿车轮胎规格、尺寸、气压与负荷

1范围

本文件规定了轿车轮胎规格的表示方法、轮胎规格及对应的尺寸、气压与负荷及相关要求。

本文件适用于新的轿车充气轮胎。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于

本文件。

GB/T6326轮胎术语

GB/T30196—2022自体支撑型缺气保用轮胎

3术语和定义

GB/T6326界定的术语和定义适用于本文件。

4轮胎规格的表示方法

轿车轮胎规格表示示例如下：

增强型轮胎应增加负荷识别标志“EXTRALOAD（或XL）”或“REINFORCED（或REINF）”。

高负荷轿车子午线轮胎属于增强型轮胎，还应增加规格前缀标志“HL”，例如：HL185/70R13。

最高速度超过240km/h不超过300km/h的轮胎（轮胎上标记W或Y速度符号），结构类型代号

可用“ZR”替换“R”。

1