JB/T 10238
汽车轮毂轴承单元
汽车轮毂轴承单元
📋 Scope / 适用范围 ai_extracted
This standard specifies the terms and definitions, symbols, classification, designation method, basic structural types, basic dimensions, technical requirements, fitting and installation, inspection methods, inspection rules, marking, rust-proof packaging, transportation, and storage for hub bearings or their units (hereinafter referred to as hub bearing units) used in passenger cars. This standard is applicable to the production, inspection, and acceptance of hub bearing units.
本标准规定了乘用车用轮毂轴承或其单元（以下简称轮毂轴承单元）的术语和定义、符号、分类、 代号方法、基本结构型式、基本尺寸、技术要求、配合安装、检测方法、检验规则、标志、防锈包装、 运输和贮存。 本标准适用于轮毂轴承单元的生产、检验和验收。
📝 Foreword / 前言 ai_extracted
This standard replaces JB/T 10238—2001 "Automotive wheel hub bearing units". Compared with JB/T 10238—2001, the main changes in this standard are as follows: —— Added wheel hub bearing unit structures with flanges on the outer ring and flanges on both the inner and outer rings, and correspondingly added their symbols, designation methods, structural type diagrams, and basic dimensions (Chapter 4, Chapter 6, Figures 3 to 10, Appendix A of this edition); —— Added terms and definitions (Chapter 3 of this edition); —— Added classification (Chapter 5 of this edition); —— Modified the representation methods of some designations (6.3 of this edition, 4.2 of the 2001 edition); —— Added examples of designations for wheel hub bearing units with flanges on the outer ring and flanges on both the inner and outer rings (6.5 of this edition); —— Integrated the basic dimension tables, added basic dimension tables for wheel hub bearing units with flanges on the outer ring and flanges on both the inner and outer rings, and placed this content in Appendix A (Appendix A of this edition, Chapter 5 and Appendix A of the 2001 edition); —— Modified the material and heat treatment requirements (6.1 of the 2001 edition, 9.1 of this edition); —— Modified the tolerances for the ring parts, and added finished product tolerances for flanged wheel hub bearing units (9.2.1, 9.2.2 of this edition, 6.2.1 of the 2001 edition); —— Added precision requirements for internal splines and bolt holes of wheel hub bearing units (9.2.3 of this edition); —— Added vibration requirements (9.6 of this edition); —— Reduced the grease filling quantity (9.7.1 of this edition, 6.7.1 of the 2001 edition); —— Added requirements for bolts and sensors (9.8, 9.9 of this edition); —— Added technical conditions for the fitting and installation of wheel hub bearing units (Chapter 10, Appendix B of this edition); —— Added a detection method for the hardness of flanged rings (11.1 of this edition); —— Modified the rotational speed for grease leakage and temperature rise performance tests of wheel hub bearing units (11.8 of this edition, 7.8 of the 2001 edition); —— Modified the inspection rules (Chapter 12 of this edition, Chapter 8 of the 2001 edition); —— Added content on transportation and storage (Chapter 15 of this edition); —— Incorporated the content of the original Appendix B into Appendix C (Appendix C of this edition, Appendix B of the 2001 edition). Appendix A and Appendix C of this standard are normative appendices, and Appendix B is an informative appendix. This standard was proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Rolling Bearings (SAC/TC98). Drafting units of this standard: Luoyang Bearing Research Institute Co., Ltd., Shaoguan Southeast Bearing Co., Ltd., Xiangyang Automobile Bearing Co., Ltd., Wanxiang Qianchao Co., Ltd., Hangzhou Zhaofeng Auto Parts Manufacturing Co., Ltd., Hubei New Torch Technology Co., Ltd., C&U Group Co., Ltd., Chongqing Changjiang Bearing Co., Ltd., Changzhou Guangyang Bearing Co., Ltd., Zhejiang Xinchang Xinzhu Industrial Co., Ltd., Hangzhou Hengke Precision Mechanical & Electrical Co., Ltd. Main drafters of this standard: Ma Suqing, Li Guihua, Zhang Lei, Zhou Xu, Kong Aixiang, Wu Shaowei, Guo Changjian, Zhao Xingxin, Zhang Song, Pang Qixing, Zhang Qianyu, Kang Naizheng. The previous versions of the standard replaced by this standard are as follows: —— JB/T 10238—2001. National Standard Forever www.gb99.cn Free Download JB/T 10238—2011
本标准代替JB/T 10238—2001《汽车轮毂轴承单元》。 本标准与JB/T 10238—2001 相比，主要变化如下： ——增加了外圈带凸缘和内、外圈都带凸缘的轮毂轴承单元结构，并相应增加了其符号、代号方 法、结构型式图和基本尺寸（本版的第4 章、第6 章、图3～图10、附录A）； ——增加了术语和定义（本版的第3 章）； ——增加了分类（本版的第5 章）； ——修改了部分代号的表示方法（本版的6.3，2001 年版的4.2）； ——增加了外圈带凸缘和内、外圈都带凸缘的轮毂轴承单元代号示例（本版的6.5）； ——对基本尺寸表进行了整合，增加了外圈带凸缘和内、外圈都带凸缘的轮毂轴承单元基本尺 寸表，并将此内容放入附录A 中（本版的附录A，2001 年版的第5 章、附录A）； ——修改了材料和热处理要求（2001 年版的6.1，本版的9.1）； ——修改了套圈部分公差，增加了带凸缘的轮毂轴承单元成品公差（本版的9.2.1、9.2.2，2001 年版的6.2.1）； ——增加了轮毂轴承单元内孔花键和螺栓孔的精度要求（本版的9.2.3）； ——增加了振动的要求（本版的9.6）； ——压缩了填脂量（本版的9.7.1，2001 年版的6.7.1）； ——增加了对螺栓、传感器的要求（本版的9.8、9.9）； ——增加了对轮毂轴承单元配合安装的技术条件（本版的第10 章、附录B）； ——增加了带凸缘套圈硬度的检测方法（本版的11.1）； ——修改了轮毂轴承单元漏脂、温升性能试验的转速（本版的11.8，2001 年版的7.8）； ——修改了检验规则（本版的第12 章，2001 年版的第8 章）； ——增加了运输和贮存的内容（本版的第15 章）； ——将原附录B 的内容纳入附录C（本版的附录C，2001 年版的附录B）。 本标准的附录A 和附录C 为规范性附录，附录B 为资料性附录。 本标准由中国机械工业联合会提出。 本标准由全国滚动轴承标准化技术委员会（SAC/TC98）归口。 本标准起草单位：洛阳轴承研究所有限公司、韶关东南轴承有限公司、襄阳汽车轴承股份有限公 司、万向钱潮股份有限公司、杭州兆丰汽车零部件制造有限公司、湖北新火炬科技股份有限公司、人本 集团有限公司、重庆长江轴承有限公司、常州光洋轴承有限公司、浙江省新昌新轴实业有限公司、杭州 恒科精工机电有限公司。 本标准主要起草人：马素青、黎桂华、张雷、周旭、孔爱祥、吴少伟、郭长建、赵兴新、张松、庞 启兴、张千玉、康乃正。 本标准所代替标准的历次版本发布情况为： ——JB/T 10238—2001。 国标久久 www.gb99.cn 免费下载 JB/T 10238—2011
📚 References & Relations / 引用与关联
📖 Terms & Definitions / 术语和定义 ai_extracted
- 有效硬化层深度 effective hardening depth / effective hardening depth
- 从零件表面垂直测量到规定的某种显微组织边界或规定的显微硬度的硬化层距离。
- The distance measured perpendicularly from the surface of a part to the boundary of a specified microstructure or to a specified microhardness of the hardened layer.
- 拧紧力矩 tightening torque / tightening torque
- 根据各零件之间的配合要求，通过调整螺母的松紧对轴承内圈施加的力矩。
- The torque applied to the inner ring of the bearing by adjusting the tightness of the nut according to the fit requirements between the components.
🔗 Related Standards / 同类标准
Content extracted by AI. Not officially verified.