GB 5763-2018 PDF English
US$85.00 · In stock · Download in 9 secondsGB 5763-2018: Brake Linings for Automobiles Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB 5763: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 5763-2018 | English | 85 |
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0-9 seconds. Auto-delivery
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Brake Linings for Automobiles
| Valid |
| GB 5763-2008 | English | 85 |
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0-9 seconds. Auto-delivery
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Brake linings for automobiles
| Obsolete |
| GB 5763-1998 | English | 399 |
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3 days
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Brake linings for automobiles
| Obsolete |
| GB 5763-1986 | English | RFQ |
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3 days
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Brake linings for automobiles
| Obsolete |
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GB 5763-2018: Brake Linings for Automobiles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB5763-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.40
Q 69
Replacing GB 5763-2008
Brake Linings for Automobiles
Issued on. NOVEMBER 19, 2018
Implemented on. OCTOBER 1, 2019
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 Basic Requirements Regarding Health and Safety... 8
5 Test Methods... 10
6 Inspection Rules... 10
7 Marking, Packaging, Transportation and Storage... 11
Foreword
This Standard is compulsory in full-text.
This Standard is drafted in accordance with the stipulations in GB/T 1.1-2009.
This Standard serves as a replacement of GB 5763-2008 Brake Linings for
Automobiles. In comparison with GB 5763-2008, there are several main technical
changes as follows.
---Compulsory in provisions is modified into compulsory in full-text (please refer to
this Foreword; Foreword in Version 2008);
---There are changes in normative references (please refer to Chapter 2; Chapter
2 in Version 2008);
---All terms and definitions are modified (please refer to Chapter 3; Chapter 3 in
Version 2008);
---Classification is deleted (please refer to Chapter 4 in Version 2008);
---“Technical Requirements” is modified into “Basic Requirements Regarding
Health and Safety” (please refer to Chapter 4; Chapter 5 in Version 2008);
---The technical requirements and corresponding test methods of “appearance
quality”, “dimensional deviation”, “impact strength”, “thermal expansion rate”
and “compressive strain” are deleted (please refer to 5.1, 5.2, 5.5, 5.6 and 5.7
in Version 2008; 6.1, 6.2, 6.4, 6.5, 6.6 and 6.7);
---The requirements and test methods of “harmful elements limit” are added
(please refer to 4.1, 5.1 and 5.2);
---The friction performance requirement is modified from “friction coefficient of
various test temperatures of constant-speed friction test, allowable deviation of
appointed friction coefficient and abrasion rate” into “small sample bench test
room temperature and high-temperature friction coefficient of drum brake lining
adopted on Type-M1, Type-M2, Type-N1, Type-O1, Type-O2 vehicle” and “disc
lining and working friction coefficient deviation of drag test of friction
performance of drum brake lining adopted on Type-M3, Type-N2, Type-N3,
Type-O3, Type-O4 vehicle”; test method is also correspondingly modified
(please refer to 4.2 and 5.3; 5.3 and 6.3 in Version 2008);
---The requirement that “shear strength of bonded rubber base drum brake lining
at room temperature shall be not less than 1.0 MPa; the area of lining that
remains on the shoe after test shall be not less than 70%” is added (please
refer to 4.3);
---Inspection rules are modified correspondingly (please refer to Chapter 6;
Chapter 7 in Version 2008);
---Batch principle is modified from “the practical delivery of linings of the same
texture and the same specification shall be considered as a batch” into
“products shall be divided into 3 types in accordance with disc lining; drum
brake lining adopted on Type-M1, Type-M2, Type-N1, Type-O1, Type-O2 vehicle;
drum brake lining adopted on Type-M3, Type-N2, Type-N3, Type-O3, Type-O4
vehicle; the practical delivery of the same type of linings of the same elements,
the same technique and the same month of production shall be considered as
a batch” (please refer to 6.2; 7.2.1 in Version 2008);
---“Manufacturer’s name or trademark shall be printed on lining’s non-working
surface” is modified into “manufacturer’s name (abbreviation) or trademark
(code) shall be printed on lining’s non-working surface” (please refer to 7.1.1;
8.1.1 in Version 2008);
---“Appointed friction coefficient shall be printed on the packaging box” is modified
into “drum brake lining adopted on Type-M1, Type-M2, Type-N1, Type-O1, Type-
O2 vehicle shall also indicate the friction coefficient level code; disc lining and
drum brake lining adopted on Type-M3, Type-N2, Type-N3, Type-O3, Type-O4
vehicle shall also indicate the appointed friction coefficient” (please refer to
7.1.2; 8.1.2 in Version 2008).
This Standard was proposed by and shall be under the jurisdiction of Ministry of
Industry and Information Technology of the People’s Republic of China.
The drafting organizations of this Standard. Shandong Gold Phoenix Group, Dongying
Baofeng Auto Parts Co., Ltd., TMD Friction Technology (Shanghai) Co., Ltd., Fujian
Huari Automotive Parts Co., Ltd., Xiamen Lixingda Friction Material Co., Ltd.,
Chongqing Hongyu Friction Products Co., Ltd., Ningguo Feiying Auto Parts Co., Ltd.
Zaoyang Xingya Friction Material Co., Ltd., Shandong Liangshan Shenli Auto Parts
Co., Ltd. Rizhao Zhongwei Automobile Part Co., Ltd., Tonglu Yuxin Automobile Parts
Co., Ltd., Hengshui Zhongcheng Friction Material Co., Ltd., Chongqing Hong Xiang
Auto Parts Co., Ltd., Xianyang Non-metallic Mine Research and Design Institute Co.,
Ltd., Hubei Feilong Friction & Sealing Materials Co., Ltd., Guiyang TALFRI Brakes Co.,
Ltd., Hebei Shuanghu Auto Parts Co., Ltd., The National Non-metallic Mineral Products
Quality Supervision and Inspection Center, Hangzhou Westlake Friction Material Co.,
Ltd.
The main drafters of this Standard. Shang Xingchun, Sunpeng, Zhen Minghui, Tian
Shiguo, Zhang Jianli, Su Meizhen, Yang Lijun, Ye Jialing, Zhaoyong, Sun Qichun, Lei
Jianbin, Zhao Jinbao, Feng Jingyou, Sun Baoqi, Wang Yupeng, Liu Tonglin, Tian
Hongxiang, Ma Yanbinbing, Li Quanwu, Liu Jianhui, Shi Zhigang, Shen Yongsheng.
The release of previous versions of the standard replaced by this Standard is as follows.
---GB 5763-1986, GB 5763-1998, GB 5763-2008.
Brake Linings for Automobiles
1 Scope
This Standard specifies the terms and definitions, the basic requirements regarding
health and safety, test methods, inspection rules, marking, packaging, transportation
and storage of brake linings for automobiles.
This Standard is applicable to brake linings for automobiles (hereinafter referred to as
“linings”).
2 Normative References
The following documents are indispensable to the application of this Standard. In terms
of references with a specified date, only versions with a specified date are applicable
to this Standard. The latest version (including all the modifications) of references
without a specified date is also applicable to this Standard.
GB/T 5620 Road Vehicles - Braking of Automotive Vehicles and Their Trailers -
Vocabulary
GB/T 15089 Classification of Power-driven Vehicles and Trailers
GB/T 17469 Characteristics Evaluation of Brake Lining for Automobile - Small Sample
Bench Test Method
GB/T 22309 Road Vehicles - Brake Linings - Shear Test Procedure for Disc Brake Pad
and Drum Brake Shoe Assemblies
GB/T 23263 Determination of Asbestos in Products
3 Terms and Definitions
What is defined in GB/T 5620 and GB/T 15089, and the following terms and definitions
are applicable to this document.
3.1 Coefficient of Friction
Coefficient of friction refers to the ratio of the tangential force (namely, friction) that
obstructs two objects’ relative motion to the normal force that applies to the surface of
the objects.
3.4 Classification for Coefficient of Friction
Classification for coefficient of friction refers to the classification of friction coefficient
into 6 grades from small to large. C, D, E, F, G, H in small sample bench test. Please
refer to GB/T 17469.In terms of drum brake lining adopted on Type-M1, Type-M2, Type-
N1, Type-O1, Type-O2 vehicle, its friction coefficient shall be represented with grade
code. The first letter represents friction coefficient at room temperature; the second
letter represents high-temperature friction coefficient.
3.5 Operational Coefficient of Friction
μ work
3.6 Operational 1 Coefficient of Friction
μ work 1
Operational 1 coefficient of friction refers to the average value of friction coefficient that
is measured in 5 braking operations in Test Number 2 under the constant pressure
mode when friction performance drag test is conducted on disc lining and drum lining
adopted on Type-M3, Type-N2, Type-N3, Type-O3, Type-O4 vehicle. Please refer to GB/T
34007 for details.
3.8 Appointed Coefficient of Friction
Appointed coefficient of friction refers to the working friction coefficient that is appointed
by lining’s manufacturer and expressed in friction performance drag test method; it
depends on the elements and production technique of linings.
4 Basic Requirements Regarding Health and Safety
4.1 Limit of Harmful Elements
4.1.1 Linings shall not contain asbestos.
4.2 Friction Performance
4.2.1 The result of small sample bench test of drum lining that is adopted on Type-M1,
Type-M2, Type-N1, Type-O1, Type-O2 vehicle shall comply with the following
requirements.
4.2.2 The result of friction performance drag test of disc lining that is adopted on Type-
M1, Type-M2, Type-N1, Type-O1, Type-O2 vehicle shall comply with the following
requirements.
4.2.3 The result of friction performance drag test of disc lining and drum lining that is
adopted on Type-M3, Type-N2, Type-N3, Type-O3, Type-O4 vehicle shall comply with
the following requirements.
4.3 Shear Strength
4.3.1 The shear strength of bonded resin base drum lining at room temperature shall
be not less than 1.5 MPa.
5 Test Methods
5.1 Determination of Asbestos Content
The determination of asbestos content shall comply with GB/T 23263.
5.3 Friction Performance Test
5.3.1 Small sample bench test
The small sample bench test of friction performance of drum lining adopted on Type-
M1, Type-M2, Type-N1, Type-O1, Type-O2 vehicle shall comply with GB/T 17469.
5.4 Shear Strength Test
Shear strength test shall comply with GB/T 22309.
6 Inspection Rules
6.1 Inspection Items
Before exit-factory, each batch of products shall receive inspection of friction
performance and shear strength. When new products are put into production to finalize
the modeling, or when there are changes in raw materials, harmful elements in the
products shall also be tested.
6.2 Group Batch Principle
Products shall be classified into 3 types, namely, disc lining; drum lining adopted on
Type-M1, Type-M2, Type-N1, Type-O1, Type-O2 vehicle; drum lining adopted on Type-
M3, Type-N2, Type-N3, Type-O3, Type-O4 vehicle.
6.3 Result Determination
In accordance with the number of samples stipulated in the test method, randomly take
samples. When each sample complies with the requirements in this Standard, this
batch of products shall be deemed as qualified; if a sample fails to comply with any of
the requirements in this Standard, take a doubled number of samples and re-inspect
the non-conformance items.
7 Marking, Packaging, Transportation and Storage
7.1 Marking
7.2 Packaging
7.2.1 Linings shall be tightly and tidily placed into a clean, dry, solid and durable case
(box).
7.2.2 In each packaging case (box), place linings of the same model and specification;
when user demands, a full-set of linings can also be placed.
7.2.3 In each packaging case (box), it shall have an attached certificate of product
qualification.
7.3 Transportation and Storage
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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