GB/T 37269-2018 PDF English
US$130.00 · In stock · Download in 9 secondsGB/T 37269-2018: Brake pad assembly for automobile Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 37269-2018 | English | 130 |
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Brake pad assembly for automobile
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GB/T 37269-2018: Brake pad assembly for automobile---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/GBT37269-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.40
Q 69
Brake pad assembly for automobile
Issued on: DECEMBER 28, 2018
Implemented on: NOVEMBER 01, 2019
Issued by. State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Requirements ... 7
5 Test methods ... 8
6 Inspection rules ... 9
7 Marking, packaging, transportation, and storage ... 11
8 Explanation ... 12
Brake pad assembly for automobile
1 Scope
This Standard specifies the requirements, test methods, inspection rules,
marking, packaging, transportation, and storage of disc brake pad assembly for
automobile (hereinafter known as “disc brake pad” for short).
This Standard applies to disc brake pad assembly for hydraulic and pneumatic
disc brakes for type M, type N, and type O vehicles.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1.
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection (GB/T 2828.1-2012, ISO 2859-1.1999, IDT)
GB/T 5620 Road vehicles - Braking of automotive vehicles and their trailers
- Vocabulary (GB/T 5620-2002, idt ISO 611.1994)
GB 5763-2018 Brake linings for automobiles
GB/T 15089 Classification of power-driven vehicles and trailers
GB/T 22309 Road vehicles - Brake linings - Shear test procedure for disc
brake pad and drum brake shoe assemblies (GB/T 22309-2008, ISO
6312.2001, IDT)
GB/T 22310 Road vehicles - Brake linings - Effects of heat on dimensions
and form of disc brake pads-test procedure (GB/T 22310-2008, ISO
6313.1980, IDT)
GB/T 22311 Road vehicles - Brake linings - Compressive strain test method
(GB/T 22311-2008, ISO 6310.2001, IDT)
GB/T 29065 Road vehicles - Brake lining friction materials - Evaluation
method of corrosion effects on painted backing plates and brake shoes
(GB/T 29065-2012, ISO 27667.2011, IDT)
[GB/T 15089-2001, Definition 3.3]
3.2.1 Type N1
Cargo vehicles with a maximum design total mass of no more than 3500 kg.
[GB/T 15089-2001, Definition 3.3.1]
3.2.2 Type N2
Cargo vehicles with a maximum design total mass of more than 3500 kg but no
more than 12000 kg.
[GB/T 15089-2001, Definition 3.3.2]
3.2.3 Type N3
Cargo vehicles with a maximum design total mass of more than 12000 kg.
[GB/T 15089-2001, Definition 3.3.3]
3.3 Type O
Trailers (including semi-trailers).
[GB/T 15089-2001, Definition 3.4]
3.3.1 Type O1
Trailers with a maximum design total mass of no more than 750 kg.
[GB/T 15089-2001, Definition 3.4.1]
3.3.2 Type O2
Trailers with a maximum design total mass of more than 750 kg but no more
than 3500 kg.
[GB/T 15089-2001, Definition 3.4.2]
3.3.3 Type O3
Trailers with a maximum design total mass of more than 3500 kg but no more
than 10000 kg.
[GB/T 15089-2001, Definition 3.4.3]
3.3.4 Type O4
The shear strength of disc brake pad (bond type), at 300 °C, shall not be less
than 1.5 MPa. The area of the brake lining remaining on the backing plate after
shearing shall not be less than 70%.
4.7 Density
The density of disc brake pad shall be agreed upon by both the supplier and
the purchaser. The deviation shall not be more than ±10% of the nominal value.
4.8 Corrosion resistance
Under the neutral salt spray NSS test conditions, the test chamber temperature
is (35±2)°C; the sodium chloride concentration is (50±5)g/L; the pH is 6.5~7.2;
the test period is 96 h; painted backing plate shall have no defects such as
blistering; and the rusted area shall not exceed 50% of the area of friction lining.
After the corrosion resistance test, the shear strength test is carried out. The
room temperature shear strength shall not be less than 2.0 MPa.
4.9 Brake performance requirements
4.9.1 The brake performance requirements for disc brake pads for type M1
vehicles shall comply with the provisions of QC/T 564.
4.9.2 The brake performance requirements for disc brake pads for type M2, M3,
N, and O vehicles shall comply with the provisions of QC/T 239.
5 Test methods
5.1 Appearance quality
Appearance quality inspection shall be carried out according to JC/T 2103-2012.
5.2 Dimensional deviation
Dimensional deviation is measured using a measuring tool with an accuracy of
not less than 0.02 mm.
5.3 Basic requirements related to health and safety
The basic requirements related to health and safety shall be tested in
accordance with Clause 5 of GB 5763-2018.
5.4 Test for effects of heat on dimensions and form
The test for effects of heat on dimensions and form shall be carried out
according to GB/T 22310.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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