GB 40164-2021Automobiles and trailer - Specifications and test methods of brake part (English PDF)

Foreword

This Standard was drafted in accordance with the rules in GB/T 1.1-2009. 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. Automobiles and Trailer - Specifications and Test Methods of Brake Part

1 Scope

GB 40164-2021 is the Chinese national standard on automobiles and trailer - specifications and test methods of brake part, in the field of road vehicles engineering. It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China. It was issued on 30 April 2021 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 January 2022. Classification: ICS 43.040.40, CCS T 24. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This Standard specifies the terms and definitions, test-related requirements, technical requirements, test methods, packaging, marking and product consistency of brake replacement parts, such as. brake linings, brake shoe assembly, pad assembly, brake drums and brake discs for automobiles and trailer braking systems. This Standard is applicable to the following brake parts.

a) Used for the replacement brake shoe assembly and replacement pad assembly of the friction-type brake of the braking system components of Category-M, Category N and Category-O vehicles that have completed type certification in accordance with GB 12676-2014 or GB 21670-2008;

b) Used for the replacement brake linings of Category-M3, Category-N2, Category-N3, Category-O3 or Category-O4 vehicles that have completed type certification in accordance with GB 12676-2014, and designed to be riveted to the brake shoe before assembly and use;

c) Used for the replacement brake shoe assembly and pad assembly of the parking braking system for exclusive uses;

d) Used for the replacement brake drums and replacement brake discs of the friction-type brake of the braking system components of Category-M, Category-N and Category-O vehicles that have completed type certification in accordance with GB 12676-2014 or GB 21670-2008. This Standard is not applicable to original brake drums, brake discs, brake shoe assembly, pad assembly and brake linings (already installed on the vehicle at the time of type certification), as well as original replacement brake drums, brake discs, brake shoe assembly, pad assembly and brake linings used for vehicle after-sales maintenance service.

2 Normative References

The following documents are indispensable to the application of this document. 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 131 Geometrical Product Specifications (GPS) - Indication of Surface Texture in Technical Product Documentation

GB/T 228.1 Metallic Materials - Tensile Testing - Part

3 Terms and Definitions

What is defined in GB/T 5620, GB 12676-2014 and GB 21670-2008, and the following terms and definitions are applicable to this document.

3.1 Parking Shoe (pad) Assembly Parking shoe assembly or parking pad assembly separated from the service braking system and exclusively used by the parking braking system.

3.2 Minimum Thickness Minimum thickness refers to the limit thickness allowed by the brake disc.

3.3 Maximum Inside Diameter Maximum inside diameter refers to the inside diameter of the limit friction surface allowed by the brake drum.

4 Product Classification

4.1 In accordance with the standards implemented for product type certification, brake parts are divided into.

4.2 In accordance with the structures, dimensions and materials, the replacement brake drums and replacement brake discs are subdivided into.

7 Packaging and Marking

7.1 Replacement Brake Linings, Replacement Brake Shoe Assemblies and Replacement Pad Assemblies

7.1.1 The replacement brake linings or replacement brake shoe assemblies, or replacement pad assemblies of the same model that comply with this Standard shall be packed and sold in pairs in accordance with the vehicle axles (bridges).

7.1.2 Each pair of products shall be packed in a sealed package with a pre-opening.

7.1.3 The following information shall be marked on each package.

7.1.4 Each package shall be attached with an installation manual, which shall include the following information.

7.1.5 Each replacement brake lining, or replacement brake shoe assembly or replacement pad assembly shall be permanently provided with information like certification marks in accordance with Appendix H.

8 Product Consistency

8.1 The production of replacement parts certified in accordance with this Standard shall be consistent with the approved models.

8.2 The manufacturer of replacement parts shall adopt appropriate production control measures to ensure product consistency.

8.3 For the replacement brake linings, replacement brake shoe assemblies and replacement pad assemblies, in accordance with the regular quality assurance procedures, and the principles of statistical control and random sampling, at least the relevant tests specified in I.

8.4 For the replacement brake discs and brake drums, in accordance with the regular quality assurance procedures, and the principles of statistical control and random sampling, at least the tests specified in I.2 shall be conducted.