Standard No.:	QC/T 77-1993
Chinese Name:	汽车液压制动轮缸技术条件
English Name:
Professional Classification:	T24 Braking system
Professional Classification:	QC Professional Standard - Automobile
Issued by:
Issued on:
Implemented on:
Status:	ABOLISHED
Replace:	JB540-1964
Replace By:	QC/T77-2015 Specifications and bench test methods of automobile hydraulic brake wheel cylinder
Replace By Date:	2016-01-01
Language:	English
File Format:	PDF
Word Count:
Price(USD):	please email coc@codeofchina.com for quotation
Delivery:	via email in

1 Subject Content and Application Scope

This standard specifies product classification, technical requirements, test methods, inspection rules, mark, package, transport and storage of drum brake wheel cylinder assembly for automobile hydraulic braking.
This standard is applicable to wheel cylinder assembly for automobile hydraulic braking drum brake of non-petroleum base brake fluid (hereinafter referred to as wheel cylinder; See Figure 1 and Figure 2).

2 Normative References

JB 2759 "General Specification for Packagings of Mechanical and Electrical Products"
GB 2828 "Sampling Procedures and Tables for Lot-by-lot Inspection by Attributes"
GB 10830 "Specifications of Using Automobile Brake Fluid"
GB 7524 "Hydraulic Brake Rubber Cups for Automobiles"
GB 1801 "Limits and Fits-Dimension to 500mm Orifice, Axial Tolerance Zones and Fits"
GB 1030 "Surface Roughness-Parameters and Their Values"