Standard No.:	JB/T 7019-1993
English Name:	Disk Brake - Brake Disc
Chinese Name:	盘式制动器 制动盘
Chinese Classification:	J19    Coupling, brake and speed variator
Professional Classification:	JB    Professional Standard - Machinery
Source Content Issued by:	Beijing Materials Hanging Research Institute
Issued on:	1993-9-21
Implemented on:	1994-7-1
Status:	superseded
Superseded by:	JB/T 7019-2013 Industrial Brake - Brake Drums and Discs
Superseded on:	2013-9-1
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	264.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the type, dimension, technical requirements and test rules of the brake disc used for the disk brake (hereinafter referred to as brake disc). This standard is applicable to all kinds of the single-disc style brake discs. This standard is not applicable to the multi-disc and wet disc brakes. 2 Normative References GB 699 "Carbon Constructional Quality Steel-Technical Conditions" GB 1348 "Ductile Iron Castings" GB 1569 "Cylindrical Ends of Axles" GB 3077 "Alloy Structure Steel-Technical Requirements" GB 3852 "Types and Dimensions for Coupling Bores and Their Connection" GB 11352 "Cast Carbon Steels for General Engineering Purposes" GB 11357 "Quality Roughness and Balance of Transmission Pulleys" GB/T 13384 "General Technical Specifications for the Packaging of Electromechanical Products" JB/ZO 4297 "Alloy Cast Steel" 3 Type and Dimension 3.1 Type 3.1.1 The type of the brake disc may be divided into Type A brake disc and Type B brake disc according to its structure. a. The structural feature of the Type A brake disc is brake disc and wheel hub are made as a whole, and shown in Figure 1. The brake disc has entity brake disc (code number is S), straight air brake disc (code number is Z) and curve air brake disc (code number is Q). The code numbers of the three kinds of brake discs are ASP, AZP, and AOP respectively. b. The structural feature of the Type B brake disc is brake disc and wheel hub may be connected detachably, and shown in Figure 2. The brake disc also has entity brake disc, straight air brake disc and curve air brake disc. The code numbers of the three kinds of brake discs are BSP, BZP and BOP respectively. The brake disc is not required to entirely correspond with the schematic construction, but shall meet the given dimension. 3.1.2 Representation Methods of the Type

Contents 1 Scope 2 Normative References 3 Type and Dimension 4 Technical Requirements 5 Inspection Rules 6 Package, Transportation and Storage 7 Quality Assurance Date Additional Explanations: