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Test Procedures for Shear Strength of Automotive Brake Pads and Brake Lining Assemblies
- Ground Vehicle Standard
- J840_201711
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Recommended Practice covers equipment capabilities and the test procedure to quantify and qualify the shear strength between the friction material and backing plate or brake shoe for automotive applications. This SAE Recommended Practice is applicable to: bonded drum brake linings; integrally molded disc brake pads; disc brake pads and backing plate assemblies using mechanical retention systems (MRS); coupons from drum brake shoes or disc brake pad assemblies. The test and its results are also useful for short, semi-quantitative verification of the bonding and molding process.
This Recommended Practice is applicable during product and process development, product verification and quality control. This Recommended Practice does not replicate or predict actual vehicle performance or part durability.
Rationale
The methodology for establishing percent material retention has been updated to directly identify an objective measurement technique. This allows for future test practitioners to generate comparable percent retention measurements between different locations. Percent material retention is a critical element to quantify as a part of the shear strength test procedure.
Recommended Content
| Ground Vehicle Standard | High-Preload Deflection and Compressibility Test Procedures for Friction Materials |
| Ground Vehicle Standard | Swell, Growth, and Dimensional Stability of Friction Materials and Noise Insulators when Exposed to Elevated Temperatures |
| Ground Vehicle Standard | Gogan Hardness of Brake Lining |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Table 1 | Disc brake soak temperature and time | |
| Table 2 | Drum brake soak temperature and time |
Issuing Committee
Brake Linings Standards Committee
The goal of the Brake Lining Standards Committee is to provide a means of developing and maintaining common test and nomenclature standards for the friction materials industry. In working toward this goal, the committee helps reduce industry costs, harmonize global markets and enhance safety by recommending uniform test and performance standards for automotive friction materials.
Reference
| Number | Title |
|---|---|
| ISO6312 | This document is not part of the subscrption. |
| JISD4422 | This document is not part of the subscrption. |
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