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J2686_201203 - Brake Drum Qualification Recommended Practice

Document Number: J2686_201203
Revision Number:
Brake Drum Qualification Recommended Practice
This SAE Recommended Practice is intended for qualification testing for brake drums used on highway commercial vehicles with air brakes using an inertia-dynamometer procedure. This Recommended Practice consists of two distinct tests: Part A - durability and speed maintenance test, and Part B - heat check drag sequence test. Each test can be considered to be an independent evaluation of the brake drum which tests different properties.
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