SAE Standards Works
Brake Dynamometer Standards Committee
J2986 - Brake Lining, Rotor and Drum Wear Measurements
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Brake Lining, Rotor and Drum Wear Measurements
This Recommended Practice provides a common method to measure wear of friction materials (brake pad assemblies and brake shoes) and their mating part (brake rotor or brake drum). These wear measurements apply to brakes fitted on passenger cars and ligth trucks up to 4,540 kg of Gross Vehicle Weight Rating or vehicles category M1 on the European Community.