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SAE J 866-2012 (SAE J866-2012)

Friction Coefficient Identification and Environmental Marking System for Brake Linings

This SAE Recommended Practice is intended to provide a uniform means of identification which may be used to classify the friction coefficient of brake linings, based on data obtained from tests conducted in accordance with SAE J661 Chase Test and SAE J2975 Measurement of Copper and other elements in Brake Friction Materials. NOTE: It is emphasized that this document does not establish friction requirements for brake linings, nor does it designate significant characteristics of brake linings which must be considered in overall brake performance. Due to other factors that include brake system design and operating environment, the friction coefficients obtained from this document cannot reliably be used to predict brake system performance.

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Society of Automotive Engineers [SAE]


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