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. 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.
SAE J866-2002 history
2019SAE J866-2019 Friction Coefficient Identification and Environmental Marking System for Brake Linings
2012SAE J866-2012 Friction Coefficient Identification and Environmental Marking System for Brake Linings
2002SAE J866-2002 Friction Coefficient Identification System for Brake Linings
1996SAE J866-1996 Friction Identification System for Brake Linings and Brake Blocks for Motor Vehicles
1985SAE J866-1985 Friction Coefficient Identification System for Brake Linings
1966SAE J866A-1966 Friction Identification System for Brake Linings and Brake Blocks for Motor Vehicles
1964SAE J866-1964 FRICTION IDENTIFICATION SYSTEM FOR BRAKE BLOCKS FOR COMMERCIAL VEHICLES