J866_196403 FRICTION IDENTIFICATION SYSTEM FOR BRAKE BLOCKS FOR COMMERCIAL VEHICLES

This SAE Recommended Practice is intended to provide a uniform means of identification which may be used to describe the initial friction characteristics only of brake blocks (see SAE J660, Brake Linings) for use on commercial vehicles.

NOTE: It is emphasized that this recommended practice does not establish friction requirements for brake blocks, nor does it designate other significant block characteristics which must also be considered in overall brake performance.

The basis for determining the friction coefficients for brake blocks are tests conducted in accordance with SAE J661, Brake Lining Quality Control Test Procedures.