This SAE Recommended Practice is to establish the Antilock Brake System (ABS) sensor interface and envelope dimensions for standardizing the location of the ABS rings mounted on the inner end of the spoke wheels, hubs and hub-rotor assemblies on the following axle designations: a. FF; b. FL; c. FC; d. FH; e. L; f. R; g. U; h. W; j. N; k. P.

This document provides standardized wheel end ABS sensor interface dimensions for spoke wheels, hubs and hub-rotor assemblies intended for normal highway use on trucks, buses, truck trailers, and multipurpose vehicles. The illustrations given in the document are for reference only. These illustrations show typical sensor ring designs and mountings, but are not limited to those shown. Serviceability considerations are not covered in this document.