Abstract: A radial shaft seal assembly for establishing a seal to separate an oil side from an air side of the assembly is provided. The assembly includes a metal case having a cylindrical wall with an annular leg extending radially inwardly from the cylindrical wall. A primary seal lip is operably attached to the metal case. The primary seal lip is configured for running contact with a rotatable shaft member to separate the oil side from the air side. A debris exclusion member including an annular retainer with a plurality of elongate bristles fixed thereto is fixed to one of the rotatable shaft member or the metal case, wherein the bristles extend radially free ends, with a clearance gap being established between the free ends and the other of the rotatable shaft member and the metal case.