an electrical rotating machine rotor , in particular for a motor vehicle , comprising a central shaft , an annular core coaxial with the shaft and two polar wheels which are axially arranged on either side of the core , of the type wherein the shaft includes at least one drive section which is axially force - fitted into a fixing bore of at least one component of the rotor so as to secure in rotation at least one of the two polar wheels of the rotor to the shaft , an intermediate sleeve being radially interposed between each polar wheel and the central shaft , and on which sleeve is mounted said polar wheel . the invention also concerns a method for making such a rotor .