A series of fabricated products for electrically rotatably driven machines, especially alternating current motors for attachment on drives, for alternating current motors having various pole configurations and operable in differing performance classes, voltage classes, and frequency classes, includes a plurality of trunk motors each having a motor housing, a motor terminal box for the provision of electrical current to stator windings mounted in a rotationally symmetrical manner in the motor housing, and a rotor. The rotor has a shaft supported on a bearing bracket. The trunk motor also includes a drive side, a non-drive side, and a shaft end extending outwardly from the non-drive side adapted for the securement thereto of a plurality of differing attachment shafts.