Abstract: A disk and hub assembly for an electromagnetic clutch, comprising: a plate including a stopper, which is projected from a face thereof and having a bolt through hole, and an inner ring portion folded from the outer periphery of the plate; a hub including a hub body, which is perforated through both ends and has a coupling hole to be coupled to a drive shaft of a compressor, a seating space for receiving and seating the stopper and a flange outwardly extended from an end of the hub body to be coupled to the plate; an outer including an outer ring portion surrounding the inner ring portion at a predetermined interval and a flange outwardly and angularly folded from the outer ring portion; a damper rubber received between the inner ring portion and the outer ring portion; and a disk coupled to the flange of the outer.