Patent ID: 8911313

Claim:
A method for the production of a one-piece, multiple wheel for a traction mechanism from a metal material comprising: configuring at least one of at least two adjacently disposed single wheels as a finished sprocket wheel, a finished gear wheel, or a finished toothed belt wheel, each wheel comprising a wheel body, an outer circumference, and teeth with different geometry for engaging the traction mechanism arranged in a distributed manner over the outer circumference; and producing the finished sprocket wheel, the finished gear wheel, or the finished toothed belt wheel from a preform for a sprocket wheel contour, a gear wheel contour or a toothed belt wheel contour, the preform having a rough contour configured in at least approximately an evolvent shape, and a tooth thickness of the rough contour, in axial view, is greater than a tooth thickness of a final contour of the finished sprocket wheel, the finished gear wheel, or the finished toothed belt wheel; wherein the producing includes at least reforming the rough contour of the preform by non-machining reforming, the non-machining reforming comprises rolling, such that the metal material of the preform is brought at least partially from an area of excess dimension of a tooth flank into a tooth head region; wherein a maximum dimension of an excess width in the area of excess dimension of the tooth flank can have a value selected from a range having an upper limit of 25% relative to the tooth thickness of the final contour; wherein the finished toothed belt wheel can be produced from the preform for the sprocket wheel contour, the gear wheel contour, or the toothed belt wheel contour; wherein the finished sprocket wheel can be produced from the preform for the gear wheel contour, the toothed belt wheel contour, or the sprocket wheel contour; wherein the finished gear wheel can be produced from the preform for the toothed belt wheel contour, the sprocket wheel contour, or the gear wheel contour.