Patent ID: 8632431

Claim:
A drive wheel of an auxiliary unit belt drive of an internal combustion engine, comprising: a running casing, which is operatively connectable to a traction mechanism; a hub, which is rotationally fixedly connectable to a drive axle of an auxiliary unit; and a damping device, which is arranged so as to act between the running casing and the hub, for reducing rotary oscillations, having a spring store which is arranged so as to act between the running casing and the hub, wherein the running casing is composed of a running part, a driver part and a spring receptacle, with the running part being rotationally, fixedly and permanently connected directly to the driver part, wherein the running part is an annular section which has an outer periphery with a plurality of grooves and a contour that is matched to the traction mechanism, wherein the driver part is a flat ring which has a radially outwardly extending profiling at an outer periphery of a radially outer end region, wherein the spring receptacle has at least one continuously extending, uninterrupted recess with radial projections therein that interacts with and corresponds to a shape of the radially outwardly extending profiling of the driver part, and wherein the radially outward extending profiling of the driver part engages directly into the recess of the spring receptacle, connecting the driver part radially to the spring receptacle in a form-locking manner such that the driver part is housed entirely within the spring receptacle.