A decoupling device for the bearing arrangement of a shaft carried in a
housing, in particular a shaft of a belt-driven conical-pulley
transmission with a chain that functions as the belt. The decoupling
device includes an outer bearing ring configured with a circularly
cylindrical outer surface and within which the shaft is mounted, and an
inner surface of a housing that encloses the bearing ring outer surface.
At least one radial ondular washer is arranged between the bearing ring
outer surface and the housing inner surface, which allows a limited
relative radial movement between the housing inner surface and the
bearing ring outer surface by elastic deformation of the washer.