A turbine for a supercharging device of an internal combustion engine may include a turbine wheel which is rotatably arranged about an axis of rotation in a turbine housing. A radial inflow channel may be arranged coaxially to the turbine wheel, which leads to a radial inlet region of the turbine wheel. The inflow channel may be axially bounded on one side by a blade carrier and axially bounded on the other side by a cover disc. A plurality of guide blades may be pivotably arranged on the blade carrier, and a plurality of spacer elements may axially project from the blade carrier. An axial outflow channel may be arranged coaxially to the turbine wheel, which leads from the inlet region to an axial outlet region of the turbine wheel, which may be radially bounded by an inner contour formed complementary to an outer contour of the rotating turbine wheel.