Wheel disc for a disc wheel and a disc wheel therewith

A wheel disc for a disc wheel for commercial vehicles, with an at least essentially radially extending hub connection flange and with an essentially cylindrical disc rim which can be connected to a wheel rim and with a transition region extending between the disc rim and the hub connection flange, wherein the transition region is provided with ventilation holes distributed over a circumference, wherein the ventilation holes extend in a radial direction from a first inner pitch circle located closer to the connection flange to a second outer pitch circle located closer to the disc rim, wherein the transition region in radial section in a first sectional area extending between the hub connection flange and the radially inner first pitch circle has a material thickness reduced by at least 30% in relation to a material thickness of the hub connection flange and/or wherein the ventilation holes have a hole region with a hole width in disc circumference direction increasing from the radially inner first pitch circle towards the radially outer second pitch circle.