For the comfort problem of brake squeal a two-degree-of-freedom model was published in [8]. This model consists of a rigid wobbling disk in frictional contact with idealized brake pads and captures the salient features of a disk brake in a rather obvious way. In [9] the rigid wobbling disk was replaced by a rotating Kirchhoff plate. Furthermore, in [10] in- and out-of-plane vibrations of a rotating plate are considered in the context of squeal. All these investigations showed new features related to their specific extension of the model but also confirmed that the basic excitation mechanism is captured by the rigid wobbling disk.