Abstract: A clutch and/or brake module has a heat sink which is attached to a transmission housing for the purpose of discharging heat. The brake module further has a brake disc, which is connected to a rotational member formed by a shaft (schematically indicated by a center line). The brake disc is provided on one side with a lining and faces with this side towards the heat sink. The brake is a dry brake and is not lubricated. The brake module further has an actuation system (cylinder with piston movable therein, schematically indicated by an arrow) which can exert an axial pressing force directly on the brake disc. The brake disc is located axially between the heat sink and the actuation system. The cooling plate is secured to a transmission housing, a part of which is schematically shown.