Abstract: The invention relates to a disk brake unit for a vehicle wheel including a hub and a brake disk. The brake disk includes an outer ring and an inner ring, the inner ring and the outer ring being non-rotatably linked together. The outer ring includes a friction ring. The inner ring includes an internal surface with inner dogs for contacting a hub. The brake disk is adapted to prevent heat from being transmitted from the friction ring to the internal surface.

Abstract: The invention relates to a disk brake unit for a vehicle wheel with a hub having a rotational axis and with a brake disk which is slidable in the direction of the rotational axis but solidly connected to the hub both in circumferential and in radial direction, the hub being provided on its external casing for this purpose with outer dogs and the brake disk having an internal casing which is in contact with the external casing and is provided with inner dogs. The brake disk is provided with an outer ring and with an inner ring, the inner ring only forms the internal casing with the inner dogs, the inner ring and the outer ring are non-rotatably linked together, the outer ring only is provided with a friction ring, and means are provided which prevent heat from being transmitted from the friction ring to the internal casing, said means being arranged between friction ring and internal casing.

Abstract: The invention relates to a drag bearing of a bearing and brake unit for a vehicles wheel, the drag bearing having a) at least one holding device for fastening the drag bearing, b) an integrated cylinder of a cylinder and piston unit provided with a cylinder's axis and c) a wheel carrier which is centered on a rotational axis and is configured to receive a wheel bearing. The drag bearing is furthermore provided with d) a guide arm which is connected integral with the remaining drag bearing, which is oriented substantially parallel to the rotational axis and to the cylinder's axis and which is provided with guide ways serving to receive brake pads.