Cooling air feed to car wheel brake

摘要

The cooling air feed consists of a fan impeller coaxial to the centre axis of the wheel brake, whose drive is coupled to the car wheel (1). There is an arrangement, forming a redn. selecting a specified formula related to the car wheel and the fan impeller speed respectively. The arrangement in a rolling bearing (17), consisting of a fixed inner race (18) an outer race (20) rotating about the centre axis (32) of th wheel drive brake (4), coupled non-rotatably to the fan impeller, and rolling bodies (19) between the two races, rotating about their centre axes and about the brake center axis. A follower (30) on the car side coacts with the roller such that their angular velocity equals that of the car wheel.