Abstract: A unitary air bleed device of an elastomeric deformable material and has an integrally formed head portion with a vent hole and a cylindrical portion with a connecting passage formed therethrough. The connecting passage communicates with the vent hole of the head portion. The deformation of the air bleed device permits the air bleed device to be mounted to an enclosed housing by press fitting. When mounted, the cylindrical portion extends into the housing in such a direction to prevent the oil entry into the connecting passage.

Abstract: A device for use with a wheel axle shaft and housing for preventing oil that leaks from within the axle housing from escaping along the axle shaft to a brake device, comprises an oil passage along the axle shaft to discharge the leaked oil from the axle shaft, and an annular member securely mounted on the axle shaft and in the oil passage to splash the leaked oil guided thereon radially and outwardly by applying a centrifugal force to the oil, thereby effectively discharging the leaked oil from the axle shaft in order to prevent the leaked oil from travelling along the axle shaft to reach the brake device.