Abstract: A disc brake assembly for a vehicle wheel wherein the wheel includes a hub journaled to an axle on the vehicle and a housing mounted to the vehicle, an annular rotor disc (10) within the housing and means mounting the rotor disc to the wheel which comprises an annular hub portion. The rotor disc (10) includes an annular peripheral portion (22) relative to an axial axis with an outer peripheral surface (20) and at least a first radial planar friction surface (12) on the annular peripheral portion (22). The rotor disc (10) has a plurality of circumferentially spaced-apart slots (26) extending axially through the peripheral portion (22) and inwardly towards the axial axis from the outer peripheral surface (20) thereof.

Abstract: A ventilated disc brake assembly including an annular housing mounted to the vehicle, The disc has a first radial planar friction surface and a first brake shoe is provided adjacent the first friction surface movable. The first brake shoe is a radial annular plate having at least a planar surface to engage the first planar friction surface. A movable spring abutment is mounted for axial movement within the housing between the intermediate wall and a housing wall such that the intermediate wall is between the movable spring abutment and the first brake shoe. Rigid pusher link members extend between the spring abutment and the first brake shoe. Springs are arranged in an annular array and extend between the housing wall and the spring abutment such that the springs urge against the spring abutment to press the first brake shoe against the first friction surface of the disc.

Abstract: A ventilated brake assembly for a vehicle wheel has a housing adapted to be contained in the wheel. At least an annular rotor disc is mounted within the housing for rotation with the wheel, and the disc has a plurality of circumferentially spaced channels extending from the periphery of the disc towards the center to communicate with central openings at the inner margin of the annular disc such that air can pass from the central openings at the inner margin of the annular disc to exhaust at the outer periphery thereof in order to dissipate heat generated at the disc. Openings are provided in the brake assembly to allow air flow from the exterior of the brake assembly through the openings. A cover forms a plenum covering the openings in the brake assembly and a scoop has an open end directed in the direction of air flow and the scoop converges to the plenum.

Abstract: An improved truck disc brake using a spring loaded safety brake and a pneumatic bladder for releasing the safety brake as well as a service brake enhancing bladder and a pair of rotor brake discs. The brake discs are ventilated and include ventilation channels extending radially thereof and vent air is deflected into the brake assembly by means of a scoop on the exterior of the brake assembly passing through openings in the brake assembly and the rotor brake discs act as an impeller moving the ventilation air outwardly thereof to dissipate the heat. A wear gauge is provided to determine the wear of the brake linings and discs and a quick release valve is mounted in the brake assembly adjacent the pneumatic bladder related to the service brake, to quickly release the air when required. Temperature sensors are provided within the brake assembly to read the temperature of the brake assembly.

Abstract: An improved truck disc brake using a spring loaded safety brake and a pneumatic bladder for releasing the safety brake as well as a service brake enhancing bladder and at least a pair of rotor brake discs. The brake discs are ventilated and include ventilation channels extending radially thereof and vent air is deflected into the brake assembly by means of a scoop on the exterior of the housing passing through openings in the housing and the rotor brake discs act as an impeller moving the ventilation air rearwardly thereof to dissipate the heat. A wear gauge is provided to determine the wear of the brake linings and a quick release valve is mounted in the brake assembly adjacent the pneumatic bladder related to the service brake, to quickly release the air when required. Temperature sensors are provided within the brake assembly to read the temperature of the brake assembly.

Abstract: In a disc brake for a heavy road vehicle there is provided a mechanically preloaded brake assembly which includes a brake housing, a median wall in the brake housing parallel to the disc which is also in the housing. The disc is mounted to the adapter sleeve of the wheel, and the housing is mounted to an annular ring mounted to an axle of the vehicle. A pressure plate is provided within the housing and located between the annular intermediate wall and the housing wall opposite from the disc and is parallel thereto. The brake lining ring including a backing plate is provided adjacent a radial friction surface of the disc, and push rods extend between the pressure plate and the backing plate of the brake lining ring.

Abstract: In a disc brake for a heavy road vehicle there is provided a mechanically preloaded brake assembly which includes brake housing, a median wall in the brake housing parallel to the disc which is also in the housing. The disc is mounted to the adapter sleeve of the wheel, and the housing is mounted to an annular ring mounted to an axle of the vehicle. A pressure plate is provided within the housing and located between the annular intermediate wall and the housing wall opposite from the disc and is parallel thereto. The brake lining ring including a backing plate is provided adjacent a radial friction surface of the disc, and push rods extend between the pressure plate and the backing plate of the brake lining ring.