Abstract: A brake caliper has a caliper bridge and two legs that are arranged at right angles to the caliper bridge. A housing having a bore for a brake piston is mounted on one leg. The caliper bridge has at least one hollow chamber inside, which is delimited on all sides by supporting walls. Even though the brake caliper exhibits considerable flectional strength it is lightweight.

Abstract: The present invention relates to a disc brake with hydraulically operable brake pads and a mechanical actuating which includes an actuating shaft that is rotatably and sealedly mounted in a bore of a brake housing and acts upon at least one of the brake pads. The present invention focuses on that at least in the area of a shaft duct, a sealing element is provided which is fixed to the actuating shaft so as to rotate along with it and cooperates with at least one associated sealing element and/or mating sealing surfaces in a radial direction. The sealing element bridges a portion of the actuating shaft which is different from the shape of a circle.