Abstract: Disk brake including a brake caliper and an application device arranged therein for applying force to the brake pads of the disk brake, wherein a component of the application device is a brake lever which can be actuated by a force element and preferably by a pressure cylinder and is composed of a lever arm against which the force element is supported and an application shaft. The application shaft is supported, on one side, against a pressure piece operating in the direction of the brake pads and, on the other side, with the interposition of a shell, against a channel arranged on the inside of the brake caliper, wherein the curvature of the shell is complementary to the curvature of the channel. In order to develop the disk brake and the shell assembly by constructive measures so as to prevent the shell assembly from moving out of the original position even in the case of long-term use and under frequent load caused by braking, an opening of a bore is located in the channel.

Abstract: A drum brake arrangement for vehicle axles has an axle body and a support plate connected thereto. A bearing lever is fixed to the support plate. A brake camshaft has a first and a second end and is actuatable by a brake cylinder. The brake camshaft has a brake cam connected to the first end. A support bearing and another bearing for rotatably supporting the brake cam shaft on the axle body are provided. A slack adjuster is connected to the second end of the brake camshaft and has a housing with a cylindrical bore. The slack adjuster has a worm gear, connected to the brake camshaft, for adjusting the drum brake according to wear of the brake pads. The worm gear has a first profiled section extending parallel to its axis. The brake camshaft has a second profiled section extending parallel to its axis. The first and second profiled sections mesh with one another for fastening the worm gear on the brake camshaft. The slack adjuster has a bearing ring supported in the housing for receiving the bearing lever.