Abstract: The invention relates to a brake piston 1 for a brake caliper 9 of a disk brake, which is produced using working processes from a metallic material, in particular from a flat metal sheet, and is formed in one piece as a unilaterally open pot with a piston longitudinal axis A, with a piston wall 2 and with a piston head 3. There is a need for robust and light as well as alternatively constructed, efficiently producible and well guided brake pistons. The object is achieved firstly in principle on the basis of a cup-shapedly worked brake piston blank 19, in that at least one locally defined, i.e. partially cold-upset or partially ironed, cylindrical piston wall portion is present with a partially deformed piston wall 2 which is configured in adaptively modified manner by plastic material deformation by means of material redistribution (flow) including strain-hardening of its piston wall thickness of sl?x.

Abstract: A brake disc (1) including at least one friction ring (2) and a brake hub (3) connected to the friction ring (2) for conjoint rotation. A side wall section (17) of the brake hub (3) has a plurality of radially oriented deformations (5). A contact surface (7) extending in the radial direction is formed by these deformations (5), and a rotationally fixed connection (8) is established by the contact surface (7) between the friction ring (2) and the brake hub (3). A ratio Da/Di formed from the outer diameter Da of a side wall section (17) of the brake hub (3) and an inner diameter Di of the friction ring (2) is at most 1.01.

Abstract: A thin-walled piston having a multi-part construction for a brake caliper, the piston having a one-piece design with the form of a pot, which is open on one side, a longitudinal axis, a wall and a piston floor, and which can be applied in the region of the piston floor with an axial contact surface to a brake lining, wherein a tubular insert with a cone is fixed in the interior of the piston, the insert forming a bearing for a bushing.