Vehicle brake cylinder with tilting a rigid brake piston seal arrangement toleranced

The invention relates to a brake cylinder (44) of a vehicle, in which a pressure-medium-actuated brake piston (4) is guided, which is defined a brake chamber (60) and connected to a force acting on brake actuation elements brake piston rod (48), wherein a pressure medium connection for feeding and / or discharge of pressure fluid is provided into and from the brake chamber (60) and the brake piston rod (48) together with the brake piston (4) during an actuating stroke in from a central axis (50) of the brake cylinder (44) pivots tilted positions. The invention provides that the brake piston (4) of rigid construction and at its radially outer peripheral surface with a along a radially inner cylinder wall (12) of the brake cylinder (44) guided in guide surface (56) is provided in the form of a spherical segment of an imaginary sphere whose midpoint (58) on the central axis (50) of the brake cylinder (44), and with at least one in a radially outer annular groove (6) of the brake piston (4) radially movable resilient sealing element (2) which on its from the radially inner cylinder wall pioneering (12) of the brake cylinder (44) side defines an annular space (36) together with a groove bottom (24) of the annular groove (6) which communicates with the braking chamber (60) in such a manner in flow connection, that the contact pressure of the outer diameter of the sealing element (2 ) against the radially inner cylinder wall (12) of the brake cylinder (44) depending on the in ...