DIAPHRAGM FOR PRESSURE-MEDIUM-ACTUATED BRAKE CYLINDERS WITH CENTRING RING

摘要

The invention relates to a diaphragm (24) for pressure-medium-actuated br ake cylinders (1), comprising a radially outer fastening edge (32) for fixin g the diaphragm (24) to the brake cylinder (1). The invention provides that at least one centring ring (40) which extends in the axial direction and whi ch is offset radially inward in relation to the fastening edge (32) is forme d on the diaphragm (24), by means of which centring ring (40) said diaphragm (24) can be centred against a radially inner peripheral surface (42) of a w all (44) of the brake cylinder (1).