Clamping and/or braking device for humid environments

An annular elastic element for a clamping and/or braking device, the element comprising:

• an annular spring plate, the annular spring plate having a first annular side surface and a second annular side surface;
• a first sealing element, the first sealing element being arranged on the first side surface of the spring plate;
• a second sealing element, the second sealing element being arranged on the second side surface of the spring plate, and the second sealing element forming an inner projection in a region of an inner edge of the annular spring plate and forming an outer projection in a region of an outer edge of the annular spring plate;
• characterised in that the first sealing element forms a first projection, and in that the elastic element further comprises:
• a first port seal defining an edge of a first port opening of the first port seal, the edge being suitable for sealing a first port of the clamping and/or braking device for applying a pressure medium to a first pressure chamber of the clamping and/or braking device.