In order to provide a particularly homogeneous pressure and temperature profile in a gas cushion for the levitating support of glass or glass ceramic, the invention provides a device (19) for transporting or supporting glass ceramic or glass, which comprises at least one diaphragm (1, 2) that has at least one continuous bearing surface (3) and at least one gas feed chamber (51-55) and at least one gas discharge chamber (71-75), the gas feed chamber (51-55) and the gas discharge chamber (71-75) having a gas-permeable connection to the bearing surface (3).