A non-destructive tire testing device has at least one measuring head, a positioning means for moving the measuring head between a park position (I) and a measuring position (II), a pressure chamber in which the test object can be subjected to a prescribed pressure, and a sub-frame on which the test object can be mounted during the test. The sub-frame is supported on a first vibration reducing bearing element. The pressure chamber has a hood which is supported separately from the sub-frame on a second vibration reducing bearing.