A test device for the tribological examination of materials, comprising: at least one first test body having a first test surface, a drive unit which is able to be oscillatingly and rotatively driven for the translational and rotational movement of the at least one first test body, a measuring device for on the one hand measuring forces acting substantially parallel to the direction of an oscillating application of force and in the circumferential direction of a rotational application of force of the drive unit of an at least second test body; and for on the other hand detecting the test forces acting between the at least one first test body and the at least one second test body, a load regulating device being further provided which regulates the test force acting between the two test bodies (33, 23), wherein the predefined test force is applied to the test bodies (33, 23) via a decoupled bearing of the drive unit, wherein the functional principle of the decoupled bearing is selected from among a group including magnetic, hydrostatic, hydrodynamic, aerostatic and aerodynamic effects; and wherein bracing devices are provided which transmit the test movement directly from the drive unit to the test configuration, thereby allowing compensating motion in the direction of the application of the test force, wherein the test device is allocated a computing device with at least one microprocessor which is controlled by a program stored in a memory allocated to the microprocessor. at least one first test body having a first test surface, a drive unit which is able to be oscillatingly and rotatively driven for the translational and rotational movement of the at least one first test body, a measuring device for on the one hand measuring forces acting substantially parallel to the direction of an oscillating application of force and in the circumferential direction of a rotational application of force of the drive unit of an at least second test body; and for on the other hand detecting the test forces acting between the at least one first test body and the at least one second test body, for on the one hand measuring forces acting substantially parallel to the direction of an oscillating application of force and in the circumferential direction of a rotational application of force of the drive unit of an at least second test body; and for on the other hand detecting the test forces acting between the at least one first test body and the at least one second test body, a load regulating device being further provided which regulates the test force acting between the two test bodies (33, 23), wherein the predefined test force is applied to the test bodies (33, 23) via a decoupled bearing of the drive unit, wherein the functional principle of the decoupled bearing is selected from among a group including magnetic, hydrostatic, hydrodynamic, aerostatic and aerodynamic effects; and wherein bracing devices are provided which transmit the test movement directly from the drive unit to the test configuration, thereby allowing compensating motion in the direction of the application of the test force, wherein the test device is allocated a computing device with at least one microprocessor which is controlled by a program stored in a memory allocated to the microprocessor.