Abstract: The invention provides a device for testing motor vehicle wheels, tires, wheel hubs, wheel bearings, and wheel bolts under loading conditions similar to operating conditions, including a mounting device for pivoting attachment of a vehicle wheel; a drum arranged around the vehicle wheel in such a way that the vehicle wheel can be brought into rolling contact with the inner circumferential surface of the drum; a vertical or radial loading device which, in order to apply a vertical or radial force acting in the vertical or radial direction of the vehicle wheel onto the mounting device, is connected with the latter; a lateral or axial loading device for applying a lateral or axial force acting in the lateral or axial direction of the vehicle wheel, in order to apply the lateral or axial force onto the mounting device, the lateral or axial loading device being connected with the mounting device; at least one ring located on the inner circumferential surface of the drum, which ring is arranged as a thrust ring adj

Abstract: The invention provides a device for testing trailer couplings which transmit a traction to a trailer by way of a trailer coupling ring on the drawbar of the trailer, the test being carried out under loading conditions similar to those occurring in practice, preferably with inclusion of the construction for fixing the trailer coupling, in particular the tail cross-member to which the trailer coupling is attached and optionally frame parts adjoining the tail cross-member. A longitudinal force generating device which produces a longitudinal force acting in the direction of traction of the connection between the trailer coupling and the trailer coupling ring and a vertical force generating device which produces a vertical force extending perpendicularly or approximately perpendicularly to the direction of action of the traction are coupled to a force transmitting connecting member to which can be attached the trailer coupling ring which is connected to the trailer coupling.

Abstract: The invention provides a process and an apparatus for testing commercial icle axles and/or springs and/or components adjacent thereto under load conditions resembling those occurring in practice. An entire commercial vehicle axle with two commercial vehicle springs and original attachment parts are tested by the introduction of low frequency deformations of vertical forces into a supporting assembly and of lateral forces, longitudinal forces and high frequency vertical wheel forces in each case into a wheel substitute or wheel or a brake force transmitting lever. In the course of this test, the supporting assembly is tilted about a pivot shaft or pivot axis which is displaceable in the vertical direction so that the axle of the commercial vehicle remains parallel to the horizontal.