Schematic representation of the rolling-gliding wear simulator. The two components of the tribological pairing, the base-plate, and the cylindrical counter-body are shown in gray. Normal force is provided by a dead-weight. Sinusoidal oscillation motion of the base-plate is induced by a servo-motor and adjustable eccentric. The free rotational range of motion of the counter-body is limited by adjustable stoppers. Motion of the base-plate and counter-body occurs in a temperature-controlled bath; a second bath (not shown) is provided for an unloaded reference body.