A mounting device for positioning or mounting a sanitary article, in particular a toilet bowl, with a positioning frame, which is not bearing the sanitary article and which is positioning the sanitary article, with at least two vertical struts and one lower traverse, which connects the at least two vertical struts with each other, wherein the positioning frame further comprises at least one foot support, which is in movable connection with one of the vertical struts and which is designed in an arrestable manner with respect to said vertical strut, wherein the positioning frame is supportable on a building floor, and with a supporting element, which can be brought into connection with the positioning frame and which bears the sanitary article, which comprises a foot part, which is designed in a movable manner with respect to the positioning frame and which is designed in an arrestable manner with respect to the supporting element, wherein the supporting element by means of the foot part is supportable on the building floor, wherein the at least one foot support and the foot part are extendable to the same level with respect to the positioning frame standing in the vertical, wherein the supporting element comprises at least one mounting part which is securely mounted on the supporting element for mounting the sanitary article and wherein the at least one mounting part is in contact with a threaded rod, which projects essentially perpendicular from the positioning frame and from the supporting element and which can be brought into contact with the sanitary article, wherein a bearing element is provided per threaded rod, wherein the bearing element comprises an opening, through which the threaded rod can be passed through the bearing element, and wherein the bearing element extends from the mounting part to a vertical web portion of the traverse, such that a bending moment acting on the threaded rod is transmittable to the traverse and to the supporting element being in connection with the traverse. with a positioning frame, which is not bearing the sanitary article and which is positioning the sanitary article, with at least two vertical struts and one lower traverse, which connects the at least two vertical struts with each other, wherein the positioning frame further comprises at least one foot support, which is in movable connection with one of the vertical struts and which is designed in an arrestable manner with respect to said vertical strut, wherein the positioning frame is supportable on a building floor, and with a supporting element, which can be brought into connection with the positioning frame and which bears the sanitary article, which comprises a foot part, which is designed in a movable manner with respect to the positioning frame and which is designed in an arrestable manner with respect to the supporting element, wherein the supporting element by means of the foot part is supportable on the building floor, wherein the at least one foot support and the foot part are extendable to the same level with respect to the positioning frame standing in the vertical, wherein the supporting element comprises at least one mounting part which is securely mounted on the supporting element for mounting the sanitary article and wherein the at least one mounting part is in contact with a threaded rod, which projects essentially perpendicular from the positioning frame and from the supporting element and which can be brought into contact with the sanitary article, wherein a bearing element is provided per threaded rod, wherein the bearing element comprises an opening, through which the threaded rod can be passed through the bearing element, and wherein the bearing element extends from the mounting part to a vertical web portion of the traverse, such that a bending moment acting on the threaded rod is transmittable to the traverse and to the supporting element being in connection with the traverse.