An electromagnetic traction motor is used to impart a linear motion on a movable member. A contact plate is mounted to a slide of the movable member. The contact plate has a surface which is in mechanical contact with the electromagnetic traction motor which is preloaded against the surface of the contact plate. The electromagnetic traction motor has a center body part with a triangular shaped portion. The triangular shaped portion forms a bearing surface. Below the bearing surface a deformable structure is established. A deformation of the deformable structure is initiated by at least two electromagnetic coils, which are energized in an specific manner.
