Cartesian robot miniature actuator actuator CARTESIAN ROBOT The MCH Monocarrier (linear precision actuator) features super- high rigid rails suitable for cantilever beams and many other factory automation applications. These linear precision actuators offer enhanced Cartesian Robots rail rigidity, LED-equipped sensors along with K1 Lubrication Units and excellent corrosion resistance with standard low-temperature black chrome coating. Double sliders are available to improve moment load capacity and straightness. While this hybrid ceramic bearing has the same design as the S and H types, its rings are made of SHX steel, a new steel developed by NSK. SHX has excellent seizure and wear resistance during critical lubrication shortages. Also, its heat resistance is nearly equal to M50 steel, which is widely used in ball bearings for jet aircraft engines. With the x-y stage, grease lubrication is feasible at even higher speeds than the H type. In terms of both surface and subsurface fatigue, SHX steel provides longer life.