... RSR - W type increased effectively the number of steel ball, widened LM orbit range and improve the resisting moment rigidity ... , stainless steel straight axis, linear optical axis, hollow shaft, ball screw, locking nut, machine tool accessories, CF bearing, pneumatic ... and Germany kind dynamic element, Taiwan HIWIN linear guide of silver ball screw, drag chain, etc.! HRW35CAM , THK rail ,the motion ...