... HRW35CRMTHK, HRW17CR HRW21CR HRW27CR HRW35CR THK, RSR type in cross roller guide and linear rolling unit limited stroke type, cage most ... rigidity. Therefore, and parallel use a pair of straight line roller liner, compared to achieve a more compact knot made., more ... guide of silver ball screw, drag chain, etc.! HRW35CAM , THK rail ,the motion of linear guide