THK HRW21-150L Linear Guide Rail

The THK HRW21-150L Linear Guide Rail delivers compact, high-rigidity linear guidance when used with THK HRW21 bearing blocks, providing smooth, accurate travel in CNC machines, semiconductor equipment, packaging machinery, robotics, and precision inspection systems. It has a 21 mm rail size with a 150 mm length, 37 mm rail width, and 11 mm rail height, through-hole mounting with a 50 mm hole pitch, and a precision-ground raceway finish. Constructed from hardened bearing steel, this wide-rail four-way equal-load guide supports multi-directional loads and is compatible with grease or oil lubrication. Compatible bearing blocks include THK HRW21CA, HRW21CAM, HRW21CR, and HRW21CRM. Maintenance teams, OEM machine builders, and system integrators rely on this rail for machine repairs, rail replacements, automation retrofits, and precision motion system upgrades. Internal reference #212156.