THK RSR12ZM Recirculating Ball Linear Guide Block And Rail Assembly

The THK RSR12ZM Recirculating Ball Linear Guide Block and Rail Assembly is a miniature linear guide with an RSR12ZM block mounted on a 14.5-inch (368 mm) precision guide rail, engineered for smooth, high-accuracy motion in compact equipment. It features a stainless steel LM block, rail, and balls with precision recirculating steel balls, corrosion-resistant construction, a four-way equal-load design, and grease lubrication compatibility to deliver high positioning accuracy and low friction. Key specifications include a 12 mm wide rail (7.5 mm tall), a block 27 mm wide by 35 mm long by 13 mm high, mounting holes M3 × 3.2 mm with 20 × 15 mm spacing, a dynamic load rating of 2.65 kN, and a static load rating of 4.02 kN. Common applications span semiconductor manufacturing equipment, laboratory automation, medical diagnostic instruments, electronics assembly machines, optical inspection systems, pick-and-place equipment, miniature CNC machinery, robotics, and precision measuring devices; maintenance teams, OEM machine builders, and system integrators rely on this assembly for repair, retrofit, and replacement of compact linear motion guides.