THK 2RSR12WVMUU470M Ball Bearing LM Guide Block

The THK 2RSR12WVMUU470M Ball Bearing LM Guide Block is a compact, two-carriage miniature linear guide assembly in THK’s RSR-WVM series, with two stainless steel RSR12WVM blocks mounted on a 470 mm precision-ground stainless rail. Designed for high-accuracy positioning in tight spaces, it delivers smooth travel, low friction, and four-way equal-load capability. The wide, long-block configuration (WVM) increases rigidity, while the 12 mm guide size and stainless steel construction provide corrosion resistance for demanding environments. Each carriage houses a recirculating ball bearing system and uses UU double-end seals, supported by a dynamic load rating of 3.86 kN and a static load rating of 5.57 kN. Block dimensions are 40 mm wide, 14 mm high, and 44.5 mm long. Lubrication is compatible with grease or oil, with preload options including Normal or C1 light preload depending on configuration. Common applications span semiconductor equipment, medical devices, laboratory instruments, optical inspection systems, and compact automation machinery, where machine builders, maintenance technicians, and system integrators rely on precise linear guidance in limited installation space.