THK HSR20R1SS-GK Precision Linear Guide Block

The THK HSR20R1SS(GK) Linear Guide Block is a compact, narrow-type precision recirculating-ball carriage designed for THK HSR20 rails, delivering smooth, high-rigidity linear motion with four-way equal-load capability and GK interchangeable design for easy replacement across GK components. It uses an R-style narrow carriage with threaded mounting holes and SS end, side, and inner seals to resist contaminants while maintaining low-friction travel. Mounting features include a 32×36 mm footprint with M5×6 mm mounting threads, an overall height of 30 mm, block width 44 mm, and block length 74 mm (carriage height 26 mm); compatible with 20 mm THK HSR20 rails (rail width 20 mm, rail height 18 mm, mounting hole pitch 60 mm). Key specs include a basic dynamic load rating of 19.8 kN, basic static load rating of 27.4 kN, weight approximately 0.25 kg, and construction from hardened bearing steel with a standard grease nipple B-M6F; operating temperature range is -20°C to +80°C. Commonly used in CNC machine tools, semiconductor equipment, industrial robots, medical devices, and factory-automation systems, it is well suited for installations where space is limited and precise, repeatable motion is required, and is commonly selected by maintenance teams, OEM machine builders, and system integrators for repair, retrofit, expansion, or replacement.