THK HSR30YR1SS(GK) Recirculating Ball Linear Bearing Block

The THK HSR30YR1SS(GK) Recirculating Ball Linear Bearing Block is a compact Y-type carriage designed to ride THK HSR30 series rails, delivering high rigidity, smooth motion, and long service life in demanding motion systems. It employs a four-row recirculating ball construction with SS end, side, and inner seals and a GK integrated lubrication unit for reliable operation in contaminated environments. Key specifications include compatibility with 30 mm rails; overall height 45 mm; block width 59.5 mm; block length 98 mm; carriage height 38 mm; mounting hole spacing 40 × 40 mm; mounting thread M6 × 9 mm; grease nipple B-M6F; dynamic load rating 40.5 kN; static load rating 53.7 kN; weight approximately 0.9 kg; and construction from hardened bearing steel. The block supports four-way equal load distribution and precision-ground raceways to provide high rigidity and low-friction movement, making it suitable for CNC machining centers, industrial robots, semiconductor equipment, automated assembly systems, precision inspection machines, and material handling equipment. It is commonly used by maintenance teams, OEM machine builders, and system integrators for equipment repair, retrofit, expansion, and replacement.