THK HSR30A Linear Rail With Linear Ball Bearing Block

The THK HSR30A Linear Rail with Linear Ball Bearing Block is a precision linear motion assembly featuring a THK HSR30A recirculating ball bearing block (Block Type A, Standard Flange) mounted on an HSR30 profile guide rail. Built with THK's Four-Way Equal Load technology, it delivers high rigidity and smooth, low-friction travel with equal load capacity in radial, reverse radial, and lateral directions for demanding motion-control tasks, and it belongs to the HSR Global Standard LM Guide series with a recirculating ball design. Commonly installed in CNC machining centers, industrial robots, semiconductor equipment, automated production systems, and precision machinery, this assembly is used by maintenance teams and system integrators for equipment repair, retrofit, expansion, and replacement. Technical specifications include rail size 30 mm; block dimensions: height 42 mm, width 90 mm, length 98 mm; mounting hole spacing B×C 72×52 mm; rail width 28 mm, rail height 26 mm, mounting hole pitch 80 mm; basic dynamic load rating 40.5 kN; basic static load rating 53.7 kN; block weight approximately 1.1 kg; rail weight approximately 4.8 kg/m; material hardened bearing steel; lubrication compatible with grease or oil. Features include precision-ground raceways, four-row ball contact design, high rigidity, low-friction operation, interchangeable Global Standard design, and high positioning accuracy. Common replacements: THK HSR30LA, THK SHS30A, THK HSR30AM.