THK HSR30 Four Way Equal Load Type Linear Motion Guide Block

The THK HSR30 Four-Way Equal Load Linear Motion Guide Block is a precision recirculating ball bearing block designed for THK HSR30 rails with a 30 mm rail size. Its Four-Way Equal Load design provides equal load capacity in radial, reverse radial, and lateral directions—backed by a 45° four-row ball arrangement and precision-ground raceways for high rigidity and accurate positioning—while offering self-adjusting capability and an interchangeable design for long service life. Made from hardened bearing steel and compatible with grease or oil lubrication, this block supports mounting in all directions and is widely used in CNC machining centers, factory automation, robotic positioning systems, semiconductor equipment, packaging machines, and material handling; common replacements include THK SHS30, HSR30A, and HSR30CA blocks, making it a go-to choice for maintenance teams, OEM builders, and system integrators performing repairs, retrofits, expansions, or replacements.