THK HSR30A1SS(GK) Block Bearing

THK HSR30A1SS(GK) Block Bearing is a THK linear guide block designed to ride on a compatible HSR rail for precise, smooth guided travel. The HSR30 designation places it in THK's 30 mm rail family, while the A1SS(GK) suffix identifies the specific mounting, finish variant, and configuration of the block within the HSR product line. This block bearing serves as the movable element in linear guidance assemblies used in automation, robotics, and machine tools, providing controlled translation along a straight path when paired with a THK rail system. Its compact form in the HSR family supports compact layouts and repeatable positioning in industrial equipment that requires dependable linear motion.