THK’s LM Guide RSR/RSR N SERIES represents a specialized class of miniature linear motion guides utilizing a full-ball type design, engineered to deliver exceptional precision and reliability in compact, space-constrained applications. This series is characterized by its compact cross-section and the implementation of a full-ball, four-row circular arc groove design. In this configuration, balls are arranged in a complete loop, making contact at four points on the raceway. This architecture provides a significantly larger load-bearing capacity and higher rigidity compared to many conventional miniature guides, allowing it to withstand substantial loads—including radial, reverse-radial, and lateral moments—from all directions. The compactness is a key feature, enabling the integration of high-performance linear motion into machinery and devices where installation space is at a premium.

The performance advantages of the RSR/RSR N SERIES are a direct result of its meticulous engineering. The full-ball recirculation system ensures smooth, low-friction motion with high positional accuracy and excellent reproducibility. This translates into minimal stick-slip, a critical factor for applications requiring precise start-stop movements or fine incremental positioning. The guides are designed for high-speed operation with minimal vibration and noise, contributing to the overall efficiency and quiet performance of the host equipment. Furthermore, the series offers enhanced durability and a long service life, even under demanding operating conditions, reducing maintenance requirements and total cost of ownership. For ease of installation and alignment, many models incorporate features such as reference marks and a sealed design to prevent contamination from dust and debris, which is vital for maintaining precision in unclean environments.

Typical applications for the THK RSR/RSR N SERIES are found across industries where miniaturization, precision, and reliability are paramount. In industrial automation and machinery, these guides are integral components in compact CNC stages, precision assembly robots, pick-and-place units, and the linear axes of semiconductor and electronic component manufacturing equipment. Within the automotive sector, they are employed in advanced sensor testing apparatus, precision fuel injection system manufacturing jigs, and intricate automated inspection devices. The series is also ideally suited for precision equipment such as medical and diagnostic devices, including DNA analyzers and lab automation systems, optical and measuring instruments for coordinate measurement and microscopy, and sophisticated office automation equipment like high-speed scanners and printers. By offering a robust, miniature solution, the THK LM Guide RSR/RSR N SERIES enables designers and engineers to push the boundaries of miniaturization without compromising on the critical performance metrics of load capacity, accuracy, and smooth motion.