THK’s LM Guide SRN-G/SRN-GLR/SER full roller type linear motion systems redefine high rigidity and precision in demanding industrial applications. Engineered with a unique full roller recirculation mechanism, these guides employ cylindrical rollers arranged in a compact, low-profile design that significantly lowers the center of gravity. This configuration enhances moment rigidity and load capacity while maintaining smooth, precise linear motion. The series features a rigid, one-piece track rail and a compact block that integrates the roller retainer, ensuring exceptional stability and durability under heavy loads and high moment conditions.

Key technical features include the full roller recirculation system, which minimizes friction and delivers high positional accuracy. The low center of gravity design improves resistance to overturning moments, making the system ideal for applications subject to significant side loads or vibrations. With precision-ground raceways and optimized roller contact, the SRN-G/SRN-GLR/SER series achieves ultra-high rigidity—up to twice that of conventional ball-based LM guides—while maintaining low noise and minimal maintenance requirements. The series is available in various accuracy grades and preload options, allowing customization for specific performance needs, and includes seals and wipers to protect against contaminants in harsh environments.

Performance advantages are evident in the system’s ability to sustain high loads with minimal deformation, ensuring long-term accuracy and reliability. The full roller design distributes loads evenly across a larger contact area, reducing wear and extending service life even under continuous operation. This results in improved dynamic response, reduced vibration, and enhanced machining or positioning precision. Additionally, the low center of gravity contributes to system stability, reducing the risk of deflection in high-speed or heavy-duty applications.

Typical applications span industrial machinery, automotive systems, and precision equipment where rigidity and accuracy are paramount. In industrial automation, these LM guides are used in CNC machining centers, grinding machines, and heavy-duty transfer systems to support high-precision cutting and material handling. The automotive industry employs them in robotic welding arms, assembly line positioning units, and test equipment that demand repeatable motion under variable loads. For precision equipment, the SRN-G/SRN-GLR/SER series is integral to semiconductor manufacturing devices, optical alignment systems, and medical imaging equipment, where stability and minimal deflection are critical to operational success. By combining ultra-high rigidity with a low center of gravity, THK’s full roller type LM guides provide a robust solution for applications requiring uncompromising performance and durability.