THK’s LM Stroke Die Setting Ball Cage Model KS BS BS SERIES represents a specialized advancement in linear motion technology, engineered to address the demanding requirements of die setting and precision positioning applications in industrial machinery. This series incorporates a unique ball cage mechanism that securely retains the balls within the LM block, preventing them from falling out during stroke operations—such as when the LM block is separated from the rail for die changes or maintenance. This design eliminates the need for manual ball handling, reducing downtime and minimizing the risk of contamination or loss of components in high-paced manufacturing environments.

Key technical features of the KS BS BS SERIES include a robust ball cage structure that ensures smooth, reliable recirculation of balls even during full-stroke disengagement. The system utilizes THK’s precision-ground rails and blocks, manufactured from high-carbon chromium bearing steel for exceptional hardness and wear resistance. Surface treatments, such as black oxide or specialized coatings, are available to enhance corrosion protection in harsh operating conditions. The series is designed with optimized ball groove profiles and preload adjustments, delivering high rigidity, minimal deflection, and consistent accuracy under heavy loads. Additionally, the compact and modular design facilitates easy integration into existing machinery layouts, with options for custom stroke lengths and mounting configurations to suit specific application needs.

Performance advantages of this series are substantial, starting with a significant reduction in die changeover times—often by over 50% compared to conventional systems—due to the effortless stroke functionality. The retained ball cage design maintains lubrication within the assembly, extending service intervals and promoting long-term reliability with minimal maintenance. Operators benefit from enhanced safety, as there is no exposure to loose balls or complex reassembly procedures. The system achieves high positional repeatability (within microns) and sustains smooth motion at varying speeds, contributing to improved product quality and throughput. Its ability to handle moment loads and vibrations effectively makes it suitable for dynamic applications where precision and stability are critical.

Typical applications span industrial sectors requiring frequent tooling adjustments and precise linear guidance. In automotive manufacturing, the KS BS BS SERIES is deployed in stamping presses for rapid die changes in body panel production, as well as in welding and assembly fixtures where repositioning is routine. Industrial machinery applications include injection molding machines for mold setting, metalforming equipment, and automated transfer lines that demand reliable, high-accuracy positioning. Precision equipment sectors, such as semiconductor manufacturing or optical device assembly, leverage this series for stages and slides that undergo periodic recalibration or component replacement. By combining durability, ease of use, and technical sophistication, THK’s LM Stroke Die Setting Ball Cage Model KS BS BS SERIES enables industries to achieve higher efficiency, reduce operational costs, and maintain consistent performance in rigorous production environments.