THK Curve Guide Rail HCR12A+60/100R HCR15A+60/150R HCR15A+60/300R HCR15A+60/400R Curved Guide Rail

The THK HCR Series is a high-precision curve guide rail engineered specifically for accurate circular motion control in industrial applications. Drawing on the proven structural design of THK’s HSR linear guide, this series redefines reliability and flexibility in arc motion solutions, catering to the evolving needs of precision machinery and automation systems.

At the heart of the HCR Series lies its advanced four-row ball circulation system. Balls roll along precision-ground raceways on both the LM rail and block, while end plates integrated into the block enable smooth, continuous circulation. This design not only ensures zero-clearance and highly repeatable circular motion but also grants the series equal load-bearing capacity in four directions—radial, reverse radial, and both lateral sides, making it suitable for complex load conditions.

One of the standout advantages of the HCR Series is its exceptional design flexibility. Multiple LM blocks can move independently on the same curved rail, allowing efficient structural design by positioning blocks exactly at load points. Additionally, it breaks through the limitations of traditional swivel bearings by enabling circular motion with a radius of over 5 meters, a capability crucial for large-scale precision equipment.

Installation and maintenance are streamlined with this series. Simply mounting the LM rail and blocks with bolts completes assembly, significantly reducing setup time compared to sliding guides or cam followers. The design also facilitates easy disassembly and reassembly of circular-motion equipment, enhancing operational efficiency. Widely used in CNC machines, medical imaging devices, robotic arms, and turntables, the THK HCR Series stands as a trusted choice for high-precision arc motion needs.