Prevents roller skewing
   The use of a roller cage allows the rollers to circulate while uniformly aligned, preventing the rollers from skewing when entering the block load area, and reducing variation in rolling resistance to obtain stable and smooth movement.

Long-term, maintenance-free operation
   The use of a roller cage eliminates friction between rollers, and retains lubricant in the grease pockets between adjacent rollers, ensuring the required amount of lubricating oil is supplied to the curved contact surfaces of the spacers and rollers of the circulating path to realize long-term maintenance-free operation.

Ultra-High rigidity
   Ultra-high rigidity is achieved by using rollers having a low degree of elastic deformation for the rolling elements and an optimized roller diameter (0Da) and length (L). Also, each row of rollers is arranged at a 45⁰ contact angle so that an equal load rating is applied in four directions (radial, reverse radial and lateral directions).

Global standard dimensions
   The dimensional design complies with the type HSR developed by THK as the pioneer of linear motion systems and has become the global standard.