THK LM Guides The HSR series of THK individual linear motion guide blocks are quick and easy to replace, providing trouble-free maintenance and quick downtime. The ball travels on 4 precise tracks on the LM rail through the LM block and has an end plate built into the LM block.Each row of balls is placed at a 45 ° contact angle to ensure that the load rating applied to the LM block is uniform in all 4 directions (Radial, reverse, and lateral directions), providing a constant low friction factor and high stiffness.Blocking self-adjustment ensures accurate and smooth linear motion by absorbing mounting errors even under preload.Total height (M) (mm) 24 Material: Carbon Steel