THK LM Guide SSR Series THK individual linear motion guide blocks are quick and easy to replace for trouble-free maintenance and quick downtime. The caged ball design provides high speed rotation, low noise levels, and long service life.The ball travels on 4 precise tracks on the LM rail through the LM block, and there is an end plate built into the LM block.Each row of balls is positioned at a 45 ° contact angle, and the load rating applied to the LM block is uniform in all 4 directions (Radial, reverse, and lateral directions), providing a constant low friction coefficient and high stiffness.Callout size 15 Total height (M) (mm) 24