Minimal cross section
The one-piese structure with guide rail on both sides of the nut block and a ball screw extending at the center of the nut block forms a highly rigid and precise, ultra-compact linear-motion actuator with only a 15 mm high, 30 mm wide cross section.
Four-way equal load
Two load-bearing ball trains are arranged on each side, constituting a double-row angular contact besign. Since this desing can bear equal rated loads in four direction (upward and downward and right and left), there are no restrictions on the mounting direction of the unit.
The four receways, that carry the ball load, are formed in a circular arc groove, and have no clearances. Therefour, the guideway has high rigidity and fiuc-tuations in frictional resistance due to fluctuating loads are minimized, achieving supreme feeding accuracy
Unlike the conventional LM guide models, the KR15 has an LM rail structure, which provides greater rigidity against overhang and moment load.