Patent ID: 7458721

Claim:
A linear motion rolling guide unit provided with a track-rail which has two raceway faces formed on each of two sides thereof, and a slider which straddles and moves along the track-rail having the raceway faces and incorporates a plurality of rollers forming four endless rolling rows, and comprises two sets of outward guide paths for guiding the respective endless rows of the rollers rolling in one direction and return guide paths for guiding the corresponding endless rows of the rollers rolling in the opposite direction which are provided on each of the two sides of the track-rail having the raceway faces, the outward guide paths being parallel to the respective raceway faces, the return guide paths extending through the inside of the slider, each of the outward guide paths and the return guide path paired therewith intersecting with each other in an end cap provided in the slider, wherein the slider comprises a pair of guide holes provided for forming the return guide paths, and respectively receiving insertion of guide cylinders in which the rollers roll, the end cap comprises a pair of passage grooves having different depths and intersecting with each other, and a divider frame is provided integrally with one end of each of the guide cylinders for providing a partition between the intersecting passage grooves, and is fitted into a cross portion of the passage grooves intersecting with each other, whereby the outward guide path and the return guide path are defined while still intersecting.