PURPOSE: To provide a direct-acting rolling guide unit which is constituted to reliably fix a holding means to hold a cylinder roller to a slide through one action and increase a rated load.

CONSTITUTION: A holding plate 5 is arranged between cylinder rollers arranged on the upper and lower track surfaces of a casing 3 and a holding part 31 for a fixing band 6 is locked in the engaging groove of the holding plate 5 and an engaging groove formed in an end cap 4. The lock claw of the tip of the bent part 32 of the fixing band 6 is engaged with a lock hole formed in the end cap 4. This constitution incorporates a holding means to hold a cylinder roller in a slider 2 and the cylinder roller is holdable in a track passage consisting of a track rail and the casing 3.