A pull-out mechanism for a drawer (2) in a drawer cavity (3) in a piece of furniture (4). The pull-out mechanism includes an upper rail (8) with a substantially U-shaped cross-section, said rail being affixed to the drawer (2) in its longitudinal direction, and possibly a lower rail (8) with a substantially U-shaped cross section, said lower rail, possibly indirectly, being affixed to a wall (5) in the drawer cavity (3), and an intermediate rail (10) which in its longitudinal direction is movable between the upper rail and the lower rail. At least one bearing holder (12, 22) with roller (14, 15, 24, 25) and balls (16, 29) is inserted between the intermediate rail and the upper rail and the lower rail respectively. Exactly one bearing ball (16, 29) is mounted in the part of the individual bearing holder (12, 22) placed on one side of the intermediate rail (10); two rollers or wheels (14, 15, 24, 25) are mounted in the part of the individual bearing holder (12, 22) placed on the other side of the intermediate rail (10). The axes of rotation of said rollers or wheels are placed in each their plane of two planes standing perpendicular to each other. A substantially horizontal auxiliary roller (18, 28) extending to both sides of the intermediate rail (10) is mounted in the individual bearing holder (12, 22) between the intermediate rail (10) and the upper rail (6) and the lower rail (8) respectively. Hereby a considerably constructive simplification is achieved and the pull-out mechanism can bear both horizontal and vertical loads in a reliable way. Furthermore it is possible to pull out the drawer to a position just outside the actual piece of furniture.