A guide carriage is guided on a rail track. At the two ends of the rail track, cross-members are mounted. Between the cross-members there extends a drive device. A drive element of the drive device is drivingly connected with the guide carriage. The resultant driving force of the drive device lies outside the longitudinal axis of the rail track. For achieving better acceptance of tilting moments, the guide carriage is guided on the rail track by ball circuits. The rows of supporting balls of the ball circuits bear against rolling tracks, which are formed symmetrically on either side of the longitudinally central plane of the rail track on this track. The force transmission planes of the supporting rows of balls diverge towards the longitudinal plane of symmetry and each make an angle with this plane of approximately 45.degree.. The drive device may, in particular, be mounted laterally of one flange of the U-shaped guide carriage, or above the web of this guide carriage.