Abstract: Shelf conveying system which is guided within one upper track system (8) and one ground track system (7), has driving bogies (3), which are supported by wheels (10) on two bearing surfaces of the track system (7) and are equipped with guide rollers (12), which abut laterally on the track system and can be removed at the branches for a straight-ahead path or to introduce branch paths. In addition, each driving bogie has at least one pilot roller (13) which extends into the gap between the bearing surfaces. The pilot roller (13) can be simultaneously designed as a track fastening element (14) which effectively connects with the track by contact with the back taper surfaces of the ground track system (7) (FIG. 3).