In the case of a directional force exciter for a vibrating conveyor and/or a vibrating screen, comprising two shafts (4), which are rotatably mounted in a housing by way of at least two bearings each, wherein the bearings have a predetermined bearing play, wherein an eccentric weight is fastened to each of the shafts and a gear wheel (7) is attached to the respective shaft (4), in each case in such a way as to transfer torque, and the gear wheels (7) have a toothing (8) on each, one meshing with the other in an operative relationship, it is provided that the gear wheels (7) are fixed on the respective shaft (4) eccentrically in relation to the axis thereof. The invention also relates to a vibrating machine (1) with such a directional force exciter.
