Abstract: A floor cleaning machine is provided, comprising a suction unit device, a suction bar which is operatively connectable, or operatively connected, to the suction unit device for fluid communication therewith, a holder which releasably holds the suction bar, a fixing device for releasably fixing the suction bar at the holder, and an overload protection device which is associated with the suction bar, wherein the overload protection device comprises at least one rotational bearing by way of which the suction bar is rotatable at the holder relative to the holder when an overload situation occurs.