An oscillatory system for a motorized drive unit for the generation of a rotary oscillatory movement is provided. The system includes a first oscillatory component and a second oscillatory component, the components capable of oscillating relative to one another around an axis of oscillation; and at least two elongate spring elements, each spring element having a first fastening point and a second fastening point spaced apart from one another. The spring elements are elastic in the direction of the rotary oscillatory movement. For each spring element the first fastening point is connected to the first oscillatory component and the second fastening point is connected to the second oscillatory component such that the spring elements intersect at the axis of oscillation, the axis of oscillation having an angle of intersection different from 0 degrees.