Abstract: Electromotively driven drive unit with a planetary gearing having bevel-gear toothing and including a revolving planet gear having an inclined axis intersecting with the axis of a central gear of the planetary gearing, and a gear box for the planetary gearing having a plurality of journal shafts to which tools and devices drivable with varying rotary speeds are connectible, the improvement therein includes an internally toothed outer ring gear disposed concentrically to the central gear of the planetary gearing, the planet gear being in meshing engagement both with the teeth of the central gear and the teeth of the ring gear, the planet gear with a pin formed thereon being seated in a bearing member rotatably disposed on the axis of the central gear, the planet gear moving together with the bearing member during a whirling movement thereof about the central gear.