Planetengetriebe

摘要

The invention concerns a planetary gear (1). The planetary gear (1) is generically a Wolfrom gear and permits large ratios. Transmissions of this type are used mainly in handling technology. In order to improve portability and friction, vibration and noise characteristics, step planet wheels (5, 26) with separate toothed regions of the step wheels (4, 6) are used. The modules of the step wheels are graduated. The number of teeth is identical. Each of the teeth engagements with the internal gears (11, 12) can be optimised. The teeth on the step wheels are preferably honed.