PLANETARY GEAR SET, PLANETARY DIFFERENTIAL, AND TRANSMISSION HAVING THE PLANETARY DIFFERENTIAL

摘要

A planetary gear system having at least two planetary steps, each of which is made up of at least one set of planets and one sun, whereby the teeth of the gearwheels in the planetary drive mesh with each other in such a way that, in each of the meshing points, at least one first tooth on a first toothing of first teeth positively engages into a tooth gap of a second toothing of second teeth. First teeth of the first toothing have a tooth flank profile concavely arched, and second teeth of the second toothing have a tooth flank profile convexly arched, so that the tooth flanks in contact with each other are arched in the same directions, at least when in contact.