The planetary gear unit which is not the backlash which possesses the split planetary gear where it can add the load beforehand with the spring bar which is laid out parallel vis-a-vis the planetary revolving shaft

摘要

The invention relates to a backlash-free planetary gear unit comprising a sun gear, an internal gear and at least one planet gear which is in mesh with said sun gear and said internal gear and which is arranged ON a planet carrier such that it is rotatable about a planetary axis of rotation, wherein the toothed planet gear has a plane of division which is oriented perpendicular to the planetary axis of rotation and by means of which the planet gear is divided into a first planet subgear and a second planet subgear and wherein the first planet subgear is preloaded relative to the second planet subgear by a spring bar arranged in these two planet subgears substantially parallel to the planetary axis of rotation and wherein a plurality of spring bars is arranged around the planetary axis of rotation.