Patent ID: 9033849
Filing Date: 2015-05-19
Classification: F16H

Abstract:
1. A backlash-free planetary gear unit with a sun gear and with a ring gear which mesh with at least one first planet gear of a planetary stage, wherein said planetary stage comprises a first planet carrier on which said first planet gear is rotatably mounted, wherein there is furthermore at least one second planet gear in the planetary stage that also meshes with said ring gear and said sun gear wherein said at least one second planet gear is rotatably supported at a second planet carrier of said planetary stage, wherein said first planet gear and said second planet gear are arranged between said first planet carrier and said second planet carrier, and said first planet carrier and said second planet carrier are in the circumferential direction of said sun gear preloaded relative to each other by at least one preloading element, such that said at least one first planet gear is preloaded relative to said at least one second planet gear in the circumferential direction of said sun gear.