Patent ID: 9140331
Filing Date: 2015-09-22
Classification: F16H

Abstract:
1. A Wolfrom-type, webless planetary gear set, comprising: two coaxial housing parts which can be rotated relative to each other each with inner toothing on a respective inner side, a toothed sun gear and a plurality of toothed planetary gears which roll between the sun gear and the inner sets of teeth and are flying in a floating manner, without a planetary gear carrier but instead their front sides slide along between two level, parallel, ring-shaped gliding surfaces which are located on inner sides of front faces of the two housing parts comprising an bearing arrangement between the two housing parts having bearing bodies that circulate along paths which: a) are located radially outside at least one of the inner sets of teeth as well as b) at an axial height between the two gliding surfaces of the housing for guidance of the planetary gears, wherein the sun gear c) exhibits an axial extension, which is shorter than a distance between both casing endplates, and d) is supported by a bearing system at another bearing body, which is located at a face opposite to a connection for a drive motor and which is connected to an opposite casing endplate.