PLANETARY GEARING TRANSMISSION ASSEMBLY, IN PARTICULAR FOR AN ELECTROMECHANICAL SERVICE BRAKE OR AN ELECTROMECHANICAL PARKING BRAKE FOR A MOTOR VEHICLE

The present invention relates to a planetary gear assembly, in particular for an electromechanical service brake (53) or an electromechanical parking brake (81) for a motor vehicle (64), comprising acentral sun gear (12), a number of planetary gears (14) which rotatably on a Planet carrier (16) is mounted, and a planetary gears (14) enclosing ring gear (18), wherein the planet gears (14) are supported by the planet carrier (16), that they both the sun gear (12) and the ring gear ( 18), wherein either the sun gear (12) or the planet carrier (16) or the ring gear (18) by means of a holding unit(24) is rotatably held and between the holding unit (24) and the rotatably held element or between the holding unit (24) and an intermediate member (20) non-rotatably connected to the held member; aforce measuring means (30) for measuring the between the held member and the holding member beauty (24) acting force is arranged. In addition, the invention relates to an electromechanical service brake (53) with such a planeta