Electromechanical actuation assembly of an electromechanical brake (B1; B2) - with an electromechanical actuator having a downstream first mechanical drive transmission unit, - with a reversible power storage device having a downstream second mechanical drive transmission unit and - with a coupling device which can be rotated about an axis of rotation, which coupling device couples a mechanical actuation transmission unit on the one hand to a drive output of the first mechanical drive transmission unit and on the other hand to a drive output of the second mechanical drive transmission unit, wherein the mechanical actuation transmission unit is embodied as a first non-linear transmission such that it generates a lifting movement which is non-linearly dependent on the angle of rotation (ω) of the coupling device, to which lifting movement a tensile force ( F tforce) corresponds which counteracts a reaction force ( F reac), and wherein the second mechanical drive transmission unit is embodied as a second non-linear transmission such that it introduces a second drive torque (M eecentr) non-linearly dependent on the angle of rotation (ω) of the coupling device into the coupling device, which applies a portion (F eccentr) of the tensile force, characterised in that the two non-linear transmissions (KTG, EG) are embodied to conform to one another such that the actuation transmission unit for generating a uniform tensile force ( F tforce) over a first predetermined rotation angle range (ω 1 to ω 2) with a first constant portion (F eccentr = F Ca; F eccentr = F C = F P) of the tensile force applied by the second drive torque retains a predetermined lifting value h p counter to the reaction force ( F reac). - with an electromechanical actuator having a downstream first mechanical drive transmission unit, - with a reversible power storage device having a downstream second mechanical drive transmission unit and - with a coupling device which can be rotated about an axis of rotation, which coupling device couples a mechanical actuation transmission unit on the one hand to a drive output of the first mechanical drive transmission unit and on the other hand to a drive output of the second mechanical drive transmission unit, wherein the mechanical actuation transmission unit is embodied as a first non-linear transmission such that it generates a lifting movement which is non-linearly dependent on the angle of rotation (ω) of the coupling device, to which lifting movement a tensile force ( F tforce) corresponds which counteracts a reaction force ( F reac), and wherein the second mechanical drive transmission unit is embodied as a second non-linear transmission such that it introduces a second drive torque (M eecentr) non-linearly dependent on the angle of rotation (ω) of the coupling device into the coupling device, which applies a portion (F eccentr) of the tensile force, characterised in that the two non-linear transmissions (KTG, EG) are embodied to conform to one another such that the actuation transmission unit for generating a uniform tensile force ( F tforce) over a first predetermined rotation angle range (ω 1 to ω 2) with a first constant portion (F eccentr = F Ca; F eccentr = F C = F P) of the tensile force applied by the second drive torque retains a predetermined lifting value h p counter to the reaction force ( F reac).