Gear unit for an electric powertrain

A gear unit (100, 200, 300, 400) for a powertrain (500, 600, 700, 800) of a motor vehicle (900), having a drive shaft (1) and a driven shaft (2) and having a first planetary gearset (3) and a second planetary gearset (4) and at least a first shifting element (S1) and a second shifting element (S2), wherein the first shifting element (S1) drivingly connects the drive shaft (1) to an input element of the first planetary gearset (3), and the second shifting element (S2) drivingly connects the drive shaft (1) to an input element of the second planetary gearset (4), and wherein an output element of the second planetary gearset (4) is connected to the input element of the first planetary gearset (3) so as to be fixed with respect to rotation relative to it, and wherein an output element of the first planetary gearset (3) is at least indirectly drivingly connected to the driven shaft (2), and further comprising a shared element (5) fixed with respect to relative rotation and which, with an inner toothing (5.1), forms a ring gear of the first planetary gearset (3) and, with an outer toothing (5.2), forms a sun gear of the second planetary gearset (4).