Motor gear assembly, in particular for an adjustment device in motor vehicles for the adjustment of two, relative to each other adjustable motor vehicle parts, including - an electromotor and - a helical planetary gear box including a helical gear shaft, with a helical gear wheel toothing, which is rotatably mounted around the axis of a helical gear shaft, a planetary gear carrier with at least three helical planetary gear wheels, each of which is rotatably mounted in the planetary gear carrier around an axis of a planetary gear wheel and each of which comprises a planetary gear wheel toothing, wherein the axes of the helical planetary gear wheels extend askew to the axis of the helical gear shaft, an inner helical gear wheel, with an inner toothing, which engages with the planetary gear wheel toothing, and a bearing arrangement for bearing the helical gear shaft which comprises a first bearing segment and a second bearing segment, wherein the first bearing segment is arranged outside of the planetary gear carrier and is formed of an axial and radial bearing, and wherein the second bearing segment is formed of the helical planetary gear wheels, wherein the planetary gear wheel toothing engages with the helical gear wheel toothing in the second bearing segment, wherein - the electromotor comprises an engine shaft which is non-rotatably connected to the helical gear shaft, and - the axial and radial bearing is arranged in a bearing seat which is arranged between the electromotor and the inner helical gear wheel, characterized in that the bearing seat is non-rotatably connected to the electromotor and to the inner helical gear wheel. - an electromotor and - a helical planetary gear box including a helical gear shaft, with a helical gear wheel toothing, which is rotatably mounted around the axis of a helical gear shaft, a planetary gear carrier with at least three helical planetary gear wheels, each of which is rotatably mounted in the planetary gear carrier around an axis of a planetary gear wheel and each of which comprises a planetary gear wheel toothing, wherein the axes of the helical planetary gear wheels extend askew to the axis of the helical gear shaft, an inner helical gear wheel, with an inner toothing, which engages with the planetary gear wheel toothing, and a bearing arrangement for bearing the helical gear shaft which comprises a first bearing segment and a second bearing segment, wherein the first bearing segment is arranged outside of the planetary gear carrier and is formed of an axial and radial bearing, and wherein the second bearing segment is formed of the helical planetary gear wheels, wherein the planetary gear wheel toothing engages with the helical gear wheel toothing in the second bearing segment, wherein a helical gear shaft, with a helical gear wheel toothing, which is rotatably mounted around the axis of a helical gear shaft, a planetary gear carrier with at least three helical planetary gear wheels, each of which is rotatably mounted in the planetary gear carrier around an axis of a planetary gear wheel and each of which comprises a planetary gear wheel toothing, wherein the axes of the helical planetary gear wheels extend askew to the axis of the helical gear shaft, an inner helical gear wheel, with an inner toothing, which engages with the planetary gear wheel toothing, and a bearing arrangement for bearing the helical gear shaft which comprises a first bearing segment and a second bearing segment, wherein the first bearing segment is arranged outside of the planetary gear carrier and is formed of an axial and radial bearing, and wherein the second bearing segment is formed of the helical planetary gear wheels, wherein the planetary gear wheel toothing engages with the helical gear wheel toothing in the second bearing segment, wherein - the electromotor comprises an engine shaft which is non-rotatably connected to the helical gear shaft, and - the axial and radial bearing is arranged in a bearing seat which is arranged between the electromotor and the inner helical gear wheel, characterized in that the bearing seat is non-rotatably connected to the electromotor and to the inner helical gear wheel.