A spindle drive apparatus, comprising a spindle provided with an external thread, the spindle being connected to a first connection unit for connecting the spindle drive apparatus to a superordinate assembly, i.e. which does not belong to the spindle drive apparatus, a spindle nut, which is threadedly engaged with the external thread of the spindle and which is connected to a second connection unit for connecting the spindle drive apparatus to a superordinate assembly, i.e. which does not belong to the spindle drive apparatus, a drive assembly with a drive unit, which is adapted for driving the spindle or the spindle nut, an output shaft of the drive unit and a drive assembly housing, in which the drive assembly is housed, at least one bearing (34, 64) formed as a ball bearing, which rotatably supports the spindle or the spindle nut relative to the drive assembly housing, and a coupling element, which connects the first connection unit to the spindle or the second connection unit to the spindle nut in such a way that a displacement of the respective two elements from each other is prevented in at least one axial direction of the spindle, wherein for this purpose the coupling element has, on both of its longitudinal ends, edges (40,42) which are deformed radially towards the inside; wherein further an inner bearing ring of the bearing is secured to the spindie by means of a support element, characterized in that the drive assembly housing is free from forces, which are transmitted from one of the superordinate assemblies through the spindle drive apparatus to the other of the superordinate assemblies through traction and compression forces, by the coupling element engaging with an external bearing ring of bearing and connecting the same, clamp-like, to a base, on which the first connection unit is screwed by means of a thread, and by a traction force, which acts between both superordinate assemblies connected to the spindle drive apparatus and thus through both connection units (14, 18) onto the spindle drive apparatus, being transmitted from the first connection unit through the base, the coupling element, the bearing and the support element to the spindle. a spindle provided with an external thread, the spindle being connected to a first connection unit for connecting the spindle drive apparatus to a superordinate assembly, i.e. which does not belong to the spindle drive apparatus, a spindle nut, which is threadedly engaged with the external thread of the spindle and which is connected to a second connection unit for connecting the spindle drive apparatus to a superordinate assembly, i.e. which does not belong to the spindle drive apparatus, a drive assembly with a drive unit, which is adapted for driving the spindle or the spindle nut, an output shaft of the drive unit and a drive assembly housing, in which the drive assembly is housed, at least one bearing (34, 64) formed as a ball bearing, which rotatably supports the spindle or the spindle nut relative to the drive assembly housing, and a coupling element, which connects the first connection unit to the spindle or the second connection unit to the spindle nut in such a way that a displacement of the respective two elements from each other is prevented in at least one axial direction of the spindle, wherein for this purpose the coupling element has, on both of its longitudinal ends, edges (40,42) which are deformed radially towards the inside; wherein further an inner bearing ring of the bearing is secured to the spindie by means of a support element, characterized in that the drive assembly housing is free from forces, which are transmitted from one of the superordinate assemblies through the spindle drive apparatus to the other of the superordinate assemblies through traction and compression forces, by the coupling element engaging with an external bearing ring of bearing and connecting the same, clamp-like, to a base, on which the first connection unit is screwed by means of a thread, and by a traction force, which acts between both superordinate assemblies connected to the spindle drive apparatus and thus through both connection units (14, 18) onto the spindle drive apparatus, being transmitted from the first connection unit through the base, the coupling element, the bearing and the support element to the spindle.