application_number US 201314043906 A description the present invention according to its first inventive aspect is a clutch suitable for powered mirrors whose central element is a shaft 1 this shaft 1 is the reference element that establishes the relative position of other elements of the clutch such as the first body 4 and the second body 2 its longitudinal axis named as axis x is also the reference used to define the particular configurations and orientation of the clutch parts as can be seen in the embodiment shown in fig1 one of the distal ends of the shaft 1 concretely the one located on the left hand side of this figure is an end 1 3 of the shaft 1 adapted to be expanded in the example of fig1 this end has an inner conical cavity 1 3 1 which can be used for said expansion for example by means of the introduction of an ultrasound device which induces a welding process or of a welding tip fig2 on the contrary shows this end 1 3 of the shaft 1 once the expansion has taken place and therefore the axial movement along the axis x is not possible the shaft 1 does also comprise in.