Abstract: A rolling bearing device that can be mounted around a shaft of a rotary electric machine of axis X, and axially above a rotor assembly. The rolling bearing device includes a rolling bearing having an inner race and an outer race that are centred on the axis; a target holder which is fixed to the inner race and extends radially with respect to the axis beyond the outer race, and in a base extended by an axial lip, a target which is secured to the target holder and is able to cooperate with a detection means for tracking the rotation of the race about the axis. The base of the target holder includes at least one axially protruding tab designed to axially deform when the base bears against the rotor assembly once the rolling bearing has been mounted on the shaft.

Abstract: A fan of a rotary electric machine. The fan has an axis of rotation and comprises a plurality of blades (101). At least one characteristic of the blades is variable in the direction of a circumference of the fan around the axis of rotation for at least four consecutive blades. The at least one characteristic is selected from the group comprising a spacing angle between a straight line passing radially via a characteristic point of one of the blades and the axis of rotation of the fan and a straight line passing via a corresponding characteristic point of an adjacent blade and the axis of rotation of the fan, a height of the blade, a length of the blade, and an angle of inclination between a straight line passing via two characteristic points of a blade, and a straight line passing via two corresponding characteristic points of an adjacent blade.

Abstract: A fan (100) of a rotary electric machine comprising at least three blades (101) in which at least one property of the blades is, following the circumference of the fan in a given direction, gradual for at least three consecutive blades, the property being chosen from the group including: a spacing angle (102) between a straight line passing through a characteristic point (103) of a blade and an axis of rotation of the fan (104), and a straight line passing through a corresponding characterising point (105) of an adjacent blade and the axis of rotation of the fan; a height of the blade; a length of the blade; and an angle of inclination between a straight line passing through two characteristic points of a blade and a straight line passing through two corresponding characteristic points of an adjacent blade.

Abstract: A fan of a rotary electric machine. The fan has an axis of rotation and comprises a plurality of blades (101). At least one characteristic of the blades is variable in the direction of a circumference of the fan around the axis of rotation for at least four consecutive blades. The at least one characteristic is selected from the group comprising a spacing angle between a straight line passing radially via a characteristic point of one of the blades and the axis of rotation of the fan and a straight line passing via a corresponding characteristic point of an adjacent blade and the axis of rotation of the fan, a height of the blade, a length of the blade, and an angle of inclination between a straight line passing via two characteristic points of a blade, and a straight line passing via two corresponding characteristic points of an adjacent blade.