Brush and a rotary electric machine, which is equipped with such a brush

摘要

The invention relates to a brush (34) comprising a proximal end section radially delimited by a concave face (70) capable of cooperating with a collector, and via two opposed lateral faces (68a) and (68b), and means (74a, 74b) for guiding the brush (34) while radially sliding that determine a reference axial median plane of the brush, characterized in that the upstream lateral face (68a) and the downstream lateral face (68b) are not symmetric with regard to the reference plane (PM).