A system for identifying a component of a machine, in particular a bearing or hub bearing unit of a vehicle, comprising the component, an electronic tag intended to identify the component, and an assembly system for assembling the electronic tag; the assembly system including, in combination: i- a clip made in a single piece by moulding of a synthetic plastic material and comprising a head and a shank; the head of the clip having the electronic tag incorporated therein, preferably on the side of a first surface of the clip head, which first surface is facing the side opposite to the shank; and ii- a seat for snappingly receiving the shank of the clip integrally obtained in the component; characterized in that: iii- the receiving seat being a through seat; iv- the shank of the clip being anchor-shaped and comprising a stem which overhangingly protrudes from the head, on the side of a second surface of the head opposite to the first surface, and at least a couple of wings which laterally overhangingly protrude from a free end of the stem opposite to the head, the wings being arranged obliquely to the stem, protruding from the free end of the stem rearwards, towards the head of the clip, and being elastically deformable so that they are adapted to bend at the free end of the stem and towards the stem; v- the receiving seat comprising a first through cavity, having transversal dimensions, measured transversally to the stem of the clip shank, smaller than the overhanging extension of respective free ends of the wings which overhangingly transversally protrude from the stem; and a second cavity, immediately adjacent to the first, capable of snappingly receiving the wings of the clip shank having transversal dimensions, measured transversally to the stem of the clip shank, larger than the overhanging extension of the respective free ends of the wings which overhangingly transversally protrude from the stem; vi- the free ends of the wings being grapnel-shaped, being provided with respective indentations towards the head of the clip, which define on each wing a first shoulder surface facing the head of the clip and arranged, with the wings in undeformed conditions, substantially perpendicular to the stem, and a second shoulder surface, substantially perpendicular to the first shoulder surface and facing the side opposite to the stem; vii- between the first cavity and the second cavity of the receiving seat a substantially right-angle edge being defined for the coupling with the indentation of each wing, so that the first shoulder surface of the wings cooperates against an annular shoulder surface of the receiving seat arranged between the first cavity and the second cavity (18,19) and the second shoulder surface of the wings cooperates against a lateral wall of the first cavity. i- a clip made in a single piece by moulding of a synthetic plastic material and comprising a head and a shank; the head of the clip having the electronic tag incorporated therein, preferably on the side of a first surface of the clip head, which first surface is facing the side opposite to the shank; and ii- a seat for snappingly receiving the shank of the clip integrally obtained in the component; characterized in that: iii- the receiving seat being a through seat; iv- the shank of the clip being anchor-shaped and comprising a stem which overhangingly protrudes from the head, on the side of a second surface of the head opposite to the first surface, and at least a couple of wings which laterally overhangingly protrude from a free end of the stem opposite to the head, the wings being arranged obliquely to the stem, protruding from the free end of the stem rearwards, towards the head of the clip, and being elastically deformable so that they are adapted to bend at the free end of the stem and towards the stem; v- the receiving seat comprising a first through cavity, having transversal dimensions, measured transversally to the stem of the clip shank, smaller than the overhanging extension of respective free ends of the wings which overhangingly transversally protrude from the stem; and a second cavity, immediately adjacent to the first, capable of snappingly receiving the wings of the clip shank having transversal dimensions, measured transversally to the stem of the clip shank, larger than the overhanging extension of the respective free ends of the wings which overhangingly transversally protrude from the stem; vi- the free ends of the wings being grapnel-shaped, being provided with respective indentations towards the head of the clip, which define on each wing a first shoulder surface facing the head of the clip and arranged, with the wings in undeformed conditions, substantially perpendicular to the stem, and a second shoulder surface, substantially perpendicular to the first shoulder surface and facing the side opposite to the stem; vii- between the first cavity and the second cavity of the receiving seat a substantially right-angle edge being defined for the coupling with the indentation of each wing, so that the first shoulder surface of the wings cooperates against an annular shoulder surface of the receiving seat arranged between the first cavity and the second cavity (18,19) and the second shoulder surface of the wings cooperates against a lateral wall of the first cavity.