Bearing assembly equipped with a rolling bearing and scissors gear, in particular for a balancing shaft

A bearing assembly comprising:

• a rotating shaft;
• a rolling bearing having an inner ring mounted on the rotating shaft, an outer massive ring defining two front surfaces, an inner bore and an outer cylindrical surface, and at least one row of rolling elements radially housed between the inner ring and outer ring;
• a scissors gear having a main gear press fitted onto the outer cylindrical surface of outer massive ring, an auxiliary gear mounted with loose fit onto the outer cylindrical surface, and a scissors spring arranged between the main gear and auxiliary gear;
• and
• an axial retaining arrangement between the outer ring of rolling bearing and scissors gear, the auxiliary gear being axially blocked between the axial retaining arrangement and main gear,
• wherein the axial retaining arrangement consists in the combination of:
• an annular radial groove disposed at one axial end of the inner bore of outer massive ring and axially opposite to the main gear, and circumferentially radially open to the bore, and
• an annular shield that successively comprises:
• a first radial outer portion,
• a first axial portion extending axially outwardly from the first radial portion,
• a second radial portion extending radially inwardly from the first axial portion, and
• a second axial portion extending axially inwardly from the second radial portion and extended by a plurality of bent tongues, the
• wherein the tongues are mounted in the annular groove,
• wherein the second radial portion bearing resides against a front surface of outer massive ring,
• wherein the first axial portion bearing resides against a portion of the outer cylindrical surface of outer massive ring,
• wherein the first radial portion radially protrudes from the outer cylindrical surface of outer massive ring so as to form an axial stop for the auxiliary gear.