Rolling bearing with attached raceways, in particular for a steering column

A rolling bearing for a steering column, comprising:

• a first ring,
• a second ring mounted coaxially with the first ring and comprising a casing having an axial portion, a first radial portion extending from a first axial end of the axial portion and a second radial portion extending from a second axial end of the axial portion,
• a row of balls between the first ring and the second ring,
• a cup arranged in the casing, a surface of the cup forming a first raceway for the row of balls, and
• prestressing means mounted axially between the cup and the second radial portion of the casing for exerting an axial force on the cup,
• wherein the casing includes an extension extending obliquely from the first radial portion toward the axial portion, a surface of the extension forming a second raceway for the row of balls, and
• wherein the second radial portion of the casing extends obliquely towards an inside of the casing.