A rolling bearing providing an outer ring, an inner ring, and a plurality of rolling bodies disposed between the inner ring and the outer ring, and a sealing device held by the outer ring and consisting of a first and second annular shield and an elastomeric sealing element held by one of the shields. The second shield extends axially and radially to protrude on the outside of the outer ring and cooperates with a radially outer lateral surface of the outer ring, to delimit a radial annular gap therewith. An annular tooth is formed on the radially outer lateral surface of the outer ring in front of the radial gap to shield the radial gap in axial direction. An annular groove formed in a position immediately adjacent to the annular tooth and on the side opposite to the second shield.