Cage segment and associated rolling bearing

A rolling bearing comprising:

• an inner ring,
• an outer ring,
• at least two rows of rollers disposed between raceways of the rings, and
• at least two segmented cages for holding the rows of rollers, each segmented cage comprising a plurality of cage segments including a central portion extending in the circumferential direction and delimiting a plurality of through pockets for receiving rollers, each of the plurality of through pockets comprising a circumferential through pocket length measured in the circumferential direction, the central portion comprising first and second walls extending in the circumferential direction and provided with internal surfaces opposite one another and forming abutment surfaces for the end faces of the rollers, the cage segment comprising a plurality of beams extending transversely between the first and second walls in order to delimit the pockets, and a first lateral shoulder outwardly extending the first wall of the central portion, a second lateral shoulder outwardly extending the second wall of the central portion by being oriented at right angles to the first lateral shoulder, and at least one outwardly open recess being formed on each of the first and second lateral shoulders, the at least one outwardly open recess comprising a circumferential recess length measured in the circumferential direction, the circumferential recess length being greater than the circumferential through pocket length, wherein
• the second shoulders of the cage segments of one of the cages are axially opposite the second shoulders of the cage segments of the other cage.