Bearing for guiding and axial positioning a rotating shaft

The invention concerns a bearing (10) for guiding rotation and axial positioning of a rotating shaft (18), in particular of a drive shaft of a vehicle windshield wiper mechanism, of the type comprising a bearing body (12) which includes a hole (14) in which the rotating shaft (18) is guided in rotation about its axis (A), and whose axial position relative to the bearing body (12) is determined by a retaining ring (40) which cooperates with a radial groove (42) of the rotating shaft (18) and which rests axially on an annular end face (44) of the upper end of the bearing body (12), with interposition of a washer (46), characterized in that the washer (46) is prevented from rotating relative to the bearing body (12).