A pair of radial flanged bearings (10, 10') with rolling bodies, each of the bearings (10, 10') comprising: - a radially outer ring 20), radially confined by an external surface; - a radially inner ring, co-axially and internally assembled, with respect to the outer ring; - a row of rolling bodies, which is interposed between the outer ring and the inner ring, to allow the relative rotation of the two rings (20, 30); and - a flange steadily fixed to the outer rings; wherein - the correspondent outer rings are provided with an assembly groove, which is obtained along said external surface, - the flange is not in one piece with the outer rings, but is detachable from the outer rings in correspondence of the assembly grooves, - the flange comprises engagement means (51, 51'), which are partially inserted in the assembly grooves, to engage the flange to the outer rings, and locking means, axially put close to said engagement means (51, 51'), for locking said engagement means (51, 51') inside the assembly grooves, - said locking means comprise an annular plate provided with a pair of central through holes and assembled on the external surface of the outer rings; the annular plate being stacked on the semi-annular plates (51, 51') which are disposed in the annular groove, and steadily fixed to both the semi-annular plates (51, 51'), the pair of bearings (10, 10') being characterized in that the assembly groove, on the external surface of the outer ring, defines an annular assembly edge, on which the annular plate is assembled; the annular assembly edges and the pair of central through holes of the annular plate being provided with correspondent flattenings (24a, 57a), which are anti-rotational and each other engaged to avoid the rotation of the annular plate, with respect to the external rings. - a radially outer ring 20), radially confined by an external surface; - a radially inner ring, co-axially and internally assembled, with respect to the outer ring; - a row of rolling bodies, which is interposed between the outer ring and the inner ring, to allow the relative rotation of the two rings (20, 30); and - a flange steadily fixed to the outer rings; wherein - the correspondent outer rings are provided with an assembly groove, which is obtained along said external surface, - the flange is not in one piece with the outer rings, but is detachable from the outer rings in correspondence of the assembly grooves, - the flange comprises engagement means (51, 51'), which are partially inserted in the assembly grooves, to engage the flange to the outer rings, and locking means, axially put close to said engagement means (51, 51'), for locking said engagement means (51, 51') inside the assembly grooves, - said locking means comprise an annular plate provided with a pair of central through holes and assembled on the external surface of the outer rings; the annular plate being stacked on the semi-annular plates (51, 51') which are disposed in the annular groove, and steadily fixed to both the semi-annular plates (51, 51'), the pair of bearings (10, 10') being characterized in that the assembly groove, on the external surface of the outer ring, defines an annular assembly edge, on which the annular plate is assembled; the annular assembly edges and the pair of central through holes of the annular plate being provided with correspondent flattenings (24a, 57a), which are anti-rotational and each other engaged to avoid the rotation of the annular plate, with respect to the external rings.