Device for centring and rotationally guiding a turbomachine shaft comprising means for an axial retention of outer ring of a bearing

A device for centring and rotatably guiding a shaft of a turbomachine, comprising:

• a rolling bearing comprising an outer ring,
• a bearing support surrounding the outer ring,
• a shrink ring interposed between the outer ring and the bearing support
• connection means for connecting the outer ring to the bearing support, the connection means comprising an annular fastening clamp mounted to the bearing support and elastically deformable means linking the outer ring to the fastening clamp, comprising at least one annular row of upstream opened U-shaped tabs,
• retaining means for axially retaining the outer ring in case of rupture of said elastically deformable means,
• wherein the retaining means include at least one axial stop clamp extending on an angular sector about the axis of revolution of the outer ring, positioned downstream and in contact with the fastening clamp, said at least one axial stop clamp including at least one fastening hole cooperating with a port of the fastening clamp for fastening together the fastening clamp, the bearing support and said at least one axial stop clamp through at least one fastening member, said at least one axial stop clamp further comprising at least one axial holding stud radially extending to the axis of revolution of the outer ring between two successive tabs of the elastically deformable means.