Abstract: The arrangement of bearing supports (20, 50; 22, 52, 520) for a rotating shaft (10) mounted on bearings (20, 50) connected to an engine stator structure (16) by bearing supports 22, 52, 520) of which at least one is made up of N>1 elements (24, 240; 40, 400) effectively acting in parallel to simultaneously connect the said bearing (20, 50) to the said structure (16), of which N?1 of the said. N elements form this connection by means of fusible links (80, 800, 810), is made up of a first bearing (20) supported by a first bearing support (22) and a second bearing (50) supported by a second bearing support (52, 520), that of the two bearing supports (22, 52, 520) which makes up the said N>1 elements being the second bearing support (52, 520). Application to the rotating shaft (10) of an aircraft engine.

Abstract: The invention relates to a rotary shaft arrangement carrying equipment at one end and extending rearwards from the equipment, the shaft (1) being supported by a first bearing (2) behind the equipment, and by a second bearing (3) behind the first bearing (2), the first bearing (2) being carried by a casing (4) surrounding the shaft (1) and extending rearwards from the first bearing (2) to a stator structure (5) to which the casing (4) is fastened by screws (6) that extend parallel to the shaft (1) and that are fusible in traction, the arrangement being characterized by the fact that the second bearing (3) is disposed with radial clearance (J) in a bore (7) of an annular support (8) secured to the stator structure (5), and is fastened to said annular support (8) by screws (9) that are parallel to the shaft (1) and that are fusible in shear, whereby the second bearing (3) can bear against said support (8) in the event of said screws (9) rupturing.

Abstract: The tension decoupler devices comprises: