Abstract: A bearing assembly includes a housing, a spherical bearing located within the housing, and two outer races positioned between the spherical bearing and the housing. The outer races are configured in sliding engagement with the spherical bearing to allow the spherical bearing to rotate relative to the housing. The assembly also includes a tightening element configured to engage a first of the two outer races and tighten the outer races against the spherical bearing. The assembly is configured to provide a primary load path from the tightening element to the housing, wherein the primary load path leads from the tightening element to the housing via the outer races whilst bypassing the spherical bearing.

Abstract: A bearing assembly includes a housing, an annular outer race located at least partially within the housing, a bearing located at least partially within the outer race, and a nut configured to be secured to a second axial end of the outer race. The outer race has a central axis and comprises a flange at a first axial end, wherein the flange is configured to prevent movement of the outer race relative to the housing in a first axial direction. The nut is configured to prevent movement of the outer race relative to the housing in a second axial direction, the second axial direction being opposite to the first axial direction.

Abstract: An actuator includes a housing and a piston including an axis. The piston and housing are configured to move relative to each other along the axis. The housing comprises at least one chamber for holding a fluid, the piston being positioned partially within the chamber. A seal configured to isolate the fluid in the chamber is positioned between the piston and the housing. The seal includes a seal body and an energiser. At least one pressure relief conduit is located between the energiser and the chamber. The pressure relief conduit configured to relieve fluid pressure built up in a region between the energiser and the chamber.

Abstract: A joint for an actuator of a rotorcraft includes a housing configured to be coupled to an input lever of the actuator; and a rotary bearing coupled to the housing, the rotary bearing comprising an inner race and an outer race and configured to be coupled to a control rod, wherein the inner race and outer race are rotationally fixed relative to each other until a torque applied to the joint exceeds a threshold torque value, upon which there is a relative rotatability between the inner race and the outer race.

Abstract: A lock nut assembly for an actuator, the lock nut assembly comprising a nut configured to be mounted to a bracket of the actuator for axial movement relative to the bracket, and a lock nut retaining and release mechanism configured to be fixedly mounted to the bracket and axially movable between a first engaged position in which the lock nut retaining and release mechanism engages with the nut to prevent rotation of the nut and a second unlocked position in which the lock nut retaining and release mechanism is not engaged with the nut and the nut can be rotated relative to the bracket.

Abstract: A method of manufacturing an actuator The method comprises assembling the actuator, and curing the actuator using a predetermined heating profile.

Abstract: A bearing assembly includes a housing, a spherical bearing located within the housing, and two outer races positioned between the spherical bearing and the housing. The outer races are configured in sliding engagement with the spherical bearing to allow the spherical bearing to rotate relative to the housing. The assembly also includes a tightening element configured to engage a first of the two outer races and tighten the outer races against the spherical bearing. The assembly is configured to provide a primary load path from the tightening element to the housing, wherein the primary load path leads from the tightening element to the housing via the outer races whilst bypassing the spherical bearing.

Abstract: A joint for an actuator of a rotorcraft includes a housing configured to be coupled to an input lever of the actuator; and a rotary bearing coupled to the housing, the rotary bearing comprising an inner race and an outer race and configured to be coupled to a control rod, wherein the inner race and outer race are rotationally fixed relative to each other until a torque applied to the joint exceeds a threshold torque value, upon which there is a relative rotatability between the inner race and the outer race.