A bearing configured to be installed on a shaft or in a housing in an installation direction from a rear axial end of the bearing toward a front axial end of the bearing and an installation aid device mounted to the bearing for blocking the installation of the bearing in a direction opposite the installation direction. The bearing includes a first bearing ring having a radial installation surface, a front axial end surface and a rear axial end surface and a second bearing ring. The installation aid device has at least one radial leg overlying the rear axial end surface and at least partially protruding beyond the radial installation surface and/or at least one axial leg extending at least partially along the radial installation surface.

A thrust bearing arrangement includes a top plate extending about a rotation axis, a thrust plate extending about the rotation axis and axially offset from the top foil plate, and a bump plate. The thrust plate is orthogonal relative to the rotation axis. The bump foil plate extends about the rotation axis, is axially offset from the thrust plate, and has an annular portion and two or more bump plate foil portions. The annular portion of the bump plate is circumferentially interrupted by the bump plate foil portions of the bump plate. Rotating machines and methods of making thrust bearing arrangements for rotating machines are also described.

A breakaway joint for a boom arm assembly includes a first boom segment defining a pivot axis at a first end, a second boom segment pivotally coupled to the first boom segment at the pivot axis, a bracket coupled to the first boom segment, a leaf spring coupled to the bracket between the first boom segment and the second boom segment, and a cam coupled to the second boom segment and positioned adjacent to the leaf spring. The first boom segment and the second boom segment are pivotally aligned in a neutral position. In the neutral position, the leaf spring contacts the cam at a first contact force, and in any position other than the neutral position, the leaf spring contacts the cam at a contact force greater than the first contact force.

A transmission shaft is provided comprising an input side for inputting torque, an output side for outputting torque, and a rod extending in a longitudinal direction between the input side and the output side to transfer torque along the transmission shaft. The rod comprises a first end provided at the input side, a second end provided at the output side and a torsional compliant section extending therebetween providing the transmission shaft with a torsional stiffness. The torsional compliant section comprises a cross-section which extends in the longitudinal direction to define a central core for transmitting torque directly from the first end to the second end and a radially outer section. This section also comprises a plurality ribs which extend radially and longitudinally from an outer periphery of the central core for increasing transverse stiffness of the rod.

A bearing assembly for a gas turbine engine comprises a bearing; a bearing bracket, which holds the bearing and is secured by a predetermined breaking device on a connecting element, which can be connected or is connected to a loadbearing structure of the gas turbine engine; a first toothed component mounted on the bearing bracket; and a second toothed component fixed on the connecting element, wherein, after the destruction of the predetermined breaking device, the first toothed component and the second toothed component can be or are brought into engagement with one another in such a way that one of the toothed components can be made to roll on the other. A gas turbine engine and a method are furthermore provided.

A transmission shaft comprising: an input side for inputting torque; an output side for outputting torque; a rod extending in a longitudinal direction between the input side and the output side to transfer torque along the transmission shaft, the rod comprising a first end provided at the input side, a second end provided at the output side and a torsional compliant section extending therebetween providing the transmission shaft with a torsional stiffness. A casing extends around the torsional compliant section and is arranged to resist deflection of the rod without increasing the torsional stiffness of the transmission shaft.

A bearing assembly for a gas turbine engine comprises a bearing; a bearing bracket, which holds the bearing and is secured by a predetermined breaking device on a connecting element, which can be connected or is connected to a loadbearing structure of the gas turbine engine; a first toothed component mounted on the bearing bracket; and a second toothed component fixed on the connecting element, wherein, after the destruction of the predetermined breaking device, the first toothed component and the second toothed component can be or are brought into engagement with one another in such a way that one of the toothed components can be made to roll on the other. A gas turbine engine and a method are furthermore provided.

The present disclosure relates to a reduced friction torsion component system that makes use of a first frame portion adapted to be coupled to, or integrally formed with, a first object, and forming a first bore, and a second frame portion adapted to be coupled to, or integrally formed with, a second object, and forming a second bore. The two bores are axially aligned and receive at least one elongated hinge component. The elongated hinge component operates to both couple the first and second frame portions together for pivoting movement relative to one another, and also provides a torsional biasing force to enable pivotal deployment from a first position to a second position of one of the first or second frame portions.

A method changes a sliding bearing element of a rotor bearing of a wind turbine. The rotor bearing includes inner and outer ring elements, between which the sliding bearing element is arranged. The inner ring element and the outer ring element are rotatable relative to each other. A rotor hub is fastened to the inner ring element or to the outer ring element. The sliding bearing element includes multiple individual sliding bearing pads, each of which are releasably fastened to the inner ring element or outer ring element of the rotor bearing by at least one fastener. When changing the sliding bearing element, the individual sliding bearing pads are removed one after the other and replaced by new sliding bearing pads, wherein during the changing of the individual sliding bearing pads of the sliding bearing element, the inner ring element and the outer ring element are not disassembled.

A concave portion provided in at least one of the first assembled surface, and other assembled surfaces for fastening the driving force source, in the region corresponding to the outer race of the tapered roller bearing, the other assembled surfaces provided to one of the fixed component and the driving force source.