A pivot (14) with a longitudinal axis (Y) for a bearing of a mechanical reduction gear, comprising a first annular part (14a) including an axial passage (17) and a second annular part (14b) mounted around the first annular part (14a), the first annular part (14a) delimiting with the second annular part (14b) a lubrication circuit at least one oil inlet (20) of which opens out inwards of the first annular part (14a) into the axial passage (17) and at least one oil outlet (28) of which opens radially outwards of the second annular part (14b).

A pivot (14) with a longitudinal axis (Y) for a bearing of a mechanical reduction gear, comprising a first annular part (14a) including an axial passage (17) and a second annular part (14b) mounted around the first annular part (14a), the first annular part (14a) delimiting with the second annular part (14b) a lubrication circuit at least one oil inlet (20) of which opens out inwards of the first annular part (14a) into the axial passage (17) and at least one oil outlet (28) of which opens radially outwards of the second annular part (14b).

A lift assembly including a lifting structure, a lifting arm, a yoke structure fixed to the lifting structure, a pin pivotally coupling the lifting arm with the yoke structure, and an integrated anti-rotational assembly associated with both the yoke structure and the pin. The lifting structure can actuate relative to the ground between a lowered position and a raised position. The lifting arm is configured to actuate with the lifting structure between the lowered position and the raised position. The integrated anti-rotational assembly can inhibit rotation of the pin relative to the yoke structure about the longitudinal axis of the pin.

A connection rod coupling assembly includes a settable shape mounting second component having a lateral, primary axis and a bearing assembly including a bearing assembly body. The bearing assembly body includes a substantially cylindrical outer surface and a center axis. The bearing assembly body is coupled to the settable shape mounting second component in a non-aligned configuration. That is, the bearing assembly body center axis is offset from the settable shape mounting second component primary axis. Thus, the position of the bearing assembly body center axis is adjustable by repositioning the settable shape mounting second component relative to a settable shape mounting first component on a swing lever. The adjustment of the bearing assembly body, in turn, adjusts the range of the ram assembly and the ram assembly body.

A pivoting connection device connecting at least two components and comprising an end fitting having first and second branches, an arm positioned between the first and second branches of the end fitting, a cylindrical axle connecting the end fitting and the arm and having, at one of the ends thereof, a first portion configured to expand radially, a cylindrical rod configured to be screwed into a tapped portion of the cylindrical axle, an insert fitted on the cylindrical rod and movable between a first position, in which the first portion is not expanded, and a second position, in which the first portion is expanded radially, and a nut configured to be screwed on the cylindrical rod to urge the insert into the second position.

A pivoting connection device connecting at least two components and comprising an end fitting having first and second branches, an arm positioned between the first and second branches of the end fitting, a cylindrical axle connecting the end fitting and the arm and having, at one of the ends thereof, a first portion configured to expand radially, a cylindrical rod configured to be screwed into a tapped portion of the cylindrical axle, an insert fitted on the cylindrical rod and movable between a first position, in which the first portion is not expanded, and a second position, in which the first portion is expanded radially, and a nut configured to be screwed on the cylindrical rod to urge the insert into the second position.

A cover unit for selectively covering an opening in a structure, including: at least a first cover element having a first axial end coupled to a first driving mechanism, and a second axial end coupled to a second driving mechanism; the first driving mechanism and the second driving mechanism configured to move the first cover element between a closed position and an opened position; each including: an arm configured to be rotatively coupled to the structure, at least one drive unit configured to drive a movement of the arm, and a joint configured to couple the arm to the axial end of the first cover element, the joint configured to allow a two-axis rotation and one linear axis movement, wherein the joint is configured to allow the first axial end and the second axial end of the first cover element to be moved differently during an opening movement and/or a closing movement.

The present invention relates to a mechanical system (1), comprising a bearing (4) and a shaft (10) coupled to the bearing (4), especially for an internal combustion engine, being subjected to average contact pressures of less than 200 MPa. The shaft (10) has at least one area (12) provided with an anti-seizing surface coating (20), having a surface hardness at least twice that of the bearing (4), and a microtexturation (30) comprised of a set of individual microcavities (31), distributed in said area (12). The invention also relates to a method for manufacturing such a mechanical system (1).

In an embodiment, a bearing including a generally cylindrical sidewall having a thickness, t.sub.SW; a circumferentially extending feature projecting radially outward from the generally cylindrical sidewall, wherein the circumferentially extending feature has an axial height of at least about 2.0 t.sub.SW; and a flange disposed at an axial end of the generally cylindrical sidewall and spaced apart from the circumferentially extending feature. In another embodiment, an assembly including a first component comprising an aperture; a second component coaxial with respect to the first component; and a bearing disposed axially between the first and second components and at least partially within the aperture of the first component, wherein the first and second components are spaced apart from one another by a distance, D, and wherein the bearing is visible from a side elevation view along the entire distance, D.

An aircraft propulsion assembly has a hinge for articulating a first and a second of its panels. The hinge includes a yoke rigidly connected to the first panel and a counter-yoke rigidly connected to the second panel, which is received between two lugs of the yoke.The yoke and the counter-yoke are passed through by a hinge pin that is movable between an extended position between the lugs of the yoke and a retracted position outside the yoke. The hinge further includes bayonet mounting means interposed between the pin and the yoke.