A composite wear pad for being coupled to a slider block of a convergent nozzle of a gas turbine engine includes a high heat capacity composite having a resin and a plurality of carbon fibers bonded together by the resin. The composite wear pad also includes a first rod coupled to the high heat capacity composite at a first axial end of the composite wear pad such that a first end thickness. The composite wear pad also includes a second rod coupled to the high heat capacity composite at a second axial end of the composite wear pad such that the first axial end and the second axial end of the composite wear pad each have an end thickness that is greater than a middle thickness of the composite wear pad.

An assembly including an inner component; an outer component; a tolerance ring, comprising an annular band and a plurality of projections projecting radially from the annular band, the tolerance ring being disposed between the inner component and the outer component; and a low friction layer provided radially inside or radially outside the annular band so as to enable sliding movement in an axial direction between the inner component and the outer component, wherein at least one of the inner component or outer component is profiled to transmit a radial load between the inner component and the outer component to appreciably prevent collapse of the projections.

The measurement apparatus includes an outer cylinder, a shaft body longitudinally movable on the inner surface side of the outer cylinder, a plurality of bearing balls disposed between an inner surface of the outer cylinder and an outer surface of the shaft body, and a measurement part that measures a relative position between the outer cylinder and the shaft body, and a first density of the bearing balls in a first area having a first length shorter than a total length of the outer cylinder in a longitudinal direction from one end of the outer cylinder is larger than a second density of the bearing balls in a second area having a second length shorter than the total length of the outer cylinder centered on a center position in the longitudinal direction of the outer cylinder.

A rail-based floor conveyor system, with a floor conveyor with concavely grooved wheels and rails having a surface which, when in contact, dips at least partially into the grooved area of the wheels, thereby producing at least two load-bearing lines during the movement of the floor conveyor, wherein a wheel holder is provided for each wheel, with at least one horizontal axis of rotation for each wheel and a vertical axis of rotation to a bearing connected to the floor conveyor, and wherein the wheels can be moved by drives or manually on the rail, bearing including a first bearing part and a second bearing part, wherein one of the bearing parts has a concave surface section, which is at least partially in contact with a convex surface section of the respective other bearing part, and wherein both bearing parts are movable relative to one another while maintaining contact.

A device for guiding and directing a metal sheet in a bending machine to form continuously a conical structure, in particular a frustoconical structure, comprises: resting and contrasting arrangement extending along a closed path, and suitable for restingly receiving a longitudinal edge of the metal sheet and contrasting a movement of the edge in a direction that is transverse to a preset advancement trajectory of the metal sheet; a supporting body for the resting and contrasting arrangement, having at least one oblong lateral portion that is suitable for facing the edge and configured for conforming the resting and contrasting arrangement to the longitudinal profile of the edge so as to obtain an extended zone of contact with said edge and impose resting and contrasting pressure distributed along the edge; the resting and contrasting arrangement is movable around the supporting body along the closed path to accompany the edge of the metal sheet by a distributed contact devoid of relative sliding and rolling, so as to impose on the metal sheet the advancement along the desired advancement trajectory to and through the bending machine. The corresponding method is also provided.

A slide includes a carriage, a guide, and interposed pads allowing the carriage to be moved in translation in a longitudinal direction by relative sliding of the pads on contact surfaces distributed symmetrically on both sides of two planes: a horizontal plane parallel to the longitudinal direction and the transverse direction and a median plane parallel to the longitudinal direction and the vertical direction. The contact surfaces are oriented so as to form with the horizontal plane an angle between 30 and 70 inclusive. This allows a more homogeneous distribution of contact pressures, which tends to center the carriage in its guide, and the wear of the pads is more even between the pads. Such a slide also has an important advantage for the control and monitoring of the wear of the pads.

A guide-roll arrangement for guiding movement of a first member relative a second member of a lift-truck, comprising a roll pin having opposing first and second ends, wherein the first end comprises a recess; and a roll supported on the roll pin; and a sliding element arranged in the recess, said sliding element comprising opposing contact and sliding surfaces, wherein a support piece is arranged in the recess and comprising a contact surface for supporting the sliding element, wherein the contact surface of the sliding element is supported on the contact surface of the support piece and wherein one of the contact surfaces of the support piece and the sliding element is concave and the other is convex.

The ball joint assembly includes a housing with an inner wall that surrounds an axially extending open bore. A ball portion of a ball stud is received in the open bore of the housing, and a shank portion of the ball stud projects out of the open bore. A pair of bearings are disposed in the inner bore of the housing and are interposed between the ball portion and the inner wall. Each bearing has a curved bearing surface which slidably contacts the ball portion for allowing the ball stud and the housing articulate relative before use. Each bearing also has an outer surface that slidably contacts the inner wall. A pair of biasing elements bias the bearings in opposite directions against the ball portion of the ball stud such that the ball stud is movable relative to the housing in the axial direction before use of the assembly.

A slide rail assembly includes a first rail, a second rail, a slide assisting device, an elastic member and a working member. The second rail and the first rail are movable relative to each other. The elastic member is arranged on the second rail. During a process of the second rail being moved relative to the first rail along an opening direction, the working member is configured to contact the elastic member in an initial state in order to drive the slide assisting device to move along the opening direction to a predetermined position. When the slide assisting device is located at the predetermined position, the elastic member releases an elastic force through a predetermined space of the first rail, such that the elastic member is no longer in the initial state with the working member no longer contacting the elastic member.

A carriage for a linear guide system includes a rail element including two running surfaces facing each other and the carriage being movable relative to the rail element in and against a pull-out direction. The carriage includes a base body, a pair of first and second sliders having sliding surfaces facing away from each other, wherein the sliding surface of the first and second slider is frictionally engageable with a respective one of the running surfaces, and wherein the first slider is mounted on the base body for movement relative to the base body in an upward direction perpendicular to the pull-out direction, and a spring member, wherein the spring member is mounted on the base body such that the spring member biases the first slider in the upward direction away from the second slider.