F16C33/04

TOOLING AND METHODS FOR CLOCKING DUAL ECCENTRIC BUSHINGS OF A CLEVIS
20220333643 · 2022-10-20 ·

Tooling for clocking dual eccentric bushings of a clevis so that the clevis and a lug can be pinned together, comprises a pin and a sleeve. The pin comprises a pin cylindrical portion, a plate-engagement portion, and a stop surface. The sleeve comprises a sleeve cylindrical outer surface and a sleeve interior channel that has an interior-channel central axis, which is parallel to and offset from a sleeve-cylindrical-outer-surface central axis. The pin cylindrical portion is configured to be received by the sleeve interior channel with a slip fit. The tooling further comprises a squaring plate that comprises a squaring-plate abutment surface, configured to contact the stop surface, and a squaring-plate opening configured to receive the plate-engagement portion of the pin with a slip fit.

Variable guide vane assembly and bushing therefor

A gas turbine engine, has: an annular gaspath extending around a central axis, the annular gaspath defined between a first casing and a second casing, the first casing defining pockets; and a variable guide vane assembly having: variable guide vanes circumferentially distributed around the central axis, the variable guide vanes having airfoils extending into the annular gaspath and extending between first and second pivot members at respective first and second ends of the airfoils, the variable guide vanes rotatable about respective spanwise axes, bushings received within the pockets of the first casing, the first pivot members of the variable guide vanes rollingly engaged to the bushings, and resilient members disposed radially between surfaces of the first casing and the bushings relative to the spanwise axes, the resilient members in abutment against both of the surfaces of the first casing and the bushings.

Variable guide vane assembly and bushing therefor

A gas turbine engine, has: an annular gaspath extending around a central axis, the annular gaspath defined between a first casing and a second casing, the first casing defining pockets; and a variable guide vane assembly having: variable guide vanes circumferentially distributed around the central axis, the variable guide vanes having airfoils extending into the annular gaspath and extending between first and second pivot members at respective first and second ends of the airfoils, the variable guide vanes rotatable about respective spanwise axes, bushings received within the pockets of the first casing, the first pivot members of the variable guide vanes rollingly engaged to the bushings, and resilient members disposed radially between surfaces of the first casing and the bushings relative to the spanwise axes, the resilient members in abutment against both of the surfaces of the first casing and the bushings.

Crankshaft thrust bearing
11649851 · 2023-05-16 · ·

Improved engine crankshaft thrust bearing includes an arrangement in which the thrust bearing can be employed with a first type of crankshaft for a replacement engine block and also with a different, second type of crankshaft that can also be employed in the replacement engine block. The second type of crankshaft was previously used in the engine block being replaced.

Bearing bush

A bearing bush for supporting a motor vehicle part includes an inner tube made of a metal, a sliding sleeve made of a first plastic material and mounted rotatably on the inner tube, and an elastomer bearing which surrounds the sliding sleeve and has at least a first elastomer body and an outer sleeve. A sliding layer made of a second plastic material is applied to an outer circumferential surface of the inner tube, the first plastic material and the second plastic material forming a tribological pairing either of two different polymers from the groups of polyamides, polyoxymethylenes, polyketones, fluoropolymers, polyethylene terephthalates or polybutylene terephthalates, or the tribological pairing being formed from polyketone against polyketone, wherein the polymers of the tribological pairings each are present in a continuous thermoplastic polymer phase.

Component and method for manufacturing a component
11639737 · 2023-05-02 · ·

A bearing component, such as a bearing roller or a bearing ring, has an exterior surface and includes at least one interior region made of a recycled material which region is spaced from and does not form any part of the exterior surface. The recycled material and the unrecycled material may each include silicon nitride and/or sialon and/or silicon carbide and/or a ceramic material. Also a method of forming the component.

Sliding bearing having sliding segments
11655852 · 2023-05-23 · ·

The invention relates to a sliding bearing having a first bearing component and a second bearing component, which are arranged such that they can rotate relative to each other in a rotation direction (RR) about a rotation axis (RA), wherein at least two sliding segments (1) are arranged between the first bearing component and the second bearing component, wherein the at least two sliding segments (1) each have a support structure (2) for fixing the sliding segment (1) to the first or second bearing component, and a sliding surface (3) for bringing the sliding segment (1) into sliding contact with the second or first bearing component, wherein the sliding surface (3) has, in the rotation direction (RR), a front leading edge (4) and a rear trailing edge (5), wherein the sliding surface (3) has an oil distribution groove (6), which is arranged directly adjacent to the front leading edge (4), and wherein the sliding segment (1) has a passage opening (7) for supplying the oil distribution groove (6) with oil, which preferably extends from a radial outer surface (21) of the support structure (2) to the oil distribution groove (6) or to the sliding surface (3).

SLIDING GUIDE DEVICE FOR MACHINE TOOL
20170370410 · 2017-12-28 ·

Provided is a sliding guide device for a machine tool, which is capable of supplying an appropriate amount of lubricating oil onto a sliding surface in a stable manner for a long period of time. A movable body is provided with a porous-body accommodation space that is open toward a guide face of a base. The porous-body accommodation space is in communication with a lubricating-oil supply passage that is in communication with an external lubricating oil supply unit. In the porous-body accommodation space, a porous body is disposed in a manner to provide a gap G between the porous body and the guide face of the base.

Apparatus and Method for Assembling a Split Sleeve onto a Shaft
20230204070 · 2023-06-29 · ·

An apparatus and method for assembling a split sleeve onto a shaft. The split sleeve apparatus provides a first and second arcuate portion with each having a partial cylindrical configuration. The first and second arcuate portions have at least one finger extending circumferentially outward from their opposing ends. The at least one finger from each of the first and second arcuate portions complementarily engage one another to form a continuous cylinder. At least one aperture extends longitudinally through the at least one finger of the first and second arcuate portions. A dowel rod extends through the at least one aperture for connecting the first and second arcuate portions to form the cylinder. The first and second arcuate portions are fabricated from a material having heat expansion characteristics that allow the material to expand when heated during assembly and to contract when cooled creating an interference fit with the shaft.

Hard composite chromium plating film and sliding member coated with such film
09850587 · 2017-12-26 · ·

To provide a trivalent chromium plating film, in which the generation of cracks penetrating from the film surface to a substrate interface is suppressed, and a sliding member coated with the trivalent chromium plating film, plating is conducted with a chromium plating bath containing trivalent chromium as a chromium source, with a second phase dispersed in a planar and/or fibrous form, such that the second phase in a planar and/or fibrous form is dispersed in the hard chromium plating film to prevent or deflect the propagation of cracks, and to suppress the increase of the crack width, thereby suppressing the propagation of cracks in the hard chromium plating film.