A pitch bearing assembly for a rotor blade and a hub assembly of a rotary wing aircraft includes a single inner race. An inboard outer race surrounds an inboard portion of the inner race and includes a first inboard blade connector and a second inboard blade connector that are configured to connect to the rotor blade. An inboard bearing is disposed between the inboard portion of the single inner race and the inboard outer race and includes an elastomer. An outboard outer race surrounds an outboard portion of the single inner race and includes a first outboard blade connector and a second outboard blade connector that are configured to connect to the rotor blade. An outboard bearing is disposed between the outboard portion of the inner race and the outboard outer race and includes an elastomer.

A bearing including a substrate layer including an aluminum alloy including a thickness, T.sub.S, where T.sub.S≤0.6 mm; an adhesive layer; and a low friction material layer overlying the adhesive layer, where the bearing includes an elongation at break, A.sub.50, of ≥23%.

A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5≤S≤4.5.

Embodiments of the invention are directed to bearing assemblies configured to effectively provide heat dissipation for bearing elements, bearing apparatuses including such bearing assemblies, and methods of operating such bearing assemblies and apparatuses. In an embodiment, a bearing assembly includes a plurality of superhard bearing elements distributed about an axis. Each superhard bearing element of the plurality of superhard bearing elements has a superhard table including a superhard surface. The bearing assembly includes a support ring structure coupled to the plurality of superhard bearing elements. One or more of the superhard bearing elements includes a superhard table, which may improve heat transfer from such superhard bearing elements.

The approach which is proposed here relates to an adjusting sleeve (105) for a bearing device (100) having at least one housing (110) for receiving a bearing sleeve (115), the bearing sleeve (115) for receiving a shaft (120), and the shaft (120). The adjusting sleeve (105) is configured to be capable of being received between the bearing sleeve (115) and the housing (110) and to be thermally conductive. To this end, an outer wall (125) of the adjusting sleeve (105) has at least one outer depression (135) which is configured to produce an outer chamber (140) between the adjusting sleeve (105) and the housing (110) in a received state of the adjusting sleeve (105) in the bearing device (100), and/or an inner wall (130) of the adjusting sleeve (105) has at least one inner depression (145) which is configured to produce an inner chamber (150) between the adjusting sleeve (105) and the bearing sleeve (115) in the received state of the adjusting sleeve (105) in the bearing device (100).

The invention relates to a monotectic aluminum plain bearing alloy having bismuth inclusions, which alloy is suitable for plastic deformation and consists of 1 to 20 wt % bismuth, at least one element selected from 0.05 to 7 wt % copper, 0.05 to 15 wt % silicon, 0.05 to 3 wt % manganese, 0.05 to 5 wt % zinc as a primary alloying element and, in combination, 0.005 to 0.4 wt % titanium, 0.005 to 0.7 wt % zirconium, 0.001 to 0.1 wt % boron as additional alloying elements, and optionally one or more further additional elements, the remainder aluminum. The plain bearing alloy is ultra-fine-grained and has superplastic-like properties.

A turbocharger includes a bearing housing defining an interior. The turbocharger also includes a shaft and a thrust bearing assembly disposed about the shaft. The thrust bearing assembly includes a thrust plate defining a bore configured to receive the shaft and having a first thrust surface which is integral. The thrust bearing assembly also includes a bearing having a second thrust surface which is integral. The thrust bearing assembly further includes a washer disposed between the thrust plate and the bearing. The washer has a third thrust surface which is integral, and an opposite fourth thrust surface which is integral. The third thrust surface faces the first thrust surface for engagement with the first thrust surface, and the fourth thrust surface faces the second thrust surface for engagement with the second thrust surface.

A sliding member including an overlay capable of realizing good fatigue resistance while preventing interlayer peeling. The sliding member includes an overlay formed of an alloy plating film of Bi and Sb. The overlay contains Bi, Sb, and unavoidable impurities. The concentration of Sb on the surface of the overlay is 0.92% by mass or more and 13% by mass or less.

A sliding member includes a back-metal layer and a sliding layer on the back-metal layer, and the sliding layer has a sliding surface. The sliding layer includes a synthetic resin and fibrous particles dispersed in the synthetic resin. A volume ratio of the fibrous particles in the sliding layer is 1 to 15%, and the fibrous particles are made of semi-graphite having a nano indenter hardness of 1000 to 5000 MPa. An average aspect ratio of the fibrous particles is not less than 5, where an aspect ratio is defined as a ratio of a major axis to a minor axis of the fibrous particle viewed from the sliding surface. An average grain size of the fibrous particles in cross-sectional view perpendicular to the sliding surface is 5 to 50 μm.

A bearing including a generally cylindrical sidewall including an electrically conductive substrate, and an electrically non-conductive or low-conductive sliding layer coupled to the substrate, where the generally cylindrical sidewall includes a plurality of protrusions protruding radially inward or radially outward from a bore defining a central axis, where at least one protrusion is adapted to contact an opposing component such that at a point of contact the bearing has a void area free of sliding layer so as to provide electrical conductivity between the bearing and the opposing component, and wherein at least one protrusion has a spring rate of not greater than 30 kN/mm, such as not greater than 25 kN/mm, such as not greater than 15 kN/mm, or such as not greater than 10 kN/mm.