Disclosed herein is a sliding member that has a coating layer serving as a sliding surface thereof so that even when foreign matter enters between the coating layer and a partner member, smoothness between them is maintained to prevent the occurrence of seizing. When the coating layer has an elastic recovery ratio of less than 60%, foreign matter that has entered between the coating layer and the sliding surface of a partner member is efficiently embedded in the coating layer. When the coating layer is formed of a resin composition, the resin composition contains a binder resin, a solid lubricant, and metal particles having a Young's modulus of 10 GPa or more but 100 GPa or less.

A plastic bearing material of a bearing may include a block copolymer. The block copolymer may include structural blocks of two or more different polymers. A first polymer may include at least one of polyamide-imide and polybenzimidazole. A second polymer may include at least one of polydimethylsiloxane, methyl vinyl ether and polyisobutene. A method for manufacturing a plastic bearing material may include synthesizing a structural block of a first polymer and a structural block of a second polymer to define a block copolymer via a condensation reaction.

A laminate article can include a substrate and a layer of a heterogeneous mixture of a non-fluorinated polymer compound and a fluorinated polymer compound. The laminate article can include a gradual concentration gradient along an axis perpendicular to the substrate. The gradual concentration gradient can include the change of the amount of the non-fluorinated polymer and the fluorinated polymer compound relative to the axis perpendicular to the substrate. The layer can further include at least one filler. The laminate can be applied as a bearing material.

The method comprises depositing a coating of metal material on the inside surface of the body (4) of the stator (36), impregnating said coating with a self-lubricating composite material (20), machining internal cells (28) in the thickness of the coating (10), and machining orifices (34) leading into the cells.

A half thrust bearing for a crankshaft of an internal combustion engine is formed of a back metal layer and a bearing alloy layer to have a slide surface and two thrust reliefs. Each thrust relieve includes a first region, where the back metal layer is exposed, on a circumferential end surface side, and a second region and a third region, where the bearing alloy layer is exposed while the slide surface includes a fourth region. A circumferential end region consists of the first and second regions. The bearing alloy layer includes a uniform thickness portion, and a decreased thickness portion adjacent to an inner-diameter-side end surface in a cross-section of the second region and includes a uniform thickness portion and an increased thickness portion adjacent to the inner-diameter-side surface in cross-sections of the third and fourth regions.

A half thrust bearing for a crankshaft of an internal combustion engine is formed of a back metal layer and a bearing alloy layer to have a slide surface and two thrust reliefs. Each thrust relieve includes a first region, where the back metal layer is exposed, on a circumferential end surface side, and a second region, where the bearing alloy layer is exposed, on the slide surface side while the slide surface includes two third regions adjacent to the second region, and a fourth region between the two third regions. A circumferential end region consists of the first, second and third regions. In the second region and the third regions, the bearing alloy layer includes a uniform thickness portion at a radial center, and a decreased thickness portion adjacent to an inner-diameter-side end surface.

A half bearing has a concave portion, a concave portion, and a concave portion penetrating from the outer circumferential surface to the inner circumferential surface, and the washer has a convex portion, a convex portion, and a convex portion on the inner circumferential surface side. The washer is moved to the outer circumferential surface side of the half bearing in a bent state, the convex portion is inserted into the concave portion, the convex portion is aligned with the position of the concave portion, and the convex portion is aligned with the position of the convex portion. Next, when the half bearing returns to its shape before being bent, the convex portion is accommodated in the concave portion, and the convex portion is also accommodated in the concave portion. Even if an axial force acts on the sliding bearing, the protrusion, the protrusion, and the protrusion engages with the concave portion, the concave portion, and the concave portion, so that the washer and the washer are not detached from the half bearing.

A bearing bush 1 includes a cylindrical portion 6 having a cylindrical inner surface 2 and a cylindrical outer surface 3; a cylindrical portion 12 having a cylindrical inner surface 7 and a cylindrical outer surface 8; a curved bulged portion 17 interposed between the cylindrical portions 6 and 12 in an axial direction X and having a curved concave inner surface 15 and a curved convex outer surface 16; an annular ring-shaped collar portion 19 provided at another end portion 18 in the axial direction X of the cylindrical portion 6 in such a manner as to extend in an outward direction A in a radial direction Y; a slit 21 which splits the cylindrical portions 6 and 12, the curved bulged portion 17, and the annular ring-shaped collar portion 19; and a plurality of inclined plate portions 23 which are formed integrally on an outer peripheral edge 22 of the annular ring-shaped collar portion 19 and extend in the outward direction A in the radial direction Y from the outer peripheral edge 22 in an inclined manner.

A sliding member includes: a lining layer formed from an alloy having a predetermined shape; and an overlay layer formed on an inner circumferential surface of the lining layer, the overlay layer being formed of a resin, the overlay layer sliding with a shaft, the overlay layer including a raised portion a height of which in a predetermined area including each of an edge in an axial direction of the shaft is greater than a height of another area of the overlay layer.

A sliding member includes a substrate, a first coating film layer which is provided on the substrate, and a second coating film layer which is provided on the first coating film layer. The first coating film layer including a coating film including a composition for a sliding member. The composition for a sliding member contains a binder resin, a solid lubricant, and at least one type of resin beads selected from the group consisting of amino resin beads and urethane resin beads. The second coating film layer includes the binder resin and the solid lubricant.