A turbocharger assembly can include a housing with a through bore and an axial face disposed in the through bore; a locating plate with a keyed opening attached to the housing; and a journal bearing disposed in the through bore where the journal bearing includes a keyed compressor end and an enlarged outer portion defined between two axial faces by an outer diameter and an axial length where the axial face disposed in the through bore of the housing, the locating plate, and the two axial faces of the journal bearing axially locate the journal bearing in the through bore and where the keyed opening of the locating plate and the keyed compressor end of the journal bearing azimuthally locate the journal bearing in the through bore. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

A crankshaft and main bearing assembly for an internal combustion engine, includes: a crankshaft (1) with a first main bearing journal (10), a second main bearing journal (20), and one crankpin journal (110) parallel with, but radially spaced from and positioned between the first and second main bearing journals (10, 20). The first and second main bearing journals (10, 20), each have relevant first or second primary entrance openings (11, 21) in an outer surface for receiving fluid lubricant from the confronting first or second main bearing sleeves (210, 220). The one first crankpin journal (110) has a single exit opening (111) on an outer surface for supply of lubricant, in fluid communication with at least one of the primary entrance openings (11, 21). The main bearing journals (10, 20) on their outer surfaces each also have secondary entrance opening (12, 22) circumferentially spaced from the respective primary entrance openings (11, 21) and radially opposite thereto for also receiving fluid lubricant. The primary entrance opening (21) of the second main bearing journal (20) also is in an angularly spaced position with respect to the primary entrance opening (11) of the first main bearing journal (10), at an angle substantially greater than 0 degrees, but substantially less than 180 degrees. The secondary entrance openings (12, 22) are also in fluid communication with the single exit opening (111) of the one crankpin journal (110), and circumferential grooves of main bearing sleeves.

A journal bearing includes: a rotation shaft which is rotatable about an axis; a bearing lower half portion which slidably supports an outer circumferential surface of the rotation shaft; a bearing upper half portion which supports an upper side half portion of the outer circumferential surface of the rotation shaft; and a lubricating oil supply device which supplies lubricating oil between the bearing lower half portion and the bearing upper half portion, and the rotation shaft, wherein the bearing upper half portion includes a bearing body which faces the outer circumferential surface of the upper half portion of the rotation shaft, a land portion which protrudes inward in a radial direction from an inner circumferential surface of the bearing body, and a guide portion which guides lubricating oil to the sliding surface of the land portion.

A bearing assembly for use in a blood pump includes a first component that has a convex bearing surface and a first outer surface proximate the convex bearing surface. The bearing assembly includes a second component that a concave bearing surface and a second outer surface proximate the concave bearing surface, the concave bearing surface being configured to receive the convex bearing surface. A plurality of grooves are defined through the convex bearing surface and first outer surface or through the concave bearing surface and the second outer surface.

A bearing pad and bearing are provided which can inhibit the bearing pad from being deformed without increasing the costs. In a bearing pad (2), a conduit that extends from a first opening (3a) formed in a high temperature zone (2H) on a sliding surface (2a) opposing to a supported surface (1a) towards the direction apart from the supported surface (1a) and that finally reaches a second opening (3d) is formed.

An inner half-ring of a spherical plain bearing has a spherical outer surface, a cylindrical inner surface, and a first flat front face and a second flat front face delimiting the half-ring in a circumferential direction. The first and second flat front faces extend between the outer surface and the inner surface, and a first central groove is formed in the first front face and extends between the outer surface and the inner surface.

A thrust washer is provided with a ring-shaped portion that surrounds an insertion hole, the thrust washer is provided with a sliding surface and an oil groove configured to allow lubricating oil to flow in, the oil groove is provided with an opening portion configured to allow the lubricating oil to flow in from the insertion hole side in an inner peripheral end side, an outer periphery end side of the ring-shaped portion of at least one of the oil groove is provided with an oil stop wall which is configured to suppress flow of the lubricating oil toward an outer periphery side of the ring-shaped portion, and a sliding area ratio of each of the sliding surfaces to a projection plane in plan view of the ring-shaped portion is provided within a range of from 60% to 85%

A hydrodynamic slide bearing (10, 10′) supports a shaft (14, 14′) that is mounted rotatably. The hydrodynamic slide bearing (10,10′) comprises a plurality of bearing segments (12, 12′) arranged next to one another in the rotation direction (22, 22′). The segment surfaces together form a running surface (16, 16′) for the shaft (14, 14′). At least one bearing segment (12, 12′) has a plurality of grooves (26, 26′) disposed in its segment surface, and the grooves (26, 26′) are orientated substantially transverse to the rotation direction (22, 22′). The rear groove edges (261) in the rotation direction (22, 22′) are orientated obliquely to their respective assigned radial plane (24, 24′) and are undercut in relation to their respective assigned radial plane (24, 24′). The front groove edges (262) in the rotation direction (22, 22′) are not undercut and are orientated obliquely to their respective assigned radial plane (24, 24′).

A gear assembly comprises an axle defining an axis of rotation, a gear mounted to the axle for rotation relative to the axle about the axis of rotation, a pin, and a thrust washer disposed axially adjacent to the gear. The pin is disposed in a portion of the thrust washer and extends into the axle.

A washer assembly and a hydrodynamic torque converter comprising the washer assembly is provided. The washer assembly comprises a washer and a plate; the washer is annular and comprises a washer body and two or more positioning clamps protruding radially inward from an inner periphery of the washer body, at least one side of the positioning clamp in a circumferential direction having a positioning protrusion protruding; the plate is annular, an inner periphery portion of the plate being provided with two or more positioning notches; an edge of at least one side of the positioning notch in the circumferential direction being provided with a positioning groove; and the washer is mounted to one end face of the plate. The washer assembly saves the internal space of the torque converter and saves the material cost of the washer.