Axial sliding bearing arrangement for a pump impeller of a radial pump and a radial pump comprising the axial sliding bearing arrangement

Axial sliding bearing arrangement for a pump impeller (8) of a radial pump (1) with a first, rotating friction surface (22) pointing in an axial direction (A), a second, non-rotating friction surface (23) facing the first, rotating friction surface (22), wherein the second, non-rotating friction surface (23) is allocated to a swivel head body (20), wherein the swivel head body (20) is axially supported via an axial support surface (24), and the swivel head body (20) is radially supported in a resiliently yielding manner at radial support surfaces (25) by means of first spring means (31).

A link rod for a motor vehicle, with a connecting rod (4) designed with an open profile that extends in an axial direction (x), which comprises a back (8) and two opposed sidepieces (9, 10) which are connected to one another by the back (8), extending away from the back so as to enclose an angle (a) of less than 180° between them. Two joints (2, 3) are connected to one another by the connecting rod (4), each joint comprises a joint housing (5) and an inner joint component (6) that is fitted and able to move in the housing and extends outwardly therefrom. The connecting rod (4) is embedded, at its respective axial ends, in one of the joint housings (5), and the sidepieces (9, 10) enclose an angle (α) of at least 90° between them.

A bush bearing 7 includes a synthetic resin-made bush 17 having a circumferential groove 16 on an outer peripheral surface 15 thereof; an endless annular elastic member 18 fitted in the circumferential groove 16 of the bush 17; and a positioning means 19 for determining the position of the bush 17 in a B direction with respect to an inner peripheral surface 12 of a gear housing 6.

A journal bearing assembly includes a first journal bearing disposed about a longitudinal end of a gear shaft and spaced a first distance from a first axial gear face. A first fluid film location and a first hybrid pad location are annularly between an inner surface of the first journal bearing and an outer surface of the gear shaft. The first hybrid pad location circumferentially adjacent to the first fluid film location has a minimum leading edge angular location of at least about 31.0° measured relative to a first bearing flat. A first porting path provides high pressure fluid communication from a location outside the first journal bearing to the first fluid film location at or adjacent to the first hybrid pad location.

A bearing component can include a metal substrate layer, shaped so as to include a generally annular sidewall having a central axis and defining a first and a second opposite ends in an axial direction; and a radial flange bent so as to extend in a radial direction from one of the first and second ends of the generally annular sidewall, wherein, in a pre-shaped state, the metal substrate layer includes at least two flange segments extending in the axial direction and defining a gap extending toward an opening.

An apparatus includes a connecting rod having a surface that defines an opening to receive a pin for coupling the connecting rod to a piston at a first end of the connecting rod. The surface includes a groove arrangement to collect, retain and distribute lubrication fluid in the space between the pin and the inner surface. The surface can be formed by the connecting rod or a bushing in an opening of the connecting rod.

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 wheel bearing apparatus has a double row angular contact ball bearing. A height of a shoulder of a shoulder portion (18) of an outer member (12) with respect to a ball diameter of a double ball (14) row is set in a range of 0.35 to 0.50 mm. A corner (19) of the shoulder portion (18) has a relief surface (19a) and a chamfered portion (19b). The relief surface is on a straight line that is on a tangent line of an outer raceway surface (12a). The chamfered portion (19b) is round in a circular arc with a predetermined radius of curvature r. The corner (19) is formed simultaneously by a formed grinding wheel forming the double row outer raceway surface (12a). The corner is formed smoothly continuous from each outer raceway surface (12a). A length in the radial direction of the relief surface (19a) is set greater than or equal to 0.2 mm.

A ratio W1/W2 of a circumferential width W1 of each of inclined hill portions G2 of a radial dynamic pressure generating portion G and a circumferential width W2 of each of inclined groove portions G3 is 1.2 or larger. And when an inner diameter of a bearing member is D, the circumferential width W2 of each of the inclined groove portions satisfies 0.2D≦W2≦0.4D.

A linear motion guide unit includes a guide rail and a slider. A carriage of the slider has a central portion located above the guide rail, and wing portions which extend downward from widthwise opposite ends of the central portion. Shoulder portions of the carriage located in inner boundary regions between the central portion and the wing portions of the carriage have first inclined surface so that the shoulder portions have padding portions. Corner portions of the guide rail located between an upper surface and longitudinal sides of the guide rail have second inclined surfaces which face the first inclined surfaces of the carriage and extend in the longitudinal direction parallel to the first inclined surfaces. The first inclined surfaces have an inclination angle substantially the same as an inclination angle of the nose surfaces of threaded holes formed in the carriage for attachment of a counterpart member.