Provided is a sliding component capable of stably reducing the frictional resistance of a sliding surface entailing eccentric rotation. A sliding component has an annular shape with high-pressure and low-pressure fluids facing inside and outside of the sliding component and has a sliding surface relatively sliding with eccentric rotation. The sliding surface is provided with a plurality of high-pressure grooves open to a space in which the high-pressure fluid exists and a plurality of low-pressure grooves open to a space in which the low-pressure fluid exists. The high-pressure and low-pressure grooves are arranged in a circumferential direction.

A sliding component has an annular shape with a fluid facing inside and outside of the sliding component and has a sliding surface relatively sliding with eccentric rotation, in which the sliding surface includes a land and a plurality of dynamic pressure generation mechanisms arranged in a circumferential direction, the dynamic pressure generation mechanism includes a shallow groove portion and a deep groove portion, the shallow groove portion communicates with the deep groove portion, and a communication passage providing a communication between the deep groove portion and either an inside space or an outside space of the sliding component is formed in the sliding component.

A cradle bearing for supporting a swashplate of a variable hydraulic axial piston. The cradle bearing is of an angular ball bearing type or comprises, with respect to the bearing axis, a tapered inner race and/or a tapered outer race. A swashplate for a variable hydraulic axial piston unit including a first and a second cradle bearing zone spaced to each other in axial direction of a swashplate tilt axis, suitable for supporting the swashplate in a housing of a variable hydraulic axial piston unit, wherein the first cradle bearing zone is inclined with respect to the swashplate tilt axis. A variable hydraulic axial piston unit of the swashplate type including a swashplate which is supported rotatable in the housing of the variable hydraulic axial piston unit at a first bearing zone by a tapered bearing and at a second bearing zone by regular cylindrical cradle bearing or a journal bearing whose axis is aligned with the swashplate tilt axis.

A bearing device, a compressor and a method, in which a first radial bearing element is measured in at least the radial direction, an axial distance of the first axial bearing element from the first radial bearing element being measured, the second radial bearing element being measured in at least the radial direction, the first radial bearing element being positioned with respect to the second radial bearing element as a function of the predefined first width of the radial gap, the adjustment arrangement being situated in such a way that the axial gap has the predefined second width.

Pump assemblies, pumping systems including said pump assemblies, and related methods are disclosed. In an embodiment, the pump assembly includes a frame, a fluid end, and a power end coupled to the frame and the fluid end. In addition, the pump assembly includes a plurality of connectors coupled between the fluid end and the frame. Each of the connectors include an axis, a first connector member, and a second connector member. The first connector member is configured to actuate relative to the second connector member to adjust a total axial length of the connector along the axis.

A cradle bearing for supporting a swashplate of a variable hydraulic axial piston. The cradle bearing is of an angular ball bearing type or includes, with respect to the bearing axis, a tapered inner race and/or a tapered outer race. A swashplate for a variable hydraulic axial piston unit including a first and a second cradle bearing zone spaced to each other in axial direction of a swashplate tilt axis, suitable for supporting the swashplate in a housing of a variable hydraulic axial piston unit, wherein the first cradle bearing zone is inclined with respect to the swashplate tilt axis. A variable hydraulic axial piston unit of the swashplate type including a swashplate which is supported rotatable in the housing of the variable hydraulic axial piston unit at a first bearing zone by a tapered bearing and at a second bearing zone by regular cylindrical cradle bearing or a journal bearing whose axis is aligned with the swashplate tilt axis.

The present invention discloses a magnetic rolling bearing capable of reducing the balance radial force of the gear pump, which includes a magnetized inner ring, a rolling body, a cage, and a magnetized outer ring assembly. The inner ring is magnetized to make the inner and outer ring surfaces of the magnetized inner ring have different magnetic properties; the magnetized outer ring assembly consists of four components, namely an upper ring surface of the magnetized outer ring assembly, a lower ring surface of the magnetized outer ring assembly, and two components in left and right. The left and right components are not magnetized, they are connected by recesses and are fixed with bolts, and the four components are alternately connected to form a complete ring.

Some embodiments of the disclosure disclose a bearing assembly and a compressor with the bearing assembly. The bearing assembly includes: a retainer assembly (50), a bearing stationary ring (40), and a bearing rotary ring (10). The retainer assembly (50) is disposed between the bearing stationary ring (40) and the bearing rotary ring (10). A lubrication passage is provided in an end face of the bearing rotary ring (10).

The disclosure discloses a pump body and a compressor with the pump body. The pump body includes: a flange structure; a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure.

A pivot cradle bearing (1) for an axial piston machine, including a bent cage segment (2), in which rolling bodies are guided, which are arranged between two bearing parts which can be pivoted with respect to one another, wherein a synchronization device (4), which is designed for synchronizing the relative movement of the bearing parts with the displacement of the cage segment (2), includes a pivoting lever (5) which is mounted in the cage segment (2). An articulated bearing (6) is provided for mounting the pivoting lever (5) in the cage segment (2), the articulated bearing having an asymmetrical design with respect to a tangential plane (TE) lying centrally between an inner circumferential surface and an outer circumferential surface of the cage segment (2).