A bearing arrangement for a unit that is mutually turnable around a centre of rotation (R) comprising an external part (1) and an internal part (7), which, with the aid of high hydraulically acting pressure, is arranged to achieve a reciprocating rotary motion, or that is arranged to achieve a high hydraulic pressure from an applied torque from a reciprocating motion, whereby the external part (1) is provided with side walls arranged to axially surround at least a part of the internal part (7), and whereby the external part (1) comprises a radially inwardly arranged and essentially surrounding cavity (11, 12, 13, 14) in which the internal part (7) is arranged such that it can be rotated, which cavity (11, 12, 13, 14) is limited in the circumferential direction by at least one wing (3, 4) that protrudes inwards from the external part (1) and also limited by at least one wing (9, 10) that protrudes radially outwards from the internal part (7), which wings (3, 4, 9, 10) limit at least two chambers or compartments (11, 12, 13, 14) between the external part (1) and the internal part (7). At least one of the side walls of the external part is fixed connected with the, at least one, wing (3, 4) that protrudes radially inwards towards the internal part (7), which wing demonstrates a surface that faces radially inwards and that has a circular concave curvature for connection with an outwardly facing circular convex contact surface (8) at the internal part (7).

On a facing surface (12a) of a pad (12) that faces a rotation shaft, an oil supply unit (24) is provided in an end region downstream of the rotation shaft in the rotation direction, and the oil supply unit (24) is formed along part of an isopleth of the pressure distribution on the facing surface (12a) generated by a lubricant being caught between the rotation shaft and the facing surface (12a), said part of the isopleth being downstream, in the rotation direction, of the pressure maximum of the pressure distribution.

A T-film bearing for a vibration fixture including a bottom plate, two spaced apart middle plates positioned on the bottom plate, two spaced apart top plates positioned on the middle plates in which the middle plates and the top plates form a T-shaped linear channel for movement of a T-shaped guide member of a slip plate, and oil distribution grooves positioned on a top surface of each of the top plates and the bottom plate defining an independent pressure area, and each groove having a dedicated flow restrictor for supplying lubricating oil to the groove for lubricating reciprocating travel of the guide member within the linear channel and the slip plate on the top plates.

A fluid bearing for use in turbomachinery including at least one bearing pad configured to be arranged about a rotating member of the turbomachinery. Each bearing pad includes an internal cooling opening defined in the bearing pad and an internal channel network defined in the bearing pad with at least one channel node in fluid communication with the internal cooling opening and at least two passageways in fluid communication with and extending from the channel node through the bearing pad. At least one of the passageways extends to an exterior surface of the bearing pad to define at least one cooling discharge opening.

A low-vibration floating metal bearing includes a slide bearing. The slide bearing includes oil supply holes formed at six isogonal positions in an isotropic manner with respect to an axial center, and a substantially circular bearing hole having a surface on which at least six regions with different fluid lubrication conditions are formed by inner machining so as to be continuously disposed at isogonal positions in an isotropic manner with isotropic distance with respect to an axial center. Each of the regions with different fluid lubrication conditions forms a narrow flow path that is substantially convex in cross section and extends in an axial center direction in an oil flow path by changing the amount of clearance between the surface of the substantially circular bearing hole and the surface of a substantially circular axis.