A radial bearing having a wear surface with improved wear characteristics comprises a steel support, to which is bonded a metal carbide composite wear surface made by first arranging, within a cavity defined between a steel mold and the steel support, tiles made of microwave sintered, cemented metal carbide, closely packing the voids between the tiles with metal carbide powder, and infiltrating the mold cavity with a metal brazing alloy by subjecting the filled mold to rapid heating. The brazing alloy fills voids between the metal carbide particles, the microwave sintered metal carbide tiles, and the metal support, thereby relatively rapidly consolidating the carbide into a wear layer bonded with the steel support without substantially damaging the properties of the microwave-sintered metal carbide tiles.

A fluid machine includes a rotating body, an operation body rotated integrally with the rotating body, a housing, hydrodynamic plain bearings rotatably supporting the rotating body relative to the housing, and a cooling passage arranged in the housing. The hydrodynamic plain bearings each include a resin coating layer at a portion that is opposed to the rotating body. The hydrodynamic plain bearings include at least one combination of hydrodynamic plain bearings. Each combination includes an upstream hydrodynamic plain bearing and a downstream hydrodynamic plain bearing located at different positions in a direction in which the fluid flows through the cooling passage. The coating layer of the upstream hydrodynamic plain bearing has a lower hardness than the coating layer of the downstream hydrodynamic plain bearing.

A coating mask for bearing and covering a portion of a to-be-plated component includes at least one bearing unit. Each bearing unit includes a first bearing portion, a second bearing portion, and at least two ribbed plates. An annular groove is defined between the first bearing portion and the second bearing portion. The at least two ribbed plates are formed in the annular groove. Each of the at least two ribbed plates includes a first ribbed portion and a second ribbed portion connected to the first ribbed portion. The first ribbed portion is connected to the second bearing portion; the second ribbed portion is connected to the first bearing portion. An included angle θ.sub.1 is defined by the first ribbed portion and the second ribbed portion, and θ.sub.1 is an obtuse angle. The disclosure also relates to a coating device.

A method for controlling deformation of a large-scale crankshaft comprising detecting and recording stress value(s) of part(s) to be regulated by the crankshaft; fixing the crankshaft on a tool to couple transmitting ends of high-energy acoustic beam transducers with the part(s) to be regulated; turning on the high-energy acoustic beam transducers to emit high-energy acoustic beams into the crankshaft, controlling working frequencies of the high-energy acoustic beam transducers within a range of 10-30 kHz, and setting a predicted regulation and control time according to the stress value(s) of the part(s) to be regulated; and closing the high-energy acoustic beam transducers when the predicted regulation and control time is reached, and taking the crankshaft out of the tool.

A bearing assembly includes a first locating bearing and a second locating bearing configured to be mounted on a shaft. The first locating bearing includes a two-part outer ring formed from a radially inward outer ring and a radially outward outer ring, and a diameter of the inward outer ring is smaller than a diameter of the outward outer ring.

A rolling bearing includes an inner ring, an outer ring, and a plurality of balls interposed between the inner ring and the outer ring. The inner ring and the outer ring are made of stainless steel. A raceway surface with which the ball is in rolling-contact in each of the inner ring and the outer ring and is a superfinished surface and a coating layer made of a solid lubricating film is formed on the superfinished surface.

In order to determine information about the generation of heat in a bearing (10) in a simple manner, a bearing (10) includes an outer ring (12) secured to a securing member, and an inner ring (11) provided on the inside of the outer ring (12) and secured to a shaft that rotates in the circumferential direction relative to the securing member. A thermal flow sensor (14) is provided as a coating on a securing-side surface that includes the outer ring (12), and generates a thermoelectromotive force including information about frictional heat generated with the rotation of the shaft.

A method of coating an alloy substrate includes providing an alloy substrate that includes less than 0.3 wt. % of diffusible elements; introducing one or more diffusible elements into the alloy substrate to thereby form a diffusible-element-containing alloy substrate; and introducing the diffusible-element-containing alloy substrate to a material reactive with the one or more diffusible elements.

A bearing, such as a plain bearing or a rolling bearing, including at least one coating on at least one surface of at least one element of the bearing, the at least one coating including at least one sensor that is integrated into the coating, the sensor being a nanosensor that includes at least one nanoparticle.

A method for producing a housing-side or rotor-side bearing body of a sliding bearing arrangement for mounting a rotating shaft of a rotor in a fixed housing. Providing a basic body of the bearing body. Processing the basic body on a surface by forming multiple intersecting grooves, between the intersecting grooves multiple bar-like protrusions are formed. Reforming the protrusions subject-to form a defined pattern of undercut-like recesses or geometries. Applying a sliding bearing material to the surface having the reformed protrusions subject to infiltrating or filling the undercut-like recesses or geometries.