Provided is a sliding bearing capable of reducing the number of components and reducing costs. This sliding bearing (1) is provided with; an upper case (2); a lower case (3) combined with the upper case (2); and an annular dust seal-integrated center plate (8) that has a dust seal part (6) for covering a gap between the upper case (2) and the lower case (3), is disposed between the upper case (2) and the lower case (3), and enables relative rotation between the upper case (2) and the lower case (3). The dust seal-integrated center plate (8) is integrally formed with the lower case (3).

Condition monitoring a cage to detect cage damage by detecting if a conducting material applied to a cage is unbroken or broken. The basic principle of the invention is to integrate a completely passive LC circuit, having the conductive material, on the cage. The LC circuit is magnetically activated and it is externally detectable when conducting material is unbroken or broken. The conducting material of the passive LC circuit is easily broken or worn, being weaker than the cage material. The cage material is non-metallic, such as a polymer material or other suitable synthetic materials.

A sliding bearing includes a backing layer, a bonding layer with at least one fluorination-treated surface, and a sliding layer. A method for preparing the sliding bearing includes performing a fluorination treatment on a surface of the bonding layer, placing a surface of the bonding layer on a surface of the backing layer, and placing a surface of the sliding layer on a surface of the bonding layer to form a laminated assembly, heating and pressurizing the laminated assembly, and cooling the laminated assembly in a pressurized state.

A rolling bearing including a cage is provided. The cage includes, on its outer peripheral surface, a plurality of ridges protruding radially outwardly, and circumferentially spaced apart from each other. The ridges extend in the axial direction or in an oblique direction or directions relative to the circumferential direction. The ridges are capable of coming into contact with the inner peripheral surface of the outer ring through lubricating oil.

An adhesive layer can include a polymer blend of a first polymer and a second polymer. In an embodiment, the first polymer can be a modified fluoropolymer. In another embodiment, the second can be a non-fluorinated polymer. In a particular embodiment, the adhesive layer can include greater than 60 wt. % of the first polymer for the total weight of the polymer blend. A bearing can include the adhesive layer disposed over a substrate.

The present invention provides a sliding member which is superior to a conventional polyamide sliding member not only in mechanical properties (especially, flexural property) but also in sliding property. The present invention relates to a sliding member comprising unmodified cellulose fibers or cellulose fibers in which a part of hydroxyl groups from cellulose has been modified with a hydrophilic substituent, which have an average fiber diameter of 10 m or less, in an amount of 0.1 to 50 parts by mass with respect to 100 parts by mass of a polyamide resin.

A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.

A greaseless pivot center swivel and bearing device is provided. The device includes an outer housing having a sidewall with top and bottom portions, a top plate coupled with the top portion that includes an opening therein, and a bottom plate coupled with the bottom portion that includes an opening therein. The sidewall cooperates with the top and bottom plates to define an interior volume. A plurality of bushing members formed of a low-friction material are positioned within the interior volume and include a surface cylindrically curved about an axis extending between the top and bottom plates of the housing. The cylindrically curved surfaces cooperate with the openings in the top and bottom plates to define a cylindrical passage through the interior volume sized and shaped for receiving a cylindrical tube that rotates therein, e.g., a tube configured to connect with a water supply column of a mechanized irrigation system.

A greaseless pivot center swivel and bearing device is provided. The device includes an outer housing having a sidewall with top and bottom portions, a top plate coupled with the top portion that includes an opening therein, and a bottom plate coupled with the bottom portion that includes an opening therein. The sidewall cooperates with the top and bottom plates to define an interior volume. A single, unitary bushing member formed of a low-friction material is positioned within the interior volume and includes a surface cylindrically curved about an axis extending between the top and bottom plates of the housing. The cylindrically curved surface cooperates with the openings in the top and bottom plates to define a cylindrical passage through the interior volume sized and shaped for receiving a cylindrical tube that rotates therein, e.g., a tube configured to connect with a water supply column of a mechanized irrigation system.

A bearing bush includes at least one sealing element and one bearing element. The sealing element is provided with at least one sealing lip. The bearing element is substantially tubular. The bearing element includes a plurality of protrusions extending in the axial direction on the outer circumference. The inner diameter of the bearing element is larger in the sections corresponding to the protrusions than in the remaining sections.