To provide a rolling bearing having superior handling property and creep resistance. A rolling bearing 1 includes an inner ring 2 and an outer ring 3 that are raceway rings, and a plurality of balls 4 interposed between the inner ring and the outer ring. The outer ring 3 is fitted to a housing 10. The rolling bearing 1 includes a surface coating film 8 on an outer ring outer diametrical surface 3a that is a fitting surface with the housing 10. The surface coating film 8 contains: a binder containing two or more kinds of thermosetting resins having different average molecular weights; and a solid lubricant. The solid lubricant contains molybdenum disulfide, polytetrafluoroethylene resin, and graphite.

A synthetic resin rolling bearing retainer is to be arranged between an inner ring and an outer ring of a rolling bearing. A plurality of guided portions protruding radially outward from an outer diameter surface of the retainer is provided along a circumferential direction of the outer diameter surface. Each of the guided portions has a guide surface protruding to be in sliding contact with the outer ring, a chamfered portion formed at an edge portion of the guide surface, and a groove portion formed at a portion of the guide surface in an axial direction. The guide surface and the chamfered portion have surface properties where an arithmetic average roughness Ra is 1.0 to 9.8 m and a maximum height Rt is 10.1 to 102.9 m. A parting line is provided radially inside the guide surface.

A sliding element for an engine may include a polymer-based overlay layer disposed on a metallic substrate. The polymer-based overlay layer may include a polymer-based matrix and a metal particulate. The metal particulate may be a surface treated metal particulate.

A coating composition for a lubricating coating film includes: (A) a phenolic resin; (B) an epoxy resin having an epoxy equivalent weight of 600 to 4000; and (C) at least one type of solid lubricant. The epoxy equivalent weight is generally defined by the number average molecular weight per the number of epoxy groups in a single molecule. The coating composition has a weight ratio of component (A) to the total weight of component (A) and component (B) of at least 50 weight %. A lubricating coating film, formed from the coating composition, has a high level of flexibility on surfaces of various base materials.

An object of the present invention is to provide a vibration damping device including a bearing member capable of achieving simplification of configuration in the vibration damping device, reducing frictional force during operation, and having an excellent wear resistance. A vibration damping device of the present invention includes a bearing structure, in which a metal bush (bearing member) has a resin layer on a side defined as a friction sliding surface of a base member, the resin layer includes polytetrafluoroethylene (PTFE) and a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin, and the metal bush is lubricated by a magneto-rheological fluid composition.

A bearing including a phthalonitrile-based polymer material. In one embodiment, the bearing is configured to withstand a temperature conditions of at least 600 F.

A sliding engine component may include a sliding surface including a plastic polymer-based layer disposed on a metallic substrate. The plastics polymer-based layer may include a plurality of plastic polymer-based layers. The plurality of plastic polymer-based layers may include a first coating of a first polymer-based layer deposited on the metallic substrate and cured at a first temperature, and a second coating of a second polymer-based layer deposited onto the first polymer-based layer and cured at a second temperature. The second temperature may be lower than the first temperature.

A synthetic resin rolling bearing retainer is to be arranged between an inner ring and an outer ring of a rolling bearing. A plurality of guided portions protruding radially outward from an outer diameter surface of the retainer is provided along a circumferential direction of the outer diameter surface. Each of the guided portions has a guide surface protruding to be in sliding contact with the outer ring, a chamfered portion formed at an edge portion of the guide surface, and a groove portion formed at a portion of the guide surface in an axial direction. The guide surface and the chamfered portion have surface properties where an arithmetic average roughness Ra is 1.0 to 9.8 m and a maximum height Rt is 10.1 to 102.9 m. A parting line is provided radially inside the guide surface.

A semicircular tube-shaped bearing has a bearing main body that is formed from a resin, has a semicircular tube shape, and has an inner circumferential surface that slides over an opposing shaft and an outer circumferential surface that comes into contact with a housing. The semicircular tube-shaped bearing may have a structure in which multiple resin layers are laminated in a direction of radiation from the axial center. In this case, the bearing main body has a first layer that includes the outer circumferential surface and a second layer that includes the inner circumferential surface. The first layer is formed from a thermosetting resin. The first layer may include fiber reinforced resin in which fibers are mixed with a thermosetting resin. The second layer is formed from a thermoplastic resin. The second layer may include fiber reinforced resin in which fibers are mixed with a thermoplastic resin.

The present invention relates to a non-magnetic needle bearing for use in a rotational machine such as, for example, an MRI. The needle bearing may include needles, a cylindrical retainer holding the needles at a predetermined pitch, an outer ring outside of the retainer, and an inner ring inside the retainer. All of the aforementioned may be made of a non-thermoplastic polyimide resin.