Abstract: In a generator in which a stator is fixed to a housing which includes a first bracket having a bearing portion for pivotally supporting one end portion of a rotary shaft, and a second bracket covering a cooling fan that rotates with the rotary shaft, and a rotor surrounded by the stator is fixed to the rotary shaft, the stator is fixed to the first bracket, and the first bracket is integrally provided with a tubular portion which surrounds the stator for permitting cooling air sucked in by the cooling fan to flow between the tubular portion and an outer periphery of the stator, and the second bracket is connected to the tubular portion. Accordingly, cost is reduced by connecting first and second brackets together without using long through-bolts, and efficiency of cooling the stator is enhanced by making the cooling air flow along the outer periphery of the stator.

Abstract: An electric motor comprising a housing, a stator which is fastened to the housing, a rotor which is arranged at an inside of the stator, a bearing which is attached to the housing to support a shaft of the rotor, a shield member which is attached to the bearing to prevent scattering of lubricant enclosed in the bearing, and a scatter preventing member which extends from the housing so as to be positioned between the bearing and an iron core of the rotor, and prevents scattering of component parts of the bearing to the inside of the housing.

Abstract: A fluid bearing device is manufactured with a high adhesive strength in fixing another member by adhesion to a resin housing. A bearing sleeve is secured in position inside the resin housing, and a shaft member is radially supported in a non-contact fashion by a dynamic pressure action of lubricant generated in a radial bearing clearance between the shaft member and the bearing sleeve. A metal bracket for mounting the stator coil of a motor is fixed by adhesion to the outer periphery of the housing, in which the adhesion portion of the outer periphery of the housing to be fixed to the bracket is roughened, setting the surface roughness to 0.5 ?mRa to 2.0 ?mRa.

Abstract: A seal member is fixed to a predetermined position on an outer peripheral surface of a shaft portion. During rotation of a shaft member, a lower end surface of the seal member is opposed to an upper end surface of a bearing sleeve through an intermediation of a thrust bearing gap to form a second thrust bearing gap. An outer peripheral surface of the seal member defines between itself and an inner peripheral surface of an upper end portion of a housing a seal space having a predetermined volume.

Abstract: A production method of a disk drive device includes: an assembling process of assembling a subassembly by incorporating at least a bearing unit in a hub in a clean room; a pouring process of pouring a lubricant in the bearing unit; a cleaning-liquid discharging process of discharging a cleaning liquid to the hub; a cleaning-liquid intake process of taking in the cleaning liquid discharged to the hub; and a sealing process of sealing the subassembly in a seal-material.

Abstract: A method of manufacturing bearing seal for use in a roller bearing is provided. A steel coil of a preselected width is fed into a ring rolling machine to form a closed coil ring. The closed coil ring is then welded along the butted joint. The welded closed coil ring is then fed to a series of pre-forming machines wherein the desired profiles of the final bearing seal are formed.

Abstract: The assembly includes a pump bearing ring that is fitted with at least one bearing groove and is disposed in/on a bearing seat of a plastic coolant pump housing with an axial bearing collar, and several positioning webs which are located on the bearing seat. Separate adhesive grooves are placed between the positioning webs and the bearing collar. The adhesive grooves are provided with liquid-tight walls in four of the axial directions, an opening in the direction of the pump bearing ring, and slot-shaped adhesive pockets in the area of the outer edge of the pump bearing. A method for mounting a pump bearing in/on a plastic coolant pump housing includes steps of spreading adhesive on a bearing ring, pressing the bearing ring into/onto the bearing seat, and inductively heating the pump bearing in the plastic coolant pump housing.

Abstract: Insulation assemblies that are useful with bearing assemblies that fit in openings in bearing brackets of rotating machines, such as large synchronous motors or generators.

Abstract: A clutch release bearing device having an interior and an exterior raceway. The exterior raceway is equipped with a ring wall being retracted underneath the path radius of an inner roller body raceway. An interior sealing device is provided, including a ring element axially supported on an inner radial wall section of the retracted ring wall.

Abstract: A method of manufacturing bearing seal for use in a roller bearing is provided. A steel coil of a preselected width is fed into a ring rolling machine to form a closed coil ring. The closed coil ring is then welded along the butted joint. The welded closed coil ring is then fed to a series of pre-forming machines wherein the desired profiles of the final bearing seal are formed.

Abstract: There are provided a hydrodynamic bearing assembly and a method of manufacturing the same. The hydrodynamic bearing assembly includes: an oil sealing part formed between a fixed member and a rotating member; and an oil barrier film disposed so as to prevent leakage of oil from the oil sealing part and including a self-assembled monolayer formed on a surface of at least one of the fixed member and the rotating member. The oil barrier film may be easily formed at room temperature and be continuously used for a long period of time without being damaged due to external impacts.

Abstract: In one example, a fluid dynamic bearing motor having a shield member is provided. In one example, the method includes disposing a first member and a second member for relative rotation about an axis of rotation. An annular shield member is attached to the first member, the shield member disposed adjacent a fluid reservoir for containing a bearing fluid. The reservoir is filled through an aperture (e.g., a fill hole) in the shield member. Thereafter, the aperture is at least partially sealed. The aperture may be hermetically sealed via one or more laser pulses. In other examples, a two piece shield is provided for shielding a reservoir without a fill hole.

Abstract: A drawn cup needle roller bearing 30 having a seal ring comprises: a shell 31 having a raceway surface 31a on an inner circumferential face and also having inward flange portions 31b, 31c in both end portions; a cage 32 having a plurality of pockets 32a in a circumferential direction and worked by cutting; a plurality of needles 33 retained in the pockets 32a so that the needles freely rotate along the raceway surface 31a; and a seal ring 34, the shape of which is cylindrical, arranged inside the shell 31 between an end face 32b of the cage 32 and the inward flange portion 31b. The seal ring 34 composes a floating seal and is formed by press working. Due to the foregoing, an excellent dimensional accuracy can be provided and a quantity of lubricant passing through the bearing can be controlled.

Abstract: A method for producing an airtight container includes preparing an assembly having a first substrate and a frame member, the first substrate having an electron-emitting element formed on a first surface thereof, the frame member mounted on the first surface outside an area where the electron-emitting element is formed; forming a temporary assembly having the assembly and a second substrate by bringing the second substrate into contact with the frame member via a joining member such that an inner space is formed; melting the joining member by irradiating the joining member with a laser beam transmitted through the second substrate; and solidifying the melted joining member. The laser beam is applied such that an incident direction at an irradiation position on the joining member does not include components toward the interior of the frame member while the laser beam moves relative to the temporary assembly.

Abstract: A unitized pinion seal assembly has a seal portion and a sleeve portion that are assembled in an interference fit relationship. The unitized pinion seal assembly is assembled to a carrier bearing cage and an axle companion flange with proper spacing between non-sealing components, and without a spacer mounted between the two portions.

Abstract: The device comprises at least one pressing member and an attachment member for attaching it to a wind turbine part, for example, a blade root, which may have a relative movement with regard to a first part, for example, a bearing in a pitch blade mechanism, the first part having a seat into which the joint is to be fitted. Upon relative rotation between the first parts, the pressing member presses the seal into the seat. A method for fitting the seal into the seat is also provided. Operations of maintenance or partial or complete replacement of the seal can be carried out in situ on the wind turbine and also on pitch bearing manufacturing easily and effectively.

Abstract: A seal installation tool assembly and method of using same to install a front seal within a front cover member of an engine. The seal installation tool assembly includes a seal installation sleeve, a threaded fastener, and a washer member. The seal installation sleeve is adapted to receive a front seal and pilots on a drive portion of a crankshaft within the engine. The threaded fastener operates to draw the front seal within the front cover member. Upon contact between the front cover member and the seal installation sleeve, the front seal is properly installed.

Abstract: An end surface 1a of sintered bearing 1 is abutted on a die 10 so that the sintered bearing 1 is mounted thereon, and a tool 40 is abutted on the other end surface 1b of the sintered bearing 1. While the sintered bearing 1 is pressed by the tool 40, high frequency vibration in an axial direction is supplied from a horn 30 to the tool 40 by operating a vibrator 20 so as to give repeated impacts to both end surfaces 1a and 1b of the sintered bearing 1, and pores of the end surfaces 1a and 1b are thereby sealed. The die 10 and the tool 40 have surfaces abutting the sintered bearing 1, and the surfaces have roughness of 0.4 s or less and hardness of HRA 60 or more, and the tool presses the sintered bearing at a pressure of 70 to 700 kPa. The high frequency vibration supplied to the tool 40 has a power of 50 to 3000 W/cm2, and it has a frequency of 10 to 50 kHz.

Abstract: A bearing has an outer ring with an annular side face with an outer ring raceway on an inner peripheral surface of the outer ring and an interface formed on an outer peripheral surface at an axial end portion of the outer ring adjacent the annular side face. A compressible element is disposed at the interface. A seal carrier is deformingly connected to the outer ring with a portion of the seal carrier conforming to the interface with the compressible element disposed therebetween forming a seal between the outer ring and the portion of the seal carrier attached thereto.

Abstract: A seal guard 12 for a wide inner ring bearing assembly 10 comprising an annular member 22 configured for attachment to an external surface 24 of a bearing outer ring 16, and which radially encloses the various seal components 18 disposed within an annular opening between the inner ring 14 and outer ring 16. The annular member 22 includes an angled external surface 22A adapted to deflect external contaminates away from direct impingement upon the seal components 18.

Abstract: A unitized pinion seal assembly has a seal portion and a sleeve portion that are assembled in an interference fit relationship. The unitized pinion seal assembly is assembled to a carrier bearing cage and an axle companion flange with proper spacing between non-sealing components, and without a spacer mounted between the two portions.

Abstract: A device for recirculating oil from the end face of the barrel and the peripheral surface of the roll neck of rolling mill rolls. A sealing race arranged between the bearing elements and the end face of the barrel is mounted on the roll neck. A first conical ring body has a conical outer surface and a cylindrical inner surface that is seated on the outer surface of the sealing race and is sealed from the race, whereby inclination of the conical outer surface towards the end face runs towards the roll axis. A second conical ring body is rigidly mounted in the bearing housing and has a conical inner surface, which conical inner surface is arranged some distance opposite the conical surface of the first conical ring body, such that the two conical surfaces form a hydraulic pump gap that conveys oil away from the end face.

Abstract: A bearing assembly is disclosed having a pair of bearing members movable relative to one another. A space is defined between the bearing members, and a relatively thin coating of a greaseless, self-lubricating material is applied to the surface of at least one of the bearing members. A grease lubricant is disposed in the space defined between the bearing members such that both the grease lubricant and the greaseless material act to substantially lower the friction-generated heat that is encountered during operation.

Abstract: A bearing apparatus includes a rotating member, a fixed member opposing the rotating member and an ink-like resin material. Opposing surfaces of the rotating member and the fixed member form a bearing part and the ink-like resin material is applied to at least one of the opposing surfaces by transfer printing.

Abstract: A universal joint including a spider having a plurality of trunnions. The universal joint also includes a pair of yokes, where each yoke has a pair of arms with an aperture formed therethrough, and each yoke is arranged such that an opposite pair of the trunnions are received into the apertures in the arms. The universal joint additionally includes a plurality of bearing cups. Each bearing cup has at least one recess formed into its outer surface and is received in an associated one of the trunnions and a corresponding aperture in an associated one of the arms. A plurality of retaining members are also included. Each of the retaining members are formed of an epoxy that is disposed in the at least one recess, where each of the retaining members couples an associated one of the bearing cups in its associated arm.

Abstract: A fluid dynamic bearing including a shaft rotating within a sleeve and a thrust plate or the like supported at an end of the shaft rotating in a recess defined with the sleeve. The thrust plate faces a counterplate supported from the sleeve over the recess, and the sleeve and shaft are supported for rotation by fluid in the gap or gaps between the shaft and sleeve, thrust plate and sleeve, and thrust plate and counterplate. To prevent fluid from leaking out of the fluid dynamic bearing into the surrounding atmosphere by seeping between the counterplate and sleeve face it rests on, a seal recess is defined in the sleeve, a crush ring seal is placed in the recess. The counterplate is then pressed into the recess, crushing the crush seal ring and blocking any passage of the fluid from the gap region surrounding the thrust plate through the gap between counterplate and sleeve.

Abstract: An application tool (and a method of use of the tool) is provided for assembling an outboard seal and roller assembly into a hub unit. The tool and method allow for the use of standard seals and standard cage/roller assemblies, thus avoiding the problem associated with the use of special cages or oversized large-diameter seals.

Abstract: A method of assembly a brush seal between two components having confronting adjacent surfaces, such as the stator and rotor of a gas turbine, comprises providing a slot in one of the components which slot opens through the confronting surface of that component to face the other component. A flexible brush seal element having a plurality of metallic bristles is pushed into the slot so that the free ends of the bristles project from said surface of the one component. The element is then held in position in the slot by means of an anchoring strip pushed into the slot so as to bear on a wall thereof and also on the brush seal element, the anchoring strip typically being of a malleable metal.

Abstract: A bearing end cap having a circular mounting surface, a sidewall adjacent to the mounting surface, a vent positioned on the sidewall, and a shroud extending outwardly from the side wall and at least partially encircling the vent.

Abstract: A method of manufacturing a leaf seal for use between rotating components comprises forming corrugations within a metallic strip and feeding the corrugated strip into a seal guide. The corrugated strip is then pressed into the guide by an angled ram such that the corrugations lie at an acute angle to the perpendicular axis. The strip is then secured in a seal carrier, the free ends of the corrugations thus forming the angled sealing leaves of a leaf seal.

Abstract: A rolling bearing device comprises an outer ring 105 provided with an internal raceway 106 formed on its bore, an inner ring 101 provided with an external raceway 102 formed on its cylindrical exterior surface, at least one row of rolling bodies 111 arranged between the two raceways 102, 106 and at least one sealing member 121 secured to one of the rings. The sealing member 121 comprises an annular metal reinforcement 123. The device comprises a part 126 for connecting between the reinforcement 123 and the ring which supports it, the connecting part 126 being formed by a filler metal which, after melting and cooling, provides attachment, sealing and molds to the shapes of the said reinforcement and the said ring.

Abstract: A sealing arrangement including a sealing ring with a support ring extending substantially in a radial direction. The support ring is joined in the radial direction to a first sealing element that lies in contact with and is nonrotatable with respect to a first machine element to form a static seal. The support ring is also joined in the radial direction to a second sealing element that is placed against a second machine element rotatably with respect to the second machine element to create a dynamic seal. The first and second sealing elements are each made of an elastomeric material, and the sealing ring has, in order to sense rotational movements of the first machine element about its axis, at least one auxiliary device that can move past a rotational speed sensor. The auxiliary device can be a multipole ring made of a pasty, hardenable, and magnetizable material that is arranged as a intermediate layer of film-like thinness on the side of the support ring facing the rotational speed sensor.

Abstract: A technique is provided for sealing a bearing cavity in a rotating machine such as an electric motor. The bearing cavity is defined by annular elements on either side of an antifriction bearing set. Seals are provided on the sides of the bearing cavity and are secured to a support structure, such as the motor housing, and include elements which ride against the rotating shaft during operation. The seals exert a sealing force against the rotating element which results at least partially from internal pressure within the bearing cavity provided by a pressurized lubricant stream. The lubricant stream is provided in the form of an airborne oil mist.