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| Number | Title | Issue Date |
| 8057101 | Oil impregnated sintered bearing and manufacturing method thereof There is provided an oil-impregnated sintered bearing which enable to prevent oil leakage from an outer peripheral surface of an bearing body. The oil-impregnated sintered bearing includes a bearing body which is made of a porous sintered alloy containing vacancies ... | 11/15/2011 |
| 7922393 | Porous plain bearing with continuous variation of the borehole compression The invention pertains to a plain porous bearing for motors and transmissions with a circular bearing bore that displays, distributed alternatingly across the bearing bore, highly compressed at least approximately closed-pore areas and slightly compressed, open-pore... | 04/12/2011 |
| 7871200 | Aerostatic bearing spindle system using unidirectional porous metal Provided is an aerostatic bearing spindle system using a unidirectional porous metal. The aerostatic bearing spindle system using a unidirectional porous metal may be used to serve as bearings in a region is in contact with the unidirectional porous metals when the ... | 01/18/2011 |
| 7703983 | Sliding material and sliding bearing A sliding material including a resinous porous article having an interconnected hole porosity of not less than 30% and a lubricating oil which impregnates the resinous porous article is disclosed. The resinous porous article has an interconnected hole formed by mold... | 04/27/2010 |
| 7670055 | Sliding bearing A cam follower includes a shaft member which is cantilevered at one end and a slide bearing fitted onto the outer periphery of the other end of the shaft member. The slide bearing is composed of a cylindrical matrix made of an Fe-based sintered metal material having... | 03/02/2010 |
| 7435002 | Bearing unit A bearing unit comprises a cylindrical oil-impregnated bearing, in which a bearing bore to support a turning shaft is formed so as to enable the turning shaft to turn; a bearing holder, in which the oil-impregnated bearing is fixed by an inner bore; a first groove b... | 10/14/2008 |
| 7429132 | Hydrostatic air bearing with a porous metal ring A hydrostatic air bearing in which a journal rotates within a cavity formed within a bearing race, and a sleeve that rotates with the journal within the cavity of the bearing race, where the sleeve is formed of a porous metallic material that allows for a bearing fl... | 09/30/2008 |
| 7387444 | Oil-impregnated sintered bearing Disclosed is an oil-impregnated sintered bearing in which local relative sliding between the oil-impregnated sintered bearing and the shaft is avoided, thereby mitigating stress concentration on the bearing surface of the oil-impregnated sintered bearing. An oil-imp... | 06/17/2008 |
| 7380989 | Fluid dynamic pressure bearing and recording disk drive device comprising the same In a radial minute gap between a substantially columnar shaft and an inner peripheral face of a substantially cylindrical sleeve, oil is retained and a radial dynamic pressure bearing is formed. A plurality of recessed portions are arranged in a circumferential dire... | 06/03/2008 |
| 7361203 | Sliding component and method for manufacturing the same A bearing is manufactured by filling iron-based material powder and copper-based material powder in a filling portion of a mold, compacting those material powder so as to form a green compact, and then sintering the green compact. The copper-based material powder co... | 04/22/2008 |
| 7264398 | Truck pivot joint bearing and method of lubricating 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 th... | 09/04/2007 |
| 7251891 | Production method for sintered bearing member, fluid dynamic pressure bearing device, and spindle motor A production method for sintered bearing member comprises: compacting a metal powder into a green compact, sintering the green compact into a sintered compact; impregnating a resin solvent into the sintered compact, and removing the resin solvent adhering to a surfa... | 08/07/2007 |
| 7249890 | Friction bearing composite material with a metal base layer A friction bearing composite material comprises a metal base layer, a porous support layer applied thereto, and a low friction layer made from PTFE forming a bearing surface for a bearing partner. The low friction material forming the sliding surface also fills the ... | 07/31/2007 |
| 7211219 | Oil-impregnant sintered bearing and manufacturing method thereof, and motor The present invention is for providing an oil-impregnant sintered bearing, which can reliably preserve an oil film on a sliding face, and a method for manufacturing the oil-impregnant sintered bearing. An oil-impregnant sintered bearing is made by providing an inter... | 05/01/2007 |
| 7207722 | Combined bearing A combined bearing includes a main body (10) and a mating member (30). The main body is generally cylindrical, with an axial hole (16) and a cutout (18) defined therein. The cutout is generally semi-cylindrical and spans from an outer sur... | 04/24/2007 |
| 7186028 | Hydrodynamic bearing device A hydrodynamic bearing device capable of inhibiting leakage of a working fluid to an outside of a bearing and preventing reduction in radial bearing rigidity, and capable of keeping a gap between a thrust bearing and a radial bearing favorable and rotating stably. T... | 03/06/2007 |
| 7153337 | Porous metal structure body and method for manufacturing the same The object of the invention is to provide a porous metal structure body suitable for reinforcing a light metal alloy member such as an aluminum alloy member. A mixed powder containing a metallic powder is filled in a mold, and is molded into a shape having a single ... | 12/26/2006 |
| 7147376 | Dynamic bearing device The dynamic bearing device of the invention comprises a housing, a bearing sleeve provided inside the housing, a rotating member rotating relative to the bearing sleeve, and a dynamic bearing portion supporting the rotating member in a non-contact manner by dynamic ... | 12/12/2006 |
| 7144932 | Low-friction, high-dispersion synthetic resin composition containing fine particles of RB ceramic or CRB ceramic and a method for its preparation A synthetic resin composition includes at least one synthetic resin and RBC or CRBC particles dispersed in the resin. A method for preparing a synthetic resin composition includes mixing RBC or CRBC particles with a synthetic resin at a temperature near the melting ... | 12/05/2006 |
| 7141534 | Metal forming device including bearing with sintered anti-friction bearing surface A composite anti-friction bearing structure comprising a bearing substrate and an anti-friction layer. The bearing structure can be in the form of bushings, wear plates, wear rings, etc. The anti-friction layer includes particles of an alloy which combines lubricity... | 11/28/2006 |
| 7140778 | Synthetic resin composites and bearings formed therefrom and method A resin composite for use in the manufacture of slide bearings is formed of a resin and fine particles of RBC or CRBC dispersed in the resin. The resin composite can be molded into slide bearings. ... | 11/28/2006 |
| 7128528 | Bearings for COrefrigerant compressor use, compressor using the same, and applications of the same The object of the present invention is to provide: high-reliability and long-life CO2 refrigerant compressor-use bearings that uses bearing materials high in wear resistance and in baking resistance, and; such a compressor, air conditioner, refrigerator, ... | 10/31/2006 |
| 7122929 | Spindle motor for disk driving device If the motor housing 5 is manufactured with a resin, the housing 5 becomes possible to be manufactured by injection molding, so that the housing 5 can be intended to lower the manufacturing cost by a mass production. Further, the counter measure... | 10/17/2006 |
| 7109620 | Motor and display unit The present invention can make the motor life of a motor be longer under the high temperature environment. The motor has a sleeve which is formed by a porous material made of a metal powder and the sleeve is held in a cylindrical sleeve holding part. An annular conc... | 09/19/2006 |
| 7101087 | Sliding member A sliding member includes a substrate, a porous layer provided on the surface of the substrate and a sliding layer with which the porous layer is impregnated and coated. The sliding layer contains polybenzimidazole, 1–70 vol % of a solid lubricant and 0.1–10 vol... | 09/05/2006 |
| 7078107 | Contact material, composite sintered component and method of producing same A contact material which provides improved wear resistance as well as reduced adhesion utilizing the features of an intermetallic compound having an ordered phase, with the intention of (i) improving the seizure resistance and/or wear resistance of an implement bear... | 07/18/2006 |
| 7073947 | Bearing structure of a motor An oil retaining bearing that supports a shaft of a motor is engaged in a pocket of a casing for the motor. A bearing holder comprises a boss and an outer brim welded on the casing which surrounds the pocket, thereby preventing the oil retaining bearing from coming ... | 07/11/2006 |
| 7014367 | Oil-impregnated sintered sliding bearing An oil-impregnated sintered sliding bearing formed of a porous iron-based sintered alloy with quenched structure and receiving a high surface pressure capable of reducing the number of finishing steps by cutting and grinding and providing a bearing performance equiv... | 03/21/2006 |
| 7008196 | Electrically motorized pump having a submersible sleeve bearing The electrically motorized pump has a low energy loss because it uses of the shaft and the sleeve made from synthetic resin composition obtained by uniformly dispersing fine powder of RBC or CRBC in a resin. The typical process for the production of a synthetic resi... | 03/07/2006 |
| 7008109 | Dynamic pressure bearing device A dynamic pressure bearing device includes a dynamic pressure face of a shaft member, a dynamic pressure face of a bearing member, lubricating fluid filled in a bearing space of a dynamic pressure bearing portion including a gap between the dynamic pressure faces, a... | 03/07/2006 |
| 6951423 | Sintered bearing and production method therefor A sintered bearing is produced by a production method comprising: compacting a metallic raw material powder into a bearing green compact; sintering the green compact into a sintered compact; forming a resin coating 20 over the entire surface of the sintered c... | 10/04/2005 |
| 6942388 | Bearing structure A bearing structure includes a cylindrical first member (10), and a second member (20) received in the first member. The first member is made of ceramic sintered material. The first member defines a first axle hole (11), and the first axle hole ... | 09/13/2005 |
| 6935787 | Oil-circulating structure for fan An oil-circulating structure for fan has an oily bearing with a central axis hole for pivoting a fan shaft. An oil-collecting recess trench is formed on the inside wall of the axis hole. The oil-collecting recess trench has a double inner screw shape oil-guiding dit... | 08/30/2005 |
| 6902324 | Crankshaft bearing shell A crankshaft bearing shell in an internal combustion engine of a vehicle is made from a steel/aluminum composite material and is composed of a steel supporting layer and an aluminum plated sliding layer containing parts of tin and copper in the aluminum sliding laye... | 06/07/2005 |
| 6872002 | Bearing material for porous hydrostatic gas bearing and porous hydrostatic gas bearing using the same A bearing material includes: a backing metal made of stainless steel; and a porous sintered metal layer integrated with at least one surface of the backing metal by means of a bonding layer, particles of an inorganic substance being contained in a dispersed manner a... | 03/29/2005 |
| 6867519 | Electric motor An electric motor has a stator and a rotor. The rotor is supported by a sintered bearing associated with the stator. The bearing 10 co-operates with an abutment 18 on the rotor to form a thrust interface. The abutment has a planar surface 19 wit... | 03/15/2005 |
| 6854890 | Bearing assembly A bearing assembly includes a generally cylindrical main unit (10) made of ceramic material, and two blocks (30) made of sintered metallic material housed in the main unit. The main unit includes a cylindrical sleeve (12), and two opposite protr... | 02/15/2005 |
| 6851859 | Bearing unit, production method therefor and spindle motor A bearing unit comprises a bearing 60 formed of a sintered metal in which a magnetized magnetic powder is dispersed in its matrix and at least pores exposed on a bearing surface thereof are sealed by impregnation with a resin; a non-magnetic housing 90 | 02/08/2005 |
| 6846109 | Sintered bearing and production method therefor A production method for a sintered bearing, comprises compacting a raw metallic material powder into a bearing green compact; sintering the green compact into a sintered compact; and forming a resin coating over the entire surface of the sintered compact by electrod... | 01/25/2005 |
| 6836041 | Bearing device for a motor having a bearing set including multiple bearings of different materials A bearing device (10) for a motor (12) includes a bearing set (20) and a shaft (14). The bearing set includes first and second bearings (21, 26), which are made of sintered metallic material and ceramic material respectively. An an... | 12/28/2004 |
