Class / Patent application number | Description | Number of patent applications / Date published |
384492000 | Ball or race composition or material | 37 |
20080212911 | Antifriction Bearing Rage, Particularly For Highly Stressed Antifriction Bearings in Aircraft Power Units and Methods For the Production Thereof - The invention relates to an antifriction bearing race, particularly for highly stressed antifriction bearings in aircraft power units, which are comprised of a fixed joining of two layers made of different metallic materials, the area of the raceway for the roller bodies being made of a steel with a very high degree of hardness and resistance to wear, and the core area of the antifriction bearing race being made of a high-strength steel. According to the invention, a powder-metallurgical high-speed steel having a high content of carbide-forming alloying elements and a high carbon content is provided as the material for the raceway of the roller bodies, whereas the material for the core area of the antifriction bearing race is made of a hot-work steel with, in comparison to the raceway material, a lower content of carbide-forming alloying elements and with a low carbon content, both materials being joined to one another with material fit by diffusion welding. | 09-04-2008 |
20080240638 | Rolling bearing - In the ball bearing, in a space surrounded by an inner ring, an outer ring and sealing portions, adsorbing material coatings formed on outer periphery surfaces of the inner ring, adsorbing material coatings formed on inner periphery surfaces of the outer ring, and adsorbing material coatings formed on inside surfaces of the sealing portions and adsorbing material coatings formed on a non-holding surface of the cage are disposed. The adsorption material coatings may adsorb the wear powder generated from the inner ring, the outer ring, the ball, the cage and the sealing portions and the outgas due to vaporization of the lubricant oil. | 10-02-2008 |
20080260315 | Rolling Mechanism for Supporting Very Large Maximum Loads - The inventive rolling mechanism brings into play two pieces ( | 10-23-2008 |
20080267548 | BEARING ARRANGEMENT FOR THE SHAFT OF A TURBO-CHARGER - A bearing ( | 10-30-2008 |
20090010584 | BEARING ASSEMBLY - The present invention is a bearing assembly for a support frame and shaft with a shoulder. The bearing assembly includes balls. There is an outer race frame with a race to receive balls. The outer race frame is adapted to be mounted to the support frame. There is an inner race frame with a race to receive the balls. The inner race frame is adapted to be mounted to a shaft with a shoulder. The inner race frame and the outer race frame connect together to encase the balls. The inner race frame and the outer race frame together form an outside diameter measurement value and inside diameter measurement value of the bearing assembly. The inner race includes a shoulder surface contact area to be in contact with the shoulder which is at least ninety-five percent of thickness area of the bearing assembly. | 01-08-2009 |
20090010585 | ROLLING BEARING AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a rolling bearing excellent in insulating property and resistance to corrosion and chemicals such as acids, alkalis, and the like by forming a dense ceramic layer by using a method instead of a thermally spraying method. The rolling bearing includes an inner ring | 01-08-2009 |
20090046967 | BEARINGS, RACES AND COMPONENTS THEREOF HAVING DIAMOND AND OTHER SUPERHARD SURFACES - Diamond bearings and bearing components are disclosed. Some embodiments of the bearings and bearing components include polycrystalline diamond compacts sintered under high pressure and high temperature to create a diamond table chemically and mechanically bonded to a substrate, the diamond table presenting a durable and thermally stable load bearing and articulation surface. | 02-19-2009 |
20090148090 | Stamped inner or outer races - An inner race or and outer race, including: a first annular portion with a first radial surface at a first end of the race; and a second annular portion formed from a same piece of material as the first portion, at least partially in contact with the first portion, the second portion having a second radial surface at the first end of the race, the second radial surface separate from the first radial surface at the first end of the race. In one embodiment, the first and second radial surfaces are substantially orthogonal to a longitudinal axis for the race. The inner race includes a third annular portion disposed at a second end of the race, opposite the first end, and formed from the same piece of material. The first and second annular portions extend from the third annular portion to the first end of the race. | 06-11-2009 |
20090180725 | X-Ray Tube Rotating Anode Assembly Bearing - A thermally stable tribological coating is applied to the outer surface of a moveable bearing outer ring in a bearing assembly for an x-ray tube rotating anode and/or the surface of a housing bore of the X-ray tube rotating anode which receives the bearing assembly. If the tribological coating is applied to the outer surface of the bearing outer ring, it is made of a material that is metallurgically incompatible with the material from which the housing containing the bearing is made. The coating includes one or more of the following: Cr, W, Mo, or Nb, or nitrides, carbides, oxides, or sulfides of Cr, W, Mo, or Nb. | 07-16-2009 |
20090238508 | SLIDE MEMBER AND BEARING UTILIZING THE SAME - A sliding member includes a silicon nitride sintered compact containing a rare earth element of 7 to 18 mass % in terms of oxide and at least one element M selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W of 0.1 to 3 mass % in terms of oxide, and having a total content of impurity positive ion elements of 0.3 mass % or less and a thermal conductivity of 60 W/m·K or higher. The silicon nitride sintered compact includes silicon nitride crystal grains and a grain boundary phase, and has a ratio of crystalline compound phases in the grain boundary phase of 20% or more in area ratio, and an average grain size of the crystalline compound phases of 0.5 μm or less. The sliding member is used, for example, as a bearing ball | 09-24-2009 |
20090245706 | ROLLING BEARING - An outer ring and an inner ring of a rolling bearing are constituted of steel containing 0.77 to 0.85% of carbon, 0.01 to 0.25% of silicon, 0.01 to 0.35% of manganese, 0.01 to 0.15% of nickel, 3.75 to 4.25% of chromium, 4 to 4.5% of molybdenum and 0.9 to 1.1% of vanadium with the rest consisting of iron and impurities, a nitrogen-enriched layer having a nitrogen concentration of at least 0.05 mass % is formed on a region including a rolling surface, and the total of a carbon concentration and the nitrogen concentration in the nitrogen-enriched layer is at least 0.82 mass % and not more than 1.9 mass %. A DLC coating layer is arranged on a region including an outer ring contact surface. | 10-01-2009 |
20090304318 | Electrolytic Erosion Preventing Insulated Rolling Bearing, Manufacturing Method Thereof, and Bearing Device - In order to ensure high levels of insulation performance, and low cost, and have an excellent external appearance, as a ceramic constituting an insulating coating | 12-10-2009 |
20100021097 | Rolling Device - A rolling device in which rust development or damage on a raceway surface or rolling surface is hard to occur even if water and the like intrude is provided. A self-aligning roller bearing comprises an inner ring | 01-28-2010 |
20100189385 | ROLLING CONTACT MEMBER, ROLLING BEARING, AND METHOD OF PRODUCING ROLLING CONTACT MEMBER - An outer ring, an inner ring and a ball that are a rolling contact member formed of sintered β sialon inexpensive and capable of reliably ensuring sufficient durability, is constituted of a sintered body containing β sialon as a main component and having a remainder formed of an impurity, and the outer ring, the inner ring and the ball have raceway/rolling contact surfaces, i.e., an outer ring raceway surface, an inner ring raceway surface and a ball rolling contact surface included in a portion having an outer ring high density layer, an inner ring high density layer and a ball high density layer higher in density than an inner portion. | 07-29-2010 |
20100232735 | BEARING FOR ALTERNATOR AND BEARING FOR PULLEY - A bearing for alternators and a bearing for pulleys for reducing hydrogen embrittlement or cracking is used when the bearing is in an environment having a severe condition, such as, when hydrogen is generated from grease or the like. The bearing includes a rolling element, an inner ring and an outer ring, and at least one of the rolling element, where the inner and outer rings have a nitrogen enriched layer containing austenite crystal grains having a grain size number exceeding 10. | 09-16-2010 |
20110299804 | ROLLER BEARING FOR UNDERWATER APPLICATIONS - A roller bearing for underwater applications, in particular for underwater turbines, which has an outer ring and an inner ring arranged in a bearing housing made from a stainless material. Several roller bodies are held in a cage and are arranged between the bearing rings on corresponding roller tracks made from a corrosion-resistant material. In order to save weight for a roller bearing, the diameter of which is, in particular between 0.2 and 10 m, at least one of the bearing rings is designed as bearing ring for a thin ring bearing. | 12-08-2011 |
20120014635 | MECHANICAL COMPONENT AND ROLLING BEARING - An outer ring, an inner ring and a ball serving as mechanical components configuring a deep groove ball bearing are formed of steel containing at least 0.77 mass % and not more than 0.85 mass % of carbon, at least 0.01 mass % and not more than 0.25 mass % of silicon, at least 0.01 mass % and not more than 0.35 mass % of manganese, at least 0.01 mass % and not more than 0.15 mass % of nickel, at least 3.75 mass % and not more than 4.25 mass % of chromium, at least 4 mass % and not more than 4.5 mass % of molybdenum and at least 0.9 mass % and not more than 1.1 mass % of vanadium with a remainder consisting of iron and impurity, and have raceway/rolling contact surfaces, the surface being included in a region having a nitrogen enriched layer having a nitrogen concentration of at least 0.05 mass %, the nitrogen enriched layer having a carbon concentration and the nitrogen concentration, in total, of at least 0.82 mass % and not more than 1.9 mass %. | 01-19-2012 |
20120134615 | HIGH-TEMPERATURE AXLE BEARING MADE OF NI3(SI, TI)-BASED INTERMETALLIC COMPOUND ALLOY AND METHOD FOR PRODUCING THE SAME - The present invention provides an axle bearing having excellent life under high temperature. | 05-31-2012 |
20120219247 | BEARING UNIT OF A SHAFT OF A PRESSURE GENERATING DEVICE - A bearing unit rotatably supports a shaft of a pressure generating device, such a boost pressure generating device of an internal combustion engine. The bearing unit includes at least a first rolling-element bearing and a second rolling-element bearing, each rolling-element bearing having an inner ring and an outer ring. An annular space is defined between the respective inner and outer rings and rolling elements are disposed in the annular space. At least one volume element is disposed in the annular space and at least partially fills the annular space in an axial area. | 08-30-2012 |
20130016938 | ROLLING BEARINGAANM Okada; TakahiroAACI IwataAACO JPAAGP Okada; Takahiro Iwata JPAANM Mineno; KatsunoriAACI IwataAACO JPAAGP Mineno; Katsunori Iwata JP - A rolling bearing is disclosed of which the lifespan is increased by reducing brittle flaking and impression-induced flaking on the raceways of inner and outer races and the rolling elements. Steel containing 1.80-1.89% by weight of chrome (brittle flaking-resistant steel) is subjected to carbonitriding and then to hardening and tempering. The chrome reduces generation of white layers which are aggregates of carbon, thus reducing brittle flaking on e.g. the raceways ( | 01-17-2013 |
20140363115 | ROLLING BEARING AND ITS MANUFACTURING METHOD - On the contact surface of the rolling bearing part made of alloy steel containing appropriate amounts of Cr and Mo, the C+N content is 0.9 to 1.4 mass % and the area ratio of carbide is 10% or less. At the depth of 1% of the diameter of the rolling element from the contact surface, the hardness is 720 to 832 in Hv, the amount of retained austenite is 20 to 45 volume %, and the compressive residual stress is 50 to 300 Mpa. At the depth of 1 to 3% of the diameter of the rolling element from the contact surface, the average value of the prior austenite grain size is 20 μm or less and the maximum value of the prior austenite grain size is 3 times or less the average value, and the hardness of the core portion is 400 to 550 in Hv. | 12-11-2014 |
20150023623 | BEARING COMPONENT - A bearing component formed from a steel composition and providing carbon, silicon, manganese, chromium, cobalt, vanadium, and at least one of the following elements sulphur, phosphorous, molybdenum, aluminium, arsenic, tin, antimony, and the balance iron, together with impurities. | 01-22-2015 |
20150110434 | Pinion Bearing Arrangement - The invention relates to a pinion bearing arrangement of a gearbox for a vehicle or aircraft, providing at least one roller bearing. At least one of the roller bearings is a ball bearing, having an inner ring and an outer ring, wherein both rings have raceways for balls being located between the rings. To ensure a sufficient lifetime of the roller bearings the invention includes that at least one of the rings is made from a ball bearing steel produced by a powder metallurgical process using a powder metallurgy component including 0.5 to 2.0 weight-% C, a maximum of 0.035 weight-% S, 3.0 to 5.0 weight-% Cr, 1.0 to 4.0 weight-% V, 1.0 to 12.0 weight-% W and 2.0 to 12.0 weight-% Mo, wherein at least one raceway has a radius (r | 04-23-2015 |
20150308500 | NON-RHYTHMICALLY SPACED ROLLING ELEMENTS FOR REDUCTION IN BEARING NON-REPEATABLE RUN-OUT - A rolling element bearing includes an outer member having an outer member interior surface and an outer member exterior surface. The bearing includes an inner member having an inner member interior surface and an inner member exterior surface and a plurality of rolling elements disposed between the inner member and the outer member. The bearing includes a plurality of random-length slug separators. The separators are of a first length, a second length or a third length, which are not equal. One of the plurality of random-length slug separators is disposed adjacent to at least one of the plurality of rolling elements. The plurality of rolling elements are non-rhythmically spaced apart. | 10-29-2015 |
20150377293 | BEARING COMPONENT AND ROLLING BEARING - A bearing component (an outer ring, an inner ring, and a ball) is made of bearing steel, and has a surface layer portion that is nitrided and includes an outer ring raceway surface and an inner ring raceway surface or a rolling surface. A nitrogen concentration in the surface layer portion is 0.4 mass % or higher. An area ratio of a precipitate in an inner portion that is not nitrided is 11% or higher. | 12-31-2015 |
20150380124 | Bearing Ring, Electrically Insulating Coating and Method for Applying an Electrically Insulating Coating - The invention discloses a bearing ring. The bearing ring, with a body, has an electrically insulating coating made up of a ceramic layer with pores and a plastic for filling the pores and coating the ceramic layer. According to the invention, the pores have a proportion between 10 and 50% in the ceramic layer. The invention furthermore defines an electrically insulating coating, made up of a ceramic layer with pores and a plastic for filling the pores and coating the ceramic layer. The invention further still discloses a method for applying an electrically insulating coating to a body of a bearing ring. | 12-31-2015 |
20160003300 | BEARING PART AND ROLLING BEARING - Each of an outer race, an inner race and a ball as a bearing part is a bearing part made of JIS standard SUJ2 and having a carbonitrided layer formed in a surface thereof, wherein, after heat treatment at a heating temperature of 500° C. for a retention time of one hour is performed, a Vickers hardness at a position with a depth of 0.02×T+0.175 (mm) from the surface is higher than a Vickers hardness at a core portion, which is a region where the carbonitrided layer is not formed in a thickness direction of the bearing part, by not less than 80 HV, where T represents the time of carbonitriding treatment for forming the carbonitrided layer. | 01-07-2016 |
20160010691 | PRESSURE NITRIDED STAINLESS STEEL HYBRID BEARING FOR A REFRIGERANT LUBRICATED COMPRESSOR | 01-14-2016 |
20160025068 | ARRANGEMENT FOR MOUNTING COUNTER-ROTATABLE PARTS OF AN ENERGY SYSTEM - The invention relates to a rolling bearing arrangement ( | 01-28-2016 |
20160032976 | COMPONENT CONFIGURED FROM MARTENSITIC STAINLESS STEEL - A rolling element bearing includes a plurality of bearing components, which include one or more rolling elements, an inner ring and an outer ring. A first of the bearing components includes martensitic stainless steel configured with a core and a hardened case. The martensitic stainless steel of the core includes approximately 8% by weight or more chromium. The martensitic stainless steel of the hardened case has a grain size that is substantially equal to or finer than ASTM grain size #7. The martensitic stainless steel of the hardened case includes approximately 6% by weight or more chromium, and carbon. Molecules that include the carbon are substantially uniformly dispersed within the hardened case. | 02-04-2016 |
20160061260 | ROLLING BEARING - A rolling bearing comprising an outer ring and an inner ring, each of the outer ring and the inner ring having a raceway for rolling elements placed therebetween in contact with the raceways. At least one of the outer ring and the inner ring comprises an envelope having an axial portion and, connected to the edges of the axial portion, two radial portions, and two half-raceways arranged in the envelope to form the raceway of the associated ring. The half-raceways are made of a plastic material. | 03-03-2016 |
20160108491 | ROLLING BEARING - A rolling bearing in which at least one of the bearing rings is obtained by applying a induction heat treatment to a spheroidizing annealed steel material having a DI value of 1.0 or more to form a hardened layer having a hardness of 550 HV or more on at least a raceway surface and a fitting surface. In the induction heat-treated bearing ring, (A) an average retained austenite amount is 12 vol % or less, (B) the raceway surface has a retained austenite amount of 12 vol % or more and a residual compressive stress of −100 MPa or less, and (C) a difference between a hardness of the raceway surface and a minimum hardness of a region having a hardness of less than 550 HV is 150 HV or more. | 04-21-2016 |
20160108961 | BEARING RING AND ROLLING BEARING - A bearing ring formed of quenched and tempered high carbon chromium bearing steel, including an inner layer portion formed of tempered martensite or sorbite and having a Vickers hardness of more than 490 HV and 710 HV or less, and a surface layer portion formed to enclose an entire periphery of the inner layer portion, formed of tempered martensite, and having a higher hardness than the inner layer portion. | 04-21-2016 |
20160123385 | ROLLING BEARING - A rolling bearing comprising an inner ring, an outer ring and rolling elements arranged between the inner and the outer ring. At least one of the inner and outer rings includes a housing, two half-raceways mounted in the housing, each of the half-raceways comprising a contact surface adapted to make a contact with the rolling elements, and at least one pre-stressing element arranged between the housing and one of the half-raceways. The half-raceways are formed by frustoconical rings and the contact surfaces of the half-raceways are frustoconical. | 05-05-2016 |
20160153496 | METHOD FOR HEAT-TREATING A RING-SHAPED MEMBER, METHOD FOR PRODUCING A RING-SHAPED MEMBER, RING-SHAPED MEMBER, BEARING RING, ROLLING BEARING, AND METHOD FOR PRODUCING A BEARING RING | 06-02-2016 |
20160178009 | BEARING PART, ROLLING BEARING, AND METHOD OF MANUFACTURING BEARING PART | 06-23-2016 |
20160195135 | FRICTION-ENHANCING LACQUER AND BEARING COMPONENT COATED THEREWITH | 07-07-2016 |