Bearing Surface Insert Patents (Class 384/282)
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Patent number: 11560923Abstract: A bushing for aircraft landing gear includes a cylindrical wall having an interior surface defining a bore extending between a first and second axial end thereof and a cylindrical recess extending into the interior surface. The bushing includes a cylindrical self-lubricating liner which is substantially flush with the interior surface is disposed in the recess. The cylindrical wall includes a flange that has an annular recess that receives an annular self-lubricating liner that has a planar axial bearing surface. The planar axial bearing surface is coplanar with an inboard axial surface of the flange. The bushing has an electrically conductive path that conducts electrical current and that extends around the cylindrical self-lubricating liner and the annular self-lubricating liner and through the cylindrical wall and the flange.Type: GrantFiled: June 4, 2020Date of Patent: January 24, 2023Assignee: Schaublin SAInventors: David Coombe, Maxime Merg
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Patent number: 11555505Abstract: An electrical submersible pumping system includes thrust bearings and radial bearings fabricated from a micro-grained polycrystalline diamond compact (“USPCD”) material that is ultra-strong; and where the USPCD is produced using a catalyst free process. In examples, all components of the bearings are formed from the ultra-strong USPCD material. Pads are in the bearings that have a contact surface, and the pads selectively tilt about a tilt member in response to variations in an opposing contact surface. The tilt members are attached to or otherwise associated with the pads, and are in contact with a resilient member that improves tilting response of the pads. The resilient members are encased in jackets that cover surfaces of the resilient members not in contact with the tilt members. The jackets are set in channels formed in structure of the bearings.Type: GrantFiled: June 4, 2020Date of Patent: January 17, 2023Assignee: SAUDI ARABIAN OIL COMPANYInventors: Jinjiang Xiao, Guodong Zhan
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Patent number: 11492089Abstract: A device for fastening a steering actuator cylinder to an outboard marine motor includes a fastening rod insertable inside the outboard marine motor and having ends each inserted inside a corresponding housing seat obtained in a terminal element, so that the fastening rod has a relative rotation with respect to the terminal elements, which are further fastened to the steering cylinder. The outboard motor is integral with the fastening rod, so that the outboard motor can oscillate around the longitudinal axis of the fastening rod. At least one insulating element is interposed between each end of the fastening rod and the corresponding housing seat, the insulating element is configured to at least partially surround the surface of each end.Type: GrantFiled: November 26, 2020Date of Patent: November 8, 2022Inventors: Marcella Gai, Enrico Pagani
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Patent number: 11428262Abstract: The present disclosure provides a bearing design that accommodates misalignment of a rotatable shaft in the bearing and is well suited to usage in a particulate-laden fluid. The bearing can be shaped with a curved surface along a longitudinal axis of the bearing, such as in a curved barrel shape or a ball shape, to provide a point contact instead of a line contact as is the case with conventional plain bearings. The point contact allows the bearing to adjust with a misalignment between ends of the shaft or between the external supports and facilitates the assembly and disassembly of the rotating shaft. Because the bearing compensates for misalignment, the bearing surfaces can have closer tolerances for a smaller gap between the bearing surfaces, which can result in improved performance.Type: GrantFiled: March 12, 2021Date of Patent: August 30, 2022Assignee: MS Directional, LLCInventors: Nobuyoshi Niina, Libo Yang, Peter Nicholas Wells
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Patent number: 11371516Abstract: A motor for dual fans includes: a body on which a stator is installed; a shaft which is coupled to a rotor located to be opposite to the stator to rotate together and is extended to an upper part and a lower part of the body; a first fan which is coupled to an upper part of the shaft; and a second fan which is coupled to a lower part of the shaft, characterized in that a first unidirectional bearing is coupled to the first fan, and thereby an inner race of the first unidirectional bearing is coupled to an upper part of the shaft to rotate, and a second unidirectional bearing is coupled to the second fan, and thereby an inner race of the second unidirectional bearing is coupled to the lower part of the shaft to rotate.Type: GrantFiled: January 16, 2019Date of Patent: June 28, 2022Assignee: NEW MOTECH CO., LTD.Inventors: Jeong Cheol Jang, Ji Min Lee
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Patent number: 10156254Abstract: The present disclosure relates to the field of mechanical engineering. The bearing of the present disclosure comprises few components and can be assembled easily on site. The bearing includes a housing and a plurality of sectional elements. The housing is disposed on a base and has a hollow profile. The plurality of sectional elements is disposed within the housing and is configured to hold the component therewithin. The plurality of sectional elements facilitates rotation of the component. Each of the plurality of sectional elements is defined by an operative outer surface and an operative inner surface. The operative outer surface has a shape complementary to an operative inner surface of the housing. The operative inner surface of each of the plurality of sectional elements has a shape complementary to the component to be held within the bearing.Type: GrantFiled: August 23, 2016Date of Patent: December 18, 2018Assignee: MAHINDRA SUSTEN PVT LTD.Inventors: Sandeep Jayawant Bhosale, Apurav Padam Jain, Basant Kumar Jain
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Patent number: 9433945Abstract: A gyratory crusher bearing arranged for carrying a crushing head of a gyratory crusher having an inner crushing shell supported by the crushing head, and an outer crushing shell supported on a crusher frame. The gyratory crusher bearing includes a lubricant supply channel and a lubricant drainage channel. At least one of the lubricant supply channel and the lubricant drainage channel is arranged for housing a combined mounting and lubricant passage bolt holding the gyratory crusher bearing to a bearing support arranged on the crusher frame of the gyratory crusher.Type: GrantFiled: March 31, 2014Date of Patent: September 6, 2016Assignee: SANDVIK INTELLECTUAL PROPERTY ABInventors: Predrag Zivanovic, Johan Gunnarsson, Konstantin Belotserkovskiy
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Patent number: 9062708Abstract: A thrust sliding bearing 1 includes a synthetic resin-made upper casing 100, a synthetic resin-made lower casing 200, and a synthetic resin-made thrust sliding bearing piece 300 interposed between the upper and lower casings 100 and 200, and the thrust sliding bearing piece 300 has inner recessed portions 306 and outer recessed portions 307 which are formed on its upper surface 304 in two rows including an inner row and an outer row and a lubricating oil filled in each of these inner recessed portions 306 and outer recessed portions 307, the inner recessed portions 306 and the outer recessed portions 307 being arranged with a phase difference of an angle ?1=6°.Type: GrantFiled: May 30, 2012Date of Patent: June 23, 2015Assignee: OILES CORPORATIONInventors: Kouichi Morishige, Katsunori Saito, Tadashi Watai
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Publication number: 20150130313Abstract: A system for suspending a rotating body consisting of a combination of magnetic and engineered materials. The suspension system allows for some axial motion to account for varying system loads.Type: ApplicationFiled: January 26, 2015Publication date: May 14, 2015Inventor: Peter S. Aronstam
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Patent number: 8998495Abstract: It is an object of the present invention to provide a sliding bearing which has a simple construction and thus can be produced easily and at a low cost and yet eliminates the need for the use of a heat insulation sleeve and the like and is capable of maintaining a frictional torque to a low extent. A sliding bearing (1) has an inner ring (2), an outer ring (3), and a sliding contact member (4) interposed therebetween. The inner ring (2) has a curved surface (2a) formed along an outer circumference thereof and a shaft-receiving hole which fits on a supporting shaft along an inner circumference thereof. The sliding contact member (4) is a molded body, made of resin composition, which has a curved surface (4a) making sliding contact with the curved outer circumferential surface (2a) of the inner ring (2) with the curved surface (4a) being opposed to the curved outer circumferential surface (2a).Type: GrantFiled: February 23, 2012Date of Patent: April 7, 2015Assignee: NTN CorporationInventors: Kazuo Hirose, Seiichi Takada, Atsushi Morooka, Ikuma Fujitsuka
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Publication number: 20150086144Abstract: An oil-lubricated, tapered-land thrust bearing assembly (60) for automotive turbochargers (10) including a thrust bearing (30). The thrust bearing (30) includes an assembly of a base (62) with at least one insert (64 or 66), which is designed to control the oil film as a purposefully compliant structure based on applied force to optimize performance at low and high power operation. The ramp angle is relatively large at a low load and decreases to a smaller ramp angle at higher loads. On one side of the turbocharger (10), the thrust bearing assembly (60) may operate with a flinger sleeve (34) and a thrust washer (24) within a complementary bearing housing cover (32).Type: ApplicationFiled: March 6, 2013Publication date: March 26, 2015Inventors: Jason P. MOSCETTI, Christian LONGACRE
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Patent number: 8936397Abstract: A sliding bearing of a wind turbine and a method to perform a service at a sliding bearing are proposed. The sliding bearing has a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. The bearing pads are connected to the second bearing shell and the first bearing shell has a sliding surface that is prepared and arranged so that the bearing pads can slide along the sliding surface when the bearing shells are moved in respect to each other. A machining element is arranged between the first bearing shell and the second bearing shell to treat the sliding surface of the first bearing shell.Type: GrantFiled: September 18, 2013Date of Patent: January 20, 2015Assignee: Siemens AktiengesellschaftInventors: Bo Pedersen, Kim Thomsen
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Patent number: 8931957Abstract: A bearing comprises a resin matrix filled with fluoropolymer, graphite, and other discrete particles of an additive material that is attached to a backing material. The specific selection and mix of fillers with the resin matrix provides the desired blend of bearing properties such as wear resistance, fatigue and erosion resistance and low friction whilst maintaining sufficient flexibility for being formed into flanged cylindrical geometries without detriment to the adherence of the lining to the backing. A method for manufacturing a bearing comprises depositing to a backing material a fluid polymer bearing material comprised of a resin matrix filled with fluoropolymer, various fillers, and discrete particles of an additive to form a continuous consolidated bearing material, and curing the lining material to bond the lining material onto the backing material.Type: GrantFiled: August 25, 2008Date of Patent: January 13, 2015Assignee: GGB, Inc.Inventors: Adrian Hardgrave, Raphael Chantossel
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Patent number: 8882355Abstract: A bearing assembly and wind generator. The bearing assembly includes a plurality of bearing segments defining a sliding member and a bearing body, with the sliding member and bearing body being joined together, and the plurality of bearing segments being coupled together to define an annular bearing structure. Also, a wind generator includes a wind rotor supported upon a tower, a hydraulic pump coupled to the wind rotor, and with rotation of the hydraulic pump pressurizing a hydraulic fluid, and a hydraulic motor in fluid communication with the hydraulic pump, and an electrical generator driven by the hydraulic motor to produce electrical energy.Type: GrantFiled: December 14, 2009Date of Patent: November 11, 2014Inventor: Jochen Corts
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Patent number: 8814434Abstract: Durability-enhanced bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements includes a bearing surface. The bearing assembly may further include a support ring structure that carries the plurality of superhard bearing elements. The support ring structure may have a first portion that exhibits a first yield strength and a second portion that exhibits a second yield strength. The first yield strength of the first portion may be greater than the second yield strength of the second portion.Type: GrantFiled: October 26, 2011Date of Patent: August 26, 2014Assignee: US Synthetic CorporationInventor: Timothy N. Sexton
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Patent number: 8764295Abstract: Bearing elements, assemblies and apparatuses are provided as well as a method of manufacturing such components. In one embodiment, a bearing element comprises a superhard table forming a convex bearing surface and a radiused edge formed on the superhard table adjacent to the convex bearing surface. In another embodiment, a bearing element comprises a superhard table forming a concave bearing surface and a radiused edge formed on the superhard table adjacent to the concave bearing surface. In one embodiment, a bearing apparatus includes an inner bearing race assembly and an outer bearing race assembly. Each of the bearing race assemblies include a plurality of bearing elements. At least one of the inner and outer bearing race assemblies include a bearing element having an arcuate bearing surface and a radiused edge formed adjacent the arcuate bearing surface.Type: GrantFiled: November 10, 2011Date of Patent: July 1, 2014Assignee: US Synthetic CorporationInventors: Andrew E. Dadson, Timothy N. Sexton
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Patent number: 8746979Abstract: Bearing assemblies and apparatuses are disclosed. Such bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment of the present invention, a bearing apparatus includes a first bearing assembly including a first substantially continuous polycrystalline diamond bearing surface defining an annular surface, and a second bearing assembly including a second substantially continuous polycrystalline diamond bearing surface defining an annular surface. The second substantially continuous polycrystalline diamond bearing surface generally opposes the first substantially continuous polycrystalline diamond bearing surface.Type: GrantFiled: July 31, 2013Date of Patent: June 10, 2014Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Patent number: 8714826Abstract: A bearing assembly and wind generator. The bearing assembly includes a plurality of bearing segments defining a sliding member and a bearing body, with the sliding member and bearing body being joined together, and the plurality of bearing segments being coupled together to define an annular bearing structure. Also, a wind generator includes a wind rotor supported upon a tower, a hydraulic pump coupled to the wind rotor, and with rotation of the hydraulic pump pressurizing a hydraulic fluid, and a hydraulic motor in fluid communication with the hydraulic pump, and an electrical generator driven by the hydraulic motor to produce electrical energy.Type: GrantFiled: December 14, 2009Date of Patent: May 6, 2014Inventor: Jochen Corts
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Patent number: 8708564Abstract: Bearing apparatuses including contacting bearing surfaces comprising superhard materials are disclosed. In one embodiment, the present invention relates to bearings including polycrystalline diamond inserts or compacts defining a plurality of surfaces that move relative to one another and contact one another. For example, apparatuses may include radial bearings, or other bearings including arcuate bearing surfaces that more in relation to one another, without limitation. In one embodiment, a superhard bearing element may comprise a superhard table (e.g., polycrystalline diamond) forming an arcuate bearing surface. Further, such a superhard bearing element may comprise a chamfer formed about at least a portion of a periphery of the arcuate bearing surface. Bearing apparatuses including such bearing elements and various mechanical systems are disclosed.Type: GrantFiled: July 2, 2012Date of Patent: April 29, 2014Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Publication number: 20140086515Abstract: A sliding bearing of a wind turbine and a method to perform a service at a sliding bearing are proposed. The sliding bearing has a first bearing shell and a second bearing shell and a plurality of bearing pads arranged between the first bearing shell and the second bearing shell. The bearing pads are connected to the second bearing shell and the first bearing shell has a sliding surface that is prepared and arranged so that the bearing pads can slide along the sliding surface when the bearing shells are moved in respect to each other. A machining element is arranged between the first bearing shell and the second bearing shell to treat the sliding surface of the first bearing shell.Type: ApplicationFiled: September 18, 2013Publication date: March 27, 2014Inventors: Bo Pedersen, Kim Thomsen
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Patent number: 8678657Abstract: Various embodiments relate to polycrystalline diamond (“PCD”) bearing pads having first and second bearing pad portions that exhibit different wear rates, and bearing assemblies and apparatuses (e.g., thrust-bearing apparatuses and radial bearing apparatuses) that utilize such PCD bearing pads. In an embodiment, a PCD bearing pad for use in a bearing assembly of a subterranean drilling system includes a PCD bearing pad body including a plurality of directly-bonded together diamond grains. The PCD bearing pad body further includes a first bearing pad portion exhibiting a first wear resistance, and a second bearing pad portion exhibiting a second wear resistance greater than the first wear resistance.Type: GrantFiled: October 6, 2011Date of Patent: March 25, 2014Assignee: US Synthetic CorporationInventors: Cody W. Knuteson, Craig H. Cooley, Timothy N. Sexton
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Patent number: 8672550Abstract: Cooling-enhanced bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements may have a bearing surface. The bearing assembly may further include a support ring that carries the plurality of superhard bearing elements. The support ring may include at least an upper surface, an inner surface, and an outer surface. A plurality of cooling features may be arranged on at least one of the upper surface, the inner surface, or the outer surface of the support ring.Type: GrantFiled: March 2, 2012Date of Patent: March 18, 2014Assignee: US Synthetic CorporationInventors: S. Barrett Peterson, Timothy N. Sexton
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Patent number: 8641284Abstract: Bearing assemblies and apparatuses are disclosed. Such bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems. In an embodiment of the present invention, a bearing assembly includes a plurality of bearing elements distributed circumferentially about an axis. Each bearing element includes a superhard bearing surface. The plurality of bearing elements defines a plurality of gaps. Each gap is formed between circumferentially-adjacent bearing elements of the plurality of bearing elements. Further embodiments of the present invention include bearing apparatuses and downhole motors that may utilize any of the disclosed bearing assemblies.Type: GrantFiled: June 19, 2012Date of Patent: February 4, 2014Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Publication number: 20130294715Abstract: The invention relates to a bearing arrangement, in particular for sensor arrangements, comprising a first bearing part and a second bearing part, which are designed and arranged so as to be movable relative to each other and which touch each other at least partially in the course of said relative motion. The first bearing part is guided on at least one first running surface of the second bearing part, and the first running surface of the second bearing part has a recess, in which at least one ridge is formed, wherein the arrangement of the ridge in the recess does not influence the relative motion between the first bearing part and the second bearing part.Type: ApplicationFiled: January 12, 2012Publication date: November 7, 2013Applicant: Continental Teves AG & Co. oHGInventors: Manfred Goll, Thomas Krohn, Hilmar Müller
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Patent number: 8480304Abstract: A bearing ring for use in bearing apparatuses is disclosed. Such a bearing ring may comprise a body having a first array and a second array of bearing elements mounted to the body. The body may have an annular shape and the first array and the second array may be a concentric elliptical shapes, including circles. The body may comprise a plurality of bearing element pockets into which the bearing elements are disposed. In one aspect of the instant disclosure, the material of the bearing elements comprises polycrystalline diamond. A bearing apparatus comprising a first bearing ring and a second bearing ring is also disclosed. A drilling system for use in drilling subterranean formations employing the bearing apparatus is also disclosed.Type: GrantFiled: January 20, 2009Date of Patent: July 9, 2013Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Publication number: 20120294557Abstract: Self-lubricated bearings contain a substratum and a self-lubricating surface coating composition disposed thereon, wherein the self-lubricating surface coating composition further contains at least one cured thermosetting acrylate and at least one phenolic resin. The phenolic resin preferably contains a mixture of phenolic resin and polyvinyl formal resin. A self-lubricating surface coating composition is also provided, as well as several methods of making the bearings. The self-lubricated bearings of the present invention have surprisingly long service lives.Type: ApplicationFiled: May 16, 2011Publication date: November 22, 2012Applicant: New Hampshire Ball Bearings, Inc.Inventors: Richard Soelch, Thomas Auletto, Grant Drew
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Patent number: 8220999Abstract: Hydrodynamic bearing assemblies and apparatuses are disclosed. Such hydrodynamic bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems. In one embodiment of the present invention, a hydrodynamic bearing assembly includes a plurality of bearing elements distributed circumferentially about an axis. Each bearing segment includes a superhard bearing surface. The plurality of bearing elements defines a plurality of seams. Each seam is formed between circumferentially-adjacent bearing elements of the plurality of bearing elements. Further embodiments of the present invention include hydrodynamic bearing apparatuses and downhole motors that may utilize any of the disclosed hydrodynamic bearing assemblies.Type: GrantFiled: January 26, 2011Date of Patent: July 17, 2012Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Patent number: 8210747Abstract: Bearing apparatuses including contacting bearing surfaces comprising superhard materials are disclosed. In one embodiment, the present invention relates to bearings including polycrystalline diamond inserts or compacts defining a plurality of surfaces that move relative to one another and contact one another. For example, apparatuses may include radial bearings, or other bearings including arcuate bearing surfaces that more in relation to one another, without limitation. In one embodiment, a superhard bearing element may comprise a superhard table (e.g., polycrystalline diamond) forming an arcuate bearing surface. Further, such a superhard bearing element may comprise a chamfer formed about at least a portion of a periphery of the arcuate bearing surface. Bearing apparatuses including such bearing elements and various mechanical systems are disclosed.Type: GrantFiled: August 16, 2006Date of Patent: July 3, 2012Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Patent number: 8167496Abstract: A slide bearing has at least one bearing shell for accommodating a component to be supported. The at least one bearing shell has two grooves that run in the circumference direction on its slide surface, into which grooves guide elements for lubricant are laid. The grooves and/or the guide elements have at least one holding element.Type: GrantFiled: October 30, 2009Date of Patent: May 1, 2012Assignee: MAHLE International GmbHInventors: Wolfgang Issler, Theo Mossmann
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Patent number: 8167270Abstract: The invention improves reliability of a valve gear in which a cobalt-based alloy is welded by plasma power building up. The valve gear includes a bearing 2 having a sliding surface against a valve shaft 1. The valve gear having a welded layer 12 made of heat-resistant cobalt-based alloy, based on plasma powder building up, formed on the sliding surface against the valve shaft 1. The welded layer 12 includes a first welded layer 12a formed on the surface of the bearing 2, having a dilution ratio of 5 to 25% and a second welded layer 12b formed on the first welded layer 12a, having a dilution ratio of 50% or less of the dilution ratio of the first welded layer 12a. The dilution ratio indicates the penetration amount of the welding metal into the base metal, and is a value obtained by B/A×100 (%) wherein A represents the total amount of the welded metal and B represents the amount of the welding metal penetrating into the base metal.Type: GrantFiled: March 12, 2007Date of Patent: May 1, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Mao Takei, Toshinari Nishimura, Takahiko Hirohata, Masaya Kanikawa
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Patent number: 8021051Abstract: A sleeve bearing assembly and method of construction therefore has an inner portion constructed from a plurality of yarns to provide a journal bearing surface for receipt of a journal for relative movement therein and an elastic outer portion injection molded at least partially about the inner portion. The plurality of yarns are woven together with at least some of the yarns being woven in a warp direction corresponding to a length of the journal bearing surface and in a weft direction corresponding to a circumferential direction of the journal bearing surface to form a backing of the inner portion. At least one of the plurality of yarns is provided as a self-lubricating yarn woven with the backing in a weft direction to substantially form the bearing surface radially inwardly of the backing.Type: GrantFiled: June 27, 2007Date of Patent: September 20, 2011Assignee: Federal-Mogul World Wide, Inc.Inventor: Benjamin B. James
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Patent number: 7896551Abstract: Hydrodynamic bearing assemblies and apparatuses are disclosed. Such hydrodynamic bearing assemblies may be employed in bearing apparatuses for use in downhole motors of a subterranean drilling system or other mechanical systems. In one embodiment of the present invention, a hydrodynamic bearing assembly includes a plurality of bearing segments distributed circumferentially about an axis. Each bearing segment includes a superhard bearing surface. The plurality of bearing segments define a plurality of seams. Each seam is formed between circumferentially-adjacent bearing segments of the plurality of bearing segments. Further embodiments of the present invention include hydrodynamic bearing apparatuses and downhole motors that may utilize any of the disclosed hydrodynamic bearing assemblies.Type: GrantFiled: October 15, 2007Date of Patent: March 1, 2011Assignee: US Synthetic CorporationInventors: Craig H. Cooley, Timothy N. Sexton
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Publication number: 20090268995Abstract: A thrust bearing assembly comprising a bearing runner and a bearing carrier, the carrier defining a plurality of thrust pad sites annularly around the carrier, with a thrust pad disposed at a site and with the carrier limiting movement of the thrust pad in a direction generally radial to the longitudinal axis of the runner while allowing the thrust pad to move in a direction generally parallel to the longitudinal axis. Though the range of movement is limited, the pads can tilt under load to form a hydrodynamic wedge as is known in the art. An embodiment comprises a bearing runner having a wear resistant face and a bearing carrier defining thrust pad sites disposed annularly around the carrier. In one implementation, at each site, a deflection element (e.g., Belleville washer) is disposed in a cavity and a pad is disposed over the deflection element. The pad can be at least partially disposed within the cavity. The wear resistant face contacts the pad.Type: ApplicationFiled: April 30, 2009Publication date: October 29, 2009Applicant: CERADYNE, INC.Inventors: RUSSELL D. IDE, Russell C. Ide
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Publication number: 20080304777Abstract: A conveyor chain including a chain pin having an exterior surface; a bearing having a generally tubular body portion having an exterior surface and an interior surface, the chain pin disposed in the generally tubular body portion of the bearing so that the interior surface of the bearing surrounds the exterior surface of the chain pin; and a low friction liner material secured to a surface selected from the exterior surface of said chain pin, the interior surface of the bearing, the exterior surface of the bearing, or combinations thereof.Type: ApplicationFiled: June 5, 2008Publication date: December 11, 2008Applicant: ROLLER BEARING COMPANY OF AMERICA, INC.Inventors: Kenneth D. Missman, Saul Murillo, Brad Haywood
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Patent number: 7290935Abstract: A ceramic bearing assembly includes a shaft (20), and a bearing sleeve (10) rotatably receiving the shaft. The bearing sleeve includes an inside wall. First and second bearing blocks (120, 140) are formed at the inside wall at first and second ends of the bearing sleeve respectively. The first bearing blocks are arranged in circular fashion, and the second bearing blocks are arranged in circular fashion complementarily offset from the first bearing blocks. Each of the first and second bearing members defines a concave bearing surface (122, 142), the bearing surfaces cooperatively supporting the shaft therebetween.Type: GrantFiled: October 6, 2003Date of Patent: November 6, 2007Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Mu Chi Hsu
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Patent number: 7234869Abstract: A bearing for supporting a shaft submerged in molten zinc, has a bearing surface comprising a steel cylindrical liner having slots retaining ceramic shaft-engaging bearing elements.Type: GrantFiled: February 2, 2006Date of Patent: June 26, 2007Assignee: Alphatech, Inc.Inventor: Jorge A. Morando
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Patent number: 7207722Abstract: 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 surface (14) of the main body to the axial hole of the main body. The mating member has a same configuration as the cutout of the main body and can be inserted into the cutout to provide a complete cylinder having the axial hole therein. The main body and the mating member are made of different materials, one is metal alloy which is capable of impregnating lubricant oil therein, the other is ceramic having high hardness. Thus, the combined bearing may combine the advantages of an oil impregnated bearing and the advantages of a ceramic bearing.Type: GrantFiled: August 6, 2003Date of Patent: April 24, 2007Assignees: Hong Fu Jin Precision Ind. (Shenzhen) Co., Ltd., Hon Hai Precision Ind. Co., Ltd.Inventors: Chin-Lung Wang, Gwo-Yan Huang, Shang-Yi Chou, Yan-Li Xu, Wu-Kuang Chen, Chih-Chien Hung
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Patent number: 6997614Abstract: An elastic rubber bearing is provided with an intermediate tube, namely, a bush bearing with a reinforcing insert arranged in the elastomeric bearing body. The design of the bearing includes a pretension, which is distributed as uniformly as possible both in relation to the circumference and in the axial direction. The pretension is generated in the elastomer in a bearing body after the vulcanization by calibrating the outer sleeve. A reinforcing element of the bearing includes an intermediate tube slotted on two sides in relation to its axial extension.Type: GrantFiled: May 27, 2004Date of Patent: February 14, 2006Assignee: ZF Lemförder Metallwaren AGInventors: Helmut Kammel, Bernd Kümper, Axel Sichler
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Patent number: 6948784Abstract: A track pin bushing for cooperating with a track pin in an endless track has a tubular body with a metallurgically bonded wear-resistant coating and a method for forming such a coated track pin bushing is taught herein. The tubular body, formed of an iron-based alloy, has an outer surface that is carburized and quenched, i.e., case-hardened, in at least a section thereof. At least a portion of the case hardened section has been removed to a depth sufficient to expose a non-carburized layer of the iron-based alloy. A hard metal alloy slurry is disposed on the non-carburized layer and forms a metallurgical bond between the non-carburized layer and the coated unfused slurry by fusing the hard metal alloy. The thickness of the unfused slurry is adjusted to be from 1.67 to 2.0 times a final thickness of the wear-resistant coating. The wear-resistant coating comprises a fused, metal alloy comprising at least 60% iron, cobalt, nickel, or alloys thereof.Type: GrantFiled: March 6, 2002Date of Patent: September 27, 2005Assignee: Deere & CompanyInventors: Timothy D. Wodrich, Todd B. Niemann, Gopal S. Revankar
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Patent number: 6729766Abstract: The invention relates to a refractory bearing and in particular to a bearing for use in contact with molten metal, such as zinc and aluminum. The bearing includes a housing with a working surface and at least one wear-resistant insert secured to the working surface. The insert is secured to the housing by mechanically interlocking with a retainer assemblage. In one embodiment, the retainer assemblage engages a relief in the insert to secure the insert to the housing despite dimensional changes caused by thermal expansion. The insert preferably comprises sialon.Type: GrantFiled: January 17, 2002Date of Patent: May 4, 2004Assignee: Vesuvius Crucible CompanyInventor: Mark Stock Hall
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Patent number: 6676296Abstract: The present invention relates to a bearing used in a transmission. The radial bearing for supporting a rotating shaft of the transmission has a substantial elliptical-cylinder-shaped inner circumferential surface. At least two lubricating resin members are provided on the inner circumferential surface so that the members are extending in the axial direction and symmetric with respect to the central axis of the bearing. The rigidity of the bearing is increased as increasing the rotation speed of the shaft.Type: GrantFiled: August 28, 2001Date of Patent: January 13, 2004Assignee: Hitachi, Ltd.Inventors: Tomoaki Inoue, Kohji Aizawa, Masaaki Nakano, Masanori Katayama
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Patent number: 6655843Abstract: A core member has a core member side journal portion and a core member bolt hole on both sides of the core member side journal portion and is provided in a separation state from a surface of a casting mold through a cast-off pin including a step portion in a vertical direction in the casting mold. A radius of curvature of the core member side journal portion of the core member is made greater than a radius of curvature of the cap side journal portion of the bearing cap in such a manner that a clearance between the cap side journal portion and the core member side journal portion is larger than a clearance between the core member bolt hole and the cast-off pin. A pouring gate is provided on a side surface of the casting mold to inject a base material along the bonding portion of the bearing cap.Type: GrantFiled: November 25, 2002Date of Patent: December 2, 2003Assignee: Suzuki Motor CorporationInventor: Takashi Suzuki
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Patent number: 6467966Abstract: The invention relates to a radial bearing which can be used for bearing problems in which an angular displacement occurs during operation by virtue of the elastically flexible shaping of a bearing sleeve on which an elastically flexible bearing element with an essentially matrix-type fibrous structure is arranged.Type: GrantFiled: November 29, 2000Date of Patent: October 22, 2002Assignee: KSB AktiengesellschaftInventors: Ralf Diederich, Horst Schaefer, Anna Usbeck
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Patent number: 6393699Abstract: A bearing assembly comprises a pair of relatively rotatable bearing components, where at least a portion of one of the bearing components is journalled to at least a portion of the other one of the bearing components. One of the first bearing component includes an outer, annular journalled surface and the second bearing component includes an inner, annular journalled surface, and one of the outer or inner and inner journalled surfaces include a plurality of recesses disposed there about. Each of the plurality of recesses are filled with an insert formed from a solid, abrasion resistant, self lubricating material; and the insert protrudes outwardly from the recesses, thereby providing a bearing surface for wearing against the other one of the annular journalled surfaces. Preferably, the solid, abrasion resistant, self-lubricating material is a polyamide resin material.Type: GrantFiled: May 10, 1999Date of Patent: May 28, 2002Inventor: Larry E. Koenig
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Patent number: 6109792Abstract: A combination stack tightener and journal bearing for a shear shredding or material processing apparatus includes a retaining ring fixedly mounted to an end of the shaft; a pressure disk slidingly positioned on the shaft between the retaining ring and the stack of cutter disks or material processing discs; a torque nut positioned on the shaft between the retaining flange and the pressure disk, where the torque nut includes an inner face facing the pressure disk, an outer face opposite the inner face, a central bore receiving the shaft therethrough, a plurality of axially extending threaded bores distributed about the central bore and extending completely through the torque nut, and a plurality of recesses formed into the outer circumferential surface of the torque nut; a plurality of jack screws threaded into the plurality of threaded bores, in through the outer face of the torque nut and out through the inner face, so as to force the pressure disk and torque nut away from one another, thereby securing the toType: GrantFiled: May 13, 1999Date of Patent: August 29, 2000Inventor: Larry E. Koenig
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Patent number: 6000852Abstract: A bearing assembly comprises a pair of relatively rotatable bearing components, where at least a portion of one of the bearing components is journalled to at least a portion of the other one of the bearing components. One of the first bearing component includes an outer, annular journalled surface and the second bearing component includes an inner, annular journalled surface, and one of the outer or inner and inner journalled surfaces include a plurality of recesses disposed there about. Each of the plurality of recesses are filled with an insert formed from a solid, abrasion resistant, self lubricating material; and the insert protrudes outwardly from the recesses, thereby providing a bearing surface for wearing against the other one of the annular journalled surfaces. Preferably, the solid, abrasion resistant, self-lubricating material is a polyamide resin material.Type: GrantFiled: March 2, 1998Date of Patent: December 14, 1999Inventor: Larry E. Koenig
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Patent number: 5817397Abstract: The surface of a lining member 3 is formed with a multiplicity of uneven surfaces 3a. The entire surface of the lining member 3 is coated by an intermediate layer 4 which comprises Ni. The surface of the intermediate layer 4 is additionally coated by an overlay layer 5 which comprises an Sn alloy. The lining member 3 has a surface roughness t.sub.1, as a result of forming the uneven surfaces 3a, which is chosen to be in a range from 2 to 8 .mu.mRz, and a thickness t.sub.2 of the intermediate layer 4 is chosen to be in a range from 0.01 to 0.6 .mu.m. When a sliding bearing 1 is heated, the overlay layer 5 and the intermediate layer 4 chemically react with each other to produce an Sn--Ni compound. As the overlay layer 5 becomes abraded, the Sn--Ni compound 6 will be exposed on the sliding contact surface. However, the described choice prevents the Sn--Ni compound from being exposed across the entire region of the sliding contact surface, thus improving the anti-seizure resistance of the sliding bearing 1.Type: GrantFiled: October 7, 1996Date of Patent: October 6, 1998Assignee: Taiho Kogyo Co., Ltd.Inventors: Soji Kamiya, Yuji Yokota, Yoshio Kumada
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Patent number: 5796349Abstract: The axial bearing includes a first ring and a second ring. During operation of the axial bearing, the first ring rotates with respect to the second ring. Over time the foregoing rotation produces wear of the first ring; consequently, exposes layers of the first ring to the second ring. The different layers of the first ring produce variations in the coefficient of friction within the axial bearing. If the axial bearing is associated with a drive motor, then the variations in the coefficient of friction change the load on the drive motor. The change in load upon the drive motor may be monitored to indicate axial bearing wear or the need for axial bearing replacement.Type: GrantFiled: September 18, 1996Date of Patent: August 18, 1998Assignee: Ansimag Inc.Inventor: Manfred P. Klein
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Patent number: 5716143Abstract: A spherical plain bearing is provided having improved wear resistance under heavy axial and radial loads of a rotating shaft. The bearing includes a pillow block having a concave inner surface, a split cylindrical protective sleeve for mating with and detachably clamping around the shaft, the outer surface of the sleeve having a peripheral recess. The bearing includes a split cylindrical liner having an inner wear resistant surface for sliding contact within the recess of the protective sleeve, and multiple thrust plate rings, and a split cylindrical cartridge for holding the liner in the recess of the protective sleeve. The bearing includes a plurality of high wear-resistant elements for providing high wear resistance and low friction resistance when placed into the wear surfaces of the bearing.Type: GrantFiled: July 12, 1995Date of Patent: February 10, 1998Assignee: Allegheny Ludlum CorporationInventors: Timothy M. Browne, Jeffrey C. Badac, J. David Scott, Robert M. Suchevich, Joseph A. Downie
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Patent number: RE39948Abstract: A solid waste material comminuting system having a an electric motor for providing rotary motion, a pair of cutter stacks with cutter elements of one stack interleaved with cutter elements of the other, and gear means to transmit the rotary motion of the electric motor to counter-rotate cutter elements of one stack with cutter elements of the other. Each of the cutter stacks comprises a central shaft journaled for rotation and a seal-bearing assembly/module at each end of the central shafts. Each bearing assembly/module comprises an end housing, and a pair of insertable pre-assembled seal-bearing elements/assemblies mountable in each of said end housings. One seal-bearing element/assembly has a thru-hole for journaling a first shaft for rotation and a second seal-bearing element/assembly has a thru-hole for journaling a second shaft for rotation.Type: GrantFiled: April 22, 2005Date of Patent: December 25, 2007Assignee: JWC EnvironmentalInventors: Joseph W. Chambers, Sr., Robert T. Sabol, Craig J. Fennessy