Race, Liner Or Sleeve Patents (Class 384/569)
  • Publication number: 20140254964
    Abstract: The invention relates to a bearing system having a bearing pair made up of at least one bearing and at least one running partner, wherein a coating which comprises a layer of which the main constituent is amorphous SiO2 is applied to at least one running surface of the bearing pair.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 11, 2014
    Inventors: Gerhard THUMM, Till MERKEL, Volker VOGGESER, Christian LEHNERT
  • Patent number: 8827564
    Abstract: A tapered cylinder portion, a radially extending portion, a cylindrical portion, a center backup portion, and a large diameter side curved portion are formed from an integral metallic plate.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: September 9, 2014
    Assignee: Jtekt Corporation
    Inventors: Kazuki Hamada, Hiroshi Ueno, Hitoshi Yano, Kanichi Koda, Masashi Sakaguchi, Toshihiko Shiraki, Ryo Oonishi
  • Patent number: 8801292
    Abstract: A roller bearing capable of effectively restraining occurrence of smearing or the like is provided. A cylindrical roller bearing includes: an outer ring having an outer ring raceway surface; an inner ring having an inner ring raceway surface that faces the outer ring raceway surface; and a plurality of cylindrical rollers rollably disposed between the outer ring raceway surface and the inner ring raceway surface. The inner ring raceway surface of the inner ring is provided with a manganese phosphate coating, and a rolling contact surface of each cylindrical roller is provided with a diamond-like carbon coating.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: August 12, 2014
    Assignee: JTEKT Corporation
    Inventors: Yasuhiro Kobayashi, Ryohei Hosaka
  • Publication number: 20140185977
    Abstract: A titanium alloy that is created to be formed into a bearing component, wherein the titanium alloy comprises from 5 to 7 wt % Al, from 3.5 to 4.5 wt % V, from 0.5 to 1.5 wt % Mo, from 2.5 to 4.5 wt % Fe, from 2.5 to 4.5 wt % Fe, from 0.05 to 2 wt % Cr. The alloy can optionally include one or more of the following elements: up to 2.5 wt % Zr, up to 2.5 wt % Sn, and up to 0.5 wt % C. The balance of the composition comprises Ti together with unavoidable impurities.
    Type: Application
    Filed: April 26, 2012
    Publication date: July 3, 2014
    Applicant: AKTIEBOLAGET SKF
    Inventors: Alejandro Sanz, Alejandro De Vries
  • Publication number: 20140177990
    Abstract: The present invention provides a rolling bearing which can be large-sized, is excellent in its corrosion resistance, and is allowed to prevent mounting accuracy from deteriorating, a fixing force from decreasing, vibration from occurring at a portion of the rolling bearing to be fixed to a bearing box or the like, and can be used for a long term even in a highly corrosive environment. A rolling bearing (1) has an inner ring (2), an outer ring (3), and rolling elements (4) as bearing members thereof. Of regions of the bearing members which are exposed to a corrosive environment, a film having a sacrificial anode action for a base material of the bearing members is formed in a region including at least a surface (c, d) of the rolling bearing (1) to be fixed. The film formed on the surface (c, d) thereof to be fixed is porous. The base material of the bearing members consists of an iron-based material.
    Type: Application
    Filed: August 9, 2012
    Publication date: June 26, 2014
    Applicant: NTN CORPORATION
    Inventors: Katsuhiro Suzuki, Eiichirou Shimazu
  • Publication number: 20140177993
    Abstract: The bearing (10) according to the invention includes an outer ring (12), with a shape generally of revolution around an axis (X), an inner ring (14), with a shape generally of revolution around the axis (X), positioned coaxially to the outer ring (12), and rolling elements (16), for example balls, positioned radially between the inner ring (14) and the outer ring (12). The rolling elements (16) are at least partially in direct contact with at least one of the inner (14) and outer (12) rings. The ring (12, 14) at least partially in direct contact with the rolling elements (16) is made with a base of a powder of a sintered material.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: AKTIEBOLAGET SKF
    Inventors: Gwenole Le Jeune, Yves Maheo
  • Publication number: 20140169719
    Abstract: A cartridge bearing assembly for rotatably coupling a shaft with a housing includes a bearing having a central axis and opposing axial ends. The bearing includes first and second, axially spaced inner rings disposeable upon the shaft, at least one outer ring disposed circumferentially about the two inner rings, and first and second sets of rolling elements disposed between the inner and outer rings. A carrier includes a first tubular portion disposed generally about the bearing first axial end and a second tubular portion disposed generally about the bearing second axial end. The first and second tubular portions are coupled together to enclose the bearing, the carrier being at least partially disposeable within the housing bore so as to couple the bearing with the housing. Preferably, a coupler is provided to connect the first and second inner rings so as to establish preload within the bearing.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Stefanie SEUFERT, Eric RASOLONJATOVO, Thierry Poulle
  • Publication number: 20140169718
    Abstract: In an embodiment, a roller bearing apparatus may include a rotor having first superhard raceway elements distributed circumferentially about an axis. Each first superhard raceway element includes a raceway surface positioned/configured to form a first portion of a raceway. The apparatus includes a stator including second superhard raceway elements generally opposed to the first superhard raceway elements. Each second superhard raceway element includes a raceway surface positioned/configured to form a second portion of the raceway. The apparatus includes rolling elements interposed between the rotor and stator and positioned and configured to roll on the raceway. One or more of the rolling elements may be configured to elastically deform on the raceway during use. At least a portion of the raceway exhibits a first modulus of elasticity greater than a second modulus of elasticity of at least a portion of the one or more of the rolling elements.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: US SYNTHETIC CORPORATION
    Inventor: US SYNTHETIC CORPORATION
  • Publication number: 20140153855
    Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing comprising at least one part surrounding at least one of the rings, said outer ring comprising two separate parts, each of the two parts of said outer ring defining one closed space with the housing. At least one part forming said housing or said outer ring has a sandwich structure with an inner layer made of a damping material and two outer layers made of a metallic material surrounding the inner layer.
    Type: Application
    Filed: May 16, 2011
    Publication date: June 5, 2014
    Inventors: Thierry Adane, Stephane Cordier
  • Publication number: 20140147070
    Abstract: A bearing ring for a radial rolling bearing, in particular for a cylindrical roller bearing or needle bearing which has, on one of the radial surface areas thereof, a track for a set of cylindrical rolling bodies which are cageless or are guided by a cage and one or two guide flanges axially bounding the track of the rolling bodies is/are fastened to the axial end surfaces of said bearing by adhesive bonding. Each guide flange has a rectangular profile cross section with a horizontal fastening limb and a vertical flange limb and, by way of the horizontal fastening limb thereof, is adhesively bonded in an encircling axial groove in an axial end surface of the bearing ring.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 29, 2014
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Jan-Rene Aust, Heinz Schafers, Matthias Fick
  • Patent number: 8734023
    Abstract: A race for a rolling-element bearing is characterized in that the race comprises at least one circumferentially-extending region having a reduced stiffness compared with the remainder of the race. The or each circumferentially-extending region may be thinner than the remainder of the race, and may further comprise a hole or a slot. In a particular preferred embodiment there are two such circumferentially-extending regions, each extending around an arc of approximately 60 degrees in the circumferential direction.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: May 27, 2014
    Assignee: Rolls-Royce PLC
    Inventor: Daren R. Ashmore
  • Publication number: 20140126851
    Abstract: A rolling contact bearing includes a shaft having a first radial elevation and a second radial elevation. A first inner ring has a first raceway for the rolling bodies to roll on, a first radial narrowing and a second radial narrowing, the first radial elevation and the first radial narrowing forming a first press fit, and, respectively, the second radial elevation and the second radial narrowing forming a second press fit. The shaft has a third radial elevation and a fourth radial elevation. A second inner ring has a second, radially outer rolling body raceway for rolling bodies to roll on, a third radial narrowing and a fourth radial narrowing, wherein the third radial elevation and the third radial narrowing forming a third press fit and, respectively, the fourth radial elevation and the fourth radial narrowing forming a fourth press fit.
    Type: Application
    Filed: February 27, 2012
    Publication date: May 8, 2014
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventor: Heiko Schmidt
  • Patent number: 8708571
    Abstract: Construction of a rolling bearing unit with a combined seal ring that enables press fitting of a cylindrical section 15 of a slinger 13 to be pressure fitted on to a slinger fitting surface 20 of an inner ring 19a without losing the seal between the slinger fitting surface 20 and the cylindrical section 15 is achieved. Of the surface of the inner ring 19a, the continuous section that comprises a portion corresponding to the slinger fitting surface portion 20, a portion corresponding to the chamfered section 25a and a joining section 27a between these portions are simultaneously ground with a formed grindstone. As a result, the continuous section is entirely formed into a flat surface with no non-differential corners in the cross section, or in other words, with no sharp corners.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: April 29, 2014
    Assignee: NSK Ltd.
    Inventor: Hirofumi Kurohara
  • Patent number: 8705102
    Abstract: A multi-function apparatus capable of properly coping with cases where an auto-clear function is activated is provided. An operating section of a copying machine displays an operating screen associated with each function and receives inputs via the operating screen. According to the auto-clear function, set values associated with predetermined functions are reset to initial values when no input operation has been performed via the operating section over a predetermined time period, and the operating section is caused to display an operating screen associated with a predetermined function. A controller unit of the machine determines whether the copying machine should be operated in a first mode in which disconnection from the network is carried out or in a second mode in which connection to the network is maintained. The controller unit selects one of the first mode and the second mode based on a result of the determination.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: April 22, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirohiko Tashiro
  • Publication number: 20140105530
    Abstract: A device including an annular groove obtained on a lateral assembly surface of a ring of a bearing in contact in use with a seat with respect to which the ring must remain stationary; a first element shaped as a circumferentially open ring and preferably defined by a circumferential ring segment having a non-constant radial thickness (S) and always smaller than a radial depth (P) of the annular groove, mounted within the annular groove free to move circumferentially in the annular groove; and a second element, shaped as a closed ring, which engages the annular groove, within which it is mounted radially superimposed on the first element on the side of the lateral assembly surface and having a constant radial thickness (F) such that the second element protrudes radially and overhangingly with respect to the lateral assembly surface at least in correspondence with part of the first element.
    Type: Application
    Filed: October 17, 2013
    Publication date: April 17, 2014
    Applicant: Aktiebolaget SKF
    Inventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
  • Patent number: 8696214
    Abstract: A raceway bushing which has a substantially cylindrical peripheral wall that forms a bushing inner surface and a bushing outer surface, a bottom wall which extends from the peripheral wall and has an inner bottom surface and an outer bottom surface, and a bottom opening configured in the bottom wall. The bottom opening is bordered by an annular collar that rises axially beyond the inner bottom surface.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 15, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Ziegler, Alexander Pabst, Frank Beeck, Dieter Hauck
  • Patent number: 8690450
    Abstract: A surface shape of a machining surface of a rotating elastic grindstone is rendered to be a shape appropriate to a to-be-machined surface of a work. With the work being rotated, the rotating elastic grindstone is held in engagement to an end of the to-be-machined surface of the work. The elastic grindstone is moved along a machining trajectory effective to allow the machining surface of the elastic grindstone, which is so formed as to suit to the to-be-machined surface, to follow the to-be-machined surface of the work. The to-be-machined surface of the work so superfinished represents a smooth surface free from any machining trace such as a crossing-angle pattern.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: April 8, 2014
    Assignee: NTN Corporation
    Inventors: Gousuke Itou, Satoshi Fujimoto
  • Publication number: 20140086520
    Abstract: With the inner race and shaft fitted with a clearance fit, the bearing satisfies the relation: t/w>0.5, where t is an inner race minimum thickness at a contact area between each rolling element and the inner race raceway, in the direction perpendicular to the raceway, and w is the circumferential distance between adjacent rolling elements (w=?×SD/Z, Z is the number of rolling elements, and SD is the bearing inner diameter). With the outer race and housing fitted in a clearance fit, the bearing satisfies the relation: t/w>0.5, where t is the inner race minimum thickness at a contact area between each rolling element and the outer race raceway, in the direction perpendicular to the raceway), and w is the circumferential distance between adjacent rolling elements (w=?×LD/Z, LD is the bearing inner diameter).
    Type: Application
    Filed: May 8, 2012
    Publication date: March 27, 2014
    Applicant: NTN CORPORATION
    Inventor: Tsuyoshi Niwa
  • Patent number: 8661686
    Abstract: A shell type outer ring 2 of a shell type needle roller bearing 1 is formed by a pressing combined with an ironing step, and the lubricating conditions in this ironing step on the outer-diameter ironed surface, which becomes the outer-diameter surface of the outer ring 2, are in a substantially fluid lubricating state so as to restrict the circumferential surface roughness of the inner-diameter surface, the inner-diameter roundness, and the amount of uneven thickness of the tubular portion to predetermined value ranges, thereby prolonging the life of the shell type needle roller bearing and lowering the acoustic level during use.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: March 4, 2014
    Assignee: NTN Corporation
    Inventors: Shinji Oishi, Masatoshi Niina
  • Publication number: 20140050435
    Abstract: A rotary mechanism for incrementally advancing a rotary element (13) with respect to a ground member (12) comprises a unidirectional clutch (41) and a rotary actuator (21, 33, 39). Actuation of the actuator is against a resilient bias (34), and overcomes friction between the rotary element and the ground member to advance the rotary element with the unidirectional clutch locked. Release of the actuator allows re-setting thereof by the resilient bias, the friction between the rotary element and the ground member resisting further relative movement.
    Type: Application
    Filed: February 29, 2012
    Publication date: February 20, 2014
    Applicant: RICARDO UK LTD.
    Inventors: Jonathan Charles Wheals, Pierre Marc Guern
  • Publication number: 20140029886
    Abstract: A part-bearing-ring of a rolling-element bearing includes first and second assembly bores on its end surface, and the second assembly bore has a larger diameter than the first assembly bore so that it can accommodate a securing sleeve. The second assembly bore may include an internal thread for attaching the securing sleeve. Also a bearing ring formed of two part-bearing-rings and a securing sleeve and a method of installing a bearing ring.
    Type: Application
    Filed: January 26, 2012
    Publication date: January 30, 2014
    Inventors: Matthias Hofmann, Henning Kern, Holger Kristandt, Baozhu Liang, Edgar Pickel, Ingo Schulz
  • Publication number: 20140023305
    Abstract: A rolling bearing, particularly a rotor bearing, or main bearing, for a wind power generating plant, the bearing having at least two mutually concentric rings separated from each other by a gap in which one or more rows of rolling elements roll along raceways on both rings, such that the two rings are rotatable in mutually opposite directions about their common axis, wherein each ring has at least one connection surface for connection to a foundation, wherein the connection surfaces extend parallel to one another and are passed through approximately perpendicularly by a plurality of fastening bores for receiving fastening bolts extending through them or screwed into them, wherein the raceway of at least one rolling-element row is formed on a part separate from the ring concerned and is pushed away from the ring concerned in a direction perpendicular to the connection surfaces, by at least one resilient element.
    Type: Application
    Filed: January 19, 2012
    Publication date: January 23, 2014
    Applicant: IMO Holding GmbH
    Inventor: Hubertus Frank
  • Publication number: 20130343690
    Abstract: A roller bearing capable of effectively restraining occurrence of smearing or the like is provided. A cylindrical roller bearing includes: an outer ring having an outer ring raceway surface; an inner ring having an inner ring raceway surface that faces the outer ring raceway surface; and a plurality of cylindrical rollers rollably disposed between the outer ring raceway surface and the inner ring raceway surface. The inner ring raceway surface of the inner ring is provided with a manganese phosphate coating, and a rolling contact surface of each cylindrical roller is provided with a diamond-like carbon coating.
    Type: Application
    Filed: March 16, 2012
    Publication date: December 26, 2013
    Applicant: JTEKT CORPORATION
    Inventors: Yasuhiro Kobayashi, Ryohei Hosaka
  • Publication number: 20130343689
    Abstract: A roller bearing capable of effectively improving the service life of the roller bearing is provided by performing surface treatment with coating. A cylindrical roller bearing includes: an outer ring having an outer ring raceway surface; an inner ring having an inner ring raceway surface that faces the outer ring raceway surface; and a plurality of cylindrical rollers rollably disposed between the outer ring raceway surface and the inner ring raceway surface. The inner ring raceway surface of the inner ring is provided with a black oxidation coating, and a rolling contact surface of each cylindrical roller is provided with a diamond-like carbon coating.
    Type: Application
    Filed: March 16, 2012
    Publication date: December 26, 2013
    Applicant: JTEKT CORPORATION
    Inventors: Yasuhiro Kobayashi, Ryohei Hosaka
  • Patent number: 8596875
    Abstract: A bearing constituent member includes a surface layer, at least one of particles composed of vanadium nitride having a particle diameter of 0.2 to 2 ?m and particles composed of vanadium carbonitride having a particle diameter of 0.2 to 2 ?m are present in the surface layer ranging from the surface to a depth of 10 ?m and at least one of the area ratio of the particles composed of vanadium nitride having a particle diameter of 0.2 to 2 ?m and the particles composed of vanadium carbonitride having a particle diameter of 0.2 to 2 ?m in the surface layer ranging from the surface to a depth of 10 ?m is 1 to 10%.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: December 3, 2013
    Assignee: JTEKT Corporation
    Inventors: Katsuhiko Kizawa, Tsuyoshi Mikami, Kentarou Ono, Chikara Nakajima
  • Patent number: 8596876
    Abstract: A roller bearing comprises at least two rows of rollers disposed between an inner ring and an outer ring. At least two tracks guide the respective rows of roller and are defined in the axial direction of the inner ring or the outer ring. At least one flange abuts axial ends of axially-adjacent rows of rollers and extends radially from a radially outer side or a radially inner side of the inner ring or the outer ring. At least one recess is defined on the side of the inner ring or the outer ring that is opposite of the radially outer side or the radially inner side of the inner ring or the outer ring, from which the at least one flange radially extends. The at least one recess at least partially overlaps the at least one flange in the axial direction.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 3, 2013
    Assignee: Aktiebolaget SKF
    Inventors: Armin Olschewski, Arno Stubenrauch
  • Publication number: 20130308888
    Abstract: An outer ring for rocking bearing (11a) includes a raceway surface (12a) on the inner diameter side and has flange parts (13a) and (13b) provided by bending axial both ends to the inner diameter side. The flange parts (13a) and (13b) are provided with bent parts (17a) and (17b) axially bent toward the raceway surface (12a) side so as to enfold a retainer arranged on the inner diameter side. Thus, the retainer can be enfolded by the bent parts (17a) and (17b). Therefore, even when the retainer comes to be moved to the inner diameter side of the outer ring for rocking bearing (11a), the retainer is caught by the bent parts (17a) and (17b), so that the movement of the retainer to the inner diameter side is restricted and rollers and the retainer can be prevented from dropping off.
    Type: Application
    Filed: November 9, 2012
    Publication date: November 21, 2013
    Inventors: Shinji OISHI, Haruki YAMADA, Akihiko KATAYAMA
  • Publication number: 20130308889
    Abstract: A cylindrical roller bearing includes an annular outer race, an annular inner race, a plurality of rollers captured between the inner race and the outer race and a cage operatively connecting together the plurality of rollers for rotating and revolving motion of the rollers between the inner and the outer races. The inner race has an enlarged inner diameter and a reduced thickness relative to the radial loads to be supported.
    Type: Application
    Filed: February 8, 2012
    Publication date: November 21, 2013
    Inventor: Carlos Alfredo Vallejo Gordon
  • Patent number: 8585299
    Abstract: A bearing arrangement is provided having a shaft (1) with a bearing journal (2, 3), and a needle bearing (9) which is arranged thereon and has a cage (16) and needle rollers (11) accommodated in the latter. The bearing journal is provided with a hardened and precision-machined inner raceway (10) for the needle rollers and steps back radially in relation to axial shoulders (12, 13) of adjacent shaft sections (4, 5, 6, 7), and the axial shoulders serve as run-on surfaces for the axial end sides (14, 15) of the cage fitted between the axial shoulders. In this case, relief grooves (17, 18) are provided, with the relief grooves extending on both sides of the inner raceway and each being dimensioned in such a manner that, over the entire circumferential region of the axial shoulders, the axial distance (D) thereof from each other is significantly larger than the inner raceway width (B1) existing therebetween.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: November 19, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Stefan Hess, Peter Solfrank, Patrick Ullmann, Alexander Kern
  • Publication number: 20130294717
    Abstract: A roller bearing for a shaft that has a cylindrical peripheral surface, the bearing including a race (12) to be fitted onto the shaft, and roller bodies (16) arranged to roll on the race (12), the race (12) having a polygonal internal cross-section, so that it engages the peripheral surface of the shaft only in the vicinity of the center of each side (28) of the polygon.
    Type: Application
    Filed: September 29, 2011
    Publication date: November 7, 2013
    Applicant: ROLLAX GMBH & CO. KG
    Inventors: Jörg Schwarzbich, Thomas Ullrich
  • Publication number: 20130223783
    Abstract: The turning bearing has a separator whose leading and trailing sides are concaved to fit over circular rolling surfaces of the rollers to provide concavities where concaved surfaces lying either in parallel with and in perpendicular to the axis of the roller. The rollers fit in the separator in either of two different directions. The separator can be easier installed into the raceway through a loading hole without the posture of the separator in mind. The separator has a quadrilateral in a transverse cross-section perpendicular to a traveling direction of the separator of which a peripheral surface is in opposition to the outer ring and the inner ring. The separator has a center through-hole. The concaved surfaces in the separator are contoured in arced or curved profiles and bulge gradually closer to a circular edge of the through-hole to form arcing bulges at bottoms of the curved surfaces.
    Type: Application
    Filed: January 18, 2013
    Publication date: August 29, 2013
    Applicant: NIPPON THOMPSON CO., LTD.
    Inventor: Nippon Thompson CO., LTD.
  • Patent number: 8511904
    Abstract: A ready-to-install needle bearing including a thin-walled outer ring (1) that is shaped without cutting and is provided with radially inwardly-facing stop rims (2) on both sides. Needle rollers (7) roll between the stop rims (2) on an associated external raceway (9). The inventive needle bearing is characterized in that an associated internal raceway (10) is formed by a thin-walled inner ring (3) which is shaped without cutting and is fitted with radially outwardly-facing stop rims (4) on both sides. The needle rollers (7) roll in a cageless manner or are disposed in a cage such that a captive ready-to-install needle bearing unit is created by using a positive gripping action, thus dispensing with the need for a part that is to be mounted having to act as a raceway.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: August 20, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Erich Lunz
  • Publication number: 20130209006
    Abstract: Disclosed is a bearing component having at least one layer having a high hardness and a high current insulation property, the layer comprising a nonconductive oxide layer selected from the group comprising an Al2O3 layer, a TaO layer, an SiO2 layer, a mixed layer comprising two or more of the foregoing oxides, a multilayer structure comprising alternating layers of two or more of the foregoing oxides and a DLC layer such as a ta-C layer, there being at least one ALD layer comprising at least one layer of a material deposited by an ALD (atomic layer deposition) process on the at least one layer having a high hardness and a high current insulation property, the ALD layer itself having a high current insulation property and comprising a material or layer structure selected from the said group of materials.
    Type: Application
    Filed: December 27, 2012
    Publication date: August 15, 2013
    Applicants: Hauzer Techno Coating BV, Picosun Oy, Schaeffler AG
    Inventors: Hauzer Techno Coating BV, Schaeffler AG, Picosun Oy
  • Publication number: 20130202239
    Abstract: A loading hole made in either of an outer ring and an inner ring is provided in two rows of raceways defined between the outer ring and the inner ring, one to each raceway. The loading hole is set out of the guide surface and, therefore there is no fear that a closure fitted in the loading hole causes any obstacle to the rolling movement of the rollers. The loading hole extends radially of the bearing at a location that a center line of the loading hole lies set-off or biased from a center of the roller. An opening edge of the loading hole is exposed to the raceway in a location out of the guide surface, so that the rollers are allowed to roll smoothly without touching with the innermost edge of the closure.
    Type: Application
    Filed: February 6, 2013
    Publication date: August 8, 2013
    Applicant: NIPPON THOMPSON CO., LTD.
    Inventor: NIPPON THOMSON CO., LTD.
  • Publication number: 20130202240
    Abstract: An effective contact length in race surfaces formed on grooved races cut in an outer ring and an inner ring is made as greater as permitted to improve the load-carrying capacity, and correspondingly guide parts born against axially opposite ends of a roller are made as less as possible in width to reduce frictional contact resistance applied to the axially opposite ends of the roller, thereby preventing a skew of the roller. An inside circular surface on the outer ring is staggered or different in level on opposite sides of a outside grooved race to make greater the race surface than an effective contact length of circular rolling surfaces of the rollers and correspondingly less the guide part in width than the race surface.
    Type: Application
    Filed: February 6, 2013
    Publication date: August 8, 2013
    Applicant: NIPPON THOMPSON CO., LTD.
    Inventor: NIPPON THOMPSON CO., LTD.
  • Publication number: 20130195626
    Abstract: A clutch bearing (34) for a transportation refrigeration unit includes one or more rolling elements (38) supportive of one or more components of an electromagnetic clutch for a transportation refrigeration unit, and a plurality of bearing races (36) configured to retain the one or more rolling elements. The bearing races include a coating of thin dense chromium to reduce corrosion and/or damage of the clutch bearing. A transportation refrigeration unit includes a power source (12) and a blower (32) of the transportation refrigeration unit. An electromagnetic clutch (14) is operably connected to the power source and the blower (132) and includes a rotor (16) positioned at a central axis and an armature (18) positioned at the central axis and having an axial air gap (22) to the rotor when the clutch is in a disengaged position. A clutch bearing is located at the central axis and is supportive of the rotor.
    Type: Application
    Filed: September 28, 2011
    Publication date: August 1, 2013
    Applicant: Carrier Corporation
    Inventors: Brian Tyler White, David R. Torlai
  • Publication number: 20130182988
    Abstract: The invention relates to a flanged bearing ring produced from a high carbon steel profile bar comprising at least one flash butt welded joint, where the bearing ring is provided with an inner peripheral surface and an outer peripheral surface and where one peripheral surface comprises a raceway for rolling elements, where the bearing ring further comprises a flange adapted for fixing the bearing ring to a mechanical member, where the flange protrudes from the bearing ring in a substantially radial direction. The invention further relates to a method for producing such a homogenous flanged bearing ring from a straight profile bar. The advantage of the invention is that a homogenous flanged bearing ring is obtained in a simple and cost-effective way.
    Type: Application
    Filed: September 22, 2011
    Publication date: July 18, 2013
    Inventor: Patrik Dahlman
  • Patent number: 8485730
    Abstract: 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.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: July 16, 2013
    Assignee: NTN Corporation
    Inventors: Hiroshi Morishita, Takashi Ito, Chikage Akai, Chikara Ohki, Kazuhiro Yagita
  • Publication number: 20130170780
    Abstract: Spherical particles having diameters of 100 ?m or less are projected on a surface of a tapered roller so as to form recesses and protrusions, and abrasive particles are then projected thereon so as to remove the protrusions. The abrasive particles result from adhering 5 mass % diamond grains with an average diameter of 10 ?m on surfaces of 1 mm-diameter rubber particles. As a result, multiple recesses having circular openings of 50 ?m or less are formed on the surface of the tapered roller at intervals of 200 ?m or less. These recesses become moderate oil pools, heightening the oil film formation capability of the roller surface, and thus torque of the tapered roller bearing may be decreased.
    Type: Application
    Filed: February 26, 2013
    Publication date: July 4, 2013
    Applicant: NSK LTD.
    Inventor: NSK, Ltd.
  • Publication number: 20130170778
    Abstract: A bearing assembly includes a first race having a first set recesses disposed on an upper surface thereof. Wherein a first set of bearing elements are disposed within the first set of recesses and the first set of bearing elements extend upwardly from the first set of recesses at an inclination relative to a vertical axis of the first race. A second race having a second set of recesses disposed on an upper surface thereof. A second set of bearing elements are disposed within the second set of recesses and the second set of bearing elements extend upwardly from the second set of recesses at an inclination relative to a vertical axis of the second race.
    Type: Application
    Filed: June 29, 2010
    Publication date: July 4, 2013
    Applicant: Scientific Drilling International, Inc.
    Inventors: James Robbie Higginbotham, Mark Chustz
  • Patent number: 8425123
    Abstract: A radial needle bearing unit for supporting a shaft, which has an outer sleeve with at least one radially inwardly directed rim, and a cage guiding hearing needles. For sealing purposes, a sealing element is disposed in an annular space delimited by the rim and the cage. The sealing element is an outwardly expanding sealing ring made of a polymer material resting radially outwardly against the inner lateral surface of the outer sleeve and radially inwardly against the lateral surface of the shaft, so that a radial/radial seal is formed. The outer sleeve has, at least in one peripheral location, a holding lug which is formed by stamping or cutting and protrudes the lateral surface of the outer sleeve in a spring-loaded manner.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: April 23, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Georg Draser, Martin Gegner, Juergen Weiss
  • Patent number: 8425120
    Abstract: Disclosed herein is an electrolytic erosion preventing insulated rolling bearing and a manufacturing method thereof. In one embodiment, the electrolytic erosion preventing insulated rolling bearing includes an insulating coating being a ceramic coating layer including alumina as the main component and 0.01 to 0.2 percent by weight titanium oxide with the alumina having a particle size ranging from 10 to 50 ?m and average particle size ranging from 15 to 25 ?m.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: April 23, 2013
    Assignee: NSK Ltd.
    Inventors: Katsuhiro Konno, Kenji Kotaki, Takashi Murai, Osamu Fujii, Tetsuo Watanabe, Takayuki Matsushita
  • Patent number: 8424208
    Abstract: Provided is a manufacturing method of an outer ring (3) of a back-to-back arrangement double-row angular ball bearing from a raw material (10) comprising a upsetting (A to B), a backward extrusion process (C to D), a punching (D to E), a rolling (E to F) and a finishing, wherein an outer diameter of a first intermediate material (11a) produced by the upsetting is equal to or smaller than an inside diameter of an inner periphery large diameter portion (18) of the inner circumference of a die (13) used in the backward extrusion process and larger than an inside diameter of an inner periphery small portion (19) of the die (13), and in a condition with the first intermediate material (11a) sitting on the inner periphery inclined portion (20) of the die (13), the intermediate material (11a) is pushed toward a base of the die (13) by a punch (14), to thereby the middle metal material (29) with the highest cleanliness of the raw material (10) is exposed to the two outer ring raceways (2) of the outer ring (3).
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: April 23, 2013
    Assignee: NSK, Ltd.
    Inventors: Kazuto Kobayashi, Hiroshi Koyama
  • Patent number: 8393799
    Abstract: A roller assembly comprises a first race and a second race. The second race is coaxial with the first race and is axially movable relative to the first race. The first and second races are movable between a static axial position and a dynamic axial position relative to one another. The roller assembly includes at least one biasing member that is operative to bias the first and second races from the dynamic axial position toward the static axial position.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: March 12, 2013
    Assignee: The Boeing Company
    Inventor: Bruce A. Dahl
  • Patent number: 8337089
    Abstract: 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 %.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: December 25, 2012
    Assignee: NTN Corporation
    Inventors: Chikara Ohki, Kazuhiro Yagita, Takashi Ito, Hiroshi Morishita
  • Patent number: 8313246
    Abstract: An outer ring for rocking bearing (11a) includes a raceway surface (12a) on the inner diameter side and has flange parts (13a) and (13b) provided by bending both axial ends to the inner diameter side. The flange parts (13a) and (13b) are provided with bent parts (17a) and (17b) axially bent toward the raceway surface (12a) side so as to enfold a retainer arranged on the inner diameter side. Thus, the retainer can be enfolded by the bent parts (17a) and (17b). Therefore, even when the retainer comes to be moved to the inner diameter side of the outer ring for rocking bearing (11a), the retainer is caught by the bent parts (17a) and (17b), so that the movement of the retainer to the inner diameter side is restricted and rollers and the retainer can be prevented from dropping off.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: November 20, 2012
    Assignee: NTN Corporation
    Inventors: Shinji Oishi, Haruki Yamada, Akihiko Katayama
  • Publication number: 20120269476
    Abstract: Provided are a processing method capable of shortening a lead time without the need for carrying out super finishing (mirror grinding), and a bearing manufactured using the processing method. A component of a bearing is finished while chucking the component by a chucking device (10). Hardened steel cutting and grinding are carried out while chucking the component without releasing the chucking by the chucking device (10).
    Type: Application
    Filed: November 19, 2010
    Publication date: October 25, 2012
    Inventors: Shogo Akimoto, Taku Nishiki
  • Patent number: 8292513
    Abstract: Disclosed is a rolling bearing component comprising a metallic support with a spray-compacted metal layer which is applied to the metallic support in a spraying process and is provided with the running surface of the rolling bearing.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: October 23, 2012
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Doris Guenther, Carsten Merklein, Peter Schuster
  • Patent number: 8261897
    Abstract: A freewheel clutch that has sprags, which are located between an inner locking track and an outer locking track and two sliding discs which each feature one inner axis adjacent to the inner locking track, one outer axis adjacent to the outer locking track as well as one middle section which connects the axes, and has an axial inwardly directed bending. The bending extends from the outer axis to the inner axis and preferably features a maximum embossing depth which is lower than the wall thickness of the middle section.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: September 11, 2012
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Tomas Smetana
  • Publication number: 20120207421
    Abstract: An outer ring 6a for a shell-type radial needle bearing having a cylindrical shape with a bottom is achieved for which fatigue life of the bottom plate section 9a and the continuous section between the bottom plate section 9a and the cylindrical section 8a is improved, as well as the anti-corrosion characteristic of the outer ring 6a is improved and the outer ring 6a can be prevented from coming out of the bearing without an increase in cost. After obtaining an intermediate raw material 35 having a cylindrical section and a bottom plate section from a metal raw material, shot peening is performed on the intermediate material 35 to create residual compressive stress in the surface and surface layer section on the outer surface side of the cylindrical section 8a and the bottom plate section 9a such that the residual compressive stress in the surface layer section on the outer surface side is greater than the in the surface layer section on the inner surface side, and from the surface to a depth of 0.
    Type: Application
    Filed: September 22, 2011
    Publication date: August 16, 2012
    Applicant: NSK LTD.
    Inventors: Masato Higuchi, Noriyuki Takeo, Yoshiaki Komura