Patents Assigned to SKF
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Assembly comprising a radially intermediate joint and corresponding method of joining two components
Patent number: 9415633Abstract: An assembly includes a first component joined to a second component by an intermediate joint. The first component has a first joining surface arranged coaxially and spaced in a juxtaposition around a second joining surface of the second component such that a groove is defined between the first and second joining surfaces. One of the first and second joining surfaces includes a concave portion and the other of the first and second joining surfaces has a convex portion radially opposite the concave portion, and the groove is formed by the convex and concave portions. The intermediate joint is formed by an insert ring pressed into the groove and deformed such that material of the insert ring fills the concave portion and surrounds the convex portion, and this locks the first and second components relative to each other in both axial directions.Type: GrantFiled: May 28, 2010Date of Patent: August 16, 2016Assignee: AKTIEBOLAGET SKFInventors: John van de Sanden, Cornelius Petrus Antonius Vissers, Victor Haans, Maarten Noordman -
Publication number: 20160230868Abstract: A mechanical system forming a cam follower or a rocker arm. The mechanical system includes a support element, a pin extending between two opposite ends along a first axis and supported by the support element, and a roller mounted on the pin, movable in rotation relative to the pin around the first axis and adapted to roll on a cam The support element includes a hollow cylindrical wall delimiting a cavity in which the pin and the roller are housed. The wall has two edges perpendicular to the first axis, wherein the two edges are joined together.Type: ApplicationFiled: January 29, 2016Publication date: August 11, 2016Applicant: Aktiebolaget SKFInventor: François CHAMPALOU
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Publication number: 20160230610Abstract: A cam follower, comprising: a tappet which includes two flanges provided with opposite holes centered on a transverse axis; a pin extending along the transverse axis between two opposite ends received in the opposite holes; and a roller movable in rotation relative to the pin around the transverse axis and adapted to roll on a cam. Each of the opposite holes is provided with: an open portion for mounting the pin by translation in a first direction perpendicular to the transverse axis, a cylindrical portion for supporting the pin along the first direction and a plane portion for retaining the pin along the transverse axis during transport and mounting of the cam follower. A method includes steps for manufacturing such a cam follower.Type: ApplicationFiled: January 25, 2016Publication date: August 11, 2016Applicant: Aktiebolaget SKFInventors: Nicolas Berruet, François Champalou, Richard Corbett, Beoît Hauvespre, Guillaume Jouanno, Samuel Viault
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Patent number: 9410657Abstract: An adjustable chock for levelling and anchoring a machine to a foundation. The chock comprises a base element, a center element and a spherical washer, each is rotationally symmetric about a center axis. The center element is axially translational relative to the base element. The base element or the center element includes a mating surface for receiving the spherical washer. The chock has a center through hole for receiving an anchor bolt. The base element comprises an hydraulic connection point and a channel for hydraulic fluid. The channel is in connection with a chamber enclosed between surfaces of the center element and the base element, wherein in use, filling the chamber with hydraulic fluid exerts an axial pressure on the center element, causing an axial translation of the center element relative to the base element.Type: GrantFiled: June 4, 2013Date of Patent: August 9, 2016Assignee: AKTIEBOLAGET SKFInventors: Dick Vogelaar, Marco Westerman
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Patent number: 9410580Abstract: A mechanical system comprising at least one moving component and a lubricant. The mechanical system also comprises a plurality of at least one type of microcapsule consisting of a shell, which, under the effect of a variation of a given characteristic physical parameter of the mechanical system, is capable of releasing particles. The dispersion of the particles is identifiable by a system located external to the mechanical system.Type: GrantFiled: May 4, 2015Date of Patent: August 9, 2016Assignee: AKTIEBOLAGET SKFInventors: Frank Berens, Laurent Varnoux, Olivier Verbe
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Patent number: 9410579Abstract: A cage for a rolling bearing including a plurality of cage segments is provided. Each segment has a first set of pockets for a first set of rollers, and a second set of pockets for a second set of rollers. The axes of the pockets of the first set of pockets are parallel with each other and the axes of the pockets of the second set of pockets are parallel with each other.Type: GrantFiled: April 21, 2014Date of Patent: August 9, 2016Assignee: AKTIEBOLAGET SKFInventors: Cyril Bouron, Jean-Baptiste Magny, Pascal Ovize, Pascal Vioux
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Patent number: 9410555Abstract: A sealing assembly includes a seal support having a support ring made from an elastomeric material, at least one seal element having a ring made from a polymer material, and an abutment ring against which a radial portion of the seal element axially abuts. The seal element is connected in a materially-bonded manner to the support ring along a first radially outer portion of the seal element, and the seal element axially abuts on the abutment ring along a second radially inner portion of the seal element. The seal element and the abutment ring are free of any connection along the second radially inner portion of the seal element.Type: GrantFiled: August 4, 2014Date of Patent: August 9, 2016Assignee: AKTIEBOLAGET SKFInventors: Helmut Benedix, Juergen Kurth, Willy Seewald, Roland Worsley
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Publication number: 20160226332Abstract: A method of protecting ferromagnetic lamination stacks of a component of an electric machine, comprises the following steps: creating a component module by arranging a laminations stack of ferromagnetic sheets into a housing, (b) protecting locations of the component module where coating is unwanted, (c) inserting the component module into a hermetic chamber receiving an ionized gas, (d) polarizing the component module to submit a fixed electric potential to the component module, (e) depositing a thin layer of protective coating on the laminations stack of ferromagnetic sheets through a method of Plasma Enhanced Chemical Vapor Deposition (PECVD) at a temperature lower than 150° C., (f) monitoring the deposition homogeneity and deposition thickness of the thin layer of protective coating until desired thickness, and (g) rectifying the surface of the thin layer of protective coating to have a uniform protective layer.Type: ApplicationFiled: January 25, 2016Publication date: August 4, 2016Applicant: SKF Magnetic MechatronicsInventors: Yvon BAUCÉ, Eduardo CARRASCO, Erwan SALAHUN
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Publication number: 20160224019Abstract: A system for mounting an annular component on a shaft, comprising (a) a hydraulic nut having an annular coaxial cavity and a ring-like piston, displaceable within the cavity; (b) a displacement sensor for providing a displacement signal indicating the axial displacement of the piston within the cavity; (c) a wireless displacement transmitter for transmitting the displacement signal; (d) a pressure sensor for providing a pressure signal indicating a pressure within the cavity; (e) a wireless pressure transmitter for transmitting the pressure signal; (f) a pump arranged to pump fluid into the cavity; and (g) a remote control device having a communications device arranged to receive transmitted pressure and displacement signals, wherein the remote control device is arranged to output control information for controlling the pump.Type: ApplicationFiled: January 25, 2016Publication date: August 4, 2016Applicant: Aktiebolaget SKFInventors: Sebastien DAVID, Mark ELY
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Publication number: 20160223069Abstract: A gear assembly includes a housing element, at least one gearbox shaft disposed in the housing element for rotation about an axis of rotation, and a brake element. The gearbox shaft is concentrically connected to the brake element, and the brake element is mounted in the housing element and secured against rotation with respect to the housing element. The brake element includes at least two projecting bodies radially spaced from the axis of rotation, and the housing element includes at least four attachment locations. The at least two projecting bodies are connectable to at least two of the at least four attachment locations of the housing element, and the at least two projecting bodies are securable to a first set of the at least four attachment locations or to a second set of the at least four attachment locations, the second set being different than the first set.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicant: Aktiebolaget SKFInventors: Enrico Di Stefano, Martin Voegelin
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Patent number: 9407112Abstract: An apparatus (100) comprises a wireless sensor system (102) with electronic circuitry (104) and a power supply (106) for powering the electronic circuitry. The power supply comprises a primary cell (108) and an energy scavenger (110). The energy scavenger scavenges ambient energy and converts the scavenged ambient energy into electric energy. The sensor system is configured for having the primary cell power the electronic circuitry when the energy scavenger is inactive. The system is configured for performing at least one of having the energy scavenger power the electronic circuitry via the primary cell when the energy scavenger is active, using a capacitance of the primary cell as a buffer for the electric energy; and having the energy scavenger recharge the primary cell.Type: GrantFiled: November 18, 2009Date of Patent: August 2, 2016Assignee: AKTIEBOLAGET SKFInventors: Florin Tatar, Frank De Wit
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Patent number: 9403405Abstract: A sealing assembly including at least one first annular shield having a sleeve portion integral in use with a rotating member and a flange portion, which radially and overhangingly extends from the sleeve portion. Preferably, a second annular shield is arranged in front of the first shield with the interposition of an annular seal; wherein the sleeve portion of the first shield is delimited by a conic-truncated lateral mounting surface having a tapering facing so as to have a greater diameter arranged on the side of the flange portion and intended to couple in use with a mounting seat of the rotating member formed by a shallow recess delimited by a conic-truncated bottom wall having the same tapering as the lateral mounting surface and by an axial shoulder which is arranged on the side opposite to the flange portion.Type: GrantFiled: December 1, 2014Date of Patent: August 2, 2016Assignee: AKTIEBOLAGET SKFInventors: Giorgio Barberis, Daniele Duch, Fausto Morello, Maria Concetta Vulpio
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Publication number: 20160215824Abstract: A sealing arrangement for sealing a first chamber against a second chamber, the sealing arrangement being located between a first machine element and a second machine element. A relative movement occurs between the two machine elements. The sealing arrangement comprises a sealing element which is equipped with at least one sealing lip. The sealing lip(s) is/are held by the sealing element and is/are fixed by the sealing element at one of the machine elements. The sealing lip(s) is/are in sliding contact with the other machine element. The sealing arrangement comprises a lip element that is fixed with one of the machine elements and is in sliding contact with the other machine element. The lip element comprises a conductive element for establishing electrical conductivity of the lip element, so that electrical conductivity is established between the two machine elements by the lip element in an effective an economical manner.Type: ApplicationFiled: January 22, 2016Publication date: July 28, 2016Applicant: Aktiebolaget SKFInventors: Alain GEZAULT, Juergen KURTH
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Publication number: 20160214432Abstract: A wheel bearing unit includes a wheel hub, a first rolling-element bearing, and a fastener assembly, and the fastener assembly is formed separately from the wheel hub and is spaced from an axial end of the wheel hub. The fastener assembly secures at least one component of the rolling-element bearing against falling out of the wheel hub away from a center of mass of the wheel bearing unit, and the fastener assembly contacts the wheel hub.Type: ApplicationFiled: January 15, 2016Publication date: July 28, 2016Applicant: Aktiebolaget SKFInventors: Rico Dittmar, Achim Mueller, Volker Wendt
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Publication number: 20160215823Abstract: A rolling-element bearing cage includes a plurality of cage segments, each cage segment including at least two adjacent receiving pockets, each receiving pocket being delimited by a front cage bridge having a front running surface for contacting a rolling element and a rear cage bridge having a rear running surface for contacting the rolling element. The front running surface and the rear running surface of at least one of the at least two adjacent receiving pockets are asymmetric relative to a center plane that divides the receiving pocket.Type: ApplicationFiled: January 25, 2016Publication date: July 28, 2016Applicant: Aktiebolaget SKFInventor: Albrecht Nestle
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Publication number: 20160215873Abstract: A driveline configured to connect a wind turbine rotor and a wind turbine generator has a planetary gear unit having a planet carrier rotatably supported relative to a housing part by at least one rolling-element bearing. The rolling-element bearing includes at least one inner ring and least one outer ring, and a plurality of rolling elements are disposed between the at least one inner ring and the at least one outer ring. The rolling element bearing further includes a spacer element disposed between adjacent pairs of the plurality of rolling elements, the spacer elements each having first and second running surfaces for guiding first and second ones of the plurality of rolling elements, and, apart from the spacer elements, a region between the bearing rings includes no cage elements.Type: ApplicationFiled: January 25, 2016Publication date: July 28, 2016Applicant: Aktiebolaget SKFInventor: Edgar Pickel
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Patent number: 9400013Abstract: A bearing liner comprising a fabric impregnated with a binder, the fabric comprising: (a) a bearing element contact surface comprising lubricating fibers and (b) structural fibers supporting the bearing element contact surface, wherein at least some of the structural fibers include a structural component and a lubricating component.Type: GrantFiled: June 12, 2015Date of Patent: July 26, 2016Assignees: AKTIEBOLAGET SKF, SKF AEROSPACE FRANCE S.A.S.Inventors: Andrew Bell, Michael Colton, Camille Dayot, Noemie Peron
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Patent number: 9400084Abstract: A lubrication device is provided comprising a lubricant container (1) for containing a lubricant, an outlet opening and an adjustable release mechanism. The outlet opening is provided at a first end of the lubricant container (1) for releasing the lubricant. The adjustable release mechanism comprises, at a second end of the lubricant container (1), an insert (5) which is rotatable relative to the lubricant container (1) for setting a release rate of the lubricant. The lubrication device (1) further comprises a protective cap (6) comprising a hard cover (7). The hard cover (7) covers the insert (5) and the second end of the lubricant container (1). The hard cover (7) has a smooth outer surface and an inner surface comprising engaging means (9) for engaging with the insert (5), such that the protective cap (6) is rotatable together with the insert.Type: GrantFiled: July 20, 2011Date of Patent: July 26, 2016Assignee: AKTIEBOLAGET SKFInventors: Alain Noordover, Guus Willems
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Patent number: 9399373Abstract: Arrangement including a portion of a radially outer lateral surface of an inner ring of wheel hub having an annular step formed on a constant velocity joint. The step is adapted to receive a first shield, a flange portion that radially extends to protrude towards an outer ring of a wheel hub, in front of a flange portion of a second shield, from a first end of a sleeve portion of the first shield facing on the side opposite of the constant velocity joint and axially protrudes from the inner ring and towards the joint, defining a tubular element arranged straddling wheel hub and an outer ring of the constant velocity joint, having an opposite second end, supporting an annular seal; an annular signal generating insert covers a face of the flange portion, wherein a radially inner annular part of face defines a thrust shoulder for mounting the first shield.Type: GrantFiled: June 18, 2014Date of Patent: July 26, 2016Assignee: AKTIEBOLAGET SKFInventors: Daniele Duch, Fausto Morello
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Publication number: 20160208983Abstract: A lubrication system comprising a motor, a positive displacement pump driven by the motor, a lubricant container in fluid communication with the positive displacement pump and at least one lubricant outlet in fluid communication with the lubricant container. The positive displacement pump is arranged to carry out at least one discharge stroke to dispense lubricant from the at least one lubricant outlet when the lubrication system is in use. The lubrication system also comprises a control unit that is arranged to determine an amount of lubricant that is dispensed from the lubricant container via the at least one lubricant outlet when the lubrication system is in use. The control unit is arranged to monitor current supplied to the motor to obtain a motor current signal, and to determine a number of the discharge strokes from the motor current signal.Type: ApplicationFiled: January 14, 2016Publication date: July 21, 2016Applicant: Osakeyhtiö SKF AktiebolagInventor: Risto MOILANEN