Patents Assigned to SKF
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Patent number: 9816556Abstract: Rolling bearing (1) comprising an inner ring (3), an outer ring (2), at least one row of rolling elements which are arranged between raceways formed on the rings (2, 3) and a ring gear (6) that has a circumference of less than 360° and is fixed to one of the rings (2). The ring gear (6) is formed of a single gear segment (7) which has a circumference substantially equal to the circumference of the ring gear (6) and is provided on its inner or outer peripheral surface with a plurality of meshing means (7b) and fixed only to one of either the inner or outer rings (3) of the rolling bearing (1).Type: GrantFiled: October 22, 2013Date of Patent: November 14, 2017Assignee: AKTIEBOLAGET SKFInventors: Jean-Baptiste Noirot, Jean-Baptiste Magny, Cyril Bouron, Pascal Ovize
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Patent number: 9816602Abstract: A lubrication pinion module for applying a lubricant onto a to-be-lubricated element includes a gear element having an inner surface mounted on an outer surface of a bearing element, the bearing element being mountable for rotation on a shaft and having at least one recess on its outer surface, and the gear element including a plurality of radially outwardly facing gear teeth, each of the plurality of gear teeth having first and second flanks, and at least one projection on the gear element inner surface extending into the at least one recess of the bearing element outer surface to form an interference fit with the bearing element such that the gear element rotates conjointly with the bearing element.Type: GrantFiled: May 26, 2015Date of Patent: November 14, 2017Assignee: SKF Lubrication Systems Germany GmbHInventors: Daniel Beisel, Juergen Kreutzkaemper, Andreas Schoenfeld
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Patent number: 9816937Abstract: A system for detecting the presence of water in oil, provides a detection head including a gap in which oil to be monitored may be received; at least a first optical fiber having a first end, optically coupled to transmit light across the gap; a micro electro-opto-mechanical (MEOM) device, the MEOM device comprising a photo-emitter and a photo-detector integrated onto a silicon based substrate, the photo-emitter being optically coupled to transmit light into a second end of the first optical fiber and the photo-detector being arranged to receive transmitted light that has been transmitted across the gap; and an electronic interface to the MEOM device for communicating therewith. A processor may be provided to analyze and compare the respective light signals to determine an amount of water present in the oil. By observing variations in absorption, the presence of water can be identified.Type: GrantFiled: April 20, 2015Date of Patent: November 14, 2017Assignee: AKTIEBOLAGET SKFInventors: Florin Tatar, Jozef Maria Storken
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Publication number: 20170321746Abstract: A bearing ring having an elongated sensor element that runs along at least a part of a surface of the bearing ring. The connection between the sensor element and the bearing ring is established by a metallic metal material connected by material bonding with the bearing ring as well as with the sensor element. To improve the life of the bearing a sensor element is arranged in a groove that is machined in the bearing ring. The groove extends from the surface of the bearing ring. The metallic material includes or is connected with a flat metallic strip. The flat metallic strip is arranged at or in the surface of the bearing ring and covers the groove.Type: ApplicationFiled: December 19, 2014Publication date: November 9, 2017Applicant: Aktiebolaget SKFInventors: Hongyu Yang, Defeng Lang, Jozef Maria Storken
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Publication number: 20170322095Abstract: The invention relates to a load measuring device including a deformable component configured to be deformed under a load to be measured and a sensor assembly attached to a first portion of the deformable component and to a method for determining load using such a sensor assembly. It is proposed that the sensor assembly includes at least one acceleration sensor configured to detect a change in an orientation of the first portion with regard to the direction of gravity and that the deformable component is formed as a seal configured to be in sliding contact with a component configured to rotate in relation to the seal.Type: ApplicationFiled: November 23, 2015Publication date: November 9, 2017Applicant: Aktiebolaget SKFInventors: Defeng Lang, Muhammaad Ahmer, Frank de Wit
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Patent number: 9810262Abstract: A spacer device for roller elements of a toroidal roller bearing includes an inner ring with an inner ring raceway and an outer ring with an outer ring raceway. The toroidal roller bearing allows for axial and angular displacement between the inner ring and the outer ring. The spacer device comprises at least one centering element that is arranged to extend in between adjacent roller elements in a longitudinal direction of the roller elements when the spacer device is in use. The at least one centering element is arranged to make contact with at least one of one point or a region of one of the inner ring raceway or the outer ring raceway when the spacer device is in use, whereby the spacer device is centered on the one of the inner ring raceway or the outer ring raceway.Type: GrantFiled: November 4, 2015Date of Patent: November 7, 2017Assignee: AKTIEBOLAGET SKFInventor: Magnus Kellstrom
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Patent number: 9808887Abstract: An assembly includes a first steel component that is joined to a second steel component by a weld joint formed in a hybrid welding process. At least one of the first and second steel components is a through-hardened bearing steel. In the hybrid welding process, base material of the first and second steel components is melted, and a molten filler material including at least 90% nickel is added. The weld joint is formed after solidification of the molten base material and of the molten filler material. The weld joint has a central solidified portion and a peripheral solidified portion, and the central solidified portion includes at least 80% filler material and the peripheral solidified portion includes no more than 20% filler material.Type: GrantFiled: January 25, 2013Date of Patent: November 7, 2017Assignee: AKTIEBOLAGET SKFInventor: John F. van de Sanden
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Patent number: 9810265Abstract: The bearing provides an outer ring, an inner ring, at least one seal to one of the rings and cooperating with the other ring, and at least one sealing flange. The sealing flange includes a fixing portion to fix the flange to the other ring, an end portion and a connecting portion to connect the fixing portion and end portion. The end portion of the flange is curved and disposed axially facing the connecting portion. The curved end portion and connecting portion define an annular space that open radially towards the other ring. The curved end portion is mounted axially in contact against an outer lateral face of the seal.Type: GrantFiled: May 2, 2016Date of Patent: November 7, 2017Assignee: AKTIEBOLAGET SKFInventors: Elie Aupetitgendre, Benoit Arnault, Laurent Varnoux
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Patent number: 9810308Abstract: A pulley device comprising a rolling bearing including an inner ring defining a central bore, and outer ring and rolling elements mounted between the inner ring and the outer ring, a pulley secured in rotation with the outer ring and provided with a feature for engaging with a transmission member. The pulley additionally includes a screw comprising a head and a shank housed in the central bore of the inner ring, the screw being configured to fix the pulley device to a motor support. The pulley device also comprises a first sleeve arranged between the inner ring and the screw, on the side of the motor support. The first sleeve includes an inner surface that has a frustoconical portion having an increasing diameter toward the head of the screw.Type: GrantFiled: December 7, 2015Date of Patent: November 7, 2017Assignee: AKTIEBOLAGET SKFInventors: Claude Quincay, Mickael Cousinery
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Patent number: 9810266Abstract: A bearing having an inner ring, an outer ring, and at least one seal arranged between the rings. The bearing including a protective cover that delimits an annular space into which the seal extends and provides an outer annular portion and at least one inner portion disposed radially facing and at a distance from one another, and a connecting annular portion linking the outer annular portion and the inner portion; and at least one means for fixing the protective cover onto the inner ring, the fixing means passing through the outer and inner portions of the protective cover and cooperating with the inner ring.Type: GrantFiled: March 9, 2016Date of Patent: November 7, 2017Assignee: AKTIEBOLAGET SKFInventor: Bruno Capoldi
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Patent number: 9803618Abstract: The present invention relates to a system configured to monitor a condition of a rotating system comprising a main bearing, the monitoring arrangement having a first measurement device configured to be arranged at a first location in proximity of the main bearing for determining a first measurement indicative of a current flow at the first location, and a control unit connected to the measurement device. The control unit is further configured to form a first parameter based on the first measurement, match the first parameter with a plurality of predetermined current flow profiles, each of the plurality of predetermined current flow profiles being indicative of a condition of the rotating system, determine, if a matching current flow profile is found, a relevance level for the corresponding condition, and provide an indication of an alarm if the relevance level is above a predetermined threshold.Type: GrantFiled: November 7, 2012Date of Patent: October 31, 2017Assignee: AKTIEBOLAGET SKFInventor: Olle Bankeström
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Publication number: 20170307016Abstract: A bearing cage segment for a rolling-element bearing includes at least one sliding surface on which a surface of at least one rolling element of the rolling-element bearing is rotatable, a first support element, such as an axial projection on an axial side of the cage segment having a radially open radially facing channel, at a first radial position for supporting a first band section of a band clamp during an assembling of the rolling-element bearing, and at least one second support element at a second radial position different from the first radial position for supporting a second band section of the band clamp.Type: ApplicationFiled: September 29, 2015Publication date: October 26, 2017Applicant: Aktiebolaget SKFInventors: Hans-Juergen Friedrich, Alfred Radina, Juergen Reichert, Gerhard Wagner
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Publication number: 20170307677Abstract: Described herein is a system. The system comprises an output cabling comprising an output wire and a return wire. The system also comprises a surge generator configured to provide a voltage pulse at a first rise time down the output cabling to a device under test. The output wire causes a ring at an initiation of the voltage pulse being provided by the surge generator to the device under test. The return wire is a return leg of the output cabling that is in a parallel path to the output wire and is configured to reduce or eliminate the ring.Type: ApplicationFiled: April 25, 2016Publication date: October 26, 2017Applicant: Aktiebolaget SKFInventor: Robert Pray
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Publication number: 20170310222Abstract: Disclosed herein is a flyback system. The flyback system includes a tank circuit comprising a primary side and a secondary side. The flyback system also includes a switching device configured to pulse energy to the tank circuit. The energy is stored in a first side of the tank circuit when the switching device is on. The energy is transferred from the primary side to the secondary side when the switching device is off.Type: ApplicationFiled: April 25, 2016Publication date: October 26, 2017Applicant: Aktiebolaget SKFInventor: Robert Pray
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Patent number: 9797440Abstract: The present disclosure regards a spherical roller bearing having, an outer ring providing at least one inner raceway, an inner ring providing a first and a second outer raceway, a plurality of roller elements arranged in a first and second roller row disposed between the at least one inner raceway and the respective first and second outer raceway, the roller elements further providing axially inner ends. Moreover, the bearing includes a cage for one of guiding and retaining the roller elements in the first and second roller row, the cage including a plurality of cage pockets, wherein one of the roller elements is disposed within each cage pocket, and wherein the cage is roller centered by the axially inner ends.Type: GrantFiled: April 5, 2016Date of Patent: October 24, 2017Assignee: AKTIEBOLAGET SKFInventors: Marcus Loof, Peter James, Lars Stigsjöö
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Patent number: 9797448Abstract: The bearing provides an inner race, an outer race and a wear race that is made of synthetic material and fastened to one of the races. The wear race is overmolded on at least one face of the race. The face includes at least one retention means that is covered with the synthetic material of the wear race and shaped to allow both the axial retention and the angular retention of the wear race relative to the race by shape complementarity with the wear race.Type: GrantFiled: March 22, 2016Date of Patent: October 24, 2017Assignee: AKTIEBOLAGET SKFInventors: Benoit Arnault, Philippe Walter
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Patent number: 9801289Abstract: A module includes a first partial housing and a second partial housing, wherein the first partial housing and the second partial housing together form a recess, a circuit board disposed in the recess; and an encapsulation mass, which closes the recess. A material from which the first partial housing is manufactured and a material from which the second partial housing is manufactured have a difference in thermal expansion coefficients that is at most 10% of the largest value of the two thermal expansion coefficients, the first partial housing includes a sealing structure and the second partial housing includes a counter-sealing structure, and at least one of the sealing structure and the counter-sealing structure is configured to extend into the other of the sealing structure and the counter-sealing structure.Type: GrantFiled: March 30, 2015Date of Patent: October 24, 2017Assignee: AKTIEBOLAGET SKFInventors: Johannes Biegner, Jens Graf, Laurens Verhulst
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Patent number: 9800108Abstract: A permanent magnet rotor shaft assembly for a high speed electrical machine provides a permanent magnet cylindrical core having a longitudinal axis, the cylindrical core being axially compressed by first and second end shafts and being radially compressed by a sleeve made of a non-magnetic high strength metal. At least one of the first and second end shafts includes, facing the cylindrical core, a central shoulder head that cooperates with a mating central recess made in a central portion of a front face of the cylindrical core. An easy concentric alignment of the first and second end shafts with the permanent magnet cylindrical core is allowed while inserting the sleeve and the stiffness of the assembled set is enhanced.Type: GrantFiled: September 29, 2014Date of Patent: October 24, 2017Assignee: SKF MAGNETIC MECHATRONICSInventors: Lateb Ramdane, Joaquim Da Silva
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Patent number: 9796221Abstract: A module for detecting a physical value of a gaseous medium includes a discrete component including a detection section on a surface, the discrete component being configured to detect the physical value of the gaseous medium that acts on the detection section, a supply-line component configured to introduce the gaseous medium to the detection section, a seal in contact with the supply-line component and the surface of the discrete component and configured to fluidly seal the detection section on the surface of the discrete component. The seal includes a seal lip configured to enclose the detection section such that the seal forms a sealing space, the sealing space including the detection section and being separated from an external space by the seal.Type: GrantFiled: March 30, 2015Date of Patent: October 24, 2017Assignee: AKTIEBOLAGET SKFInventors: Johannes Biegner, Jens Graf, Laurens Verhulst
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Patent number: 9797452Abstract: A bearing includes a first ring, a second ring, at least one row of rolling elements arranged in a rolling chamber disposed between the first ring and the second ring, and a cap attached to the first ring that is configured to close the rolling chamber. At least one vibration sensor is attached on the inside of the cap, and the vibration sensor is mounted in a metal block connected to the cap.Type: GrantFiled: April 5, 2016Date of Patent: October 24, 2017Assignee: AKTIEBOLAGET SKFInventors: Nicolaas Simon Willem Den Haak, Koos Welling, Jascha van Pommeren
