Patents Assigned to SKF
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Patent number: 9132539Abstract: A method of forming a seal assembly for sealing a space between a first member having a central axis and an outer surface and a second member having a radially-extending axial surface includes the following steps: providing an elongated elastomeric body and a biasing member, the elongated body having opposing ends and a generally V-shaped groove generally along a length of the body between the two ends; bending the elongated body circumferentially about the first member outer surface; coupling the ends of the elongated body to form an annular seal body; and positioning the biasing member within the groove such that the biasing member exerts a radially-inwardly directed force on the annular seal body so as to substantially prevent relative angular displacement between the seal body and the first member.Type: GrantFiled: June 6, 2014Date of Patent: September 15, 2015Assignee: AKTIEBOLAGET SKFInventors: Yefim Epshetsky, Gregory G. Gildea, Maria Concepcion Martin
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Publication number: 20150252944Abstract: A lubricating system for a bearing includes a lubricant supplying system having a first pumping device configured to introduce a first quantity of lubricant into the bearing, a lubricant disposal system including a second pumping device configured to remove a second quantity of lubricant from the bearing, and a controlling device configured to activate the first pumping device and the second pumping device interdependently with each other.Type: ApplicationFiled: March 4, 2015Publication date: September 10, 2015Applicants: SKF LUBRICATION SYSTEMS GERMANY GMBH, AKTIEBOLAGET SKFInventors: Juergen Kreutzkaemper, Stefan Schuermann, Martin Teupner, Johannes Ullmann
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Patent number: 9127712Abstract: The invention provides a rolling bearing assembly device having an inner race, an outer race, at least one row of rolling elements between the inner race and the outer race, and a sleeve mounted in the bore of the inner race. An annular elastic element is mounted axially between a radial bearing flange of the sleeve and the inner race, the elastic element having an inner bore that is able to bear against an outer surface of the sleeve so as to transmit a force having a radial component in the direction of the interior of the device. The sleeve includes at least one slot extending axially towards the inner race from a lower edge of the radial bearing flange, the lower edge being disposed on the opposite side from the inner race.Type: GrantFiled: April 24, 2014Date of Patent: September 8, 2015Assignee: AKTIEBOLAGET SKFInventors: Sylvain Bussit, Daniel Jansen, Tommy Jullien, Thomas Lepine, Bruno Montboeuf
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Patent number: 9127711Abstract: The invention relates to an angular contact bearing assembly for use in a steering column, comprising at least one rolling bearing comprising conductive components, a sleeve for mounting an conductive inner ring of the at least one rolling bearing on a shaft; and at least one conductive structure creating an electrically conductive contact between at least one of the conductive components of the at least one rolling bearing and the shaft. It is proposed that the sleeve and the conductive structure form an inseparable compound.Type: GrantFiled: July 19, 2013Date of Patent: September 8, 2015Assignee: AKTIEBOLAGET SKFInventors: Sylvain Bussit, Daniel Jansen, Thomas Lepine, Bruno Montboeuf
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Patent number: 9127752Abstract: A method of rotating an output gear at a rotational rate that is slower than an input rotational rate. The input rotation moves a planetary gear in a circular motion about a central axis. A first stage external gear configuration of the planetary gear engages with an internal gear configuration of a stationary gear. The engagement rotates the planetary gear about a concentrically located planetary gear rotational axis. A second stage external gear configuration is rotated by and at a same rate the first stage external gear configuration. The first stage diameter and/or number of teeth differs from the second stage diameter and/or number of teeth. The planetary gear rotation in conjunction with the difference between the first and second stages causes the output gear to rotate respective to the stationary gear. Rotational positioning of the output gear can be monitoring and adjusted by controlling the input rotational rate.Type: GrantFiled: December 18, 2012Date of Patent: September 8, 2015Assignee: AKTIEBOLAGET SKFInventor: Arne Lars Jonas Kullin
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Patent number: 9127717Abstract: The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite first and second portions 11, 12 facing one another and at least a first lateral portion 13 extending transversally between the first and second portions and connected to the portions. The first and second portions and the first lateral portion delimit at least partly a pocket 14 laterally open on the side opposite to the lateral portion 13 and configured to receive at least a contact roller. The first and second portions each comprise an inner contact surface 11a, 12a with an end face of the roller. The spacer further comprises at least one reinforcing beam 16, 17 extending transversally between the first and second portions and connected to the portions.Type: GrantFiled: March 25, 2014Date of Patent: September 8, 2015Assignee: AKTIEBOLAGET SKFInventors: Cyril Bouron, Jean-Baptiste Magny, Pascal Ovize, Pascal Vioux
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Patent number: 9127714Abstract: 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: GrantFiled: October 17, 2013Date of Patent: September 8, 2015Assignee: AKTIEBOLAGET SKFInventors: Roberto Mola, Riccardo Restivo, Gianpiero Scaltriti
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Patent number: 9127718Abstract: A rotation detection set comprises an encoder washer rotatable around a rotation axis, at least one sensor adapted to detect a rotation parameter of the encoder washer through an air gap, a support member for holding the sensor with respect to the rotation axis and a mounting member for immobilizing the support member with respect to a fixed structure. The mounting member is made of one piece of magnetic material and has a first wall located on the same side of the air gap as the encoder washer and a second wall located on the same side of the air gap as the sensor whereas a magnetic body of the encoder washer, the air gap and the sensor are located in a volume defined by the mounting member between the two walls.Type: GrantFiled: December 17, 2010Date of Patent: September 8, 2015Assignee: AKTIEBOLAGET SKFInventors: Florian Barcat, Sylvain Chaussat, Pierrick Maze
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Patent number: 9121458Abstract: A ring of a synchronizing device of a vehicle transmission includes a friction surface that interacts with a friction surface of another ring of the synchronizing device and at least one slide surface configured to slidably seat on an abutment surface of the synchronizing device. At least one curved groove is cut into the at least one slide surface by a whirling milling operation.Type: GrantFiled: March 6, 2010Date of Patent: September 1, 2015Assignee: AKTIEBOLAGET SKFInventors: Alexander Dilje, Norbert Huhn, Ulrich Lang
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Patent number: 9121451Abstract: A tool is disclosed for installing a rolling element into, and removing the rolling element out of, a rolling-element bearing cage. The tool has a gripping element including a clampable jaw disposed on a base. The clampable jaw includes at least two interacting parts. At least one first screw is screwed into a first threaded bore defined in the base. The at least one first screw can be tightened to clamp together the at least two interacting parts of the jaw. A first end of the rod is attached to the base. An impact weight is coupled to the rod and is displaceable along the longitudinal axis of the rod. Further, a stop is fixedly disposed on the rod at a location spaced from the gripping element. The stop is designed to be struck by the impact weight.Type: GrantFiled: January 10, 2013Date of Patent: September 1, 2015Assignee: AKTIEBOLAGET SKFInventor: Ferdinand Schweitzer
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Patent number: 9121505Abstract: A seal assembly seals a first portion of a machine part relative to a second portion of the machine part. The seal assembly includes at least one seal element that contacts the machine part or contacts a component connected with the machine part or that extends with a gap relative to the machine part or to the component connected with the machine part. At least one of the seal element, the machine part and the component connected with the machine part is provided or coated with a material, which has super hydrophobic properties, in the area of the seal element.Type: GrantFiled: March 12, 2010Date of Patent: September 1, 2015Assignee: AKTIEBOLAGET SKFInventors: Jürgen Kurth, Jochen Lorenscheit
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Patent number: 9121441Abstract: A bearing assembly comprises at least one bearing for rotatably supporting a support roller having at least one hollow cylindrical portion. A support element is disposed directly or indirectly between a ring of the at least one bearing and the support roller. The support element comprises first and second hollow-cylindrical segments extending in the axial direction of the support roller. The first and second hollow-cylindrical segments are connected by a ring-shaped segment extending either in the radial direction of the support roller or at an angle to the radial direction.Type: GrantFiled: April 6, 2010Date of Patent: September 1, 2015Assignee: AKTIEBOLAGET SKFInventors: Edgar Pickel, Peter Horling
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Publication number: 20150244239Abstract: A modular motor and magnetic bearing assembly comprising a positioning casing having a plane reference surface, an outer cylindrical reference surface, a central portion provided on an outer face with cooling liquid flow channels, and intermediate portions provided with openings for gaseous fluid entry and exit; a rotor presenting an inner cylindrical reference surface and a plane reference surface; an electric motor; radial magnetic bearings; an axial abutment; and auxiliary mechanical bearings. The modular assembly can then be incorporated in a main casing simply by sliding and it can be connected directly to a functional unit without reworking adjustments of the magnetic bearings.Type: ApplicationFiled: February 20, 2015Publication date: August 27, 2015Applicant: SKF Magnetic MechatronicsInventor: Eduardo CARRASCO
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Publication number: 20150233455Abstract: A roller screw mechanism comprising a screw having an outer threading, a nut arranged around and coaxially to the screw, the nut having an inner threading, and a plurality of mutually identical rollers interposed between the screw and the nut. Each mutually identical roller having an outer threading engaged with the outer and inner threadings of the screw and of the nut. The threading of each roller being prolonged axially at each end by teeth respectively engaged with teeth of two annular gear wheels fixed in an unthreaded part of the bore of the nut. Each of the mutually identical rollers comprises an angular visual positioning feature, making it possible to place the rollers in one of the annular gear wheels with respect to a predetermined reference point of the gear wheel.Type: ApplicationFiled: February 12, 2015Publication date: August 20, 2015Applicant: AKTIEBOLAGET SKFInventors: Christophe MAGNIN, David RICHARDET
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Publication number: 20150233420Abstract: A device includes at least one spherical roller bearing that has at least one split bearing ring, the split bearing ring having first and second parts, the device including at least one preloading unit that is configured to exert a force on at least the first part of the bearing ring and at least one control unit that is configured to change the force. The preloading unit comprises a hydroelastic preloading unit and may include an elastic tube for applying a force against the first part of the bearing ring and a pump for pumping a liquid into the tube.Type: ApplicationFiled: June 19, 2013Publication date: August 20, 2015Applicants: SKF (CHINA) SALES CO LTD, AKTIEBOLAGET SKFInventors: Kjell Bogvad, Hans-Juergen Liesegang, Christian Zang
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Publication number: 20150233456Abstract: A roller screw mechanism comprising a screw having an outer threading; a nut arranged around and coaxially to the screw, the nut having an inner threading; and a plurality of mutually identical rollers interposed between the screw and the nut. Each mutually identical roller having an outer threading engaged with the outer and inner threadings of the screw and of the nut. The threading of each mutually identical roller being prolonged axially at each end by teeth respectively engaged with teeth of two annular crown rings fixed in an unthreaded part of the bore of the nut. Each of the mutually identical rollers comprises an angular visual positioning feature. The nut comprises an angular visual positioning feature making it possible to angularly place the rollers in the crown ring.Type: ApplicationFiled: February 12, 2015Publication date: August 20, 2015Applicant: AKTIEBOLAGET SKFInventors: Christophe MAGNIN, David RICHARDET
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Patent number: 9109460Abstract: A power generating bearing assembly providing a bearing retained by a bearing housing. The bearing housing includes a bearing cooling passage system having at least one integrated liquid cooling passage integrated within the bearing housing. A turbine receiving bore is formed through the bearing housing, penetrating the integrated liquid cooling segment. A turbine assembly is inserted into the turbine receiving bore, positioning a turbine blade subassembly of the turbine assembly within the integrated liquid cooling passage, wherein fluid flowing within the integrated liquid cooling passage causes the blade subassembly to rotate. The rotation of the blade subassembly rotates an electric power generator to create electric power. The turbine assembly can include an electro-magnetic subassembly mounting plate, wherein the turbine subassembly is located on an interior surface of the mounting plate and at least a portion of the power generating portion located on an exterior portion of the mounting plate.Type: GrantFiled: September 27, 2012Date of Patent: August 18, 2015Assignee: AKTIEBOLAGET SKFInventors: Frank Bartl, Andreas Clemens Van Der Ham
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Patent number: 9109966Abstract: A force sensor has an input part, a base part, an intermediate part and a sensor element. The external force to be sensed is applied to the input part. The input part transmits the external force to the base part via the intermediate part. The base part is fixed to a frame of reference and exerts a reaction force on the input part via the intermediate part. The intermediate part deforms as a result of the external force and the reaction force. The deformation of the intermediate part causes the input part to change its position or orientation relative to the base part. The sensor element senses this change and supplies an output signal representative of the change.Type: GrantFiled: June 7, 2011Date of Patent: August 18, 2015Assignee: AKTIEBOLAGET SKFInventor: Johannes Andrianus Maria Duits
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Patent number: 9103733Abstract: A bearing comprises a Bragg grated optical fiber to measure one or more parameters of the bearing such as load, temperature, acceleration/vibration and identification. To be able to fit as many Bragg gratings as possible, the utilization of the corresponding frequency plane output is optimized by having low bandwidth next to large bandwidth sensors in the frequency place. The corresponding physical sensors such as load sensors on a bearing will not be adjacent. Sensors in the loaded zone are giving a high bandwidth output and sensors in the un-loaded zone are giving a low bandwidth output, thus even though these are not physically adjacent, the corresponding frequency areas are adjacent by appropriate grating.Type: GrantFiled: November 26, 2010Date of Patent: August 11, 2015Assignee: AKTIEBOLAGET SKFInventor: Adam Reedman
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Patent number: 9101523Abstract: A table for supporting a recumbent patient includes at least one tabletop unit, at least one ground contact unit for supporting the tabletop unit, a first and at least one second adjustment unit for changing a spacing between the ground contact unit and the tabletop unit, and at least one first guide unit for guiding movement of the tabletop unit relative to a the ground contact unit, where at least a part of the guide unit is disposed between the first and the at least one second adjustment unit.Type: GrantFiled: July 1, 2013Date of Patent: August 11, 2015Assignee: AKTIEBOLAGET SKFInventors: Daniel Greilinger, Marcel Soltermann