Patents Assigned to SKF
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Publication number: 20150125104Abstract: A bearing arrangement for a fluid machinery application employing an axially locating bearing. The axially locating bearing includes: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing. Each of the first angular self-aligning contact bearing and the second angular self-aligning contact bearing includes a set of rolling elements arranged in a row and interposed between a respective curved inner raceway and an associated curved outer raceway. Each roller is a symmetrical cylindrically-shaped roller having a curved raceway-contacting surface. Each roller is inclined respective to the axial direction of the shaft by a respective contact angle. The rollers support an axial force and a radial force. The axially non-locating bearing position is arranged spaced apart from the axially locating bearing position, as seen in the axial direction. Examples of fluid machinery applications include: a wind turbine, water turbine or a propulsion turbine.Type: ApplicationFiled: November 7, 2014Publication date: May 7, 2015Applicant: AKTIEBOLAGET SKFInventors: Jonas KULLIN, Juergen REICHERT, Hans WENDEBERG
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Patent number: 9022665Abstract: 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 inner and outer portions, facing one another and a lateral portion extending transversally between the inner and outer portions and connected to said portions. The inner and outer portions delimit together with the lateral portion a pocket configured to receive a contact roller. The pocket is laterally open on the side opposite to the lateral portion.Type: GrantFiled: February 14, 2013Date of Patent: May 5, 2015Assignee: Aktiebolaget SKFInventors: Cyril Bouron, Jean-Baptiste Magny, Pascal Ovize
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Publication number: 20150115547Abstract: A seal for sealing between inner and outer bodies includes a generally annular sealing member having inner and outer circumferential sealing surfaces, at least one of the inner and outer sealing surfaces being sealingly engageable with one of the inner body outer surface and the outer body inner surface. The sealing member further has an interior surface at least partially defining a generally annular interior cavity, an opening extending into the cavity, and at least one locking tab extending from the interior surface and into the cavity. An annular biasing member is disposed within the sealing member cavity and configured to bias the at least one sealing surface generally toward the at least body surface. The biasing member has at least one engagement recess configured to receive at least a portion of the at least one locking tab such that the biasing member is retained within the cavity.Type: ApplicationFiled: October 24, 2013Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: Timothy H. Rushton, Anthony Todd Hagen
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Publication number: 20150114992Abstract: Systems, methods, and apparatus for dispensing a lubricant are provided, in which the apparatus includes a chamber having an inlet through which the lubricant is received and an outlet through which the lubricant is ejected, and a piston movably positioned in the chamber. The apparatus also includes a motor coupled with the piston, and a power source coupled with the motor. The apparatus further includes a switch coupled with the power source and the motor. The apparatus also includes a controller coupled with the switch, so as to control whether the switch is closed or open. The controller is configured to switch the switch open and closed according to a duty cycle, so as to control a speed of the motor.Type: ApplicationFiled: October 31, 2013Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: Kong Guo, Terry C. Peters, Viktor Alekseyev, Americo dos Santos, Jerry Shew
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Publication number: 20150114991Abstract: Systems, methods, and apparatus for dispensing a lubricant are provided, in which, for example, the apparatus includes a chamber having an inlet through which the lubricant is received and an outlet through which the lubricant is ejected. The apparatus also includes a piston movably positioned in the chamber to take lubricant into the chamber and eject it therefrom. The apparatus further includes a sensor configured to take a measurement of a condition related to a force applied to the piston to move the piston in the chamber. The apparatus additionally includes a controller coupled with the sensor so as to receive data related to the measurement from the sensor.Type: ApplicationFiled: October 31, 2013Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: Viktor Alekseyev, Jose Americo Francisco dos Santos, Terry C. Peters, Jerry Shew, Kong Ling Guo
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Publication number: 20150117807Abstract: An outer ring for a rolling-element bearing includes a first region having a first diameter on an outer surface of the outer ring, a second region on the outer surface of the outer ring, the second region having a second diameter larger than the first diameter, a circumferential groove at a boundary between the first region and the second region, and a filler in the groove. The filler is configured such that a temperature compensation ring can be mounted to the outer ring at the first region so that it abuts on an axial end of the second region, the temperature compensation ring having an inner diameter, at least in the region which is disposed over the groove in the radial direction, that corresponds to the outer diameter of the first region.Type: ApplicationFiled: October 22, 2014Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: Rainer Spies, Padelis Katsaros
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Publication number: 20150114972Abstract: A fluid drain may include a fluid reservoir comprising a lower tube inlet that opens into the fluid reservoir, a lower tube at least partially positioned within the lower tube inlet, and an upper tube at least partially positioned within the lower tube. The fluid drain may further include an upper tube clamp having an opening therein, wherein the upper tube is positioned within the opening in the upper tube clamp and the upper tube clamp is configured to remain attached to the upper tube upon removal of the upper tube from the lower tube.Type: ApplicationFiled: October 31, 2013Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: David Mark Allen, Canlong He
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Publication number: 20150121186Abstract: A method for increasing the information density in providing information on a progress of at least one project, comprises providing at least one project related goal and at least one project related information, the project related information being related to the project related goal. The information characterizing the project related goal is arranged in a first cell in one element of the group of the cells of a first row of a table and the cells of a first column of the table and the information characterizing the project related information is arranged in a second cell of the other element of the group. An information cell of the table is colored in a first color when the goal is achieved and in a second, different color when the goal is not achieved.Type: ApplicationFiled: October 24, 2013Publication date: April 30, 2015Applicant: Aktiebolaget SKFInventors: Christian Genheimer, Armin Herbert Emil August Olschewski, Jasper Vennemann
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Publication number: 20150115544Abstract: A seal assembly includes an annular static sealing member disposed within an annular channel in a housing or shaft. An annular dynamic sealing member is disposed coaxially within or about the static member and has a circumferential sealing surface engageable with the shaft or housing. An annular biasing member is disposed radially between the static and dynamic sealing members and is configured to bias the dynamic sealing member radially to maintain engagement of the sealing surface and the shaft or housing. The static member is configured to prevent relative angular displacement between the static and biasing members and the dynamic member is configured to prevent relative angular displacement between the dynamic and biasing members. As such, the dynamic sealing member, the biasing member and the static sealing member angularly displace within the channel as a single unit when torque above a particular magnitude is applied to the dynamic sealing member.Type: ApplicationFiled: October 28, 2013Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: Raymond Lee Chaplin, Tiberio J. Gonzalez, Tyler James Ryther
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Publication number: 20150115696Abstract: A wheel hub bearing unit including a plurality of rolling bodies disposed between annular elements. One of the annular elements is a rotating element that includes a spindle on a side facing the outboard side of the vehicle having a mounting flange adapted to receive a vehicle wheel. A frontal surface of the mounting flange is covered by a layer of UV photopolimerizable synthetic plastic material having a predetermined thickness deposited on the frontal surface of the flange in the non-polimerized state by a mixed air spraying nozzle, by rotating the wheel hub bearing unit about a symmetry axis thereof with the nozzle arranged at a radial distance from a peripherally outer edge of the flange, and has a spraying axis which forms, with the symmetry axis, an angle from 20° to 80°; the synthetic plastic material being sprayed by the nozzle at a temperature higher than the room temperature.Type: ApplicationFiled: October 24, 2014Publication date: April 30, 2015Applicant: AKTIEBOLAGET SKFInventors: Paolo Baratti, Andrea Serafini
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Patent number: 9016949Abstract: A bearing unit having an axis of rotation and provided with a stationary ring and a rotatable ring arranged coaxially with respect to one another, a magnetic encoder fixed onto the inner ring and extending in front of an annular surface of the stationary ring; and a protective cover mounted on the external ring to protect the encoder and close off a space defined between the two rings; an annular channel being formed in the stationary ring and sealing means being arranged between the side wall and the axial lug within the annular channel so as to seal the cover and prevent the infiltration of impurities between the cover and the axial lug.Type: GrantFiled: January 8, 2014Date of Patent: April 28, 2015Assignee: Aktiebolaget SKFInventors: Paolo Baratti, Andrea Serafini
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Patent number: 9016951Abstract: A hub bearing assembly includes a hub made of lightweight metallic material and forming a cylindrical portion, on which a tubular inner ring providing a raceway is mounted; a second inner ring is fixed on the first tubular inner ring and provides a second raceway; a cylindrical interstice is formed between the cylindrical portion of the hub and the tubular inner ring and contains a structural adhesive which integrally joins the hub to the first tubular inner ring.Type: GrantFiled: January 13, 2014Date of Patent: April 28, 2015Assignee: Aktiebolaget SKFInventors: Wijbe Buising, Alessandro Garrone, Cornelius Petrus Antonius Vissers
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Patent number: 9018944Abstract: A sensor arrangement is operative to sense a relative kinematic state of a magnet (110) and a Hall-effect sensor (202) with respect to each other. The Hall-effect sensor has a Hall plate (204) and is accommodated in a surface-mount device. The magnet is configured for generating a magnetic field having an orientation primarily parallel to the Hall plate. The sensor arrangement comprises magnetic-field collecting means (206) for changing the orientation of the magnetic field to be primarily perpendicular to the Hall plate.Type: GrantFiled: July 15, 2009Date of Patent: April 28, 2015Assignee: Aktiebolaget SKFInventor: Hendrik Anne Mol
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Publication number: 20150108826Abstract: A hub for a motor vehicle wheel provides a cylindrical portion that extends in an axial direction, and a flange extending in a radially outer direction from an axially outer end of the cylindrical portion. The hub includes a core of metallic material which extends into the cylindrical portion and in the flange of the hub, and a covering body of plastic material applied over the core.Type: ApplicationFiled: October 17, 2014Publication date: April 23, 2015Applicant: Aktiebolaget SKFInventors: Aurelio Nervo, Davide Antonio Olivieri, Laura Sguotti
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Publication number: 20150110434Abstract: The invention relates to a pinion bearing arrangement of a gearbox for a vehicle or aircraft, providing at least one roller bearing. At least one of the roller bearings is a ball bearing, having an inner ring and an outer ring, wherein both rings have raceways for balls being located between the rings. To ensure a sufficient lifetime of the roller bearings the invention includes that at least one of the rings is made from a ball bearing steel produced by a powder metallurgical process using a powder metallurgy component including 0.5 to 2.0 weight-% C, a maximum of 0.035 weight-% S, 3.0 to 5.0 weight-% Cr, 1.0 to 4.0 weight-% V, 1.0 to 12.0 weight-% W and 2.0 to 12.0 weight-% Mo, wherein at least one raceway has a radius (rI/O) and the balls have a diameter (DB) which fulfill the equation: rI/O/DB>0.53.Type: ApplicationFiled: March 15, 2012Publication date: April 23, 2015Applicant: Aktiebolaget SKFInventors: Jeroen Wensing, Ian Peverill, Paul Meaney
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Patent number: 9010741Abstract: The suspension bump stop device comprises a rolling bearing (44) that forms an axial bump stop, equipped with an upper ring (46), with a lower ring (48) and with a plurality of rolling elements positioned between the rings, the upper and lower rings being supported respectively by an upper cup (40) and a lower cup (42), the lower cup forming a bearing means for a suspension spring (18), at least one sealing lip being provided on one of the cups so that it bears against a bearing surface portion of the other cup. The bearing surface portion is substantially cylindrical, the sealing lip being directed downwards away from the rolling bearing and bearing with radial interference against the said surface portion, the said substantially cylindrical surface portion being connected towards the top to a shoulder against which the lip can bear if the two cups become radially eccentric relative to one another.Type: GrantFiled: July 29, 2009Date of Patent: April 21, 2015Assignee: Aktiebolaget SKFInventors: Samuel Viault, Yves-André Liverato, Cédric Brulard, Guy Heck
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Patent number: 9012819Abstract: Improved induction heating of a rolling bearing without the risk of damaging or blocking the bearing is achieved by controlling the heating cycle as a function of the temperature difference between the inner and outer bearing rings and/or dividing the heating cycle into different portions using different power combinations of at least two induction coils.Type: GrantFiled: September 30, 2008Date of Patent: April 21, 2015Assignee: Aktiebolaget SKFInventors: Sébastien David, Sylvain Humbert
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Patent number: 9011010Abstract: Wind turbine blade pitch bearing device (1) adapted for rotational support of a turbine blade (9), having a first bearing unit (4, 5) and a second bearing unit (6, 7) coaxial to the first bearing unit. The first bearing unit (4, 5) and the second bearing unit (6, 7) are of different bearing types. By using two different bearing types, one bearing can be optimized for small and quick rotations and the other type can be optimized for larger and slower rotations.Type: GrantFiled: February 4, 2011Date of Patent: April 21, 2015Assignee: Aktiebolaget SKFInventors: Thomas G. Mueller, Adam V. C. Reedman, Eric L. Brubaker
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Patent number: 9011016Abstract: Rolling bearing cage (5) for an electric steering system of a motor vehicle, designed to ensure the circumferential spacing of the balls (4), comprising a plurality of first sockets (8) provided with means (8a) for axially retaining the cage (5) on a ball (4) and a plurality of second sockets (9) without means for axially retaining the cage (5) on a ball (4). Each of the first sockets (8), with a ball (4) housed in the first corresponding socket (8), has a first axial clearance, a first radial clearance and a first circumferential clearance (J1c) and each of the second sockets (9), with a ball (4) housed in the second corresponding socket (9), has a second axial clearance, a second radial clearance and a second circumferential clearance (J2c).Type: GrantFiled: July 9, 2013Date of Patent: April 21, 2015Assignee: Aktiebolaget SKFInventors: Thierry Adane, Thomas Perrotin, Laurent Varnoux
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Patent number: 9010514Abstract: The clutch release bearing device comprising a bearing 12 provided with a non-rotating ring 18, a rotating ring 20 and at least one row of rolling elements 22 arranged between the rings, and a wear ring 44 arranged on the rotating ring and capable of coming into contact with a clutch mechanism diaphragm, the wear ring 44 comprising at least one ball joint 84 bearing against a guide portion 42; 92 of the rotating ring and of which the axis 90 may be angularly tilted relative to the axis 14 of the bearing. The wear ring 44 is provided with a guide portion 80 comprising an internal surface in contact with an external bearing surface of the rotating ring, the ball joint 84 and joining portions 86; 94 capable of permitting angular tilting of the ball joint relative to the guide portion.Type: GrantFiled: September 20, 2010Date of Patent: April 21, 2015Assignee: Aktiebolaget SKFInventor: Benoit Arnault