Patents Assigned to SKF
-
Publication number: 20130188897Abstract: A rolling element bearing comprises a groove with preferably an indentation in the bottom down the middle of the groove all around the bearing. The groove is to both accommodate a Bragg grated optical fibre and to increase the perceived sensitivity of the optical fibre by weakening the bearing and thereby creating larger deformation for specific loads/vibrations than if the groove was not there.Type: ApplicationFiled: November 26, 2010Publication date: July 25, 2013Applicant: Aktiebolaget SKFInventors: Adam Reedman, Hongyu Yang
-
Publication number: 20130180370Abstract: 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: ApplicationFiled: January 10, 2013Publication date: July 18, 2013Applicant: AKTIEBOLAGET SKFInventor: AKTIEBOLAGET SKF
-
Publication number: 20130184086Abstract: A protective screen mounted on an outer cylindrical surface of a constant-velocity joint and facing towards a sealing device of a rolling-contact bearing which is angularly coupled to the constant-velocity joint for protecting the sealing device and the rolling-contact bearing from the action of external agents; the screen being provided with: an annular wall, which is transverse to an axis (A) of rotation of the constant-velocity joint and is arranged in axial abutment against a side wall of said constant-velocity joint, a central hole, which is made through the annular wall and through which a shaft of the constant-velocity joint passes with play, and a plurality of elastic mounting and centering fins, which are distributed uniformly about the central hole and extend unsupported from the annular wall such that they are coupled to the outer cylindrical surface of the constant-velocity joint.Type: ApplicationFiled: July 17, 2012Publication date: July 18, 2013Applicant: AKKTIEBOLAGET SKFInventors: William Finetti, Dominik Fischer
-
Publication number: 20130181376Abstract: A method including the steps of forming an inner ring of a wheel hub, by joining a spindle and an insert ring fitted onto the spindle, on a side of a first end of the spindle; axially blocking the insert ring on the spindle by plastically deforming the first end of the spindle to form an upset collar therewith, which axially protrudes from the insert ring; and after forming the upset collar, frontally obtaining on the collar, on the side opposite to the insert ring a frontal toothing by means of a single creator tool provided, towards the collar, with a toothing which is complementary to that to be obtained, by impressing onto the collar, in sequence, one or more teeth of the complementary toothing, which have ridges with a rounded profile having a curvature radius (R) varying in the direction of an axis of symmetry (A1) of the tool.Type: ApplicationFiled: July 19, 2012Publication date: July 18, 2013Applicant: AKTIEBOLAGET SKFInventors: Enrico MORELLO, Fulvio Nicastri
-
Publication number: 20130181375Abstract: A method including the steps of forming an inner ring of a wheel hub, by joining a spindle and an insert ring fitted onto the spindle, on a side of a first end of the spindle; axially blocking the insert ring on the spindle by plastically deforming the first end of the spindle that forms an upset collar therewith, which axially protrudes from the insert ring; frontally obtaining on the collar, on the side opposite to the insert ring, a frontal toothing by means of a single creator tool, towards the collar, with a toothing complementary to that to be obtained, by axially impressing onto the collar, in sequence, one or more teeth of the complementary toothing by eccentrically pushing the creator tool against the collar while the creator tool is held substantially coaxial to the wheel hub, thus acting peripherally in sequence on the whole creator tool.Type: ApplicationFiled: July 17, 2012Publication date: July 18, 2013Applicant: AKTIEBOLAGET SKFInventors: Alessandro Ferrero, Enrico Morello, Fulvio Nicastri, Davide Antonio Oliveri
-
Publication number: 20130180310Abstract: An apparatus including rigid plate having a first face and a second face, a plurality of through seats arranged as a circular crown about an axis of symmetry (A), perpendicular to each seat and shaped as a circular crown segment; a plurality of knives carried by the plate, each being axially slidingly guided into a seat, independently of the other knives; each knife has a head which protrudes from the seat from the side of the first face, a prismatic body having an axial length greater than the seat, and a wedge-shaped end, opposite to the head, which protrudes from the second face when the head substantially abuts against the first face; the wedge-shaped ends circumferentially having a first profile, complementary to that of the frontal toothing to be obtained, and the knives can be replaced totally or partially with others having a second profile different from the first profile.Type: ApplicationFiled: July 20, 2012Publication date: July 18, 2013Applicant: AKTIEBOLAGET SKFInventors: Domenico BOSCO, Davide Antonio Olivieri, Marcello Rossi, Cengiz Shevket
-
Publication number: 20130181504Abstract: A method including the steps of forming an inner ring of a wheel hub, by joining a spindle and an insert ring fitted onto the spindle, on the side of a first end of the spindle; axially blocking the insert ring on the spindle by plastically deforming the first end of the spindle so as to form an upset collar therewith, which axially protrudes from the insert ring; and once the step of forming the upset collar has finished, frontally obtaining a frontal toothing; the finished collar has, in the part of the collar which axially protrudes from the ring, a predetermined geometric shape which substantially defines, in the radial section, a scalene triangle having the base facing the upset ring and the vertex opposite the base rounded in shape.Type: ApplicationFiled: July 20, 2012Publication date: July 18, 2013Applicant: AKTIEBOLAGET SKFInventors: Alessandro Ferrero, Fulvio Nicastri, Davide Antonio Olivieri
-
Patent number: 8485731Abstract: A bearing support is configured to retain at least two bearings disposed closely adjacent to each other in a parallel relationship. Each bearing includes a bearing outer ring having a cylindrical outer circumferential surface. The bearing support comprises at least first and second portions that are connected together. The first portion is formed as a component that has cylindrical openings configured to receive or seat the respective bearing outer rings and to surround the entire circumference of the respective bearing outer ring. The second portion is formed as a support plate. A bearing assembly includes the bearing support with a bearing seated in each of the respective cylindrical openings.Type: GrantFiled: September 1, 2009Date of Patent: July 16, 2013Assignee: Aktiebolaget SKFInventors: Berthold Beyfuss, Burkhard Buchheim, Alexander Dilje, Hans-Jürgen Friedrich, Helmut Hauck, Holger Kristandt, Alfred Radina, Jonas Schierling
-
Patent number: 8485734Abstract: This ball bearing (1) forms an axial force transmission member and comprises an inner ring (3) and an outer ring (4), and a single series of balls (6) placed in a rolling chamber between the inner ring (3) and the outer ring (4). A first ring (4), amongst the inner ring (3) and the outer ring (4), forms a travel track (411) in a section of a sphere centered on a geometric point (C4) belonging to an axis of symmetry (X4) of this first ring (4). The first ring (4) supports a seal (11) insulating the rolling chamber relative to the outside. The second ring (3), amongst the inner ring (3) and the outer ring (4), is provided with a sealing zone (314) designed to interact with the seal and in the shape of a section of a sphere centered on a second geometric point (C3) belonging to an axis of symmetry (X3) of the second ring. The radii (R3, R4) of the sections of a sphere are different.Type: GrantFiled: September 15, 2009Date of Patent: July 16, 2013Assignee: Aktiebolaget SKFInventors: Benoit Arnault, Yves-André Liverato, Jacques Charpentier, Sylvain Bussit
-
Patent number: 8485926Abstract: A sealing arrangement used to create a seal between a first (12) part of a chain and a second (14) part of a chain, wherein said second part can at least be pivoted in relation to the first part, exhibiting the following features: a sealing ring (40) with an annular sealing lip (42) for sealing a lubricant area between parts which can be pivoted towards each other, an elastic ring (60) which can be fixed to one of the parts and which can be used to exert pressure on the sealing ring; in addition to a supporting ring (50) which is arranged between the sealing ring and the elastic ring; and link of a chain provided with said sealing arrangement.Type: GrantFiled: June 27, 2005Date of Patent: July 16, 2013Assignee: AB SKFInventors: Hans-Joachim Vom Stein, Wolfgang Korte, Marcus Stojek
-
Publication number: 20130174422Abstract: A method including the steps of forming an inner ring of the wheel hub, as the joining of a spindle and an insert ring fitted onto the spindle, on the side of a first end of the spindle; axially blocking the insert ring on the spindle by plastically deforming the first end of the spindle so as to form an upset collar therewith, which axially protrudes from the insert ring; and once the step of forming the upset collar has finished, frontally obtaining on the collar, on the side opposite to the insert ring, a frontal toothing by axially impressing on the collar one or more knives in sequence, carried in an axially sliding manner by a plate.Type: ApplicationFiled: July 11, 2012Publication date: July 11, 2013Applicant: AKTIEBOLAGET SKFInventors: Domenico BOSCO, Davide Antonio OLIVIERI, Marcello ROSSI
-
Patent number: 8479587Abstract: A method for indicating fatigue damage rate of a hardened metal object in relation to load cycles, N, exerted on the hardened metal object, wherein the hardened metal object presents a temperature essentially corresponding to the operating conditions of the hardened metal object is disclosed. It comprises calculating the fatigue rate based on an effective activation energy parameter for the dislocation climb process, Q, shear stress amplitude, T, the absolute local temperature of the hardened metal object, T, and load frequency, f. Methods for indicating fatigue and predicting life of a metal object are disclosed.Type: GrantFiled: June 28, 2006Date of Patent: July 9, 2013Assignee: Aktiebolaget SKFInventors: Jan Ture Slycke, Eusthatios Ioannides
-
Publication number: 20130169093Abstract: The invention regards an assembly (1), comprising; a bearing (2) with at least a first (21) and second (22) parts being moveable relative each other, a generator (3) attached to or integrated in said bearing (2), a lubrication pump (4) for outputting a lubricant to at least one lubricating point (5), an electrical motor or actuator (6) connected to the generator (3), wherein the generator (3) is meant to power the electrical motor or actuator (6). The lubrication pump (4) is connected to and driven by the electrical motor or actuator (6), and the lubrication pump (4) is located outside the bearing (2). Furthermore, the invention regards a system comprising the assembly (1) and a shaft (7).Type: ApplicationFiled: January 2, 2013Publication date: July 4, 2013Applicant: AKTIEBOLAGET SKFInventors: Alan Begg, Brian Murray
-
Patent number: 8476204Abstract: A Lubricant comprises a carboxylic-acid-amide which is based on aliphatic unbranched, alicyclic and/or aromatic chains with chain length from 2 to 60 carbon atoms.Type: GrantFiled: November 23, 2005Date of Patent: July 2, 2013Assignee: AB SKFInventors: Ebbe Malmstedt, Walter Holweger, Hubertus Peek, Ingemar Strandell, Arno Stubenrauch, Bernhard Bauer, Frank Fiddelaers, Albert Van Den Kommer
-
Patent number: 8474850Abstract: A lubricated guide unit is for a motorcycle fork tube that includes an outer tube and an inner tube telescopically slidable within the outer tube. The guide unit includes upper and lower sliding bushings axially spaced apart and disposed within a cavity of the outer tube and guide sliding movement of the inner tube. A first sealing device is mounted at an open end of the outer tube and seals against the outer surface of the inner tube. A second sealing device is mounted in the outer tube and seals against the outer surface of the inner tube. The second sealing device is axially spaced from the first sealing device such that a sealed, lubrication chamber is defined between the two sealing devices and the facing circumferential surfaces of the inner and outer tubes, the two bushings being disposed within the chamber.Type: GrantFiled: June 10, 2011Date of Patent: July 2, 2013Assignee: Aktiebolaget SKFInventor: Roberto Pasino
-
Patent number: 8474846Abstract: The suspension bump thrust device for a motor vehicle comprises a lower supporting cover 20, an upper elastic bearing seat 18 designed to be attached to the chassis of the motor vehicle, and a rolling bearing 22 forming an axial thrust placed axially between the supporting cover and the bearing seat. The bearing comprises a lower ring, an upper ring and at least one row of rolling elements placed between the said rings. The bearing seat comprises an axial retention means 34d for the supporting cover arranged on a skirt 34c of the said seat and interacting with a complementary axial retention means 50e for the said cover. A cup 36 for reinforcing the bearing seat forms the upper ring of the rolling bearing. The reinforcing cup 36 comprises an axial portion 36a resting against the skirt of the bearing seat and a radial portion 36b radially extending the axial portion inwards.Type: GrantFiled: July 13, 2010Date of Patent: July 2, 2013Assignee: Aktiebolaget SKFInventors: Jérôme Dubus, Richard Corbett, Samuel Viault
-
Publication number: 20130161969Abstract: The invention relates to a bearing unit for use in an axlebox of a railway vehicle, including a bearing having an inner ring and a metallic outer ring and rolling elements arranged therebetween. The bearing is configured to support an axle of said railway vehicle. Further, a sleeve surrounding the outer ring of the bearing is provided. It is proposed that the sleeve is made of a non-metallic material.Type: ApplicationFiled: December 3, 2012Publication date: June 27, 2013Applicant: AKTIEBOLAGET SKFInventors: Thierry Le Moigne, Xavier Blanchard
-
Publication number: 20130160669Abstract: An encoder device for use in a magnetic sensor arrangement, comprising: a metallic ring having a set of clearances in a ferromagnetic material, wherein said clearances are arranged around a circumference of the metallic ring, wherein the metallic ring is configured to generate an oscillating magnetic induction in a nearby magnetic sensor upon rotation of the metallic ring, wherein the metallic ring is made of at least one flat and strip-like sheet metal material, two ends of which are joined to form a loop.Type: ApplicationFiled: December 4, 2012Publication date: June 27, 2013Applicant: AKTIEBOLAGET SKFInventors: Arnaud Turmeau, Thierry Le Moigne
-
Publication number: 20130163908Abstract: A bearing cage has an annular structure with a plurality of pockets defined therein. At least one first surface area of the annular structure is made from, or is coated with, a first material having lipophobic and/or oleophobic properties. A rolling-element bearing includes this bearing cage, a plurality of roller bodies respectively disposed in the pockets, and a lubricant that forms a contact angle of at least 90° when disposed on the first material.Type: ApplicationFiled: December 10, 2012Publication date: June 27, 2013Applicant: AKTIEBOLAGET SKFInventors: Cornelia Haag, Ingo Schulz
-
Publication number: 20130160602Abstract: The invention relates to a mechanical system, comprising a support element which includes two bores extending along a first axis (X1), a pin which is fitted in the two bores and includes two opposite ends, each adapted to be caulked in one of the two bores, and a roller element which is positioned between the two bores along the first axis (X1) and is movable in rotation relative to the pin around the first axis (X1). At least one bore has at least one radial recess which extends from the bore along a radial direction (D1) relative to the first axis (X1) and is adapted to receive a plastically deformed radial portion of the caulked end of the pin. The invention also relates to an injection pump comprising such a mechanical system and a method for manufacturing such a mechanical system.Type: ApplicationFiled: December 10, 2012Publication date: June 27, 2013Applicant: AKTIEBOLAGET SKFInventor: Aktiebolaget SKF
