Patents Assigned to SKF
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Publication number: 20130207410Abstract: An axle box for a railway vehicle bogie comprises a rolling bearing having an outer ring element, an inner ring element, rolling elements mounted there between, and a seal element, the inner ring element being adapted to be secured by screw bolts to an axial end of bogie axle. The axle box comprises an end cap comprising a flange with an inner face and an outer face, an annular first radial surface portion of the inner face being so defined that it is able to lean against an axial end of the inner bearing ring element of the rolling bearing. The flange comprises a central part traversed by screw bores. The flange comprises a first inner axial ridge running alongside the outer circumference of the cap, and extending axially towards the rolling bearing all around the flange, further than the first radial surface portion.Type: ApplicationFiled: August 9, 2012Publication date: August 15, 2013Applicant: AKTIEBOLAGET SKFInventors: Arnaud Duchassin, Thierry Le Moigne
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Publication number: 20130209162Abstract: The invention relates to an angle bracket including a composite material for connecting parts. The angle bracket has two wings forming an angle along a longitudinal folding axis and coupling regions on the outside of the fold. The coupling regions attach to parts to be connected, and is associated with a securing means. At least in the longitudinal direction, the angle bracket has at least one succession of domed sections with a concave or convex profile on the inside and/or outside of the fold, providing the bracket with a corrugated form in the longitudinal direction.Type: ApplicationFiled: September 30, 2011Publication date: August 15, 2013Applicant: SKF AEROSPACE FRANCEInventor: Jean-Michel Buchin
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Publication number: 20130207365Abstract: The present invention concerns a suspension thrust bearing device adapted to receive a shock absorber piston rod along a main axis (X1), the device including a single bearing forming an axial thrust bearing and including an inner race, an outer race and rolling members disposed between the inner race and the outer race, and at least one intermediate member adapted to transmit to the inner race essentially axial forces exerted on the device by a suspension spring. One of the inner race and the intermediate member extend(s) radially beyond the outer race in the direction of the main axis (X1), forming a bearing surface for fixing and centring the shock absorber piston rod relative to the device. The invention also concerns a motor vehicle McPherson strut including a shock absorber and a suspension thrust bearing device as referred to above.Type: ApplicationFiled: February 7, 2013Publication date: August 15, 2013Applicant: AKTIEBOLAGET SKFInventor: AKTIEBOLAGET SKF
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Patent number: 8505706Abstract: A bearing assembly is configured to be axially mountable in a support roller as a single structural unit. The support roller includes an at least partially hollow-cylindrical support roller shell and a support roller shaft. The bearing assembly comprises a mounting element configured to axially slide on the support roller shaft for mounting the bearing assembly in the support roller, a roller bearing having an inner ring fixedly supported on the mounting element, a support body radially surrounding the roller bearing, a cushioning layer radially surrounding the support body, and a sleeve radially surrounding the cushioning layer. The sleeve is configured to slidably contact an inner cylindrical surface of the support roller shell.Type: GrantFiled: March 6, 2009Date of Patent: August 13, 2013Assignee: Aktiebolaget SKFInventors: Peter Horling, Edgar Pickel
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Patent number: 8508168Abstract: Linear actuator device, comprising a housing (102,202), a piston rod (109,209), an electrical motor (116,216) and a transmission means (105,106,305,307) adapted to transfer the rotation of the electrical motor to a linear movement of the piston rod, where the linear actuator device comprises an integrated electrical interface having two signal inputs adapted to extend and retract the piston rod and two signal outputs adapted to indicate a retracted end position (122) and an extended end position (121) of the piston rod.Type: GrantFiled: June 3, 2008Date of Patent: August 13, 2013Assignee: Aktiebolaget SKFInventor: Johannes Andrianus Maria Duits
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Patent number: 8505204Abstract: A method of manufacturing a ball joint assembly including providing an internal centerpiece substantially in the shape of a hollow truncated sphere, placing the centerpiece within a metal hollow sleeve and deforming the sleeve by forcing the sleeve against an outer surface of the centerpiece to shape the sleeve to complement the outer surface of the centerpiece, forming at least one groove in an exterior surface of the sleeve and there after molding a plastic matrix composite material over the exterior surface of the sleeve to form an external body over the sleeve.Type: GrantFiled: July 27, 2012Date of Patent: August 13, 2013Assignee: SKF Aerospace FranceInventor: Patrick Jean-Marie Firmin Reverchon
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Publication number: 20130200281Abstract: A flow control valve includes at least one inlet unit configured to permit an inflow of a liquid into the flow control valve, and at least one outlet unit configured to permit an outflow of the liquid out of the flow control valve. The inlet unit is at least partially disposed on a radial outer surface of the flow control valve.Type: ApplicationFiled: August 8, 2012Publication date: August 8, 2013Applicant: AKTIEBOLAGET SKFInventors: Stefan Schuermann, Ali-Akbar Inanloo, Juergen Kreutzkaemper
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Patent number: 8496383Abstract: The bump stop device, particularly for a motor vehicle, comprises a bearing 6 forming an axial stop, a bottom support cover 5 of the bearing and a bottom retainer 7 for a spring comprising at least one stiffening strut. The support cover 5 and/or the retainer 7 comprises at least one axial securing means 15 of the bottom retainer and of the bottom support cover, the said means being situated axially set back from a bottom end of the retainer.Type: GrantFiled: September 23, 2009Date of Patent: July 30, 2013Assignee: Aktiebolaget SKFInventors: Samuel Viault, Thierry Poulle
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Patent number: 8496235Abstract: The suspension thrust bearing device comprises a rolling bearing 44 forming an axial stop and a support element 42 for the rolling bearing forming bearing means for a spring, the rolling bearing comprising a bottom ring 48 in contact with the support element, a top ring 46 and a plurality of rolling elements 50 positioned between the rings. The support element 42 comprises a body 60 and a stiffening insert 66 at least partly covered by the body. The body is formed of a rigid material 62 for the transmission of axial forces between the spring and the rolling bearing and a flexible material 64 to provide at least one dynamic seal 84b, 86b inside the device. At least a part of the rigid material is situated radially between the flexible material and the stiffening insert.Type: GrantFiled: February 18, 2009Date of Patent: July 30, 2013Assignee: Aktiebolaget SKFInventors: Samuel Viault, Christophe Houdayer, Bruno Montboeuf
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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
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Publication number: 20130188896Abstract: Bearing unit having an axis of rotation (A) and provided with a stationary ring and a rotatable ring, these rings being coaxial with each other and axially delimited on one side (L) by respective axial surfaces which are transverse to the axis (A); a magnetic encoder fixed to an outer cylindrical surface of the inner ring; and a protective cover mounted on the outer ring to protect the encoder and to close off a space formed between the two rings, the axial surface of the outer ring and the protective cover jointly delimiting a compartment for housing said encoder, which is positioned substantially outside the space and extends radially from the outer cylindrical surface to a boundary in the proximity of an outer cylindrical surface of the outer ring.Type: ApplicationFiled: January 23, 2013Publication date: July 25, 2013Applicant: AKTIEBOLAGET SKFInventor: Andrea SERAFINI
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Publication number: 20130188900Abstract: A bearing cage for a rolling element bearing includes a plurality of individual bearing cage segments configured to respectively accommodate rolling elements in rolling element pockets formed by the bearing cage segments. Each bearing cage segment includes a first coupling device disposed on a first axial end thereof. A first lamellar support ring defines first and second ring halves that are connected to each other, are axially adjacent to each other are biased towards each other. The first ring half extends through the respective first coupling devices of the plurality of bearing cage segments and the second ring half is disposed on an axially-inner side or an axially-outer side of the first coupling devices such that the first coupling devices are clamped between the first and second ring halves.Type: ApplicationFiled: July 30, 2012Publication date: July 25, 2013Applicant: AKTIEBOLAGET SKFInventors: Burkard Beck, Berthold Beyfuss, Hans-Juergen Friedrich, Alfred Radina, Jonas Schierling, Werner Schneider, Gerhard Wagner, Juergen Weiglein
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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
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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
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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
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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
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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
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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
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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
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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
