Seals Patents (Class 384/607)
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Patent number: 11629753Abstract: A rotation induction device for a vehicle, includes an upper case member, a lower case member, a center plate, and an inflow prevention part. The upper case member has a piston rod disposed therethrough. The lower case member, disposed under the upper case member, has the piston rod disposed therethrough. The center plate, disposed between the upper and lower case members such that the piston rod passes through the center plate, is configured to induce either one or both of the upper and lower case members to rotate. The inflow prevention part, formed in the upper and lower case members, is configured to block the inflow of foreign matters. Each of the upper case member, the lower case member, and the center plate is composed of a synthetic resin material.Type: GrantFiled: June 3, 2021Date of Patent: April 18, 2023Assignees: HYUNDAI MOBIS CO., LTD, ILJIN CO., LTDInventors: Byung Joon Choi, Jun Mo Kang, Byung Hwan Kim, Tae Ho Hong
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Patent number: 11168738Abstract: This disclosure provides a strut bearing for MacPherson strut suspensions including a cap, a guide ring, and a bearing arrangement located between the cap and the guide ring. The cap comprises a first hook on an inner side in a radial direction of the strut bearing and a third hook on an outer side in the radial direction, and the guide ring comprises a second hook on the inner side engaged with the first hook and a fourth hook on the outer side engaged with the third hook; the first and second hooks form an inner snap connection extending circumferentially, and the third and fourth hooks form an outer snap connection extending circumferentially.Type: GrantFiled: December 20, 2017Date of Patent: November 9, 2021Assignee: Schaeffler Technologies AG & Co. KGInventors: Liuqing Yan, Yong Wu, Christian Nuissl
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Patent number: 10641333Abstract: A cage segment for a rolling-element bearing cage includes first and second side elements connected by a bridge extending in a longitudinal direction. A first attaching element on the first side element extends away from the bridge in a first direction parallel to the longitudinal axis and a second attaching element on the second side element extends away from the bridge in a second direction parallel to the longitudinal axis. The first and second attaching elements are configured to receive a wire or cable for connecting the cage segments to other cage segments, and the first attaching element is offset from the longitudinal axis in a first direction by a first distance and the second attaching element is offset from the longitudinal axis in a second direction opposite the first direction by a second distance.Type: GrantFiled: December 10, 2018Date of Patent: May 5, 2020Assignee: AKTIEBOLAGET SKFInventors: Sabine Hofmann, Baozhu Liang
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Patent number: 10029532Abstract: The invention relates to strut bearing with a cap and a guide ring which is mounted in a rotatable manner about a rotational axis (D) relative to the cap. An axial bearing is arranged between the cap and the guide ring, and the cap includes a soft component and a hard component. Furthermore, the soft component has at least two circumferential sealing lips which rest against the guide ring in a sliding manner in order to seal the axial bearing. According to the invention, the soft component is formed on a hard component end face oriented towards the guide ring, and a hard component end face oriented opposite the guide ring has a profile.Type: GrantFiled: March 2, 2015Date of Patent: July 24, 2018Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Wollner, Rainer Lutz, Ralf Stautner
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Patent number: 10006503Abstract: A radial non-contact lip (26) having a tip edge that is positioned further radially inward than is the inner peripheral surface at an axial end of an inner ring (7) is formed on the inner peripheral edge of a seal ring (20) that axially faces a flange part (18a) constituting a bearing holder (3a), the seal ring (20) being one of a pair of seal rings (20, 9b) that close the openings at the two axial ends of a release bearing (2a). A labyrinth seal (30) is formed, between the axial-side surface of the radial non-contact lip (26) and the axial end surface of the inner ring (7), radially inward from a sliding contact part (40) between the tip edge of a contact lip (12a) and the axial inner end surface of the inner ring (7).Type: GrantFiled: December 10, 2014Date of Patent: June 26, 2018Assignee: NSK LTD.Inventor: Haruyuki Aihara
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Patent number: 9925839Abstract: A suspension bump stop device that provides an upper bearing cap that contacts an upper bearing seat outside of the device, and a lower support cap and at least one bearing arranged between the caps. The upper bearing cap provides a latching means that cooperates with the upper bearing seat to axial secure the bearing seat.Type: GrantFiled: February 24, 2016Date of Patent: March 27, 2018Assignee: AKTIEBOLAGET SKFInventors: Charles Bedeau, Christophe Houdayer, Jean-Marc Soudée, Désiré Vidot
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Patent number: 9869351Abstract: A spring strut bearing with a cap and with a guide ring which is mounted in a rotatable manner relative to the cap about a rotational axis (D), an axial bearing being arranged between the cap and the guide ring. The cap has a seal, and the cap is connected to the guide ring at an inner diameter of the cap by a snap-in connection. The cap has a first element of the snap-in connection, and the guide ring has a second element of the snap-in connection, said elements engaging into each other in a formfitting manner. The first element is designed as a two-component part, the soft component of which engages into the second element in a formfitting manner and the hard component of which forms a reinforcement of the soft component.Type: GrantFiled: September 2, 2014Date of Patent: January 16, 2018Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Wollner, Alexander Zernickel, Rainer Lutz, Ralf Stautner
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Patent number: 9856917Abstract: A strut bearing has an upper carrier having a first outer rim and a first inner rim, the first inner rim having a first circumferential connector, and a lower carrier having a second outer rim and a second inner rim, the second inner rim having a second circumferential connector. The first inner rim is held to the second inner rim through an overlapping connection of the first circumferential connector to the second circumferential connector. The strut bearing also has a bearing arranged between the upper carrier and the lower carrier, and a first sealing ring positioned between and in contact with the first circumferential connector and the second circumferential connector. The sealing ring is formed from a material that is softer and more elastic than a material from which the first circumferential connector and the second circumferential connector are formed.Type: GrantFiled: November 8, 2016Date of Patent: January 2, 2018Assignee: Schaeffler Technologies AG & Co. KGInventors: Kunal Vidyasagar, Emily Bygrave
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Patent number: 9732799Abstract: An axial bearing arrangement formed substantially of two rotating carrier components (1, 2) with circular ring-shaped end faces (3, 4) and an axial anti-friction bearing (5) arranged between the carrier components (1, 2). This axial anti-friction bearing (5) has a first ring-shaped angle disk (6), which rests on the end face (3) of the first carrier component (1) and which is made from a thin steel sheet, and a second ring shaped angle disk (7), which rests on the end face (4) of the second carrier component (2) and a needle cage (10), which rolls between the axial inner sides (8, 9) of the angle disks (6, 7) and which is formed from a plurality of bearing needles (12) arranged adjacent to one another and held at equal distances to one another by a bearing cage (11), and is lubricated and cooled by a lubricant flow (13) emitted by a shaft which passes centrally through the axial anti-friction bearing (5).Type: GrantFiled: November 13, 2013Date of Patent: August 15, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Wolfgang Fugel, Andreas Kirschner, Martin Gegner
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Patent number: 9581213Abstract: Provided are a rolling bearing and a suspension apparatus for an automobile enhanced in stiffness. To do so, in a rolling bearing and a suspension apparatus for an automobile according to an exemplary embodiment of the present invention, an upper cover's upward surface in contact with an upper case and an upper cover's peripheral surface in contact with the upper case are orthogonal to each other, and a length of the upward surface in a radial direction is longer than a length of the peripheral surface in a vertical direction.Type: GrantFiled: March 19, 2015Date of Patent: February 28, 2017Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Kye Ho Lee
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Patent number: 9545830Abstract: A suspension bearing device, comprising: a bearing, a lower cup and an upper cup centered on a central axis. The lower cup having a body including a tubular axial portion and an annular outward radial portion. The lower cup is provided with a damper pad including: an inner portion disposed against the annular outward radial portion of the body; an outer portion for bearing a suspension spring; and an annular recess for receiving a creep of material of the damper pad when the outer portion is constrained by the suspension spring. The suspension bearing device can be integrated into a motor vehicle. A method for manufacturing such a suspension bearing device.Type: GrantFiled: September 28, 2015Date of Patent: January 17, 2017Assignee: AKTIEBOLAGET SKFInventors: Charles Bedeau, Sylvain Bussit, Francois De Lemps, Christophe Houdayer, Thomas Lepine, Jean-Marc Soudee, Desire Vidot
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Patent number: 9248715Abstract: The present invention relates to a suspension bearing device, comprising a rolling bearing forming an axial stop along a main axis and at least one seal adapted for protecting the rolling bearing from ingress of water or of polluting particles. The device is characterized in that it also comprises a bottom cup and a top cup made of plastic, in contact with the rolling bearing, the bottom cup forming a bearing means for a suspension spring, and in that the or each seal is made of thermoplastic overmolded onto a first element between the cups and comprises a base of substantially annular shape from which extends at least one sealing lip in contact with the second element between the cups. The invention also relates to a strut of a motor vehicle, comprising a damper and a suspension bearing device as mentioned above.Type: GrantFiled: April 23, 2013Date of Patent: February 2, 2016Assignee: AKTIEBOLAGET SKFInventors: Sylvain Bussit, Christophe Houdayer, Bruno Montboeuf, Adrien Nerriere, Jean-Marc Soudee, Desire Vidot
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Patent number: 9234541Abstract: A suspension strut bearing (1) having two assemblies (11, 12), which are counter-rotatable about a longitudinal axis (z) and centered with respect to each other, including two bearing rings (2, 3), which are each allocated to one assembly (11, 12) and counter-rotatable when mounted, and a sealing device (8). In order to decouple the sealing device (8) and the centering from each other with respect to the function thereof and still provide said parts cost-effectively, a single-piece, two-component element (5) is provided on one of the bearing rings (2), which element centers the assemblies (11, 12) one over the other by a first component having a greater stiffness than a second component and forms the sealing device (8) with the second component.Type: GrantFiled: January 21, 2013Date of Patent: January 12, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Ralf Stautner, Andreas Wollner, Rainer Lutz
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Patent number: 9194435Abstract: A sliding bearing 1 including an upper casing 3 having an annular lower surface 2; a lower casing 5 which is superposed on the upper casing 3 so as to be rotatable about an axis O of the upper casing 3 and has an annular upper surface 4 opposed to the annular lower surface 2 of the upper casing 3; an annular thrust sliding bearing piece 7 disposed in an annular space 6 between the annular lower surface 2 and the annular upper surface 4; a seal 8 disposed on an outer peripheral side of the annular space 6; and a seal 9 disposed on an inner peripheral side of the annular space 6.Type: GrantFiled: May 10, 2007Date of Patent: November 24, 2015Assignee: OILES CORPORATIONInventors: Kazuyuki Miyata, Ryohei Kaneko
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Patent number: 9028152Abstract: A rolling diaphragm seal for a strut bearing, the seal inserted into an annulus formed between an upper and lower housing. The seal having a hollow tubular form, formed into a ring open at one end. The seal rolling along a length thereof during relative rotation of the upper and lower housings. Alternatively, the seal can be a continuous hollow tubular form inserted between the upper and lower housings.Type: GrantFiled: December 10, 2013Date of Patent: May 12, 2015Assignee: Scheaffler Technologies AG & Co. KGInventor: Robert Weiss, II
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Patent number: 9011014Abstract: A rolling bearing which can be large-sized, has corrosion resistance, and is allowed to prevent mounting accuracy from deteriorating, a fixing force from decreasing, vibration from occurring at a portion of the rolling bearing to be fixed to a bearing box or the like, and can be used for a long term even in a highly corrosive environment. A rolling bearing (1) has an inner ring (2), an outer ring (3), and rolling elements (4) as bearing members thereof. Of regions of the bearing members which are exposed to a corrosive environment, a film having a sacrificial anode action for a base material of the bearing members is formed in a region including at least a surface (c, d) of the rolling bearing (1) to be fixed. The film formed on the surface (c, d) thereof to be fixed is porous.Type: GrantFiled: August 9, 2012Date of Patent: April 21, 2015Assignee: NTN CorporationInventors: Katsuhiro Suzuki, Eiichirou Shimazu
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Patent number: 8998499Abstract: The rolling bearing comprises an inner ring 1, an outer ring 2, at least one row of rolling elements and at least one seal 7 provided between the outer and inner rings. The seal 7 has, in cross section, the overall shape of an H and comprises internal lips 21, 22 and external lips 23, 24 forming the two substantially parallel branches of the H. The inner and outer rings 1, 2 comprise opposite radial ribs 25, 26 located axially between the internal and external lips 21 to 24 to axially retain the seal.Type: GrantFiled: September 24, 2013Date of Patent: April 7, 2015Assignee: Aktiebolaget SKFInventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
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Patent number: 8967875Abstract: A bearing includes a liquid lubricant and at least one ceramic component, which, during operation of the bearing, is subject to rolling contact load. A tribological surface of the at least one ceramic component is impregnated with a sealant, such that the liquid lubricant is prevented from entering discontinuities in the tribological surface.Type: GrantFiled: November 25, 2010Date of Patent: March 3, 2015Assignee: Aktiebolaget SKFInventors: Andriy Volodymyrovych Rychahivskyy, Charlotte Vieillard, Xiaobo Zhou
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Publication number: 20150030278Abstract: A suspension strut bearing (1) having two assemblies (11, 12), which are counter-rotatable about a longitudinal axis (z) and centered with respect to each other, including two bearing rings (2, 3), which are each allocated to one assembly (11, 12) and counter-rotatable when mounted, and a sealing device (8). In order to decouple the sealing device (8) and the centering from each other with respect to the function thereof and still provide said parts cost-effectively, a single-piece, two-component element (5) is provided on one of the bearing rings (2), which element centers the assemblies (11, 12) one over the other by a first component having a greater stiffness than a second component and forms the sealing device (8) with the second component.Type: ApplicationFiled: January 21, 2013Publication date: January 29, 2015Inventors: Ralf Stautner, Andreas Wollner, Rainer Lutz
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Patent number: 8876399Abstract: A suspension strut bearing including a cap (2) and a guide ring (3) mounted for rotation relative to the cap (2) about an axis of rotation (D) and further including at least one seal (10), a thrust bearing (4) being arranged between the cap (2) and the guide ring (3). The cap (2) includes respective centering elements (15, 16) on an inner diameter and on an outer diameter, which centering elements (15, 16) enable an introduction of force into the cap (2).Type: GrantFiled: July 2, 2013Date of Patent: November 4, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Rainer Lutz, Ralf Stautner, Andreas Woellner
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Patent number: 8876398Abstract: The axial thrust bearing device, in particular for the suspension strut of a motor vehicle, comprises a bottom support cover, a top bearing cover, a rolling bearing axially disposed between said covers, and at least a sealing ring axially bearing against the bottom support cover and adapted to reduce any ingress of foreign matter between said covers. The sealing ring comprises at least one friction lip in contact with the top bearing cover and tending to keep said sealing ring in axial contact with the bottom support cover.Type: GrantFiled: April 6, 2010Date of Patent: November 4, 2014Assignee: Aktiebolaget SKFInventors: Richard Corbett, Samuel Viault
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Patent number: 8864384Abstract: A seal lip having: a cylindrical seal surface in close contact with an outer peripheral surface of an inner race with outer side and inner side surfaces standing upright respectively from an outer end and an inner end of the seal surface and reaching a lip supporting portion of a seal member, and protruding on an inner peripheral surface of the lip supporting portion. The outer side surface is a perpendicular surface standing upright from the outer end of the seal surface in a direction perpendicular to a generating line of the outer peripheral surface of the inner race. The inner side surface includes: a perpendicular surface standing upright from the inner end of the seal surface in parallel with the outer side surface; and a conical surface inclined toward the outer side surface extending outward in a radial direction from an outer peripheral end of the perpendicular surface.Type: GrantFiled: March 19, 2013Date of Patent: October 21, 2014Assignees: Keihin Corporation, Minebea Co., Ltd.Inventors: Tomoaki Ohba, Takuya Usami, Kenichiro Nishimura, Akimi Furukoshi
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Patent number: 8840316Abstract: A suspension thrust bearing device having a lower cover, an upper cover and a rolling bearing disposed between the lower cover and the upper cover. The rolling bearing providing a lower ring mounted on the lower cover and an upper ring mounted on the upper cover. The rolling bearing further providing rolling elements disposed between the two rings. The lower cover has a body formed of a rigid material part and a flexible material part forming a seal of the device. The flexible part of the lower cover includes at least one labyrinth sealing lip that cooperates with the upper cover to leave a narrow passage forming a labyrinth seal between one edge of the labyrinth sealing lip and the upper cover and at least one rubbing sealing lip in contact with the upper cover.Type: GrantFiled: October 24, 2011Date of Patent: September 23, 2014Assignee: Aktiebolaget SKFInventors: Bruno Montboeuf, Désiré Vidot, Florence Crenn, Richard Corbett
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Patent number: 8821027Abstract: A suspension stop device for a suspension arm of a vehicle, having a coil spring, having a stop bearing defining a rotation axis of the device and a bottom metal washer turning with respect to a top metal washer; a support piece for transmitting to the bottom washer forces exerted by the spring, the support piece comprising a support zone for the bottom washer; a cover covering the top washer and delimiting with the support piece a housing for the bearing, the cover being provided with a skirt covering a peripheral zone of the support piece and delimiting with the peripheral zone of the support piece an annular labyrinth, disposed radially outside the housing and connecting the housing to the outside; and an annular deflector delimiting with the skirt of the cover at least one top opening and with the support piece at least one bottom opening.Type: GrantFiled: March 29, 2012Date of Patent: September 2, 2014Assignee: NTN-SNR RoulementsInventor: Anthony Chamousset
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Patent number: 8807842Abstract: A thrust bearing with a improved sealing assembly includes external envelop such as with close rim at both ends having flat face to provide room for rubber lip folding and sealing such as double lip seal with two axial lips. The axis of rubber lips are inclined with relevant mating part. The extreme ends of the envelop envelops the delicate lip of rubber seals. The portion of the envelop ID [20] is put in a manner to guides roller cage assembly and create sealing at [08, 09]. The bearing external envelop is used as stiffener for body of double lip seal. The shape and design of the external machine cover face accommodate lips of seals, protect seals lips and hold the bearing together.Type: GrantFiled: May 5, 2011Date of Patent: August 19, 2014Assignee: NRB Bearings Ltd.Inventor: Suresh T. Salunke
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Patent number: 8777494Abstract: This rolling bearing (1) comprises an inner ring (2), an outer ring (3), rolling members (5) placed in a rolling bearing chamber (4) arranged between the inner and outer rings, a bistable washer (7) capable of selectively taking one of two predetermined configurations, and an annular flange (8) partly delimiting the rolling bearing chamber (4) and mounted on a first ring (3; 2) of the inner and outer rings. The flange (8) extends radially from the first ring (3; 2) and is axially aligned with the second ring (2; 3).Type: GrantFiled: September 15, 2009Date of Patent: July 15, 2014Assignee: Aktiebolaget SKFInventor: Benoit Arnault
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Patent number: 8668394Abstract: The ball bearing (1) forms a member for transmitting an axial force and comprises an inner ring (3), an outer ring (4), balls (6) disposed in a raceway chamber (5) formed between the inner ring and the outer ring, and an annular shield (8) mounted on a radially inner edge face (32) of a first ring (3). The inner and outer rings (3, 4) are mounted with freedom to pivot mutually about a point (C1) common to the axes of symmetry (X3, X4) of the two rings. The shield (8) extends from the first ring (3, 4) to the vicinity of a portion (43) of the second ring (4) that is centered on said common geometric point (C1), and the shield (8) has an end portion (83) with a surface (831) that is a truncated sphere centered on the common geometric point (C1) or a truncated cone centered on the axis of symmetry (X3) of the first ring (3).Type: GrantFiled: April 26, 2010Date of Patent: March 11, 2014Inventors: Benoit Arnault, Sylvain Bussit, Mickael Chollet
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Publication number: 20140010491Abstract: A suspension strut bearing including a cap (2) and a guide ring (3) mounted for rotation relative to the cap (2) about an axis of rotation (D) and further including at least one seal (10), a thrust bearing (4) being arranged between the cap (2) and the guide ring (3). The cap (2) includes respective centering elements (15, 16) on an inner diameter and on an outer diameter, which centering elements (15, 16) enable an introduction of force into the cap (2).Type: ApplicationFiled: July 2, 2013Publication date: January 9, 2014Inventors: Rainer Lutz, Ralf Stautner, Andreas Woellner
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Patent number: 8613557Abstract: The rolling bearing comprises an inner ring 1, an outer ring 2, at least one row of rolling elements and at least one seal 7 provided between said outer and inner rings. The seal 7 has, in cross section, the overall shape of a H and comprises internal lips 21, 22 and external lips 23, 24 forming the two substantially parallel branches of said H. The inner and outer rings 1, 2 comprise opposite radial ribs 25, 26 located axially between the internal and external lips 21 to 24 to axially retain the seal.Type: GrantFiled: October 9, 2009Date of Patent: December 24, 2013Assignee: Aktiebolaget SKFInventors: Andreas Gruber, Wolfgang Swete, Pascal Ovize, Jesko-Henning Tanke, Ake Fick
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Patent number: 8596878Abstract: The invention relates to a rolling bearing 1 comprising a lower ring 3 mounted inside a lower annular cup 6, an upper ring 2 mounted inside an upper annular cup 7, and at least one row of rolling elements 4 positioned between raceways defined by lower and upper rings. One of the annular cups has at least one annular skirt 6d partly inserted within at least one annular groove 7m provided in the other annular cup, thus forming a sinuous chamber 8, and the sinuous chamber is at least partly filled with at least one waterproof grease material 9.Type: GrantFiled: December 1, 2008Date of Patent: December 3, 2013Assignee: Aktiebolaget SKFInventors: Christophe Houdayer, Sylvain Bussit, Richard Corbett, Samuel Viault, Bruno Montboeuf
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Publication number: 20130313766Abstract: The present invention relates to a method for manufacturing a suspension bearing device, comprising at least one rolling bearing, a bottom cup and a top cup made of plastic, each in contact with the rolling bearing, and at least one seal suitable for protecting the rolling bearing from ingress of water or of polluting particles. The method is characterized in that it comprises at least one step of positioning a seal made of thermosetting elastomer on a supporting element made of plastic between the bottom cup and the top cup and, for the or each seal made of thermosetting elastomer, a step of curing this seal on its supporting element. The invention also relates to a suspension bearing device and a strut of a motor vehicle.Type: ApplicationFiled: May 1, 2013Publication date: November 28, 2013Applicant: AKTIEBOLAGET SKFInventors: Sylvain Bussit, Richard Corbett, Christophe Houdayer, Bruno Montboeuf, Adrien Nerriere, Samuel Viault, Desire Vidot
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Patent number: 8534926Abstract: There is provided a clutch release bearing in which a water resistance is enhanced. At a side axially opposite from one side where an outer ring rib of a clutch release bearing is formed, there is provided a first seal member externally fitted to an outer ring to be fixed thereto. A seal lip disposed in sliding contact with an outside-diameter surface of an inner ring is formed at a radially-inward distal end of the first seal member. An annular guide is provided at a bearing-outward side of the first seal member, and an axial lip which extends toward the outside of the bearing and extends to be disposed radially outwardly of the guide is formed at a bearing-outward side face of the first seal member. The axial lip is disposed in non-contact, close relation to the guide to form a labyrinth. A radially outwardly-open groove is formed in a joint portion of the axial lip joined to the first seal member.Type: GrantFiled: May 27, 2009Date of Patent: September 17, 2013Assignee: Jtekt CorporationInventors: Akiyuki Suzuki, Takashi Sugimoto, Motoshi Kawamura, Kouhei Yamaguchi, Tetsuro Inoue, Yoshitaka Nakagawa
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Publication number: 20130205604Abstract: A shaft bearing device for a hand-held power tool, in particular for an angle grinder and/or a circular saw, includes at least one first support unit and at least one second support unit which are intended to axially and/or radially support a bearing element of a shaft. At least one of the at least two support units is formed at least partially by a plate element that has at least one axial and/or radial bend.Type: ApplicationFiled: June 6, 2011Publication date: August 15, 2013Applicant: Robert Bosch GmbHInventors: Florian Esenwein, Thomas Schomisch
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Patent number: 8506171Abstract: Spring strut bearing, which has an antifriction bearing that is arranged axially between an upper carrier part and a lower carrier part and a sealing ring. The upper carrier part has two upper rims, and the lower carrier part has two lower rims. The upper rims and the lower rims engage into one another with the result that a combined labyrinth and slip-ring seal is formed.Type: GrantFiled: February 17, 2012Date of Patent: August 13, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Ralf Stautner, Andreas Woellner, Gerhard Meyer, Alexander Zernickel, Rainer Lutz
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Publication number: 20130202242Abstract: The axial thrust bearing device, in particular for the suspension strut of a motor vehicle, comprises a bottom support cover, a top bearing cover, a rolling bearing axially disposed between said covers, and at least a sealing ring axially bearing against the bottom support cover and adapted to reduce any ingress of foreign matter between said covers. The sealing ring comprises at least one friction lip in contact with the top bearing cover and tending to keep said sealing ring in axial contact with the bottom support cover.Type: ApplicationFiled: April 6, 2010Publication date: August 8, 2013Inventors: Richard Corbett, Samuel Viault
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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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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: 8449201Abstract: The invention relates to an element (10) for sealing two parts (2, 3) that can be rotated in relation to one another. Said element comprises at least one first sealing ring (11) consisting of a permanently elastic material, which is fixed to one of the two rotatable parts and comprises at least one sealing lip (21) and at least one second sealing ring (12), which is fixed to the other rotatable part and comprises a strip (19) consisting of another material that runs along its periphery. At least one sealing lip of the first sealing ring lies against said strip.Type: GrantFiled: August 25, 2006Date of Patent: May 28, 2013Assignee: IMO Holding GmbHInventors: Erich Russ, Hubertus Frank, Hermann Willaczek
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Publication number: 20130064489Abstract: The axial thrust bearing device, in particular for the suspension strut of a motor vehicle, comprises a bottom support cover 18, a top bearing cover 16, a rolling bearing 20 axially disposed between said covers, and at least a sealing ring 22 freely movable in axial direction relative to the bottom support cover and to the support bearing cover. Said sealing ring is adapted to reduce any ingress of foreign matter between said covers. The sealing ring comprises at least one friction lip 22b, 22c bearing against the bottom support cover 18 and delimits with the top bearing cover 16 at least a labyrinth sealing zone.Type: ApplicationFiled: March 30, 2010Publication date: March 14, 2013Inventors: Richard Corbett, Samuel Viault
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Publication number: 20130051721Abstract: A thrust bearing with a improved sealing assembly includes external envelop such as with close rim at both ends having flat face to provide room for rubber lip folding and sealing such as double lip seal with two axial lips. The axis of rubber lips are inclined with relevant mating part. The extreme ends of the envelop envelops the delicate lip of rubber seals. The portion of the envelop ID [20] is put in a manner to guides roller cage assembly and create sealing at [08, 09]. The bearing external envelop is used as stiffener for body of double lip seal. The shape and design of the external machine cover face accommodate lips of seals, protect seals lips and hold the bearing together.Type: ApplicationFiled: May 5, 2011Publication date: February 28, 2013Inventor: Suresh T. Salunke
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Patent number: 8348512Abstract: A clutch release bearing device having an interior and an exterior raceway. The exterior raceway is equipped with a ring wall being retracted underneath the path radius of an inner roller body raceway. An interior sealing device is provided, including a ring element axially supported on an inner radial wall section of the retracted ring wall.Type: GrantFiled: February 18, 2011Date of Patent: January 8, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Steffen Dittmer, Bernhard Kloepfer, Ludwig Winkelmann
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Publication number: 20130004114Abstract: A seal cover includes an axially opposing portion arranged to extend radially outward from a outer circumferential surface of a bearing portion, and arranged axially opposite a lower end portion of a rotor cylindrical portion; and a radially opposing portion arranged to extend upward continuously from a axially opposing portion, and arranged opposite to an outer circumferential surface of a rotor cylindrical portion to define a vertical gap together with a rotor cylindrical portion.Type: ApplicationFiled: May 29, 2012Publication date: January 3, 2013Applicant: NIDEC CORPORATIONInventors: Tomohiro HASEGAWA, Shunji MATSUMOTO, Takahiro KIKUICHI, Mitsuhito NISHIO, Noriaki YAMADA, Satoru OTSU, Hiroyoshi TESHIMA, Kiyoto IDA
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Patent number: 8308176Abstract: A suspension stop for a motor vehicle has an upper cup, a lower cup and roller bodies arranged between the cups to permit the relative rotation thereof. The cups are designed to have at least one annular space between them. The stop further has a seal element arranged in the annular space with a sliding contact with each cup. The seal element is arranged to be mobile with relation to at least one cup.Type: GrantFiled: June 27, 2008Date of Patent: November 13, 2012Assignee: SNR RoulementsInventors: Herve Lenon, Gerard Mermoud, Ludovic Saunier
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Publication number: 20120257849Abstract: The suspension thrust bearing device for a motor vehicle comprises a rolling bearing 22 forming an axial thrust bearing and provided with an upper ring, with a lower ring and with at least one row of rolling elements arranged between the rings, a bearing cap 18 in contact with the upper ring, and a support cap 20 in contact with the lower ring and forming a bearing means for a suspension spring. The support cap 20 comprises a body 32 of rigid material and seals 46, 48 of flexible material fixed to the body and comprising dynamic sealing lips 56, 62 in frictional contact with the bearing cap or one of the rings of the rolling bearing and delimiting radially a sealed space 64 containing at least the rolling elements of the rolling bearing. The support cap 20 further comprises an annular ring 50 to which the lower ends of the seals are connected and forming a bearing surface 50a for the suspension spring.Type: ApplicationFiled: July 19, 2010Publication date: October 11, 2012Applicant: AKTIEBOLAGET SKFInventors: Richard Corbett, Jerôme Dubus, Bruno Montboeuf, Samuel Viault
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Patent number: 8267587Abstract: A housing for a fluid lubrication bearing apparatus is formed of a resin composition containing polyphenylene sulfide (PPS) as a base resin. The ratio of the base resin to the resin composition is not lower than 40 vol % but not higher than 70 vol %. Moreover, in the composition, an epoxy compound having two or more epoxy groups per molecule of the compound and epoxy value of 0.5 meq/g or more to the resin composition may be added so that the amount of epoxy groups in the resin composition is 8 meq/100 g or more. A carbon fiber may also be added to the resin composition in an amount of not less than 10 vol % but not more than 35 vol %. An inorganic compound may be further added to the resin composition to be the remainder of the resin composition.Type: GrantFiled: April 11, 2006Date of Patent: September 18, 2012Assignee: NTN CorporationInventors: Kazutoyo Murakami, Masaki Egami
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Patent number: 8262290Abstract: A bearing element 7 has rolling bodies 3, having an inner raceway, an outer raceway and adjacent rolling bodies 3 which are arranged rotatably between the inner and the outer raceways via a cage 4 for holding the rolling bodies 3. At least one porous element 6, 13, 16 is provided for accommodating lubricant for the bearing element 7.Type: GrantFiled: March 22, 2007Date of Patent: September 11, 2012Assignee: Paul Mueller GmbH & Co. KG UnternehmensbeteiligungenInventor: Fritz Feldmeier
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Publication number: 20120213464Abstract: Spring strut bearing, which has an antifriction bearing that is arranged axially between an upper carrier part and a lower carrier part and a sealing ring. The upper carrier part has two upper rims, and the lower carrier part has two lower rims. The upper rims and the lower rims engage into one another with the result that a combined labyrinth and slip-ring seal is formed.Type: ApplicationFiled: February 17, 2012Publication date: August 23, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Ralf STAUTNER, Andreas WOELLNER, Gerhard MEYER, Alexander ZERNICKEL, Rainer LUTZ
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Publication number: 20120189237Abstract: Suspension thrust bearing device comprising a lower cover, a upper cover and a rolling bearing disposed between the lower and upper covers, the rolling bearing comprising a lower ring mounted on the lower cover and a upper ring mounted on the upper cover, and rolling elements disposed between the two rings, the lower cover having a body formed of a rigid material part and a flexible material part forming a device seal, attachment means provided on the lower and upper covers to prevent axial separation of the covers. The flexible part of the lower cover includes at least one labyrinth sealing lip cooperating with the upper cover to leave a narrow passage forming a labyrinth seal between one edge of said labyrinth sealing lip and the upper cover and at least one rubbing sealing lip in contact with the upper cover, the sealing lips being separate from the attachment means.Type: ApplicationFiled: October 24, 2011Publication date: July 26, 2012Applicant: AKTIEBOLAGET SKFInventors: Bruno MONTBOEUF, Désiré VIDOT, Florence CRENN, Richard CORBETT
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Publication number: 20120146306Abstract: 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: ApplicationFiled: July 13, 2010Publication date: June 14, 2012Inventors: Jérôme Dubus, Richard Corbett, Samuel Viault
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Patent number: 8182153Abstract: A bearing damper includes: (a) an annular sleeve having spaced-apart grooves formed in a radially-facing surface therein; (b) an annular bearing race received in the sleeve; and (c) a resilient seal ring disposed in each of the grooves, wherein the seal rings cooperate with the sleeve and a radially-facing surface of the bearing race to define a closed annular gap, and further wherein the seal rings are sized so as to urge the bearing race towards a coaxial position relative to the sleeve.Type: GrantFiled: February 27, 2009Date of Patent: May 22, 2012Assignee: General Electric CompanyInventors: Anant Pal Singh, Michael Slusher, Albert Frank Storace, James C. Austrow, Tony Metz