With Specified Seal Patents (Class 384/477)
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Patent number: 8931960Abstract: A bearing assembly (20) for use in a medical, surgical, or dental handpiece (10) that enables spindle rotation for a supported rotary tool (36) at high speeds. The bearing assembly (28) incorporates annular gap shields (50, 54) at each axial end to prevent contaminate ingress and to retain lubricating grease within the bearing assembly (28) to avoid re-lubricated after each use or sterilization cycle.Type: GrantFiled: April 17, 2009Date of Patent: January 13, 2015Assignee: The Timken CompanyInventors: Frank J. Damato, Joseph P. Greathouse, Paul J. Carabello, Ryan D. Evans, Martin S. Galehouse, Steven R. Morel, John A. Zannotti
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Publication number: 20150010256Abstract: A seal equipped bearing assembly includes a plurality of rolling elements interposed between opposite raceway surfaces defined in respective raceway rings; a sealing member to seal a bearing space delimited between the raceway rings; and a gap formation facilitating element defined in a seal contact face in the other of the raceway rings, the gap formation facilitating element being a projection provided in a circumferential portion of the seal contact face in the raceway ring. The gap formation facilitating element is configured to render the sealing member to be a non-contact seal or to contact so that the contact pressure is approximately zero when the bearing assembly is in a rotating state. The sealing member is provided with a suction preventing device for preventing the sealing member from being sucked onto the other of the raceway rings.Type: ApplicationFiled: September 24, 2014Publication date: January 8, 2015Applicant: NTN CORPORATIONInventors: Katsuaki SASAKI, Takahiro WAKUDA
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Publication number: 20150003765Abstract: A dust cover disposed on an outer periphery of an outer ring member of a bearing unit has a generally disc shape as viewed from an axial direction of the bearing unit. The dust cover has an outside ring portion, a short cylinder portion that extends toward an outboard side from an inner peripheral edge of the outside ring portion, and an inside ring portion that extends radially inward from a distal end of the short cylinder portion. A partition that restricts entry of muddy water into a vicinity of a seal member located on the outboard side is provided on an upper portion of an outer peripheral face of the short cylinder portion of the dust cover. A drain opening through which the muddy water is drained to an outside is formed in the short cylinder portion, at a position on an inboard side of the partition.Type: ApplicationFiled: June 20, 2014Publication date: January 1, 2015Inventors: Yuya INOUE, Shinji YAMANE
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Publication number: 20140334758Abstract: A rolling bearing assembly with electrical discharge damage protection is provided. The rolling bearing assembly includes radially inner and outer bearing rings that each have a race. A roller assembly including a plurality of rolling elements that are supported to roll on the races is provided. A shield extends radially between the radially outer ring and the radially inner ring. The shield includes a body portion with one radial end that is fixed to one of the radially inner or outer rings, at least one electrically conductive seal on a surface of the body portion, and a plurality of filaments extending on an opposite radial end of the body portion from the fixed radial end that contacts the other of the radially inner or outer rings.Type: ApplicationFiled: March 25, 2014Publication date: November 13, 2014Applicant: Schaeffler Technologies GmbH & Co. KGInventor: Michael WHITE
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Patent number: 8882359Abstract: A wheel rolling bearing unit capable of preventing grease leak even if the interference of the sealing member for sealing the clearance between the inner and outer rings is made small. The wheel rolling bearing unit according to the present invention is equipped with an inner shaft; an outer ring disposed concentrically on the outer peripheral side of the inner shaft; a plurality of balls disposed between these; and a pair of cages for retaining the balls in the circumferential direction. On the inner peripheral surface of each of the pair of cages, a concave section being dented to the outside in the radial direction to hold grease is formed in the range from the axial outside end section to the inside end section.Type: GrantFiled: February 9, 2012Date of Patent: November 11, 2014Assignee: Jtekt CorporationInventor: Kouji Kawaguchi
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Patent number: 8845201Abstract: A bearing includes an inner race and an outer race, which is radially outward from the inner race relative to a bearing axis. A cylindrical sleeve is substantially coaxial with the bearing axis and contacts an outer surface of the inner race. A dust shield is substantially perpendicular to the cylindrical sleeve, and a primary seal is axially interior to the dust shield. The primary seal contacts the cylindrical sleeve and the outer race.Type: GrantFiled: August 6, 2012Date of Patent: September 30, 2014Assignee: GM Global Technology Operations LLCInventors: Steven W. Creek, Edralin S. Diaz
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Patent number: 8845200Abstract: A single-row deep groove ball bearing made substantially of an inner ring and an outer ring disposed coaxially thereto and balls disposed between the rings. The balls roll in deep groove tracks in an outer face of the inner ring and in an inner face of the outer ring, and the balls are held at equal distances to each other in the circumferential direction by a housing. The interior of the bearing is sealed by two circular ring-shaped seals axially opposite each other. At least one of the seals is a lip seal, which has an angular profile. A shape-stable radial seal leg of the seal is attached to the outer ring and forms a gap seal with an axial side of the inner ring, and a sealing lip, which is an overpressure valve, is disposed under the inner ring and slidingly contacts the inner face of the inner ring.Type: GrantFiled: July 2, 2010Date of Patent: September 30, 2014Assignee: Schaeffler Technologies AG & Co. KGInventor: Ludwig Winkelmann
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Patent number: 8827563Abstract: A seal, which has a core with a radially outwardly extending flange with an end surface and a sealing body with a sealing lip and an over-molded portion that extends radially outward beyond the flange and encompasses the end surface of the flange. Also, a bearing arrangement is disclosed which includes a bearing cup that has a counterbore with a conical inner surface, and a seal, which is contactable with the bearing cup, and has a core with a radially outwardly extending flange with an end surface and a sealing body with a sealing lip and an over-molded portion which extends radially outwardly beyond the flange and encompasses the end surface of the flange. The seal can be press-fit with the bearing cup such that the over-molded portion and the conical inner surface of the bearing cup are in tight contact with each other and form a static seal.Type: GrantFiled: March 18, 2013Date of Patent: September 9, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: John Tate, Stephen Carr, Craig Goddard
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Patent number: 8814737Abstract: A wheel driving device includes: a reduction mechanism of which at least a part is disposed on an inside of a wheel; a casing; a relative rotation member rotating relative to the casing; a bearing disposed between the casing and the relative rotation member; and an oil seal sealing a space where the reduction mechanism is present, wherein an outer race of the bearing includes a main body portion of which an outer periphery is disposed on an inside of the casing, and an extending portion which extends from the main body portion in an axial direction and of which an outer periphery is exposed from the casing, and the oil seal abuts on the extending portion and the relative rotation member.Type: GrantFiled: August 16, 2012Date of Patent: August 26, 2014Assignee: Sumitomo Heavy Industries, Ltd.Inventor: Masayuki Ishizuka
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Publication number: 20140233876Abstract: A rolling bearing unit with decreased weight and improved durability is provided. An outer-ring core, manufactured using a ferrous alloy, forms an outer ring and is molded to an outer-ring main body that is manufactured using a synthetic resin containing reinforced fibers or using an aluminum alloy. Outer-ring raceway members are fitted into and fastened to mating concave surfaces of the inner circumferential surface of the outer-ring core that are exposed from the outer-ring main body. A hub core, manufactured using a ferrous alloy, forms a hub and is molded to a hub main body made using a synthetic resin containing reinforced fibers or using an aluminum alloy. Around the outer circumferential surface of the hub core, inner-ring raceway members are fitted onto and fastened to a fitting surface of the outer circumferential surface of the hub core that is exposed from the hub main body.Type: ApplicationFiled: June 19, 2012Publication date: August 21, 2014Applicant: NSK Ltd.Inventors: Hiroaki Ishikawa, Tatsuo Wakabayashi
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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: 8790018Abstract: The invention comprises a drum motor comprising a drum tube, a spatially fixed shaft in the interior of the drum tube. To provide a drum motor in particular for use in hygiene areas a drum motor (10) according to the invention comprises: a drum tube (11), a spatially fixed shaft (13) in the interior of the drum tube (11), an inner cover (13) for accommodating a bearing (14) to support the drum tube (11) rotatably about the shaft (13) and for internally sealing off the interior (12), and an outer cover (30) for covering a drum tube end and for externally sealing off the interior (12).Type: GrantFiled: May 20, 2010Date of Patent: July 29, 2014Assignee: Interroll Holding AGInventors: Helmut Leuver, Frank Heinen, Martin Priefert
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Patent number: 8783960Abstract: A dust-proof housing device is adapted for a bearing assembly and includes a housing body that includes two housing-half walls, each of which has a central hole defining an axis, and an inner peripheral end surrounding the central hole. A dust-proof cover has a fixing ring fitted in the inner peripheral end of at least one of the housing-half walls, and an annular flexible member secured to the fixing ring.Type: GrantFiled: October 31, 2012Date of Patent: July 22, 2014Assignee: Thai Dieng Industry Co., Ltd.Inventor: Chih-Hsien Chang
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Publication number: 20140177990Abstract: The present invention provides a rolling bearing which can be large-sized, is excellent in its 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. The base material of the bearing members consists of an iron-based material.Type: ApplicationFiled: August 9, 2012Publication date: June 26, 2014Applicant: NTN CORPORATIONInventors: Katsuhiro Suzuki, Eiichirou Shimazu
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Publication number: 20140169709Abstract: A system for providing sealed shaft bearing is disclosed. The system can include housing and one or more end caps. The end caps can house one or more seals and one or more bearings for supporting a shaft. The housing can be watertight to prevent water from infiltrating the housing and to prevent lubricant, if any, from escaping the housing into the environment. The system can use a multi-piece design to facilitate repair and maintenance. The system can be easily retrofitted into systems, such as marine systems, that use conventional plain shaft bearings.Type: ApplicationFiled: December 17, 2013Publication date: June 19, 2014Applicant: Ride the Ducks International, LLCInventors: Brian Deckard, Frank English
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Publication number: 20140161381Abstract: An axle has a journal to which an antifriction bearing is fitted on an enlarged or dust guard section located beyond the journal, with a fillet leading from the journal up to the enlarged section. A backing ring fits over and against the fillet of the journal and has a counterbore that receives the adjacent end of the enlarged section. A stabilizing ring fits into the counterbore of the backing ring and around the enlarged section of the journal to stabilize the backing ring and thereby reduce radial and circumferential movement between it and the fillet of the journal. The stabilizing ring includes a rigidifying element that fits over the enlarged section of the axle with an interference fit and a more flexible compression member that lies within the counterbore where it exists in a state of compression between the counterbore and the rigidifying element. The stabilizing ring allows some microaxial movement of the backing ring.Type: ApplicationFiled: February 17, 2014Publication date: June 12, 2014Inventors: Alan D. Buchanan, Stephen E. Brister, Jeffrey W. Schumacher
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Patent number: 8740464Abstract: The bearing assembly concept includes a floating seal arrangement. In one form, a bearing assembly comprises a first bearing member and a second bearing member that is oriented adjacent to the first bearing member. A plurality of bearings is positioned between the first bearing member and the second bearing member. A shield is engaged with the first bearing member, and a floating seal is slidably engaged with the shield and the second bearing member. The shield captures the floating seal adjacent to the second bearing member.Type: GrantFiled: November 2, 2011Date of Patent: June 3, 2014Assignee: Rexnord Industries, LLCInventor: Mark I. Berns
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Publication number: 20140140649Abstract: A bearing device (100) for screw conveyor shafts (200) comprises at least one shaft bearing unit (20) and a connecting shaft (50), guided in the shaft hearing unit (20), for connecting one or more screw conveyor shafts. The bearing device includes a stationary external housing (11) in which at least one shaft bearing unit (20) is arranged in a pivotable manner. At least one elastomeric ring element (13) is arranged between an inner surface of the external housing (11) and a lateral external surface of the shaft bearing unit (20).Type: ApplicationFiled: June 6, 2012Publication date: May 22, 2014Applicant: WHEELABRATOR GROUP GMBHInventor: Berthold Kampen
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Patent number: 8702312Abstract: A conveyor bearing includes an inner ring fitted on and fixed to a shaft, a plurality of rolling elements arranged rollably on a raceway surface of the inner ring, an outer ring disposed of rotatably relative to the inner ring via the rolling elements, and a seal member to seal in a grease between the outer ring and the inner ring. The seal member has a plurality of seal lips and is mounted on at least one location on the bearing.Type: GrantFiled: May 27, 2008Date of Patent: April 22, 2014Assignee: NSK Ltd.Inventors: Manabu Yamada, Masato Miyamoto
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Patent number: 8690444Abstract: The present disclosure refers to a crankshaft bearing arrangement for an internal combustion engine. The bearing arrangement comprises: a bearing arranged at a crankshaft of an internal combustion engine; a bearing seat for housing the bearing; and a sealing arrangement for sealing against the crankshaft and the bearing seat. The at least one part of the bearing seat has a reinforcement arranged in the bearing seat, and a surface of the at least one part of the bearing seat, which surface bears against the bearing, is made from a plastic material.Type: GrantFiled: December 6, 2006Date of Patent: April 8, 2014Assignee: Husqvarna AktiebolagInventors: Peter Björkman, Mats Granstedt
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Publication number: 20140086518Abstract: A threaded bearing retainer for a spherical bearing may include an annular top surface, an annular bottom surface, and an externally threaded cylindrical outer surface extending between the top and bottom surfaces and meshing with the internal threads of a housing bore. The bearing retainer may further include an annular sealing rib extending downwardly from the bottom surface and engaging the bore shoulder of the housing bore to form a substantially water-tight seal when the bearing retainer is screwed into the housing bore.Type: ApplicationFiled: September 27, 2012Publication date: March 27, 2014Applicant: CATERPILLAR INC.Inventor: Brian C. Wright
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Publication number: 20140072252Abstract: A bearing device includes a first bearing element and at least one second bearing element that is movably supported relative to the first bearing element and at least one seal unit that includes at least one attachment element that plays a role in attaching at least one seal element of the seal unit to the first bearing element. The attachment element includes at least a part of an antilock braking system (ABS) ring. The ABS ring may include through openings and be usable with a sensor that senses a magnetic field generated by the ABS ring.Type: ApplicationFiled: September 11, 2013Publication date: March 13, 2014Applicant: Aktiebolaget SKFInventors: Ludwig Edelmann, Matthias Schuler
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Publication number: 20140044387Abstract: A bearing, including a bearing part, in particular a bearing ring (5, 6) having a cathodic corrosion prevention device. The aim of providing a bearing having a permanent, adjustable corrosion prevention device that requires only minor structural changes is achieved according to the invention in that the bearing part, in particular the bearing ring (5, 6), is connected as the cathode of an external power source, and that the anode (8, 10) of the external power source is arranged spaced apart from the bearing part, in particular the bearing ring (5, 6).Type: ApplicationFiled: April 12, 2012Publication date: February 13, 2014Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Nico Kirchhoff, Christian Schulte-Nolle, Thomas Loesche, Claus Muller
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Publication number: 20140037238Abstract: A bearing includes an inner race and an outer race, which is radially outward from the inner race relative to a bearing axis. A cylindrical sleeve is substantially coaxial with the bearing axis and contacts an outer surface of the inner race. A dust shield is substantially perpendicular to the cylindrical sleeve, and a primary seal is axially interior to the dust shield. The primary seal contacts the cylindrical sleeve and the outer race.Type: ApplicationFiled: August 6, 2012Publication date: February 6, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Steven W. Creek, Edralin S. Diaz
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Patent number: 8632252Abstract: A grease baffle that may be installed and removed independently of an outer race of a bearing assembly, thus reducing or eliminating damage to the grease baffle during maintenance actions, eliminating the potential for damage to the bearing support body for maintenance actions requiring removal of the grease baffle but not removal of the outer race, and reducing maintenance time and maintenance costs. The grease baffle may be retained in the support body by a retaining ring or a resilient sealing member, and may be preloaded against a retaining surface.Type: GrantFiled: January 26, 2012Date of Patent: January 21, 2014Assignee: Parker-Hannifin CorporationInventor: Joseph Zeisler
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Patent number: 8628248Abstract: A seal arrangement with a centrifugal ring for a sealing between a rotatable bearing part and a static bearing part. The centrifugal ring has a first end piece, which forms both an outer circumference of the centrifugal ring and a cutoff edge located on a disk-shaped outer face. The seal arrangement reduces the coefficient of friction without having to accept any loss of sealing effect, but in which the seal arrangement nevertheless remains cost-effective to manufacture. For this purpose, the centrifugal ring has a second end piece. The end pieces together form a first collecting channel in the vicinity of the cutoff edge and the end pieces each form an annular seal gap with a static bearing part.Type: GrantFiled: December 20, 2010Date of Patent: January 14, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Wilheim Walter, Erwin Hartmann
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Publication number: 20140010655Abstract: A roller bearing that includes an outer ring, a first inner ring, and a first sealing ring that is disposed axially adjacent of the outer ring is provided. The roller bearing also includes a first retaining ring that is attached to the outer ring. The first sealing ring is fixed between the first retaining ring and a first clamping ring.Type: ApplicationFiled: September 10, 2013Publication date: January 9, 2014Applicant: AKTIEBOLAGET SKFInventor: Matthias Hofmann
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Publication number: 20140010487Abstract: A wheel bearing apparatus has a protecting cover formed from non-magnetic steel sheet with a cup-shaped configuration. The protective cover has a cylindrical fitting portion, a disk-shaped shield portion, a radially reducing portion, a stepped portion and a bottom portion. The cylindrical fitting portion is press-fit into the inner circumference of the inner-side end of the outer member. The disk-shaped shielding portion extends radially inward from the fitting portion, via the radially reducing portion. The inner-side surface of the shielding portion is arranged close to or in contact with a rotation speed detecting sensor. The bottom portion is continuous with the shielding portion, via the stepped portion to close the inner-side end of the inner member. A full deflection of the side surface of the shielding portion that is caused by a load the same as that applied to the protecting cover when it is press-fit into the outer member is limited to a predetermined value or less.Type: ApplicationFiled: September 7, 2013Publication date: January 9, 2014Inventors: Makoto SEKI, Yasuhiro ARITAKE, Tomoko BABA, Tadashi MITSUISHI
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Patent number: 8624455Abstract: A bearing change in an electrical motor and in particular a generator having permanent magnetic excitation should be able to be carried out safely. To this end, the invention relates to an electrical motor having a shaft (2) on which a rotor is mounted and a bearing unit (5) by means of which the shaft (2) is rotatably mounted. In addition, the electrical motor has a rotor support shield (1) to which the bearing unit (5) is fastened. Furthermore, the rotor support shield (1) is sized so as to be capable of supporting the shaft (2) when the bearing unit (5) is removed and seals a grease chamber (8) of the bearing unit (5) opposite the shaft (2). With the rotor support shield, a permanent magnet-equipped rotor can in particular be prevented from coming into contact with the stator when the bearing is removed.Type: GrantFiled: November 24, 2009Date of Patent: January 7, 2014Assignee: Siemens AktiengesellschaftInventors: Daniel Friedl, Oliver Memminger
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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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Publication number: 20130322803Abstract: A rolling-element bearing includes a first bearing ring (2) and a second bearing ring (4) opposing the first bearing (2) in a radial direction (3). A sealing element (6) of the rolling-element bearing includes a radially-encircling seal support (8) extending in the radial direction (3) by a predetermined distance towards the second bearing ring (4). The seal support (8) is interference-fit and removably attached to an axial end side (9) of the first bearing ring (2). A sealing lip (10) is attached to the seal support (8) and extends from an end of the seal support (8) opposite the first bearing ring (2) in the radial direction (3) up to a mating surface (12), which is part of the second bearing ring (2).Type: ApplicationFiled: November 22, 2011Publication date: December 5, 2013Applicant: Aktiebolaget SKFInventors: Andreas Gruber, Henning Kern, Jochen Lorenscheit, Edgar Pickel
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Patent number: 8585296Abstract: An axial lip is formed on a side surface of a seal of a rolling bearing which faces a slinger so as to expand outwards of the bearing. A projecting portion is formed on a flat surface of the slinger which faces the seal by flexing the slinger in an axial direction so as to cause the slinger to project inwards of the bearing, and a distal end of the axial lip is brought into contact with the flat surface of the slinger in a position lying further radially outwards than the projecting portion on the slinger. A radially inward inner surface of the axial lip of the axial lip and a radially outer side sloping surface formed radially outwards of the projecting portion on the slinger form a labyrinth, and a portion of the side surface of the seal which lies further radially inwards than the position where the axial lip is formed and an apex portion of the projecting portion on the slinger form a labyrinth.Type: GrantFiled: May 26, 2009Date of Patent: November 19, 2013Assignee: JTEKT CorporationInventors: Kunihiro Yamaguchi, Youichi Numada, Ikuo Ito
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Publication number: 20130301971Abstract: A bearing seal, which has a rubber body impregnated with an electrically conductive material such as graphite. A level of conductivity of the bearing seal depends upon an amount of graphite integrated into the rubber body. A bearing is also disclosed, which includes at least one closure element, such as a seal, arranged between an outer and inner ring of the bearing that is impregnated with an electrically conductive material, such as graphite, to create a conductive pathway for an electrical current to circumvent the rolling elements of the bearing. The closure element aids in ensuring electric current is kept away from the rolling elements by diverting electric current from the outer ring to the inner ring of the bearing.Type: ApplicationFiled: April 30, 2013Publication date: November 14, 2013Applicant: Schaeffler Technologies AG & Co. KGInventors: Michael CUDRNAK, William MORATZ
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Publication number: 20130266252Abstract: A conical roller bearing device includes: a conical roller bearing that includes an inner ring (24) that has an outer raceway surface on its outer peripheral surface, an outer ring (22) that has an inner raceway surface on its inner peripheral surface, a retainer (26), and a plurality of conical rollers that are rollably arranged between the outer raceway surface of the inner ring (24) and the inner raceway surface of the outer ring (22) and that are respectively accommodated in pockets formed in the retainer (26); and a pressing mechanism that presses the retainer (26) in a direction to reduce gaps between the conical rollers and the outer raceway surface of the inner ring (24) and gaps between the conical rollers and the inner raceway surface of the outer ring (22) along center axes of the inner ring (24) and outer ring (22).Type: ApplicationFiled: June 28, 2011Publication date: October 10, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Motoichi Murakami, Kenichi Harada, Kenichi Nakaoka, Yoshitaka Waseda
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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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Patent number: 8523447Abstract: A wheel bearing arrangement that has a wheel hub, which is operatively connected to an outer ring by way of rolling elements and a wheel flange. The wheel flange, together with a protective ring forms a first gasket. The protective ring surrounding the outer ring of the wheel hearing arrangement. This approach is of particular interest for non-driven wheel bearing arrangements in which the side of the wheel bearing facing the vehicle can be protected by a cover used on the vehicle side.Type: GrantFiled: September 28, 2009Date of Patent: September 3, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Roland Langer, Peter Niebling, Sebastian Lorenz
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Patent number: 8523449Abstract: A rolling bearing includes: an inner ring; an outer ring; a plurality of rolling elements; a retainer; and a sealing member. First to third lubricant reservoir portions that store the lubricant are respectively formed on the radially inner side of the retainer, on the inner side of the sealing member, and in an inner peripheral surface of the outer ring at a position near a raceway. An inclined first guide surface that guides the lubricant from the second lubricant reservoir portion toward the raceway is formed in an inner surface of the sealing member. An inclined second guide surface contiguous with the first guide surface and guiding the lubricant toward the raceway is formed in the inner peripheral surface of the outer ring. The first lubricant reservoir portion of the retainer is in communication with pockets of the retainer, which accommodate the rolling elements.Type: GrantFiled: May 6, 2011Date of Patent: September 3, 2013Assignee: Jtekt CorporationInventors: Kazuki Hamada, Hiroshi Ueno, Isao Usuki
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Publication number: 20130216171Abstract: A sealed anti-friction bearing (1), including an annular sealing washer (11, 12) which seals a rolling-body chamber (7) in the axial direction, wherein the sealing washer (11, 12) has a fastening section (14) for connecting it fixedly to a bearing ring (2) of the anti-friction bearing (1) so as to rotate with it, and wherein the sealing washer (11, 12) is anchored with its fastening section (14) in a circumferential groove (22) of the bearing ring. According to the invention, it is provided that the fastening section (14) has a first clamping element in the form of a barb (19) and a second clamping element in the form of an annular bead (20), and that the barb (19) and the bead (20) enter into a non-positive connection with oppositely lying surfaces of the groove (22).Type: ApplicationFiled: October 28, 2011Publication date: August 22, 2013Inventors: Felix Hofbauer, Rainer Schroder, Martin Grehn
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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: 8506170Abstract: A bearing is disclosed comprising an inner ring concentrically disposed with an outer ring with rotational elements therebetween adapted for allowing rotational movement of the inner ring relative to the outer ring. A relatively non-resilient isolator seal is mounted to the bearing.Type: GrantFiled: October 12, 2011Date of Patent: August 13, 2013Assignee: Baldor Electric CompanyInventor: Christopher E. Hosmer
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Patent number: 8500337Abstract: A rotating flow diverter has a lubricated sealed bearing assembly for isolating bearing elements from wellbore fluids under pressure. The sealed bearing assembly is supported between an outer bearing housing and an axially rotatable quill. The bearing assembly further has bearing elements with a bearing lubricant under pressure and a seal assembly. The seal assembly has at least one sealing element which comprises a body, the body having an outer peripheral wall, an inner sealing surface having a plurality of sealing lips and an annular cavity, and a loading ring for compressionally fitting within the annular cavity to urge the sealing surface radially inwardly for sealing engagement with tubulars.Type: GrantFiled: January 16, 2012Date of Patent: August 6, 2013Inventors: Jim Beauchamp, Jed Wood
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Publication number: 20130163907Abstract: A rolling bearing has an inner ring; an outer ring; a seal fixing groove provided at either the inner ring or the outer ring; a seal contact groove provided at either the inner ring or the outer ring on a side where the seal fixing groove has not been provided; and a sealing member with two ends. One end of the sealing member is fitted into the seal fixing groove, and the other end of the sealing member is configured not to contact the seal contact groove in a non-preloaded state but to contact the seal contact groove in an axial direction in a preloaded state. Further, a central line average roughness Ra of a contact surface of the seal contact groove to which the sealing member contacts is Ra?0.6 ?m.Type: ApplicationFiled: December 20, 2012Publication date: June 27, 2013Applicant: MINEBEA CO., LTD.Inventor: MINEBEA CO., LTD.
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Patent number: 8465211Abstract: A compact wheel end (A) serves to couple a road wheel (B) to a suspension system component (C) on an automotive vehicle and to transmit torque from a CV joint (D) to the road wheel. The wheel end includes a housing (2) that is attached to the suspension system component and a hub (4) provided with a drive flange (18) on which the road wheel is mounted and a spindle (20) that extends through the housing. The hub rotates relative to the housing on a double row tapered roller bearing (6), the raceways (40, 42, 44, 46) of which are surfaces on the housing and hub spindle. The wheel end also has a coupler (8) that is engaged with the hub spindle and the CV joint through mating splines (32, 72, 76, 94) and further provides a rib face (52) that backs the rollers (62) of the inboard row. The CV joint has a small diameter stub shaft (92) that extends through the hub to secure the CV joint to the hub, but does not transmit torque.Type: GrantFiled: January 9, 2009Date of Patent: June 18, 2013Assignee: The Timken CompanyInventors: John D. Dougherty, Richard H. Miller, Thomas J. Rybkoski, Justin P. Bill, Praveen M. Pauskar
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Patent number: 8449196Abstract: A rotation-guiding device includes a fixed support and a movable support able to rotate around the fixed support about an axis of rotation, wherein an interface between the fixed and movable supports includes a bearing to guide the movable support in rotation about the fixed support, a flexible dynamic seal providing seal-tightness between the fixed support and the movable support that is mounted between a friction track secured to one of said supports and a mechanical structure secured to the other support, and which includes a metal spring to provide the contact force for the seal between the friction track and the mechanical structure. The dynamic seal may be mounted parallel to the axis of rotation so that the contact force is exerted parallel to the axis of rotation.Type: GrantFiled: November 25, 2008Date of Patent: May 28, 2013Assignee: ThalesInventors: Arnaud Bretez, Eric Collard, Michel Rousset
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Patent number: 8442413Abstract: A bearing seal unit comprises: a bearing member that supports a rotating shaft so as to freely rotate; a seal member provided integrally at one side along an axial direction of the bearing member to seal the rotating shaft; a connecting part extended along the axial direction from one member to the other member of the bearing member and the seal member and having an end side in the extending direction which protrudes more in the direction intersecting the axial direction than a base end side to connect the bearing member integrally with the seal member.Type: GrantFiled: August 17, 2010Date of Patent: May 14, 2013Assignee: Fuji Xerox Co., Ltd.Inventor: Shinya Abe
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Publication number: 20130108200Abstract: The bearing assembly concept includes a floating seal arrangement. In one form, a bearing assembly comprises a first bearing member and a second bearing member that is oriented adjacent to the first bearing member. A plurality of bearings is positioned between the first bearing member and the second bearing member. A shield is engaged with the first bearing member, and a floating seal is slidably engaged with the shield and the second bearing member. The shield captures the floating seal adjacent to the second bearing member.Type: ApplicationFiled: November 2, 2011Publication date: May 2, 2013Inventor: Mark I. Berns
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Publication number: 20130094794Abstract: To protect moveable—mostly sliding parts from dirt porous filter material is placed in a closest way directly on one of the moveable partners; for instance directly in both fronts of a ball bearing running submerged in sea water to repel and absorb dirt particles on the way to the inner rolling parts. This will extend the service live under difficult conditions. In case of a mechanical shaft seal a filter ring is placed directly besides the sealing ring sliding together on a seat ring. Such filter ring protects the sensitive sliding surfaces much more completely than dirt rings in use, because they not only repel dirt, but absorb single dirt particles in its pores even in the sliding surface.Type: ApplicationFiled: October 13, 2011Publication date: April 18, 2013Inventor: Wolfhart Willimczik
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Publication number: 20130094793Abstract: A shaft support assembly that may include a mounting bracket, a dampener, a bearing retainer, a bearing, and a deflector. The deflector may be spaced apart from the dampener and may include a seal that engages the bearing retainer to inhibit contamination of the bearing.Type: ApplicationFiled: October 13, 2011Publication date: April 18, 2013Applicant: ARVINMERITOR TECHNOLOGY, LLCInventors: Robert Ostrander, Dumitru Florin Patrascu, Christopher Steele, Bradley Stark
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Patent number: 8419288Abstract: A hub unit bearing H1 includes a rotational speed detector 9 which is made up of an encoder 6 and a sensor 8. A seal 5b on a side facing a center side of a vehicle includes a primary seal 5bp and a secondary seal 5bq which are disposed in that order in an axial direction from rolling elements 32 on a side facing the center side of the vehicle towards the center side of the vehicle so as to define a primary sealed space portion I between the vehicle's center side facing rolling elements 32 and the primary seal 5bp and a secondary sealed space portion II between the primary seal 5bp and the secondary seal 5bq, with the rotational speed detector 9 disposed within the secondary sealed space portion II.Type: GrantFiled: July 14, 2008Date of Patent: April 16, 2013Assignee: NSK Ltd.Inventors: Yoshio Kaneko, Eishi Shibuya, Masaru Hashida
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Publication number: 20130084035Abstract: A turbocharger ball-bearing assembly incorporates a cageless set of ceramic bearing balls operating within outer and inner bearing raceways, wherein the outer bearing raceway is on the inside of a fractured outer race.Type: ApplicationFiled: September 28, 2012Publication date: April 4, 2013Inventors: Gregg WILLIAMS, Craig R. MILLER