By Cage Or Race Structure Patents (Class 384/560)
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Patent number: 11982312Abstract: A segment bearing device for supporting a first bearing partner relative to a second bearing partner about a pivot axis (S) includes a plurality of rolling elements, a segment cage for receiving the rolling elements, and a partial shell, the partial shell providing a race for the rolling elements. At least one of the plurality of rolling elements is arranged as a mounting rolling element in a first partial circle (TK1) in an operating state of the segment bearing device, and is held in a second partial circle (TK2) in a mounted state of the segment bearing device. The common center point of the partial circles (TK1, TK2) is defined by a center of curvature of the segment cage, and the first partial circle (TK1) has a smaller diameter than the second partial circle (TK2).Type: GrantFiled: January 12, 2021Date of Patent: May 14, 2024Assignee: Schaeffler Technologies AG & Co. KGInventors: Dieter Jauernig, Robert Dressel, Richard Frisch
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Patent number: 11815129Abstract: Disclosed is a needle roller bearing, in particular for use in supporting a bottom roller in a spinning machine. The needle roller bearing includes an inner ring and an outer ring which are arranged such that the inner ring and the outer ring are rotatable relatively to each other around a bearing rotation axis. A rolling chamber is defined between the inner ring and the outer ring, in which a plurality of needle rollers are arranged. A solid lubricant is disposed in the rolling chamber of the needle roller bearing.Type: GrantFiled: December 29, 2021Date of Patent: November 14, 2023Assignee: Aktiebolaget SKFInventors: Shihao Du, Thomas Kettner, Harald Metz, Sebastian Dinkel
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Patent number: 11692531Abstract: A pivot cradle bearing (1) having a pivoting element (2) which is mounted to pivot in a housing (3) is provided in which an inner bearing shell (7), on which rolling bodies (4) are rolling, is held on the pivoting element (2). The inner bearing shell (7) is held by rivets (10) in a form-fitting manner on the pivoting element (2) in the circumferential direction of the bearing shell (7).Type: GrantFiled: May 6, 2020Date of Patent: July 4, 2023Assignee: Schaeffler Technologies AG & Co. KGInventor: Vasyl Kramar
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Patent number: 11280384Abstract: A balance shaft is proposed that includes: i) an unbalance shaft having an unbalance section and an adjacent bearing pin having a cylindrical partial circumference which is oriented towards the shaft imbalance; ii) a bearing ring which surrounds the bearing pin and bears against the cylindrical partial circumference and delimits a free space with a bearing pin back radially opposite thereto; and, iii) a clamping element which is clamped in the free space and clamps the bearing ring radially against the cylindrical partial circumference. The clamping element is intended to secure the bearing ring against axial sliding on both sides on the bearing pin, and the clamping element is connected in an axially interlocking manner to the unbalance shaft on one side and to the bearing ring on the other side.Type: GrantFiled: August 29, 2019Date of Patent: March 22, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Thomas Hußenether, Norbert Geyer, Hannes Schreyer, Christof Faria
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Patent number: 11085492Abstract: A bearing ring for a taper roller bearing defining a guiding flange (36, 110) and a raceway (112), wherein the bearing ring comprises a retainer element (77, 120, 124) that is removably engageable with the raceway. Embodiments of the invention also relate to a roller bearing assembly comprising such a bearing ring, and wind turbine arrangements incorporating such a roller bearing assembly.Type: GrantFiled: October 25, 2018Date of Patent: August 10, 2021Assignee: Vestas Wind Systems A/SInventor: Lutz Heuser
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Patent number: 11078956Abstract: A rolling-element bearing unit includes at least one outer ring, at least one inner ring, at least one cage, and a plurality of rolling elements between the outer ring and the inner ring and disposed in pockets of the cage. At least one auxiliary ring is disposed axially adjacent to the outer ring, and the cage includes connecting elements, such as radially outwardly extending lugs, for captively connecting the auxiliary ring to the cage.Type: GrantFiled: December 4, 2019Date of Patent: August 3, 2021Assignee: AKTIEBOLAGET SKFInventors: Ludwig Edelmann, Dominic Namyslo, Matthias Schuler, Johannes Zang
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Patent number: 10494089Abstract: A hanger bearing assembly for a shaft assembly includes a plurality of bearing elements arranged around a circumference of a shaft assembly, each bearing element having a bearing element diameter. A bearing inner race is positioned between the plurality of bearing elements and the shaft assembly and extends circumferentially about the shaft assembly. The bearing inner race includes an outer wall interactive with the plurality of bearing elements. The outer wall has a linear profile extending in an axial direction. A bearing outer race is positioned radially outboard of the plurality of bearing elements and extends circumferentially about the shaft assembly. The bearing outer race includes an inner surface interactive with the plurality of bearing elements and having a curvilinear inner surface profile extending in the axial direction.Type: GrantFiled: March 23, 2015Date of Patent: December 3, 2019Assignee: SIKORSKY AIRCRAFT CORPORATIONInventors: Yuriy Gmirya, Rodger W. Bowman
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Patent number: 10458478Abstract: A hub unit bearing includes: a hub spindle; an inner ring; an outer ring member; a plurality of tapered rollers that are rollably provided between outer circumferential surfaces of the hub spindle and the inner ring and an inner circumferential surface of the outer ring member; a cage including a large-diameter-side annular part, a small-diameter-side annular part; and a sealing device including a metal insert, wherein: the metal insert includes a cylindrical part that is mounted on the inner circumferential surface of the outer ring member and a flange part that radially extends inward from one end of the cylindrical part; and an engaging projection is provided on an outboard side end face of the large-diameter-side annular part of the cage, and an engaging groove engaged with the engaging projection is provided on an inboard side end face of the flange part of the metal insert.Type: GrantFiled: August 13, 2018Date of Patent: October 29, 2019Assignee: NSK LTD.Inventors: Naoko Nancy Yokoyama, Masayoshi Shimizuya
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Patent number: 10371207Abstract: A roller bearing comprises inner and outer rings defining a toroidal inner raceway rotatable about a bearing axis (A). A plurality of concave rolling elements is arranged in a single row between the outer and inner rings. Each of the plurality of concave rolling elements is a symmetrical cylindrical roller having circular ends, a roller axis passing through the center of the circular ends, and a concave side profile that extends continuously between the circular ends. The toroidal inner and outer raceways each have a convex race surface that continuously engages the concave side profile between the circular ends of each concave rolling element with a first radius and extends axially beyond the circular ends of each concave rolling element with a second radius that is less than the first radius.Type: GrantFiled: April 27, 2018Date of Patent: August 6, 2019Assignee: CLAVERHAM LTD.Inventor: Suat Bekircan
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Patent number: 9453528Abstract: A bearing assembly including a connecting rod (30) with a first end (32) and a second end (36), the second end (36) defining a first outer raceway (44a) and a second outer raceway (44b) with a thrust ring (60) therebetween, a crankshaft (10) defining a cylindrical inner raceway (14), a first plurality of radial roller elements (52a) disposed between the first outer raceway (44a) and the inner raceway (14), and a second plurality of radial roller elements (52b) disposed between the second outer raceway (44b) and the inner raceway (14). An axial length of at least one of the first radial roller elements (52a) is greater than an axial length of the first outer raceway (44a) and the axial length of at least one of the second radial roller elements (52b) is greater than an axial length of the second outer raceway (44b).Type: GrantFiled: February 8, 2012Date of Patent: September 27, 2016Assignee: Koyo Bearings North America LLCInventors: Gary Schick, Scott Brown
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Patent number: 9347490Abstract: A roller bearing cage includes the following features: The cage comprises an annular circumferential element, from which bridge elements branch off, roller bodies of the roller bearing being disposable between the bridge elements, the circumferential element comprises a plurality of uniform section elements, and the initially-loose section elements and bridge elements are connected with each other to form the cage.Type: GrantFiled: October 30, 2008Date of Patent: May 24, 2016Assignee: AKTIEBOLAGET SKFInventors: Berthold Beyfuss, Hans-Jürgen Friedrich, Alfred Radina, Jonas Schierling
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Patent number: 9151328Abstract: The conical roller bearing includes an inner ring which includes an annular groove between an inner-ring-side raceway surface and a small-diameter-side end portion thereof, and a cage which includes an erected portion extending from a first annular portion of the cage towards the annular groove. The erected portion includes a first inclined portion and a second inclined portion. The first inclined portion is inclined towards conical rollers disposed in pockets of the cage while extending from the first annular portion towards the annular groove. The second inclined portion is inclined towards the small-diameter-side end portion while extending from the first inclined portion towards the annular groove. The second inclined portion is configured to be brought into engagement with the annular groove in an axial direction of the inner ring.Type: GrantFiled: October 10, 2013Date of Patent: October 6, 2015Assignee: JTEKT CORPORATIONInventors: Ryosuke Chudo, Motoshi Kawamura, Yoshihito Nakashima
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Patent number: 8998489Abstract: A segment rolling bearing for an axial hydraulic pump, which can be integrated in a simple way. The segment rolling bearing has an outer raceway carrier, an inner raceway carrier, a plurality of rolling bodies, and a cage. The rolling bodies are arranged in the cage such that they roll between the outer raceway carrier and the inner raceway carrier in such a way that the outer raceway carrier can be pivoted about a common pivot axis with respect to the inner raceway carrier. The cage is connected to the inner and/or to the outer raceway carrier directly and captively in at least one connecting region, at least in the radial direction with respect to the common pivot axis.Type: GrantFiled: June 8, 2010Date of Patent: April 7, 2015Assignee: Schaeffler Technologies AG & Co. KGInventors: Harald Vornehm, Peter Decker, Michael Pausch, Klaus Drescher
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Publication number: 20140254969Abstract: The present invention relates to a roller bearing (10) for supporting a rotatable component such as a shaft. We describe a double row roller bearing (10) for supporting a rotatable circular section component, said roller bearing (10) comprising an inner ring (11) including a pair of inner races (12, 13), an outer ring (17) including a pair of outer races (18, 19), two rows of rollers (22, 23) mounted between the inner and outer races, each row of which rollingly engages respective races in the inner and outer rings, clamping ring means (26) which surrounds and clamps said inner ring (11), at least said inner ring (11) and said clamping ring means (26) each comprising two substantially semicircular parts, the relevant semicircular parts being mounted together to provide a circular component for surrounding the rotatable component, and said clamping ring means (26) surrounds and clamps with said inner ring (11) at a position substantially midway between the axially opposite sides of the inner ring (11).Type: ApplicationFiled: October 2, 2012Publication date: September 11, 2014Applicant: Cooper Roller Bearings Co., Ltd.Inventor: Martin Caspall
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Patent number: 8764306Abstract: A multi-row rolling bearing, which has a cage for rows of rolling elements that is detachably connected to a respective adjoining cage. For assembly and safety of assembly, the detachable connection between the cages is at least one predetermined breaking point.Type: GrantFiled: February 15, 2012Date of Patent: July 1, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Peter Friedrich, Michael Krueger, Steffen Saebsch, Heinz Schaefers, Matthias Fick, Manfred Winkler, Johannes Enders
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Patent number: 8764304Abstract: A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature.Type: GrantFiled: September 4, 2007Date of Patent: July 1, 2014Assignee: NTN CorporationInventors: Tatsuya Omoto, Eiichi Nakamizo, Tomoya Sakaguchi
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Patent number: 8757888Abstract: A shaft may have functional elements arranged thereon and at least one bearing point. At least one rolling bearing with rolling bodies may be arranged between the shaft and the at least one bearing point, the bearing having at least one rolling body cage configured to accommodate the rolling bodies and an outer ring. The rolling body cage may be fixed at least one of directly and indirectly to the shaft by a carrier ring and the outer ring may be fixed in the bearing point. The carrier ring may include the rolling body cage fixed thereon, the cage having a greater radial extent than the functional elements. The carrier ring may have a radial extent smaller than the greatest radial extent of one of the functional elements.Type: GrantFiled: December 13, 2012Date of Patent: June 24, 2014Assignee: Mahle International GmbHInventors: Thomas Flender, Antonio Menonna, Falk Schneider, Stefan Steichele
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Publication number: 20140169717Abstract: A radial rolling bearing (10) with rolling bodies (24) which are received in at least one cage (26, 28) and which are arranged between an inner ring (20) and an outer ring (22). The radial rolling bearing (12) is radially separable, and the radially multipart inner ring (20) can be fixed on a shaft (16) using two clamping rings (36, 38) which are attached to the axial ends of said inner ring. The inner ring (20) is designed without rims on the axially outer sides, and the clamping rings (36, 38) take on the function of inner ring rims, the rolling bodies (24) running against inner run-on surfaces (50) of the clamping rings (36, 38) in the axial direction. On the basis of the at least partial positioning of the clamping rings (36, 38) axially below the cages (26, 28) or the outer ring (22), the clamping rings (36, 38) take on two additional functions in addition to the actual clamping ring main function of fixing the inner ring (20) on the shaft (16).Type: ApplicationFiled: April 12, 2012Publication date: June 19, 2014Applicant: Schaeffler technologies AG & Co. KGInventor: Rainer Schroder
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Patent number: 8740466Abstract: A roller bearing for a shaft that has a cylindrical peripheral surface, the bearing including a race (12) to be fitted onto the shaft, and roller bodies (16) arranged to roll on the race (12), the race (12) having a polygonal internal cross-section, so that it engages the peripheral surface of the shaft only in the vicinity of the center of each side (28) of the polygon.Type: GrantFiled: September 29, 2011Date of Patent: June 3, 2014Assignee: Rollax GmbH & Co. KGInventors: Jörg Schwarzbich, Thomas Ullrich
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Patent number: 8740471Abstract: An object of the present invention is to prevent breakup of segments which constitute a split type retainer for a tapered roller bearing, when the tapered roller bearing is being mounted on target equipment, thereby improving operability in the mounting process. A segment for a tapered roller bearing is provided with a predetermined number of posts between a small-diameter-side end fringe which constitutes a small-diameter-side circumferential edge of a split type retainer and a large-diameter-side end fringe which constitutes a large-diameter-side circumferential edge thereof. Pockets are formed between the posts. At least the large-diameter-side end fringe, out of the small-diameter-side end fringe and the large-diameter-side end fringe, is provided with a large-diameter-side engagement piece.Type: GrantFiled: October 27, 2010Date of Patent: June 3, 2014Assignee: NTN CorporationInventors: Masahiro Yamada, Katsunori Sone, Tsukasa Toyoda, Yoriko Kosaka, Yuuki Ishizaki
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Publication number: 20140126849Abstract: A wheel bearing arrangement with first rolling elements, which are capable of rolling on a first inner ring, wherein the rolling elements are guided by a first roller bearing cage, and an axial spacer element is provided for spacing apart the first inner ring from a bearing element, wherein the bearing element can in particular be a second inner ring. The intention is to facilitate the complex installation of the individual parts in wheel bearings for utility vehicles. The first rolling element cage forms, together with the axial spacer element, an axial form-fitting connection. The spacer element can be fixed to at least one of the inner rings via the form-fitting connection to the cage prior to tightening the wheel hub, together with the wheel bearing preinstalled thereon.Type: ApplicationFiled: August 22, 2011Publication date: May 8, 2014Applicant: Schaeffler Technologies AG & Co. KGInventors: Christian Horn, Marc-Andre Schaefer
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Patent number: 8708572Abstract: An object of the present invention is to prevent breakup of segments which constitute a split type retainer for a tapered roller bearing, when the tapered roller bearing is being mounted on target equipment, thereby improving operability in the mounting process. A segment for a tapered roller bearing is provided with a predetermined number of posts between a small-diameter-side end fringe which constitutes a small-diameter-side circumferential edge of a split type retainer and a large-diameter-side end fringe which constitutes a large-diameter-side circumferential edge thereof. Pockets are formed between the posts. At least the large-diameter-side end fringe, out of the small-diameter-side end fringe and the large-diameter-side end fringe, is provided with a large-diameter-side engagement piece.Type: GrantFiled: October 27, 2010Date of Patent: April 29, 2014Assignee: NTN CorporationInventors: Masahiro Yamada, Katsunori Sone, Tsukasa Toyoda, Yoriko Kosaka, Yuuki Ishizaki
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Publication number: 20140105529Abstract: A bearing device includes inner ring rolling surfaces formed so that the external radius of inner end portions of a first inner ring and a second inner ring is smaller than a first separation distance and formed so as to have an external radius that becomes larger from an inner side toward the other side, and outer ring rolling surfaces formed so that the internal radius of outer end portions of a first outer ring and a second outer ring is larger than a second separation distance and is formed so as to have an internal radius that becomes smaller from the outer side toward the inner side.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Applicant: SEIKO INSTRUMENTS INC.Inventor: Akihiro IINO
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Publication number: 20140104727Abstract: A first inner ring and a second inner ring respectively include inner ring rolling surfaces formed so that the external radius of inner end portions is smaller than a first separation distance and formed so as to have an external radius that become larger than the first separation distance, and a first outer ring and a second outer ring respectively include outer ring rolling surfaces formed so that the internal radius of outer end portions is larger than a second separation distance and formed so as to have an internal radius that becomes smaller than the second separation distance, and the first outer ring and the second outer ring are formed integrally with each other to form an outer ring.Type: ApplicationFiled: October 15, 2013Publication date: April 17, 2014Applicant: SEIKO INSTRUMENTS INC.Inventors: Akihiro IINO, Akio OZAWA
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Publication number: 20140050432Abstract: A cage segment for a rolling-element bearing has at least one pocket for a rolling element and is formed by a first segment part and a second segment part. The second segment part abuts the first segment part in an axial direction and is connected to the first segment part by an interference-fit or a friction-fit, or in a materially-bonded manner.Type: ApplicationFiled: January 26, 2012Publication date: February 20, 2014Inventors: Sabine Hofmann, Baozhu Liang
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Patent number: 8632256Abstract: A rocking bearing outer ring (12) includes an arcuate track member (13) having a track surface on its inner diameter surface, and a flange portion (14) projecting radially inward from each widthwise end portion of the track member (13). In addition, when it is assumed that L1 represents a circumferential length of the track member (13) and L2 represents a circumferential length of the flange portion (14), 0.2?L2/L1?8 is satisfied.Type: GrantFiled: May 21, 2008Date of Patent: January 21, 2014Assignee: NTN CorporationInventors: Akihiko Katayama, Masaru Kuroda, Haruki Yamada
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Patent number: 8573851Abstract: A needle roller bearing, which has a rimless inner ring or a rimless inner ring bushing and a plurality of rolling elements that are arranged and rotatable in the cage. For coherence of the needle roller bearing after manufacturing and for mounting in an installation space, the cage has, at least on one front end, a radially inward pointing retaining device and the inner ring or the inner ring bushing has a retaining element on its outer periphery that cooperates with the retaining device.Type: GrantFiled: February 9, 2012Date of Patent: November 5, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Peter Friedrich, Michael Krueger, Reinhart Malik, Steffen Saebsch, Heinz Schaefers, Matthias Fick, Manfred Winkler, Johannes Enders
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Patent number: 8393081Abstract: A method for filling a ball roller bearing with roll bodies, and a ball roller bearing, which is filled according to the method and has an outer and an inner bearing ring and a plurality of ball rollers, which are arranged between these bearing rings and have two side surfaces, which are flattened symmetrically from a basic spherical shape, parallel to one another and held at uniform distances from one another by a bearing cage. The ball rollers roll in groove-shaped raceways recessed in the inner face of the outer bearing ring and the outer face of the inner bearing ring. The ball roller bearing is filled by an eccentric axial, tilting fitting of the ball rollers through the interval between the bearing rings in the form, that the filled ball roller bearing is filled to the extent of about 94% and has a service life of up to 253%.Type: GrantFiled: November 10, 2008Date of Patent: March 12, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Horst Doeppling, Ernst Geiger, Heinrich Hofmann, Joachim Muser
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Patent number: 8371759Abstract: In a double row rolling bearing for supporting a pinion shaft, an outer ring is fixed to an inner peripheral surface of an annular wall (case) with its axis disposed horizontally, and an inner ring assembly is fitted on a pinion shaft, and is inserted, together with the pinion shaft, horizontally into the outer ring through a larger-diameter opening of the outer ring, and is mounted in the outer ring. A larger-diameter cage has a drop limitation portion for limiting the vertically-downward movement of the larger-diameter case.Type: GrantFiled: April 2, 2007Date of Patent: February 12, 2013Assignee: JTEKT CorporationInventors: Toshirou Fukuda, Yuzuru Takahashi, Toshihiro Kawaguchi, Hiroyuki Ooshima, Kiyokane Iwamoto
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Patent number: 8356945Abstract: A bearing assembly is provided having a roller bearing a cone forming an inner race fitted around the journal portion of an axle. A cup forms an outer raceway that combines with the inner raceway to receive roller elements. A backing ring is centered to the shaft fillet. Tapered roller elements are located between and contact the inner and outer raceways. A cage is comprised of an inner ring, and outer ring, and a plurality of pocket bars extend between the inner and outer rings. The pocket bars of the cage include a protrusion that is received in a groove in the cone.Type: GrantFiled: November 24, 2009Date of Patent: January 22, 2013Assignee: Amsted Rail Company, Inc.Inventors: Michael Mason, Paul A. Hubbard
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Publication number: 20120269474Abstract: A method and clamping device for securing and protecting a rolling-element bearing during a bearing mounting operation are disclosed. The rolling element bearing includes a bearing outer ring, a bearing inner ring, a bearing cage and rolling elements. The clamping device includes a clasp or fastener configured to detachably attach to an axial projection of the bearing cage. Ends of the clamping device radially extend over the bearing inner ring and bearing outer ring, respectively, so as to axially support the bearing cage relative to the bearing outer ring and the bearing inner ring when the bearing is lifted with its rotational axis extending vertically.Type: ApplicationFiled: April 16, 2012Publication date: October 25, 2012Applicant: AKTIEBOLAGET SKFInventors: Mathias Seuberling, Reiner Wagner
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Patent number: 7766555Abstract: A roller bearing utilizing a roller retainer, which has an excellent assemblability in the sense that the assembly line can be automated and which eliminates various problems inherent in the full complement roller bearing The roller bearing includes an outer race having a raceway, a plurality of rollers held in rolling contact with the raceway, and a ring-shaped roller retainer having a plurality of pockets, each rollingly receiving the respective roller, spacedly defined therein in a direction circumferentially thereof to form a ladder-like structure. The roller retainer has a plurality of slits that are spacedly defined in a direction circumferential thereof so as to extend from one axial end or the other axial end of the roller retainer to a position adjacent the other axial end or one axial end.Type: GrantFiled: February 9, 2005Date of Patent: August 3, 2010Assignee: NTN CorporationInventors: Shingo Kono, Kousuke Obayashi, Hideki Akamatsu
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Publication number: 20100189387Abstract: A rolling bearing has a metallic member sealing member at one axial end thereof. The sealing member has a first cylinder section including a first cylinder section facing surface which is in contact with an outer peripheral surface of an inner ring, a second cylinder section connected to the first cylinder section and including a second cylinder section facing surface which faces the outer peripheral surface of the inner ring, and a flange section connected to the second cylinder section via a bend section. In a state before the sealing member is press fitted in the bearing, a radial position of the second cylinder section facing surface is closer to the flange section than a radial position of the first cylinder section facing surface. The rolling bearing has another metallic member sealing member at another axial end thereof.Type: ApplicationFiled: January 28, 2010Publication date: July 29, 2010Applicant: JTEKT CORPORATIONInventors: Takashi Masui, Junichi Kubo, Masahide Sunagawa
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Patent number: 7604465Abstract: There is provided a fluid machine able to secure a sectional area of a passage sufficient for gaseous fluid flow from a suction port to a compression mechanism, while able at the same time to achieve a reduction in size of the outline shape. In a scroll compressor where a scroll compression mechanism is housed within a housing having a funnel shaped, a compression mechanism main body of the scroll compression mechanism is arranged in a wide opening section of a front housing, and a compression mechanism driving section is arranged in a narrow section, a concave section is formed on the outside of a thrust receiving surface which is positioned on a bottom surface of the wide opening section and which supports the compression mechanism.Type: GrantFiled: February 1, 2007Date of Patent: October 20, 2009Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsuhiro Fujita, Tomohisa Moro, Takayuki Kuwahara, Kazuhide Watanabe, Tetsuzou Ukai, Norio Hioki, Hiroshi Yamazaki, Makoto Takeuchi, Takamitsu Himeno
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Publication number: 20080304782Abstract: A full complement taper roller bearing consists of an inner ring or cone having an inner track on its radially outer conical surface, and an outer ring or cup having an outer track on its radially inward conical surface and one or more rows of taper rollers having a contact angle of less than 30 degrees freely disposed between the inner and outer rings and guided between said tracks. Each row of rollers is axially located within a recess on the inner track defined by a shoulder abutment disposed at least at the edge of the inner track having the greatest diameter and each of the rollers is in contact with the inner track over the entire length of the taper roller in the axial direction of the bearing. A method of assembly is also enclosed.Type: ApplicationFiled: June 9, 2008Publication date: December 11, 2008Applicant: HANSEN TRANSMISSIONS INTERNATIONAL NVInventor: DIRK-OLAF LEIMANN
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Publication number: 20080232733Abstract: A drawn cup roller bearing includes: a drawn cup outer ring that includes a cylindrical portion serving as an outer raceway surface, a first rib which is formed at one axial end portion of the cylindrical portion and is bent radially inwardly such that a step portion is formed at an intermediate portion of the first rib, and a second rib which is formed at the other axial end portion of the cylindrical portion and is radially inwardly folded back; an annular seal which is press-fitted in the step portion; and a cage which holds a plurality of rollers and is inserted into the drawn cup outer ring from the second rib to be mounted in the drawn cup outer ring in such a manner that the cage is retained against withdrawal by the step portion and the plurality of rollers is retained against withdrawal by the second rib.Type: ApplicationFiled: March 18, 2008Publication date: September 25, 2008Applicant: JTEKT CORPORATIONInventor: Kenichi Hashimoto
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Publication number: 20080226214Abstract: The invention relates to a roller bearing comprising at least one internal ring, roller set and a cage, wherein the rollers are at least axially maintained by lateral walls of the cage, the internal ring comprises a roller running path in the form of a truncated cone outer jacket and a hollow cylindrical section of the internal ring forming an integral part therewith is connected on the axial continuation of the roller running path at least on the side of the small diameter of the truncated cone.Type: ApplicationFiled: September 29, 2006Publication date: September 18, 2008Applicant: SCHAEFFLER KGInventors: Guenther Glas, Horst Doeppling
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Patent number: 7234873Abstract: A cage, rollers and solid lubricant are all formed integrally into a complete unitary molding with using difference in thermal expansion in a mold. Assembling the complete unitary molding into the race in the rolling-contact bearing is made easier. The complete unitary molding is made such that the rollers remain exposed partially at their rolling surfaces above the inside circular surface of the complete unitary molding while the solid lubricant on the outside circular surface of the complete unitary molding is squeezed out from between the rolling surfaces of the rollers and the inside circular surface of the outside mold upon molding operation, thereby getting the rolling surfaces of the rollers exposed partially. The mold is composed of an outside mold, an inside mold and an intermediate mold, which is made of a substance larger in thermal expansion than other substance for the outside and inside molds.Type: GrantFiled: February 26, 2004Date of Patent: June 26, 2007Assignee: Nippon Thompson Co., Ltd.Inventors: Masataka Kato, Toshiaki Nishimatsu
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Patent number: 7159316Abstract: A module corner assembly wherein a wheel hub is permanently attached to a knuckle and various surfaces on the wheel hub and knuckle are machined in a same fixture utilized in holding the knuckle to deform an end on the wheel hub against a cone of a bearing. When a rotor is thereafter attached to the wheel hub it is also machined in the same fixture such that a perpendicular relationship is established between the axis of the wheel bearing and braking surfaces on the rotor and as a result a desired lateral run out relationship is achieved between the axis of the bearing and rotor surfaces.Type: GrantFiled: October 28, 2004Date of Patent: January 9, 2007Assignee: Robert Bosch GmbHInventors: David Thomas Sadanowicz, Larry William Brackmann, Don Paul Ward
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Patent number: 7117599Abstract: A knuckle (16) for a corner assembly (10, 210, 310) wherein a cylindrical body (18) has an outboard race (39) and an inboard race (45) located therein for correspondingly receiving a first roller assembly (52) and a second roller assembly (94) carried by a wheel hub (56) such that brake engagement surfaces (12a) and (12b) on a rotor (12) are located in a parallel relationship with faces on a friction members (14a) and (14b) associated with caliper (14) and perpendicular with the axis of the wheel hub (56) to obtain a desired lateral run out relationship between the rotor (12) and the axis of the first (52) and second (94) roller assemblies retained in the wheel hub (56).Type: GrantFiled: October 28, 2004Date of Patent: October 10, 2006Assignee: Robert Bosch GmbHInventors: David Thomas Sadanowicz, Larry William Brackmann
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Patent number: 6554481Abstract: A compressor bearing assembly for use in a compressor comprises an anti-friction rotation bearing and a compressor component. The anti-friction rotation bearing, has a first and second side. The compressor component has a bearing press fitting hole. The bearing press fitting hole has a mouth and a bottom and is formed in the compressor component and is adapted to receive a first side of a rotation bearing. The bearing press fitting hole has a first inner diameter at its mouth and a second inner diameter in the vicinity of its bottom. The first inner diameter is less than the second inner diameter. The structure for the compressor bearing in this invention may strongly and uniformly fixes the rotation bearing. Further, this structure prevents the rotation bearing from slanting within the pressing hole and prevents undesirable adherence between the rotation bearing and the press fitting hole. As a result, the durability of the rotation bearing and the shaft are improved.Type: GrantFiled: September 19, 2001Date of Patent: April 29, 2003Assignee: Sanden CorporationInventor: Shigeru Ito
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Patent number: 6386764Abstract: A single row tapered roller bearing enables an axle shaft to rotate in an axle housing and further confines the shaft axially with respect to the housing. The bearing includes a cup that is fitted into the housing and a cone that is fitted around a bearing seat on the shaft and also tapered rollers located between raceways on the cup and cone. Radial loads and thrust loads in one axial direction are transferred to the rollers at the raceways. Thrust loads in the other axial direction are transferred to the rollers at a confining surface on the cup at the large ends of the rollers and at another confining surface on a backing collar located at the small ends of the rollers. The backing collar fits over the bearing seat on the shaft with an interference fit and captures the cone on the bearing seat.Type: GrantFiled: September 7, 2000Date of Patent: May 14, 2002Assignee: The Timken CompanyInventors: W. Norman Moore, Thomas J. Rybkoski
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Patent number: 6176623Abstract: A roller bearing comprises a cylindrical inner race having axial ends folded over an outside surface thereof. A cylindrical roller cage, having a plurality of axially disposed roller pockets with roller retainer bars at radially outer edges thereof, is slid onto the folded ends of the inner race; and a plurality of cylindrical rollers is snap fitted into the roller pockets between the folded ends of the inner race. The roller cage pilots radially on the folded ends of the inner race, and the roller ends pilot axially against the folded ends of the roller cage.Type: GrantFiled: September 8, 1999Date of Patent: January 23, 2001Assignee: The Torrington CompanyInventor: Robert E. Zeigler
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Patent number: 6161964Abstract: There is provided a shaft and sleeve assembly structure for an automatic transmission which can be assembled by inserting a shaft into a needle roller bearing so that a seal ring fitted to the shaft is allowed to pass through inside of the needle roller bearing without causing a seal ring to be damaged. In this assembly structure, in the process of inserting the shaft 11 into the needle roller bearing 25, the seal ring 22 fitted to the shaft 11, upon contact with a radially inner end portion 36A of a flange portion 36 of an outer ring 33 of the needle roller bearing 25, is allowed to pass through the radial inside of the flange portion 36 smoothly along a curved surface 37 bent axially inward. Further, the seal ring 22 fitted to the shaft 11, upon contact with axial one end of a cage 32 of the needle roller bearing 25, is allowed to pass through the radial inside of a flange portion 38 provided at axial one end of the cage 32 smoothly along a curved surface 41 of the flange portion 38.Type: GrantFiled: May 14, 1999Date of Patent: December 19, 2000Assignee: Koyo Seiko Co., Ltd.Inventor: Tadashi Fukao
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Patent number: 6019518Abstract: A cylindrical roller bearing is disclosed. Roller insertion slots are closed without forming a screw hole, but the closing of the insertion slot is firm, and the aesthetic appearance of the bearing is very perfect. Rollers 4 are inserted into operating channels 2c and 3c of inner and outer races 2 and 3 of the roller bearing 1. Insertion slots 2b and 3b are formed respectively on the collars 2a and 3a of the inner and outer races 2 and 3 to form a roller insertion hole 5 for inserting the rollers 4. The roller insertion holes 5 may be circular, rectangular, twin-arcuate or the like. After filling the rollers 4 into the operating channels 2c and 3c, a closing piece 6 is press-fitted into the insertion hole 5. The closing piece 6 may consist of two pieces 6a and 6b, and has a size larger than that of the insertion hole 5 by about 0.01 mm. Thus the closing pieces are firmly fitted into the insertion slots to such a degree that the closing pieces will never depart under any operating conditions.Type: GrantFiled: March 31, 1998Date of Patent: February 1, 2000Inventor: Suk Tae Yoon
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Patent number: 5567059Abstract: To provide good cage guidance in a window cage for a preferable flangeless spherical roller bearing in order that the bearing might achieve higher loads, the cage includes two annular axially spaced apart ribs and transverse ribs that extend between the annular ribs and define cage pockets. At least one and preferably two and preferably opposite pockets of the cage are loading pockets. The annular ribs are radially outside the pitch circle of the bearing, but at the loading pockets, those ribs are recessed inward nearly on the pitch circle of the bearing and preferably outward thereof about the thickness of the rib material. The angle between the center of the loading pocket and the adjacent pocket is larger than the angle between the centers of other adjacent pockets to facilitate loading of the loading pockets.Type: GrantFiled: May 24, 1995Date of Patent: October 22, 1996Assignee: FAG Kugelfischer Georg Schafer AGInventors: Michael Weigand, Werner Ganss, Martin Grehn
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Patent number: 5518093Abstract: An overrunning clutch assembly inserted between a rotary driving element and a rotary driven element and comprising a locking element overrunning clutch and a radial rolling bearing arranged adjacent to each other with a gap therebetween, an axial securing arrangement provided for the two components of the overrunning clutch assembly comprising rims extending laterally from respective cages of the overrunning clutch assembly and the radial rolling bearing, characterized in that the axial securing (3, 3a to 3f) of the locking element overrunning clutch (2,20) and the radial rolling bearing (15,25) is effected in the gap (14, 14a to 14f).Type: GrantFiled: April 19, 1995Date of Patent: May 21, 1996Assignee: Ina Walzlager Schaeffler KGInventors: Gunter Hartig, Ernst Neuwirth
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Patent number: 5516215Abstract: A roller-bearing cage prevents bearing rollers from falling out of the cage when the outer ring of the bearing is away from the cage, for example, when the outer ring is removed, the cage is removed or the cage is swung out from the outer ring. The rollers are held in place by holding knobs formed on a radially outwardly directed cage flange located at the axial end of the rollers. The knobs are located radially outwardly of the pitch circle of the rollers, are spaced circumferentially apart sufficient to be out of contact with the rollers when the rollers are in the operating position of the bearing in contact with the outer and inner ring, yet are spaced close enough together that the space between two holding knobs is less than the diameter of the roller lying opposite the knobs. The knobs are formed on a resilient, outwardly directed cage flange which moves resiliently upon the snapping in and out of the rollers in the cage. The knobs may be hemispherical or frustoconically shaped.Type: GrantFiled: May 5, 1995Date of Patent: May 14, 1996Assignee: FAG Kugelfischer Georg Schafer AGInventor: Klaus Bergmann
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Patent number: 5501533Abstract: A roller bearing assembly having an inner raceway member and an outer raceway member defining an inner raceway bearing surface and an outer raceway bearing surface spaced from one another. Both members are preferably annular and have a bearing cage member positioned therebetween for retaining a plurality of individual cylindrically shaped roller bearings therein. The bearing cage member includes a peripherally extending rim adapted to extend into a peripheral groove defined in the outer race member for maintaining axial retention therebetween. The inner race member includes an inner race shoulder adjacent the inner race bearing surface and extending outwardly therefrom beyond the outer race bearing surface for facilitating axial retention of the inner race member. A clocking tab may be defined on the peripheral rim adapted to extend into a clocking slot defined in the peripheral slot to facilitate angular orientation or clocking between the bearing cage member and the outer race member.Type: GrantFiled: June 3, 1995Date of Patent: March 26, 1996Assignee: Roller Bearing Company of AmericaInventors: Richard R. Williams, Peter C. Preston, Willard C. Macfarland, Jr.
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Patent number: 5343991Abstract: A overrunning clutch having a lateral rolling bearing, wherein clamping elements (21) and rolling elements (23) are carried in respective separate cages (22 and 24) between an inner ring (15) and an outer ring (16). The rings are provided with tracks (17, 19 and 20) adapted to the clamping and rolling elements. The breadth of the rings exceeds the length of the clamping elements (21), the cages (22 and 24) adjoin one another, and at least one of the cages (22) is snap-fitted and axially secured by means of radial projections (27) in an annular groove (28) in one of the rings. The clamping element cage (22) has, adjacent the rolling bearing, an axial shoulder (25) and a radial flange part (26). The rolling bearing cage (24) has axially projecting annular beads (29 and 30), one of which merges into a radial guide flange (31), which is guided axially between the annular shoulder (18) and the adjacent flange part (26) of the free-wheel cage (22) and radially by the shoulder (25).Type: GrantFiled: May 3, 1993Date of Patent: September 6, 1994Assignee: Ford Motor CompanyInventors: Vladimir Premiski, Wilhalm Wehren, Mark Silk, Sieghart Biedermann