公开(公告)号：US12110901B2

公开(公告)日：2024-10-08

申请号：US17148778

申请日：2021-01-14

申请人： GRUNDFOS HOLDING A/S

发明人： Gunnar Gaba

IPC分类号： F04D29/02 ,  F04D13/06 ,  F04D29/046 ,  F04D29/047 ,  F04D29/06 ,  F04D29/58 ,  F04D29/62 ,  F16C33/76 ,  F16C35/02

CPC分类号： F04D29/046 ,  F04D13/0606 ,  F04D13/0633 ,  F04D13/0646 ,  F04D29/02 ,  F04D29/0465 ,  F04D29/0473 ,  F04D29/061 ,  F04D29/586 ,  F04D29/628 ,  F16C33/76 ,  F16C35/02 ,  F16C2360/44 ,  F16C2361/63 ,  F16C2361/65

摘要： A wet-running pump bearing retainer (29) includes a radial bearing configured for a lubrication film between an inner sliding surface (41) and a rotor shaft (13) of a pump (1). The radial bearing is fitted into a radially inner section (49) that defines an axial fluid channel (45), located at a first radial distance (D1) to a rotor axis (R) and providing a fluid flow path (F1) in a first axial flow direction. The first radial distance is larger than a radius (D0) of the inner sliding surface. A radially outer section (51) extends from the inner section and defines a second axial fluid channel (47) for a flow path (F2) in a second axial flow direction, opposite to the first flow direction. The second axial fluid channel is located at a second radial distance (D2) to the rotor axis, which is larger than the first radial distance.

公开(公告)号：US20240229936A9

公开(公告)日：2024-07-11

申请号：US18277945

申请日：2021-12-16

申请人： Hitachi Astemo, Ltd.

发明人： Shoichi ICHIKAWA ,  Daiki TSUTSUMI ,  Toshiyuki MASUDA ,  Kenichiro ISHIKURA

IPC分类号： F16J15/52 ,  F16C3/02 ,  F16C33/76

CPC分类号： F16J15/52 ,  F16C3/02 ,  F16C33/76 ,  B60K17/22

摘要： A water-impermeable cover includes an opening part extending toward an opening part of a holding ring of a stub shaft of a propeller shaft, and is disposed to face the opening part of the holding ring. The water-impermeable cover is fixed at a position to face the opening part of the holding ring of the stub shaft, and the opening part of the water-impermeable cover extends to approach the opening part of the holding ring: therefore, even if muddy water etc. scatters obliquely toward the opening part of the holding ring, the risk of muddy water etc. entering the opening part of the holding ring is reduced, and as a result, also the risk of muddy water etc. entering an interior of a center bearing is reduced.

公开(公告)号：US11965554B2

公开(公告)日：2024-04-23

申请号：US17767979

申请日：2020-09-02

申请人： Schaeffler Technologies AG & Co. KG

发明人： Lukas Schraut ,  Bernd Barthel ,  Branko Katana

IPC分类号： F16C33/60 ,  F16C19/18 ,  F16C19/36 ,  F16C19/38 ,  F16C19/48 ,  F16C19/54 ,  F16C33/76 ,  F16C33/78

CPC分类号： F16C33/60 ,  F16C19/18 ,  F16C19/364 ,  F16C19/386 ,  F16C19/48 ,  F16C19/543 ,  F16C33/768 ,  F16C33/7816 ,  F16C2326/02

摘要： A wheel bearing unit includes an outer ring, a first inner ring with a first axial end face, first rolling elements arranged between the outer ring and the first inner ring, a second inner ring with a second axial end face, facing the first axial end face, second rolling elements arranged between the outer ring and the second inner ring, and a sealing device for sealing an interface of the first inner ring and the second inner ring. The sealing device includes an annular retaining element and a sealing element provided on the annular retaining element. The sealing element is a sealing ring that includes first and second contact points contacting the annular retaining element, a third contact point contacting the first inner ring, and a fourth contact point contacting the second inner ring. At least one of the contact points has a flat face.

公开(公告)号：US20240044373A1

公开(公告)日：2024-02-08

申请号：US18223728

申请日：2023-07-19

申请人： AKTIEBOLAGET SKF

发明人： Riccardo Nardicchia

IPC分类号： F16C33/76 ,  F16C33/58 ,  F16C33/64 ,  F16C33/78

CPC分类号： F16C33/763 ,  F16C33/583 ,  F16C33/64 ,  F16C33/782 ,  F16C33/7833 ,  F16C2326/02 ,  F16C2226/30

摘要： A sealing system for a roller bearing including a first annular shield and a first sealing cover. A first face of each that includes a coupling surface that is covered with a rubbery coating made of a synthetic rubber. The coupling surface of the first annular shield is coupled to a corresponding coupling surface of a rotating ring of the roller bearing, and the coupling surface of the first sealing cover is coupled to a corresponding coupling surface of an outer ring of the roller bearing. Each of the first annular shield and the first sealing cover is pressed from a metal sheet with a first face entirely rubberized with the rubbery coating.

公开(公告)号：US11846322B2

公开(公告)日：2023-12-19

申请号：US17713273

申请日：2022-04-05

申请人： AKTIEBOLAGET SKF

发明人： Pasquale Frezza ,  Fabio Falaschi ,  Andrea A. Bertolini ,  Fabio Cavacece

IPC分类号： F16C35/04 ,  F16C33/72 ,  F16C33/76

CPC分类号： F16C35/042 ,  F16C33/723 ,  F16C33/76

摘要： A support assembly for a movable shaft includes a bearing unit that receives the shaft, a casing, and a cover. The cover includes an annular coupling portion extending towards a radially external lateral surface of the casing. The annular coupling portion has circumferentially spaced teeth projecting from a radially inside surface thereof. The lateral surface includes an annular seat that receives the teeth. The annular seat includes an annular groove axially spaced with respect to a front edge of the casing that defines an opening of the casing and is connected to axial grooves that interrupt radially at least part of the front edge of the casing. A bottom wall of the annular groove has depressions alternating with projections offset with the axial grooves. The annular coupling portion includes radially internal projections that engage with the lateral surface of the casing along portions free of axial grooves.

公开(公告)号：US20230323918A1

公开(公告)日：2023-10-12

申请号：US18130451

申请日：2023-04-04

申请人： AKTIEBOLAGET SKF

发明人： Christoph KERN ,  Emmanuel PICHLMAIER ,  Alfred SCHWAPPACH ,  Jens BERGMANN

IPC分类号： F16C33/76 ,  F16C19/28 ,  F16C33/78

CPC分类号： F16C33/768 ,  F16C19/28 ,  F16C33/783 ,  F16C33/7823 ,  F16C2320/23

摘要： An axially supporting rolling-element bearing of a rolling mill shaft includes an inner ring having a raceway, an outer ring having a raceway and a plurality of rolling elements on the raceways between the rings. An outer surface of the outer ring includes an opening such as a groove that faces radially outward and contains a seal element. The seal element includes a seal lip that extends out of the groove. When the rolling element bearing is placed in a bore of a housing, the outer ring is spaced from the bore by the seal element.

公开(公告)号：US11725694B2

公开(公告)日：2023-08-15

申请号：US17555567

申请日：2021-12-20

申请人： RAYTHEON TECHNOLOGIES CORPORATION

发明人： Todd A. Davis ,  Dale C. Humphries

IPC分类号： F16C33/76

CPC分类号： F16C33/76 ,  F16C2360/23

摘要： A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a bearing compartment, a seal runner, a seal configured to cooperate with the seal runner to seal the bearing compartment, and a catcher in contact with the seal runner to minimize deflection of the seal runner. A method is also disclosed.

公开(公告)号：US11460074B2

公开(公告)日：2022-10-04

申请号：US16932073

申请日：2020-07-17

申请人： Aktiebolaget SKF

发明人： Giorgio Missiaggia ,  Antonia Nastasi

IPC分类号： F16C33/72 ,  F16C33/76 ,  B60B27/00 ,  F16C33/58 ,  F16C33/78

摘要： Sealing device for a wheel hub assembly provided with a rolling bearing, the sealing device being provided with a shield mounted on an outer ring of the bearing and with an annular cylindrical wall having an inner lateral surface mounted on an outer lateral surface of a collar of the outer ring; and with a sealing material fixed to the shield; an annular snap catch being positioned radially inside the cylindrical wall and extending radially from the inner lateral surface through a specified radial thickness so as to be snap-fitted into a circular groove formed on the outer lateral surface of the collar, and the sealing material being positioned behind the catch before the shield is mounted on the outer ring, with a radial overall dimension smaller than the thickness of the catch.

公开(公告)号：US11378128B2

公开(公告)日：2022-07-05

申请号：US17196323

申请日：2021-03-09

申请人： Aktiebolaget SKF

发明人： Fausto Baracca ,  Ettore Bertelloni ,  Andrea A. Bertolini ,  Fabio Falaschi ,  Pasquale Frezza

IPC分类号： F16C19/06 ,  F16C23/08 ,  F16C33/78 ,  F16C33/72 ,  F16C19/34 ,  F16C33/76

摘要： A housing element having a casing provided with a spherical seat, a bearing unit located inside the spherical seat of the casing and provided with a radially inner ring, and a plastic end cover provided with a radial through-hole so that a machine shaft can be inserted inside it, the end cover being integral with the shaft and rotatable with the shaft, and the end cover being provided with an elastomeric seal for forming a static seal on the shaft.

公开(公告)号：US20220196072A1

公开(公告)日：2022-06-23

申请号：US17550000

申请日：2021-12-14

申请人： Aktiebolaget SKF

发明人： Damien Barciet ,  Vincent Bredoire

IPC分类号： F16C33/76 ,  F16C19/38 ,  F16C33/58 ,  F16C33/78

摘要： A rolling bearing providing a first ring and a second ring capable of rotating concentrically relative to one another, at least one row of rolling elements arranged between first and second raceways of the first and second rings, and at least one seal provided with at least one sealing lip. The first ring includes at least one first rolling ring having the first raceway and a first sealing ring secured to the first rolling ring. The second ring further includes at least one second rolling ring having the second raceway and a second sealing ring secured to the second rolling ring. The bearing also further includes a sealing module reversibly secured to the first and second sealing rings.