公开(公告)号：US12117045B2

公开(公告)日：2024-10-15

申请号：US17912360

申请日：2021-03-19

申请人： NTN CORPORATION

发明人： Hayato Kawaguchi ,  Takahiro Wakuda

IPC分类号： F16C33/78 ,  F16C19/06 ,  F16C33/80

CPC分类号： F16C33/782 ,  F16C19/06 ,  F16C33/7823 ,  F16C33/805

摘要： A sealed rolling bearing includes slingers and seal members disposed between an inner ring and an outer ring, and sealing a rolling element installation area. The radially inner and outer portions of each slinger are bent axially inwardly such that a labyrinth portion is defined between the radially outer bent portion of the slinger and the radially inner surface of the outer ring, the labyrinth portion having a path length, in the axial direction of the bearing, longer than the material thickness of the slinger.

公开(公告)号：US12097787B2

公开(公告)日：2024-09-24

申请号：US18043817

申请日：2022-01-26

申请人： Toyota Boshoku Kabushiki Kaisha ,  NTN CORPORATION

发明人： Kunihiro Mikasa ,  Yasumasa Hibi ,  Kyohei Sasanuma ,  Kengo Watanabe

IPC分类号： F16D41/063 ,  B60N2/16 ,  F16D41/08

CPC分类号： B60N2/1635 ,  F16D41/063 ,  F16D41/084

摘要： A clutch unit includes an operation lever, an operation member, an input-side clutch, an output-side clutch, and a bottomed cylindrical housing. The input-side clutch includes an input-side inner ring member and an operation bracket. The operation bracket includes an engagement portion that engages with the input-side inner ring member, a facing portion that faces the bottom surface of the housing with a gap therebetween, a fastened portion that penetrates a through hole formed in the bottom surface of the housing and is fastened to the operation member, and a sliding-contact portion that extends from the facing portion toward the bottom surface of the housing and comes into sliding-contact with the bottom surface of the housing.

公开(公告)号：US12064993B2

公开(公告)日：2024-08-20

申请号：US17618738

申请日：2020-06-16

申请人： NTN Corporation

发明人： Tasuku Furukawa ,  Shun Tamaki

IPC分类号： B60B27/00 ,  F16C19/18 ,  F16J15/3232

CPC分类号： B60B27/0094 ,  B60B27/0005 ,  F16C19/183 ,  F16J15/3232 ,  B60B2380/12 ,  B60B2380/75 ,  F16C2326/02

摘要： A bearing device for a wheel, which has improved axial assembly accuracy of a sealing member by reducing the amount of springback. The bearing device for a wheel comprises an inner sealing member that blocks an inner opening end of an annular space formed by an outer ring and an inner ring. A sealing ring of the inner sealing member has a core metal fitting in the outer ring and an elastic member joined to the core metal. The elastic member has: a pressing part that is pressed inward in the axial direction when the sealing ring is press-fitted into the outer ring; and a non-pressing part that is not pressed inward in the axial direction when the sealing ring is press-fitted into the outer ring, wherein the axial thickness of the pressing part is thinner than the axial thickness of the non-pressing part.

公开(公告)号：US20240270017A1

公开(公告)日：2024-08-15

申请号：US18569371

申请日：2022-06-07

申请人： NTN Corporation

发明人： Shouta MIZUSHIMA

IPC分类号： B60B27/00

CPC分类号： B60B27/0005 ,  B60B27/0073 ,  B60B2380/12

摘要： A wheel bearing device for which the work of grinding a wheel hub is simplified. The wheel hub (3) has an inside track groove (3c), a seal land part (3d), a recess (3m), and a flange surface (3k). An outer-side sealing member (10) is provided with a core metal (11) and a sealing member (12). The sealing member includes a contact lip (12d) and a labyrinth lip (12e) facing the recess across a gap. The recess has a bottom (313) located between an outer diameter-side edge (311) and an inner diameter-side edge (312), and a tapered surface (314) that extends in the radial direction from the outer diameter-side edge toward the bottom and tilts toward one end of the axial direction going from the outer diameter-side edge toward the bottom.

公开(公告)号：US12018717B2

公开(公告)日：2024-06-25

申请号：US17799350

申请日：2021-01-19

申请人： NTN Corporation

发明人： Tomoki Kakuko

IPC分类号： F16C19/18 ,  B60B27/00 ,  F16C41/00

CPC分类号： F16C19/181 ,  B60B27/0068 ,  B60B27/0073 ,  F16C19/186 ,  F16C41/00 ,  F16C2233/00 ,  F16C2326/02

摘要： In a bearing cap in which a sensor support part is formed on a bottom surface section of a cap body and in which an insertion hole for a rotational speed sensor is formed in the sensor support part, a recess that accommodates a tip portion of the rotational speed sensor is formed in the portion of the bottom surface section where the sensor support part is formed. The sensor support part includes a first wall section and a second wall section that are disposed, facing each other across a virtual line L passing through a center axis G1 of the bottom surface section and a center axis G2 of the insertion hole, and that are formed along the circumferential edge of the recess. Protrusions protruding from the bottom surface section are continuously provided on the outer circumferential surfaces of the first wall section and the second wall section.

公开(公告)号：US20240167518A1

公开(公告)日：2024-05-23

申请号：US18282332

申请日：2022-03-11

申请人： NTN CORPORATION

发明人： Taku ITAGAKI ,  Shota KAWATA ,  Tatsuro SUGIYAMA

IPC分类号： F16D3/205

CPC分类号： F16D3/2055 ,  F16D2200/0021 ,  F16D2250/0053

摘要： In a tripod type constant velocity universal joint 1 of a double roller type, R/PCD≥0.0850 and t/PCD≥0.145, where PCD is a pitch circle diameter of a roller guide surface 6 of an outer joint member 2. R is a radius of curvature at an intermediate portion between a body portion 31 and a leg shaft 32 of a tripod member 3, and t is a minimum distance from a large-diameter portion 34a of a spline 34 of the tripod member 3 to an intermediate portion 33.

公开(公告)号：US20240159271A1

公开(公告)日：2024-05-16

申请号：US18282358

申请日：2022-03-14

申请人： NTN CORPORATION

发明人： Masashi FUNAHASHI ,  Teruaki FUJIO ,  Masaya INOUE

IPC分类号： F16C19/18 ,  F16D1/06 ,  F16D3/16

CPC分类号： F16C19/183 ,  F16D1/06 ,  F16D3/16 ,  F16C2326/02

摘要： An outer joint member and a hub wheel are coupled to be able to transmit torque by meshing face splines respectively provided and applying a tightening force in an axial direction between both the face splines. Shapes of tooth surfaces of the face splines are determined such that, when bringing the face splines close to each other in the axial direction and meshing them with each other, tooth surfaces of the face splines first come into contact with each other in, among an outer diameter portion of a meshing region between both the face splines, an inner diameter portion, and an intermediate portion sandwiched between the outer diameter portion and the inner diameter portion, one of the outer and inner diameter portions, and then the tooth surfaces of both the face splines come into contact with each other in the other of the outer and inner diameter portions.

公开(公告)号：US20240151269A1

公开(公告)日：2024-05-09

申请号：US18280083

申请日：2022-03-03

申请人： NTN CORPORATION

发明人： Goro NAKAO

IPC分类号： F16C33/41

CPC分类号： F16C33/416 ,  F16C33/418

摘要： A cage is provided which is less likely to be deformed by a centrifugal force, and in which the strength of a weld is less likely to decrease. Each horn portion includes a base wall axially connected to a ring portion, and located between pockets; and a pair of claws separated from each other. The pair of claws each has a pocket inner surface facing the pocket; and an opposed surface (14) on the side opposite from the pocket inner surface. The base wall includes a pair of connection portions axially connecting the respective claws to the ring portion; and an intermediate portion circumferentially connecting the connection portions to each other. A weld is disposed in a resin area consisting of one of the claws, one of the connection portions, and a circumferential section of the ring portion.

公开(公告)号：US20240151265A1

公开(公告)日：2024-05-09

申请号：US18281609

申请日：2022-03-11

申请人： NTN CORPORATION

发明人： Teruaki FUJIO

IPC分类号： F16C19/18

CPC分类号： F16C19/186 ,  F16C2326/02

摘要： In a wheel bearing device, an axial end surface of a hub 1 of a wheel bearing 6 and an axial end surface of an outer joint member 20 of a constant velocity universal joint 7 are coupled by a recess-and-protrusion fitting structure (face spline structure X) in a torque transmittable manner. An inner peripheral surface of the hub 1 of the wheel bearing 6 and an outer peripheral surface of the outer joint member 20 of the constant velocity universal joint 7 are fitted to each other.

公开(公告)号：US20240141953A1

公开(公告)日：2024-05-02

申请号：US18280782

申请日：2022-02-21

申请人： NTN CORPORATION

发明人： Shinji KOMATSUBARA ,  Fuyuki ITO ,  Toshiaki NIWA

IPC分类号： F16C33/10 ,  F16C17/10

CPC分类号： F16C33/104 ,  F16C17/10

摘要： An internal pore of a sintered metal bearing 8 is impregnated with a lubricating fluid, and a radial dynamic pressure generation portion 8a1 is formed on an inner peripheral surface 8a. An axial dimension L is 4.8 nm or less, a thickness dimension t is 0.5 mm or more and 1.5 nm or less, and a ratio L/D2 of the axial dimension L to an outer diameter dimension D2 is 0.24 or more and 0.6 or less.