公开(公告)号：US11668348B2

公开(公告)日：2023-06-06

申请号：US17314214

申请日：2021-05-07

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar ,  Johannes Klaus Zang

IPC分类号： F16C33/78 ,  B60B27/00 ,  F16C33/80

CPC分类号： F16C33/7896 ,  B60B27/0073 ,  F16C33/783 ,  F16C33/7816 ,  F16C33/7889 ,  F16C33/805 ,  F16C2326/02

摘要： A secondary sealing device is for a wheel bearing assembly including a fixed inner axle with an outer circumferential surface and a bearing inner race, an outer hub rotatable about the inner axle and having an inner circumferential surface and a bearing outer race, rolling elements disposed between the inner and outer races, and a primary seal(s) connected with the inner axle and sealingly engaged with the outer hub. The secondary sealing device includes a rigid annular body having an inner radial end coupled with the inner axle and an outer radial end spaced radially inwardly from the inner circumferential surface of the outer hub so as to define an annular gap between the body and the outer ring. The body is located between the primary seal and an axial end of the hub so as to provide a barrier configured to prevent contaminants from contacting the primary seal.

公开(公告)号：US20230015151A1

公开(公告)日：2023-01-19

申请号：US17373954

申请日：2021-07-13

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/80 ,  F16J15/447

摘要： A seal assembly for a truck wheel hub assembly includes an inner annular case having an axial portion disposable about an axle and a radial portion extending radially outwardly from the axial portion. An outer annular case is coupleable with a hub bore and has a radial portion extending radially inwardly from the bore. An annular elastomeric seal member has a base portion disposed on the outer case and at least one flexible axial seal lip with a first end integrally formed with the base portion and a second, free end sealingly engageable with the radial portion of the inner case. A radial projection extends radially inwardly from the outer case radial portion and has an inner radial end located adjacent to and spaced radially outwardly from the inner case axial portion or an outer circumferential surface disposed about the axle so as to form a labyrinth seal gap.

公开(公告)号：US20200166081A1

公开(公告)日：2020-05-28

申请号：US16684699

申请日：2019-11-15

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/76 ,  F16C43/04 ,  F16C33/66 ,  F16J15/34

摘要： A bearing seal includes at least one first metal-plate element having an attachment region for attaching the first metal-plate element to a bearing inner ring, at least one seal element attached to the first metal-plate element, and at least one spring element configured to press at least one region of the seal element in a radially outward direction. Also a wheel bearing assembly including the bearing seal.

公开(公告)号：US11796003B2

公开(公告)日：2023-10-24

申请号：US17535655

申请日：2021-11-25

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/78 ,  B60B27/00 ,  F16C33/80 ,  F16C19/38

CPC分类号： F16C33/7816 ,  B60B27/0073 ,  F16C33/7886 ,  F16C33/805 ,  F16C19/386 ,  F16C2326/02

摘要： A seal assembly is for a wheel bearing assembly including an inner axle and a rotatable outer hub disposed about the axle. The seal assembly includes an annular inner case having an axial portion disposable about the axle and a radial portion extending radially outwardly from the axial portion. A seal is coupled with the hub and has sealing lip(s) sealingly engageable with the annular case. Further, an annular flinger has an inner radial end coupled with or integrally formed with the annular inner case and an outer radial end including an outer axial portion spaced radially inwardly from the inner circumferential surface of the hub so as to define an annular labyrinth gap. The flinger includes a central portion that is at least partially frustoconical and extends between the inner and outer axial ends so as to obstruct an annular space between the inner case and the seal.

公开(公告)号：US11761488B2

公开(公告)日：2023-09-19

申请号：US17535660

申请日：2021-11-25

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/80 ,  B60B27/00 ,  F16C33/78

CPC分类号： F16C33/805 ,  B60B27/0073 ,  F16C33/783 ,  F16C33/7886 ,  F16C33/7896 ,  F16C2326/02

摘要： A wheel bearing assembly includes a fixed inner axle with at least one inner race, a rotatable outer hub disposed about the axle and having at least one outer race and rolling elements disposed between the inner and outer races. An annular seal is disposed between the axle and the hub and is located adjacent to the inner and outer races. A shield is spaced axially from the seal such that the seal is disposed between the rolling elements and the shield. The shield includes a rigid annular body having an outer radial end coupled with the outer hub, preferably by a plurality of couplers, and an inner radial end defining a central opening for receiving the axle and located adjacent to the inner axle or a component disposed upon the axle. As such, the annular body substantially obstructs an annular interior space to prevent substances from contacting the seal.

公开(公告)号：US20230160432A1

公开(公告)日：2023-05-25

申请号：US17535655

申请日：2021-11-25

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/78 ,  F16C19/38

CPC分类号： F16C33/7816 ,  F16C19/38 ,  F16C2326/02

摘要： A seal assembly is for a wheel bearing assembly including an inner axle and a rotatable outer hub disposed about the axle. The seal assembly includes an annular inner case having an axial portion disposeable about the axle and a radial portion extending radially outwardly from the axial portion. A seal is coupled with the hub and has sealing lip(s) sealingly engageable with the annular case. Further, an annular flinger has an inner radial end coupled with or integrally formed with the annular inner case and an outer radial end including an outer axial portion spaced radially inwardly from the inner circumferential surface of the hub so as to define an annular labyrinth gap. The flinger includes a central portion that is at least partially frustoconical and extends between the inner and outer axial ends so as to obstruct an annular space between the inner case and the seal.

公开(公告)号：US20200047550A1

公开(公告)日：2020-02-13

申请号：US16530635

申请日：2019-08-02

申请人： Aktiebolaget SKF

发明人： Rico Dittmar ,  Roderich Schultze

IPC分类号： B60B27/00 ,  F16C19/14

摘要： A bearing assembly configured to rotationally support a first component relative to a second component includes at least one bearing and at least one closure element configured to close an opening in the first component, which opening is disposed axially adjacent to the bearing. The closure element may be a cured body of foam that conforms to the shape of the opening or a ring mounted on the first component such that it covers the opening.

公开(公告)号：US12000434B2

公开(公告)日：2024-06-04

申请号：US17373954

申请日：2021-07-13

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/80 ,  F16C33/78 ,  F16J15/447

CPC分类号： F16C33/80 ,  F16C33/7883 ,  F16J15/447 ,  F16C2326/02

摘要： A seal assembly for a truck wheel hub assembly includes an inner annular case having an axial portion disposable about an axle and a radial portion extending radially outwardly from the axial portion. An outer annular case is coupleable with a hub bore and has a radial portion extending radially inwardly from the bore. An annular elastomeric seal member has a base portion disposed on the outer case and at least one flexible axial seal lip with a first end integrally formed with the base portion and a second, free end sealingly engageable with the radial portion of the inner case. A radial projection extends radially inwardly from the outer case radial portion and has an inner radial end located adjacent to and spaced radially outwardly from the inner case axial portion or an outer circumferential surface disposed about the axle so as to form a labyrinth seal gap.

公开(公告)号：US20230160434A1

公开(公告)日：2023-05-25

申请号：US17535667

申请日：2021-11-25

申请人： AKTIEBOLAGET SKF

发明人： Rico Dittmar

IPC分类号： F16C33/78 ,  F16J15/02 ,  F16J15/3252 ,  F16C33/80

CPC分类号： F16C33/7826 ,  F16J15/022 ,  F16J15/3252 ,  F16C33/805

摘要： An axial seal assembly includes an inner annular shield having an axial portion disposeable about the shaft at a position adjacent to the bearing and a radial portion extending radially outwardly from the axial portion. An outer annular seal has an axial portion engageable with the outer member bore, a radial portion extending radially inwardly from the axial portion and on or more axial sealing lips engaged with the shield radial portion. The seal radial portion is spaced from the shield radial portion by a predetermined axial distance during use. The seal has at least one coupler section engageable with the shield radial portion or the shield axial portion when an axial spacing distance between the seal radial portion and the shield radial portion is less than the predetermined distance to retain the shield coupled with the seal when the seal assembly is separate from an outer member bore.

公开(公告)号：US20230040525A1

公开(公告)日：2023-02-09

申请号：US17866758

申请日：2022-07-18

申请人： AKTIEBOLAGET SKF

发明人： Volker WENDT ,  Rico Dittmar

IPC分类号： F16C41/00 ,  F16C19/38 ,  F16C33/78

摘要： A wheel bearing assembly for trucks includes a brake element and a wheel adapter defining a rotating component, an axle element defining a stationary component, and a multi-row, preferably double-row, bearing unit. The bearing unit has a first bearing ring, a second bearing ring and a plurality of rolling elements disposed between the first and the second bearing ring. The first bearing ring is connected to a drive shaft, the second bearing ring is connected to the axle element and the wheel adapter is configured to connect the first bearing ring to the wheel and the brake element. A shield is disposed between the brake element and the first bearing ring and/or disposed between the brake element and the axle element and is configured to shield a space defined by the first bearing ring, the wheel adapter and the brake element from entry of particles and/or water.