• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The rolling bearing comprises an inner ring 14, an outer ring 16, at least one row of rolling elements 18 disposed between said rings and at least one seal 22 fixed on one of the rings and comprising at least one lip internal sealing 28b cooperating with a first portion 14b of the other ring. The seal 22 further comprises at least one outer sealing lip 28c axially offset from said inner sealing lip on the outer side of the bearing. Said external sealing lip cooperates with a second portion 14c of the other ring which is distinct from said first portion 14b and located axially opposite the seal 22.
    公开号:FR3020421A1
    申请号:FR1453666
    申请日:2014-04-24
    公开日:2015-10-30
    发明作者:Benoit Arnault；Philippe Walter；Eric Baudez；Mickael Chollet
    申请人:SKF AB；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the field of rolling bearings, in particular those used in clutch release devices designed to act on the diaphragm of a clutch, in particular for a motor vehicle. Such devices comprise a rolling bearing of which one of the rings is rotating and the other is fixed, the rotating ring being provided with a radial engagement surface intended to come into contact with the end of an operating member, as for example a diaphragm of the clutch. A non-rotating operating element supports the rolling bearing and, under the action of a control member (mechanical, electrical or hydraulic), axially moves the bearing to press the driving surface of the rotating ring against the diaphragm of the clutch and operate the clutch mechanism. A self - centering or self - aligning sleeve is generally interposed between the inner ring of the rolling bearing and the operating element, said sleeve providing the axial connection between these two parts while allowing, by its elasticity, a relative radial displacement between them. The rolling bearing can thus move to obtain a radial alignment of the axes of rotation of the bearing and the diaphragm so as to self-center on it. For more details on such a rolling bearing, one can for example refer to the patent application FR-A1-2 883 347. In the rolling bearing described in this document, there is provided a seal attached to the outer ring and comprising a friction lip rubbing against a radial flange of the inner ring. Under certain operating conditions, the sealing of such a bearing may be insufficient.
    [0002] The present invention aims to remedy this disadvantage. More particularly, the present invention aims to provide a rolling bearing, in particular for clutch abutment device, having improved sealing and which is simple to manufacture and assemble. In one embodiment, the rolling bearing comprises an inner ring, an outer ring, at least one row of rolling elements disposed between said rings, and at least one seal attached to one of the rings. Said seal comprises at least one inner sealing lip cooperating with a first portion of the other ring. Said seal further comprises at least one outer sealing lip offset axially with respect to said inner sealing lip on the outer side of the bearing. Said outer sealing lip cooperates with a second portion of the other ring which is distinct from said first portion and which is located axially facing the seal. Preferably, the seal further comprises a flange on which said internal and external sealing lips are disposed, said flange being located at least partly axially facing the second portion of the other ring. The flange may comprise a radial or substantially radial portion extending towards the other ring, said inner and outer sealing lips being disposed axially on either side of said portion. Said internal sealing lip may be oriented towards the inside of the bearing in the direction of the rolling elements and said external sealing lip may be oriented towards the outside of said bearing. In a preferred embodiment, said inner sealing lip frictionally engages with the first portion of the other ring. Preferably, said inner sealing lip is mounted radially in contact with the first portion of the other ring. In a preferred embodiment, said outer sealing lip frictionally engages the second portion of the other ring. Said outer sealing lip may be mounted axially in contact with the second portion of the other ring. Alternatively, said outer sealing lip may be mounted radially in contact with the second portion of the other ring. In one embodiment, the first portion of the other ring extends axially and is radially extended by the second flange portion. The first portion may extend from a third portion defining a raceway for the rolling elements. Preferably, said inner sealing lip is annular. In one embodiment, said outer sealing lip is annular. Alternatively, the seal comprises a plurality of external sealing lips distributed over the circumference of said seal. In one embodiment, said seal is attached to the outer ring. Preferably, said other ring is made in one piece, i.e. monoblock. In one embodiment, the bearing further comprises an additional seal attached to one of the rings and comprising at least one sealing lip cooperating with the other ring and disposed axially on the opposite side to the seal compared to rolling elements. The bearing may include a self-centering sleeve mounted in the bore of the inner ring and including said additional seal. The invention also relates to a clutch release device comprising a rolling bearing as defined above. The present invention will be better understood on studying the detailed description of embodiments taken as non-limiting examples and illustrated by the accompanying drawings, in which - Figure 1 is an axial sectional view of a bearing. bearing according to a first embodiment of the invention, - Figure 2 is an axial sectional view of a rolling bearing according to a second embodiment of the invention, - Figure 3 is a perspective view of a bearing seal of FIG. 2; FIG. 4 is a detail view of FIG. 3; and FIG. 5 is an axial sectional view of a rolling bearing according to a third exemplary embodiment of FIG. the invention. In Figure 1, a rolling bearing, referenced 10 as a whole, is intended to be used in a disengagement stop device intended to act on the diaphragm of a clutch, in particular for a motor vehicle. The rolling bearing 10 is mounted on an operating element 12 of the associated disengaging stop device and is provided to move axially with respect to a guide tube (not shown). The rolling bearing 10, of axis 10a, comprises a non-rotating inner ring 14, a rotating outer ring 16, a row of rolling elements 18, made here in the form of balls, and mounted between said rings, a cage 20 for maintaining the regular circumferential spacing of the rolling elements, and an annular seal 22 fixed to the outer ring. In the exemplary embodiment illustrated, the bearing 10 also comprises a self-aligning sleeve 24 mounted in the bore of the inner ring 14. Alternatively, the bearing 10 may be devoid of such a sleeve.
    [0003] The inner ring 14, axis 10a, thin wall may advantageously be made by stamping a sheet or a steel tube. The inner ring 14 is made in one piece. The inner ring 14 comprises a toroidal portion 14a having in cross section a quarter-concave inner profile forming a track or toric raceway for the rolling elements 18. The inner ring 14 also comprises an annular axial portion 14b extending an edge of large diameter. diameter of the toroidal portion 14a axially opposite the outer ring 16, which is itself extended radially outwardly by a radial portion forming an annular flange 14c. The flange 14c is situated axially on the opposite side to the toroidal portion 14a and to the rolling elements 18 with respect to the axial portion 14b. The flange 14c is mounted axially in abutment against the operating element 12 axially on the opposite side to the outer ring 16. The flange 14c is located axially opposite the seal 22. The outer ring 16, with axis 10a, thin-walled can also be advantageously made by stamping a sheet or a steel tube. The outer ring 16 is made in one piece. The outer ring 16 comprises a toroidal portion 16a having in cross section a quarter-concave inner profile forming a track or toric track for the rolling elements 18. The outer ring 16 also comprises an axial portion 16b extending a large-diameter edge the toroidal portion 16a and radially surrounding the toroidal portion 14a of the inner ring. The outer ring 16 further comprises a frustoconical portion 16c extending a small-diameter edge of the toroidal portion 16a axially opposite the axial portion 16b, and an annular radial portion 16d extending radially inwardly the frustoconical portion 16c. The radial portion 16c is provided to come axially in contact against a diaphragm of the clutch (not shown). The holding cage 20 is disposed radially between the toroidal portion 14a of the inner ring and the frustoconical portion 16c of the outer ring. The cage 20 is mounted axially between the rolling elements 18 and the radial portion 16d of the outer ring. The seal 22 comprises an armature or flange 26 on which is disposed a seal 28 made of a flexible material and exerting a dynamic seal with the inner ring 14. The term "dynamic seal" means a seal between two parts having a relative movement. The flange 26 is made of a rigid material, for example by stamping, cutting and folding a sheet or a steel tube.
    [0004] Alternatively, the flange 26 may be made of rigid synthetic material, for example polyamide. The flange 26, of generally annular shape, is fixed on the outer ring 16. The flange 26 extends towards the inner ring 14 and is located partly axially opposite the flange 14c of said ring.
    [0005] The flange 26 comprises an annular axial portion 26a in radial contact against the outer surface of the axial portion 16b of the outer ring and extended by an end edge (not referenced) folded over said outer ring 16, for example by crimping, for ensuring the axial and circumferential retention of the seal 22. The axial portion 26a is extended, on the opposite side to the end edge, by an annular radial portion 26b extending inward towards the inner ring 14 staying away from it. The radial portion 26b of the flange is located axially facing the flange 14c of the inner ring. An axial space (not referenced) remains between the radial portion 26b of the flange and the flange 14c. In the exemplary embodiment illustrated, the radial portion 26b has a stepped shape so as to increase the rigidity of the flange 26. In a variant, the radial portion 26 could extend in a purely rectilinear manner. The lining 28 may be made of elastomer, for example such as nitrile rubber. The seal 28 is overmoulded or vulcanized on the radial portion 26b of the flange. The seal 28 comprises an annular radial inner bead 28a and annular sealing lips 28b, 28c projecting from said bead respectively on the inner side and the outer side of the rolling bearing. The heel 28a covers the free end of the portion 26d of the flange and the radial front surface of said radial portion located axially opposite the radial portion 14c of the inner ring. The heel 28a is located axially and radially away from the inner ring 14. The inner lip 28b extends from an inner edge of the heel 28a and the outer lip 28c extends from an outer edge of said heel . The lip 28b is located radially between the radial portion 26b of the flange and the axial portion 14b of the inner ring. The lip 28c is situated axially between the radial portion 26b of the flange and the flange 14c of the inner ring. The lips 28b, 28c fulfill a dynamic sealing function with the inner ring 14.
    [0006] The inner lip 28b is oriented towards the inside of the rolling bearing 10, ie on the side of the rolling elements 18. The inner lip 28b extends obliquely downwards and comes into frictional contact with the axial portion 14b of the inner ring . The lip 28b is mounted in frictional contact with the axial outer surface of the axial portion 14b. The frictional contact between the lip 28b and the inner ring 14 is radial. The lip 28b is radially flexible. The free end of the lip 28b advantageously has a triangular shape in cross section so as to reduce the frictional torque between said lip and the inner ring 14. The outer lip 28c is oriented towards the outside of the rolling bearing 10, ie the opposite side to the rolling elements 18. The outer lip 28c extends obliquely upwards and comes into frictional contact with the flange 14c of the inner ring. The lip 28c is mounted in frictional contact with the radial front surface of the flange 14c oriented on the side of the outer ring 16. The frictional contact between the lip 28c and the inner ring 14 is axial. Lip 28c is axially flexible. The lip 28c closes the axial space existing between the flange 14c and the flange 26.
    [0007] The free end of the lip 28c advantageously has a triangular shape in cross section. In the illustrated embodiment, the lip 28c extends obliquely upwards. Alternatively, the lip could extend obliquely downwards and come rub against the rounded portion of the inner ring connecting the axial portion 14b and the flange 14c. The outer lip 28c is situated axially on the opposite side to the inner lip 28b with respect to the heel 28a. The inner 28b and 28c outer lips are disposed axially on either side of the radial portion 26b of the flange. The outer lip 28c is offset radially outwardly of the rolling bearing 10 relative to the inner lip 28b. The outer lip 28c is offset axially outwardly of the rolling bearing 10 relative to the inner lip 28b. The outer lip 28c located axially between the flange 26 and the flange 14c of the inner ring forms a prior seal prior to the inner lip 28b, which makes it possible to limit the arrival of polluting particles to said lip 28b. In the exemplary embodiment illustrated, the seal 28 also comprises an annular radial outer bead 28d partially covering the radial front surface of the radial portion 26d of the flange oriented in the direction of the outer ring 16. The heel 28d exerts an static sealing with the outer ring 16. "Static sealing" means a seal between two parts having no relative movement. The heel 28d comes axially in abutment against the radial end edge of the axial portion 16b of the outer ring. The heel 28d is prestressed axially between the outer ring 16 and the flange 26. The heel 28d tends to return to its original dimensions and move the flange 26 axially on the opposite side to the outer ring 16, which causes a tightening of the edge. end of the flange on said ring. The axial retention of the seal 22 on the outer ring 16 is thus securely obtained. The self-aligning sleeve 24 is advantageously made of synthetic material, for example elastomer or natural rubber. The sleeve 24 comprises an annular body 24a mounted in the bore of the inner ring 14 in radial contact with said bore, and a plurality of ribs 24b parallel to the axis 10a, extending substantially radially inwardly from the bore of the body 24a and the inner free edge comes into contact with the actuating element 12. The ribs 24b are deformable radially and allow the bearing 10 to move radially relative to the actuating element 12 when a disengagement operation so as to allow self-alignment of said bearing with respect to the clutch diaphragm when the axes of rotation of these two elements are not aligned. The sleeve 24 further comprises an annular sealing lip 24c in frictional contact with the outer ring 16. The lip 24c is in frictional contact with the radial portion 16d of the outer ring. The contact between the lip 24c and the outer ring 16 is axial. The lip 24e extends from an axial end of the body 24a. The lip 24c here extends obliquely inwards. The lip 24c is arranged axially in the free axial space existing between the inner ring 14 and the radial portion 16d of the outer ring. The lip 24c makes it possible to avoid in this zone the intrusion of foreign polluting particles between the inner and outer rings 14. The lip 24e of the sleeve is disposed axially on the opposite side to the seal 22 with respect to the rolling elements 18. The lip 24e of the sleeve in frictional contact with the outer ring and the inner lip 28b of the seal in frictional contact with the inner ring 14 delimit radially between said rings a sealed annular space containing the rolling elements 18. maintaining the lubricant introduced inside the enclosed space defined between the rings 14, 16 of the bearing.
    [0008] Furthermore, the outer lip 28e of the gasket offset axially relative to the lip 28b and located axially between the flange 26 of said seal and the flange 14e of the inner ring makes it possible to limit the number of polluting particles reaching said inner lip. The prediction of the outer lip 28 placed upstream of the inner lip 28e at the inlet of the bearing 10 promotes the achievement of improved sealing. The exemplary embodiment illustrated in FIG. 2, in which the identical elements bear the same references, differs only from the previous example described in that the seal 22 comprises a plurality of external sealing lips 28 '. extending protruding from the outer edge of the bead 28a of the seal of said seal on the outer side of the bearing 10. The relative disposition of the outer lip 28e with respect to the other elements of the seal 22, and more generally with respect to to the other elements of the bearing 10, is identical to that of the outer annular lip 28e described above in the first embodiment. Each outer lip 28 extends axially and comes into frictional contact with the flange 14e of the inner ring. Each lip 28e is mounted in frictional contact with the front surface of the flange 14c oriented on the side of the outer ring 16. The frictional contact between the lip 28c and the inner ring 14 is axial.
    [0009] As illustrated more clearly in FIGS. 3 and 4, the outer lips 28e are distributed over the circumference of the seal 22. In the exemplary embodiment illustrated, the outer lips 28e are arranged in pairs, the lips of a pair being radially offset with respect to each other. The pairs of lips are identical to each other and regularly spaced circumferentially relative to one another. Alternatively, it is possible to provide a non-regular circumferential spacing of the lips 28e. Each lip 28 is in the form of a protuberance or frustoconical projection whose free end has in cross section a triangular shape. In an alternative embodiment, it could still be possible to provide external lips 28e made in the form of fins or tongues spaced relative to each other in the circumferential direction regularly or not regularly and arranged or not on the same diameter.
    [0010] The exemplary embodiment illustrated in FIG. 5, in which the identical elements bear the same references, differs from the first example described in that the seal 22 comprises an annular external sealing lip 28f in frictional contact with the radial direction with the inner ring 14. The sealing lip 28f protrudes outwardly from the bearing 10 from the outer edge of the bead 28a of the gasket seal. The outer lip 28f extends obliquely downwards and comes into frictional contact with the flange 14c of the inner ring. The lip 28f is mounted in frictional contact with the axial outer surface of the flange 14c. Lip 28f is radially flexible. The free end of the lip 28f advantageously has a triangular shape in cross-section so as to reduce the frictional torque between said lip and the inner ring 14. The relative disposition of the external lip 28f relative to the other elements of the gasket sealing is identical to that of the outer lip 28c with axial interference described in the first embodiment. The lip 28f is located axially between the radial portion 26b of the flange and the front surface of the flange 14c of the inner bearing ring for the operating element 12. In this embodiment, the flange 14c of the inner ring has a radial dimension reduced so that the lip 28f of the seal leaves free the end of large diameter of the radial portion 26b of the flange as is also the case in the previous embodiments described.
    [0011] This makes it possible to be pressed against this region of the flange 26 during assembly of the seal 22 on the outer ring 16. In the exemplary embodiments, the internal sealing lip of the seal is rubbing. Alternatively, this lip could be of the labyrinth type, i.e. forming with the associated ring sealing tight passage (s). In an alternative embodiment, it may also be possible to provide for the seal one or more labyrinth type external sealing lips. In the exemplary embodiments illustrated, the inner and outer seal lips (s) of the seal extend from the heel of the seal. Alternatively, these lips could extend directly from the flange being for example overmolded on said flange, for example on the radial portion. In another variant, it could still be possible to fix the seal on the inner ring, the sealing lips then cooperating with the outer ring. In the exemplary embodiments illustrated, the self-centering sleeve comprises a lip cooperating by friction with the outer ring and disposed axially on the opposite side of the seal relative to the rolling elements. Alternatively, it may be possible to provide an additional seal separate from the sleeve and attached to said sleeve, said seal comprising a lip frictionally engaging the outer ring or forming a narrow passage with said ring. In another variant, the additional seal could be fixed on the outer ring and cooperate with the inner ring, or vice versa. Thanks to the invention, it has a rolling bearing having improved sealing through the use of a seal comprising at least one inner sealing lip cooperating with a first portion of the associated ring and at least one lip external sealing cooperating with a second portion of said ring which is axially opposite said seal, said outer lip being offset outwardly of the bearing relative to said inner lip to limit the intrusion of polluting particles at the inlet of said bearing .
    权利要求:
    Claims (14)
    [0001]
    REVENDICATIONS1. A rolling bearing comprising an inner ring (14), an outer ring (16), at least one row of rolling elements (18) disposed between said rings, and at least one seal (22) attached to one rings and comprising at least one sealing lip (28b) cooperating with a first portion (14b) of the other ring, characterized in that the seal (22) further comprises at least one lip of sealing (28c; 28e; 28f) externally offset axially with respect to said inner sealing lip on the outer side of the bearing, said outer sealing lip cooperating with a second portion (14c) of the other ring which is distinct from said first portion (14b) and located axially facing the seal (22).
    [0002]
    2. Bearing according to claim 1, wherein the seal (22) further comprises a flange (26) on which said internal and external sealing lips (28b, 28c, 28e, 28f) are arranged, said flange being located at least partly axially facing the second portion (14c) of the other ring.
    [0003]
    3. Bearing according to claim 2, wherein the flange (26) comprises a radial portion (26b) or substantially radial extending towards the other ring, said sealing lips (28b, 28c, 28e, 28f). internal and external being disposed axially on either side of said portion.
    [0004]
    Bearing according to any one of the preceding claims, wherein said inner sealing lip (28b) is oriented towards the inside of the bearing towards the rolling elements (18) and said sealing lip (28c; 28e; 28f) is oriented towards the outside of said bearing.
    [0005]
    5. Bearing according to any one of the preceding claims, wherein said inner sealing lip (28b) frictionally engages with the first portion (14b) of the other ring.
    [0006]
    6. Bearing according to claim 5, wherein said inner sealing lip (28b) is mounted radially in contact with the first portion (14b) of the other ring.
    [0007]
    7. Bearing according to any one of the preceding claims, wherein said sealing lip (28c; 28e; 28f) frictionally engages with the second portion (14c) of the other ring.
    [0008]
    8. Bearing according to claim 7, wherein said outer sealing lip (28c; 28e) is mounted axially in contact with the second portion (14c) of the other ring.
    [0009]
    9. Bearing according to claim 7, wherein said outer sealing lip (28e) is mounted radially in contact with the second portion (14c) of the other ring.
    [0010]
    10.A bearing according to any one of the preceding claims, wherein the first portion (14b) of the other ring extends axially and is extended radially by the second portion (14c) flange.
    [0011]
    Bearing according to any one of the preceding claims, wherein said internal sealing lip (28b) is annular.
    [0012]
    12.A bearing according to any one of the preceding claims, wherein said outer sealing lip (28c; 28f) is annular.
    [0013]
    A bearing as claimed in any one of claims 1 to 11, wherein said seal (22) comprises a plurality of external sealing lips (28e) distributed over the circumference of said seal.
    [0014]
    14.A bearing according to any one of the preceding claims, further comprising an additional seal attached to one of the rings and comprising at least one sealing lip (24c) cooperating with the other ring and disposed axially of the opposite side to the seal (22) with respect to the rolling elements (18) .15.A bearing according to claim 14, comprising a self-centering sleeve (24) mounted in the bore of the inner ring and comprising said additional seal. 16. Disengagement stop device comprising a rolling bearing according to any one of the preceding claims.
    类似技术:
    公开号 | 公开日 | 专利标题
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    FR2953576A1|2011-06-10|Seal for use between rings of roller bearing for e.g. retention of grease, has flange including edge axially projecting relative to radial region and defining annular space together with ring, where space is filled with lubricant
    FR2928983A1|2009-09-25|Self-centering clutch release bearing device for use in motor vehicle, has axial lugs provided with hook for retaining non-rotatable ring to hold ring flexibly against radially running surface of collar of adjusting element
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    FR3041723A1|2017-03-31|BALL BEARING COMPRISING A CAGE COMPRISING A WIRE AND A SEAL
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    FR3035929A1|2016-11-11|BEARING COMPRISING AN ELASTIC SEALING FLANGE
    FR3029994A1|2016-06-17|BEARING BEARING COMPRISING A SEALING FLANGE
    同族专利:
    公开号 | 公开日
    CN105041878A|2015-11-11|
    US9657785B2|2017-05-23|
    CN105041878B|2020-05-12|
    FR3020421B1|2016-12-30|
    US20150308516A1|2015-10-29|
    BR102015009052A2|2015-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2743950A|1951-07-12|1956-05-01|Nat Motor Bearing Co Inc|Shaft seal|
    DE3709237A1|1987-03-20|1988-09-29|Kugelfischer G Schaefer & Co|SLIDING SLEEVE OF A CAR CLUTCH|
    EP2287486A1|2008-05-27|2011-02-23|JTEKT Corporation|Clutch release bearing|
    JP2010084902A|2008-10-01|2010-04-15|Jtekt Corp|Clutch release bearing device|
    DE4224179C1|1992-07-22|1993-11-11|Freudenberg Carl Fa|Guide sleeve with integrated seal for a clutch release bearing of a transmission|
    JP3751743B2|1998-02-04|2006-03-01|光洋精工株式会社|Clutch release bearing|
    JP2001311437A|2000-04-28|2001-11-09|Koyo Seiko Co Ltd|Clutch release bearing|
    JP2004176782A|2002-11-26|2004-06-24|Nsk Ltd|Seal and clutch release bearing device|
    FR2883347B1|2005-03-15|2007-06-01|Skf Ab|STOP CLUTCH|
    DE102008039489A1|2008-08-23|2010-02-25|Schaeffler Kg|Clutch release bearing device, and method for producing the same|
    JP2010112533A|2008-11-10|2010-05-20|Ntn Corp|Ball bearing for clutch release bearing device|
    DE102009016228A1|2009-04-03|2010-10-07|Schaeffler Technologies Gmbh & Co. Kg|Release bearing with concave sealing lip|
    DE102010047931A1|2010-10-08|2012-04-12|Schaeffler Technologies Gmbh & Co. Kg|clutch release bearing|FR3020423B1|2014-04-25|2016-12-30|Skf Ab|BEARING BEARING, IN PARTICULAR FOR A CLUTCH STOP DEVICE|
    FR3033853B1|2015-03-16|2017-03-10|Skf Ab|BEARING COMPRISING A WEAR RING|
    FR3034151B1|2015-03-24|2018-07-20|Aktiebolaget Skf|BEARING COMPRISING AN OVERMOLDED WEAR, AND METHOD OF MANUFACTURING THE SAME|
    DE102019208470A1|2019-06-11|2020-12-17|Aktiebolaget Skf|Sealed clutch thrust bearing device and drive shaft system with such a device|
    法律状态:
    2015-04-30| PLFP| Fee payment|Year of fee payment: 2 |
    2015-10-30| PLSC| Search report ready|Effective date: 20151030 |
    2016-04-27| PLFP| Fee payment|Year of fee payment: 3 |
    2017-04-28| PLFP| Fee payment|Year of fee payment: 4 |
    2018-05-02| PLFP| Fee payment|Year of fee payment: 5 |
    2019-04-29| PLFP| Fee payment|Year of fee payment: 6 |
    2020-04-29| PLFP| Fee payment|Year of fee payment: 7 |
    2021-04-27| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1453666A|FR3020421B1|2014-04-24|2014-04-24|BEARING BEARING, IN PARTICULAR FOR A CLUTCH STOP DEVICE|FR1453666A| FR3020421B1|2014-04-24|2014-04-24|BEARING BEARING, IN PARTICULAR FOR A CLUTCH STOP DEVICE|
    CN201510151485.9A| CN105041878B|2014-04-24|2015-04-01|Rolling bearing and clutch release bearing device comprising same|
    US14/690,906| US9657785B2|2014-04-24|2015-04-20|Rolling bearing, notably for clutch release bearing device|
    BR102015009052A| BR102015009052A2|2014-04-24|2015-04-22|roller bearing, notably for clutch stop device|
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