• 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 invention relates to a bearing arrangement (1) comprising an inner ring and an outer ring between which rolling bodies are arranged, which are accommodated in a bearing cage (4). At least one rolling body is formed as a sensor rolling body (2) and the bearing housing (4) is in the form of a pin cage having a plurality of axle members (6). , which at least partially accommodate the rolling bodies and the at least one detector rolling body (2). The invention also relates to a sensor bearing body (2) for a bearing arrangement (1) of this type.
    公开号:FR3040451A1
    申请号:FR1657944
    申请日:2016-08-26
    公开日:2017-03-03
    发明作者:Haak Nicolaas Simon Willem Den；Matthias Hofmann；Baozhu Liang；Hans-Juergen Liesegang；Paul Meaney
    申请人:SKF AB；
    IPC主号:
    专利说明:

    Description
    Bearing arrangement with a sensor rolling body
    The present invention relates to a bearing arrangement comprising an inner ring and an outer ring between which rolling bodies are arranged which are accommodated in a bearing housing, at least one rolling body being embodied in the form of a rolling body. detector, and a sensor rolling body for such a bearing arrangement.
    In the state of the art, it is known to equip the rolling bearings of sensors to measure the forces acting on the rolling bearing, for example rotational speeds or temperatures. The sensors are here arranged in a rolling body, for example, the sensors may further have antennas to communicate the measured data to an external receiver.
    A disadvantage with the bearing arrangements equipped with a sensor rolling body known in the state of the art, however, lies in the fact that a maintenance of the rolling body detector is very complicated and, therefore, very expensive. To gain access to the sensor bearing body, it is generally necessary to disassemble the entire rolling bearing.
    It is therefore an object of the present invention to provide a bearing arrangement that allows for simplified and improved maintenance of a sensor bearing body.
    This object is realized by a bearing arrangement according to claim 1, as well as by a sensor rolling body for such a bearing arrangement according to claim 11.
    Hereinafter will be presented a bearing arrangement provided with an inner ring and an outer ring between which are arranged rolling bodies which are accommodated in a bearing cage. At least one rolling body is here produced in the form of a sensor rolling body. Influence factors acting on the bearing, such as rotational speeds, pressures or temperatures, can be measured with the sensor rolling body and communicated to an external receiver for interpretation. Datas.
    According to the invention, in order to achieve an improved maintenance of the sensor rolling body, an axis cage is used in place of the known pocket bag of the state of the art. A bearing cage of this type has axle members which at least partially accommodate the rolling bodies and the at least one sensor rolling body. The axle cage makes it possible, if necessary, to have direct access to the sensor bearing body without the need to completely disassemble the rolling bearing. To accommodate the axle members, the rolling bodies generally have a central axial through hole. But as at least one detector module, which will be amply described hereinafter, is disposed in the sensor rolling body, the axle member can not simply be accommodated through the known central through hole of the housing. state of the art in the sensor rolling body. Accordingly, another aspect of the present invention relates to preferred configurations of the axis member and / or the detector module.
    According to a preferred embodiment, the detector rolling body is thus in the form of a socket with a socket interior space. At least one detector module for detecting at least one magnitude of the bearing, for example temperature, vibration, expansion, etc. is thus welcomed into the interior socket space.
    According to another preferred embodiment, in order to arrange the at least one detector module in the sensor rolling body, the pin element may be embodied as two spaced apart holding members. another in an area of a rolling body housing. The holding members here engage in cavities configured accordingly of the sensor rolling body. The holding elements are advantageously configured so that with a sensor rolling body which has a bushing, they engage directly into the bushing and extend in a partial area along an axis of rotation of the body. sensor bearing, so that being spaced from each other, they form between them a space in which can be arranged the at least one detector module. The at least one holding element can here also be made in one piece with a lateral element of the bearing cage. Alternatively, at least one holding element can of course also be embodied as a separate element.
    In another preferred embodiment, the axle member is formed as an uninterrupted axis for the sensor rolling body. The uninterrupted axis offers the advantage that the sensor bearing body, just like the other rolling bodies, can simply be plugged onto the axle during assembly without the need for additional fasteners. The rolling bearing can thus be manufactured in a simple manner. In order to connect the indwelling axle member to at least one side member of the bearing housing, the axle member of the sensor rolling body, as well as the axle members of the other rolling bodies, can be attached to the bearing cage by means of at least one safety element. In order to be able to provide sufficient space for the arrangement of at least one detector module in the sensor rolling body even in the presence of an uninterrupted axis, the axis is in the form of a dumbbell and has a reduced diameter in a partial area in the socket inner space.
    As shown in a further embodiment, the sensor module itself may be disposed in the socket centrally with respect to an axis of rotation of the detector rolling body. The detector module here advantageously extends in the radial direction over the entire interior space of the socket.
    Alternatively or additionally, the at least one detector module may be disposed in the sleeve inner space at the periphery of an axis of rotation of the sensor rolling body and spaced therefrom radially. This makes it possible in particular to use an uninterrupted shaft element for fixing the detector rolling body to the bearing housing.
    In addition, a plurality of detector modules can also be disposed at the periphery of the axis of rotation of the sensor rolling body and spaced therefrom in the socket, the sensor modules preferably measuring different parameters of the bearing. In addition, it is also possible to configure the ring-shaped detector module. The detector module (s) may be fixed to an inner casing of the casing removably or irremovably by melting materials and / or by complementarity of shapes and / or by force, so that a simple replacement of the entire system or also only one of the detector modules is possible if necessary.
    According to another exemplary embodiment, the bearing arrangement has at least one current supply element and / or at least one data communication element, preferably wireless, for example an antenna, and / or at least one amplifier. . The at least one current supply element and / or the at least one data communication element are here preferably arranged on the at least one detector module or made integrated in the detector module, whereas the amplifier is preferably disposed on the bearing cage and / or on one of the bearing rings.
    The measurement data can be transmitted wirelessly, for example in the form of electromagnetic waves, to a receiver, especially to an interpreter station, using the data communication element, preferably wirelessly. The receiver is here preferably arranged outside the rolling bearing. To allow communication free of disturbances of the signals to the receiver, the bearing cage may include a passage opening, for example in one of the holding elements.
    To send the measurement data to a receiver from an inner area of the bearing even in the case of large bearings, or to communicate with remote measurement stations, there may be an amplifier which can be disposed on the rolling body at detector and / or on the bearing cage and / or on at least one of the bearing rings. It thus becomes possible to have an energy-poor data communication element on the detector rolling body for which it is necessary to provide less energy.
    According to another preferred embodiment, the current supply element is made in the form of a battery. In addition or alternatively, the current supply element can also be embodied as an inductive generator, which has the advantage that the current is generated by means of the rotational movement inherent in the bearing. Energy can thus be made available to the detector module throughout the life of the rolling bearing.
    The inductive generator here has a rotor which has at least one coil and a stator which has at least one magnet, the stator being preferably connected to the bearing housing or to one of the bearing rings and the rotor preferably to the rolling body with a sensor. An electric current can thus be generated due to the rotational movement of the sensor rolling body relative to the bearing housing or the bearing ring, which can be provided in the sensor module via the coil of the housing. rotor. It is preferable here that the at least one coil and the at least one magnet be oriented with a small gap between them to allow particularly efficient current generation.
    According to another preferred embodiment, the bearing cage has at least a first and a second bearing cage segment. The two bearing cage segments can here be connected to one another by melting materials and / or by force and / or by complementarity of shapes and / or not be connected. If the bearing cage segments are connected to each other, they can then absorb higher loads, for example, because they act as a fixed unit. If, on the other hand, the cage segments are not connected, they can in particular be disassembled and / or replaced more easily. The segmentation of the bearing cage offers the advantage that it is possible to manufacture smaller spare parts and that the mounting of both the bearing housing and the rolling bearing is simplified. At the same time, the maintenance of the sensor rolling body is simplified because only an intervention on the bearing cage segment equipped with the sensor rolling body is required when necessary. A sensor rolling body is preferably mounted by bearing cage segment. However, it is also possible to mount several or no detector bearing bodies on the bearing cage segment.
    Another aspect of the invention relates to a sensor bearing body for a bearing arrangement provided with an axle cage, which has at least one of the features described above. Other advantages and advantageous embodiments are indicated in the secondary claims, the description and the drawings. A combination of the features presented in the description as well as in the drawings is here purely by way of example and it will be apparent to those skilled in the art that the features need not necessarily be present in the combination indicated, but that they can also be present individually or combined with each other differently without departing from the scope of the present invention.
    The principle of the invention will be described in more detail below with the aid of the exemplary embodiments shown in the drawings. The exemplary embodiments are here given by way of example only and should not set the scope of the invention. This applies in particular to the combined features presented, which can also be realized as autonomous characteristics in the context of the present invention. The field of protection of the invention is defined exclusively by the appended claims.
    The drawing illustrates:
    Figure 1: a schematic illustration of a longitudinal section through a first embodiment of the bearing arrangement according to the invention;
    Figure 2: a schematic illustration of a longitudinal section through a second embodiment of the bearing arrangement according to the invention; and Figure 3: a schematic illustration of a longitudinal section through a third embodiment of the bearing arrangement according to the invention.
    In the following, the identical or functionally identical elements will be identified by the same reference characters.
    Figures 1 to 3 are respectively a schematic illustration of a longitudinal section through a bearing arrangement 1 of a rolling bearing equipped with a sensor rolling body 2, which is disposed in a bearing housing 4. As usually, the bearing housing 4 is disposed between an inner bearing ring and an outer bearing ring (not shown) and adapted to space and guide the rolling bodies. The forces acting on the rolling bearing, such as rotational speeds, temperatures or pressures, can be measured here using the sensor rolling body 2 and communicated to an external receiver (not shown).
    In addition, FIGS. 1 to 3 show that the bearing cage 4 is in the form of an axle cage and has axle elements which are accommodated by a central orifice formed in the rolling bodies. But since the detector rolling body 2 has at least one detector module 8 which is designed to detect the at least one bearing size, it is not possible to use a conventional axis element. In order to still benefit from the advantage of an axle cage, the axle cage has in the area of the sensor rolling body 2 an axle member 6 which is specially adapted to the support of the rolling bearing body. detector 2. Figures 1 and 2 here represent a first configuration, while Figure 3 indicates a second possible configuration of the axis member 6 and the rolling body sensor 2. In both configurations, the rolling body to However, the detector 2 has a socket 10 provided with an internal socket space 12, the socket inner space 12 being designed to accommodate at least one detector module 8 which is fixed on an inner envelope 26 of the socket 10.
    With the special configurations of Figures 1 and 2, the shaft member 6 is formed as two holding members 14, 16 spaced apart from each other. The holding members 14, 16 here engage in the inner sleeve space 12 of the sensor rolling body 2. The two holding members 14, 16 here extend in a partial area 18, 20 along a rotation axis D of the detector rolling body 2, but they are however spaced so as to form between them a space 22 for the disposal of the detector module 8. The holding elements 14, 16 themselves are made of a alone with the bearing cage 4, but they can also be made in the form of elements to be mounted separately.
    Alternatively, as illustrated in Figure 3, the axle member 6 may also be formed as an unbroken axis which has a reduced diameter of in a partial area 24. Safety elements 23, 25 through of which the shaft member 6 is attached to the bearing housing 4 are further provided for attachment of the shaft member 6. Of course, a configuration at least partially integral with the bearing housing 4 is also possible.
    As shown in FIGS. 1 and 2, the detector module 8 can in turn extend centrally with respect to the axis of rotation D over the whole of the inner sleeve space 12. Alternatively or in addition, it is also possible to arrange the detector module 8 as illustrated in FIG. 3, at the periphery of the rotation axis D of the detector rolling body 2 and spaced therefrom in the radial direction. Several detector modules 8 can here also be arranged peripherally in the sleeve 10. In a variant, it is also possible to configure the detector module 8 in the form of a ring.
    As also illustrated in FIGS. 1 to 3, at least one current supply element 28 in the form of a generator comprising a rotor 30 having a coil and comprising a stator 32 having a magnet is formed on the detector rolling body. 2. As illustrated in Figures 1 to 3, the rotor 30 is here connected to the rolling body sensor 2, while the stator 32 is attached to the bearing cage 4. An electric current can be generated because of the movement rotating the sensor bearing body 2 with respect to the bearing housing 4, which can be provided in the sensor module 8 via the rotor coil 30. As illustrated in FIGS. 1 to 3, the rotor 30 and the stator 32 are here arranged with only a small gap from each other to allow a particularly efficient current generation.
    FIGS. 1 to 3 furthermore make it possible to observe that a data communication element 34, preferably wireless, for example an antenna, is arranged on the rolling body with detector 2, which wirelessly communicates electromagnetic waves, in particular radio waves, to an external receiver (not shown). As illustrated in FIG. 1, to effectively communicate the signal to the receiver, a passage opening 36 which allows communication free of signal disturbances from the interior space of the bearing is in one of the holding members 14; 16, preferably on the holding element 16 located opposite to the data communication element 34.
    As illustrated in FIG. 2, if it is necessary to cross great distances or if it is only necessary to use a low power data communication element 34, it is possible to provide an amplifier 38 which is arranged in the passage opening. 36, for example.
    In summary, the bearing arrangement according to the invention and the associated sensor rolling body make it possible to produce a rolling bearing with which a replacement of the sensor rolling body is possible in a simple manner. The rolling body and the at least one detector rolling body are here accommodated in a preferably segmented shaft housing, which allows easy access to and easy replacement of the sensor rolling body. To accommodate an axle member in the sensor rolling body, the axle member may be dumbbell-shaped, for example, or have two separate, non-interconnected holding members which provide them with each other. a space for housing at least one detector module.
    Nomenclature 1 Bearing arrangement 2 Sensor bearing housing 4 Bearing housing 6 Axis element 8 Sensor module 10 Bushing 12 Sleeve interior space 14, 16 Holding element 18, 20 Partial zone 22 Space 24 Partial zone 23, 25 Element of support Safety 26 Inner enclosure 28 Current supply element 30 Rotor 32 Stator 34 Data communication element 36 Through opening 38 Amplifier D Small axis diameter axis of rotation
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    Bearing arrangement with a rolling bearing body Bearing arrangement (1) comprising an inner ring and an outer ring between which rolling bodies are arranged, which are accommodated in a bearing cage (4), at least one body for rolling bearing being in the form of a sensor rolling body (2), characterized in that the bearing housing (4) is in the form of an axle cage having a plurality of axle members (6) , which at least partially accommodate the rolling bodies and the at least one detector rolling body (2). Bearing arrangement (1) according to claim 1, characterized in that the bearing housing (4) has at least a first bearing cage segment and a second bearing cage segment. Bearing arrangement (1) according to one of the preceding claims, characterized in that the axle element (6) in the region of a housing of the sensor rolling body (2) is formed as two elements. spacers (14; 16) spaced apart from each other, the holding members (14; 16) engaging in cavities (12) accordingly configured on the detector rolling body (2). Bearing arrangement (1) according to one of the preceding claims, characterized in that the shaft element (6) is formed as an uninterrupted shaft for a sensor bearing body (2). Bearing arrangement (1) according to one of the preceding claims, characterized in that the sensor bearing body (2) is constructed as a bushing (10) with a bush inner space (12) in which which is accommodated at least one detector module (8) for detecting at least one magnitude of the bearing. Bearing arrangement (1) according to claim 5, characterized in that the at least one sensor module (8) is arranged centrally with respect to an axis of rotation (D) of the sensor rolling body (2) in the socket (10). Bearing arrangement (1) according to one of claims 5 or 6, characterized in that the at least one sensor module (8) is arranged in the inner sleeve space (12) at the periphery of an axis of rotation (D) of the sensor rolling body (2) and is radially spaced therefrom. Bearing arrangement (1) according to one of the preceding claims, characterized in that the bearing arrangement (1) has at least one current supply element (28) and / or at least one data communication element ( 34) and / or at least one amplifier (38), the at least one current supply element (28) and / or the at least one data communication element (34) being preferably arranged on the detector module (8). Bearing arrangement (1) according to claim 8, characterized in that the current supply element (28) is constructed as an inductive generator and / or a battery. I. Bearing arrangement (1) according to claim 9, characterized in that the inductive generator has at least one rotor (30) having at least one coil and a stator (32) having at least one magnet, the stator ( 32) being preferably arranged on the bearing housing (4) and the rotor (30) preferably on the sensor rolling body (2). Sensor bearing body (2) for a bearing arrangement (1) comprising a shaft cage according to one of the preceding claims.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3040451A1|2017-03-03|BEARING ARRANGEMENT WITH A DETECTOR BEARING BODY
    EP0387459B1|1992-11-25|Slide bearing assembly with replaceable transducer
    EP0821240B1|2002-01-09|Roller bearing with measuring sensor
    EP2627870B1|2014-12-10|Connecting module between a drive shaft of an engine fan and a rolling element bearing
    FR2698421A1|1994-05-27|Housing for radial fixing of a bearing.
    WO2007104894A1|2007-09-20|Shaft support system for electric motor, electric motor and method for making same
    FR2671633A1|1992-07-17|ROTATION SPEED SENSOR DEVICE INTEGRATED IN A BEARING HUB.
    WO2000067038A1|2000-11-09|Roller bearing with information sensor
    EP1241067A3|2003-09-17|Wheel support bearing assembly
    US10459000B2|2019-10-29|Encoder wheel for wheel-hub unit
    FR2959539A1|2011-11-04|INSTRUMENT ASSEMBLY AND BRAKE WASHER THEREFOR
    FR3004770A1|2014-10-24|BEARING BEARING DEVICE FOR STEERING COLUMN
    FR3018887A1|2015-09-25|ROLLER OR ROLLER DEVICE
    US9701159B2|2017-07-11|Low friction sealing device for a wheel hub assembly connected to a constant velocity joint
    US9649882B2|2017-05-16|Axle assembly with outboard axle bearings
    FR3020107A1|2015-10-23|ROLLER OR ROLLER DEVICE
    RU2012151276A|2014-06-10|INSTRUMENTED EQUIPMENT ASSEMBLY FOR AXLE
    FR3004769A1|2014-10-24|BEARING BEARING DEVICE FOR STEERING COLUMN
    EP1693677A1|2006-08-23|Device for detecting the rotation parameters of two elements
    EP1324046A1|2003-07-02|Roller bearing comprising a wireless data transmission assembly
    FR2825533A3|2002-12-06|Rotor and holder combination for electric motor, has rotor with axial tube in which fixing element is secured in axial tube with holding element secured in lower end of axial tube
    FR3039864A1|2017-02-10|METHOD OF MANUFACTURING A PULLEY DEVICE, PULLEY DEVICE ACCORDING TO SUCH A MANUFACTURING PROCESS AND MOTOR EQUIPPED WITH SUCH PULLEY
    EP2549136A3|2013-03-06|Mounting of a rotary shaft in a housing by means of a rolling bearing
    FR2871881A1|2005-12-23|Wheel`s rotation parameters detecting device for e.g. motorcycle, has elastic driving unit axially mounted on outer ring on opposite of coding unit, and sensor unit mounted on body of hollow shaft, where body surrounds portion of ring
    EP1942316A1|2008-07-09|Device for detecting and storing operating parameters of a vehicle wheel, assembly of spacers used and vehicle wheel hub
    同族专利:
    公开号 | 公开日
    CN106481657B|2020-12-15|
    US20170059448A1|2017-03-02|
    GB2542266B|2018-05-09|
    FR3040451B1|2019-11-29|
    US9816896B2|2017-11-14|
    GB2542266A|2017-03-15|
    CN106481657A|2017-03-08|
    DE102015216472B4|2018-05-17|
    GB201613922D0|2016-09-28|
    DE102015216472A1|2017-03-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0908714A1|1997-10-10|1999-04-14|Rks S.A.|Bearing assembly|
    EP2354578A2|2010-01-25|2011-08-10|Jtekt Corporation|Load detecting device for roller bearing and roller bearing apparatus|
    WO2012069066A1|2010-11-25|2012-05-31|Aktiebolaget Skf|Sensing of the spin of a roller in a bearing in operational use|
    JP2013250204A|2012-06-01|2013-12-12|Jtekt Corp|Load measuring device and measuring method for pin type holder|
    US4175430A|1977-04-04|1979-11-27|Utah Development Company|Load measuring apparatus|
    SE501814C2|1993-08-06|1995-05-22|Skf Ab|Device for load measurement in rolling bearings|
    JP2005069275A|2003-08-28|2005-03-17|Nsk Ltd|Cage rotating speed measuring method for roller bearing, mounting structure of displacement sensor, and operating method of mechanical equipment using cage of roller bearing|
    CN2706620Y|2004-06-18|2005-06-29|车德礼|Roller bearing|
    DE102004049968A1|2004-10-14|2006-04-20|Fag Kugelfischer Ag & Co. Ohg|Spigot cage, especially for larger radial or thrust roller bearings|
    KR100860544B1|2005-03-14|2008-09-26|윤석태|Self locking fastener for split roller bearing cage|
    JP4668227B2|2007-03-30|2011-04-13|財団法人鉄道総合技術研究所|Strain detection device for rolling element of roller bearing|
    JP2011106580A|2009-11-18|2011-06-02|Jtekt Corp|Roller bearing device with pin type cage|
    DE102010023013A1|2010-06-08|2011-12-08|Carl Freudenberg Kg|Rolling element for bearing, particularly rotating or linear rolling bearing, comprises sensor, which is arranged at body of rolling element, which emits and receives electromagnetic radiation|
    DE102010038393A1|2010-07-26|2012-01-26|Aktiebolaget Skf|Rolling elements for a roller bearing|
    DE102010035185A1|2010-08-24|2012-03-01|Schaeffler Technologies Gmbh & Co. Kg|Ball roller for e.g. single-row roller bearing, has hollow space part formed with respect to rotation axis of roller, and filling part accommodated in space part, and active and/or passive sensor element formed by filling part|
    JP2012077882A|2010-10-05|2012-04-19|Jtekt Corp|Roller bearing cage and roller bearing|
    DE102011075495A1|2011-05-09|2012-02-23|Schaeffler Technologies Gmbh & Co. Kg|Spiral-shaped sensor strip for tapered roller of e.g. axial bearing, has carrier i.e. endless conveyor, and set of sensors fastened to carrier, where carrier is made of bendable material e.g. metal or plastic|
    DE102012200779B4|2012-01-20|2014-12-18|Aktiebolaget Skf|rolling elements|
    DE102012202522A1|2012-02-20|2013-08-22|Schaeffler Technologies AG & Co. KG|Sensor bearing, has outer ring coaxially surrounding inner ring, and circular cage distributing pockets uniformly in circumferential direction, where total number of pockets and total number of rolling bodies satisfy specific equation|
    JP6119227B2|2012-12-12|2017-04-26|株式会社ジェイテクト|Bearing roller state detecting device, roller bearing device with sensor, and wind power generator|
    DE102013214703A1|2013-07-29|2015-01-29|Zf Friedrichshafen Ag|Rolling bearings for a transmission|
    DE112013007416T5|2013-09-09|2016-06-09|Aktiebolaget Skf|Sensor rolling element and bearing arrangement|
    WO2015032449A1|2013-09-09|2015-03-12|Aktiebolaget Skf|Bearing assembly including a sensor roller|
    FR3018569B1|2014-03-11|2016-12-09|Skf Ab|INSTRUMENT BEARING AND METHOD OF MANUFACTURING SUCH AN INSTRUMENT BEARING|
    DE102014204537B3|2014-03-12|2015-06-18|Aktiebolaget Skf|Rolling elements of a rolling bearing|
    CN105570320B|2014-10-15|2019-08-06|舍弗勒技术股份两合公司|Bearing arrangement and retainer for bearing|
    CN204477078U|2014-12-19|2015-07-15|新昌县隆豪轴承有限公司|A kind of convex surface taper roller bearing|DE102016116118A1|2016-08-30|2018-03-01|Thyssenkrupp Ag|Rolling elements for use in a rolling bearing|
    DE102017208871A1|2017-05-24|2018-11-29|Aktiebolaget Skf|roller bearing|
    WO2020133265A1|2018-12-28|2020-07-02|舍弗勒技术股份两合公司|Parameter acquiring and tracking system for spatial motion of bearing movable component, parameter acquiring and tracking method for spatial motion of bearing movable component, and bearing|
    法律状态:
    2017-08-28| PLFP| Fee payment|Year of fee payment: 2 |
    2018-08-29| PLFP| Fee payment|Year of fee payment: 3 |
    2019-08-28| PLFP| Fee payment|Year of fee payment: 4 |
    2020-08-24| PLFP| Fee payment|Year of fee payment: 5 |
    2021-08-26| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015216472.1|2015-08-28|
    DE102015216472.1A|DE102015216472B4|2015-08-28|2015-08-28|Bearing arrangement with a Sensorwälzkörper|
    [返回顶部]