Hub and torque damping device

Abstract

The utility model relates to a hub and a torque damping device. The hub comprises a plurality of inner tooth grooves arranged in the circumferential direction; the mounting grooves are located between every two adjacent inner tooth grooves in the circumferential direction and axially penetrate through the hub; the elastic gasket is fixed in the mounting groove, the elastic gasket is provided with an elastic protrusion protruding towards the center direction of the mounting groove, and after the transmission input shaft is inserted into the hub, the elastic protrusion is extruded by the outer gear inserted into the mounting groove and elastically deforms; and the fit clearance generated when the inner tooth groove is meshed with the outer gear is eliminated. The elastic gasket with the elastic protrusion is fixed in the installation groove of the hub, and therefore the fit clearance generated when the inner tooth groove is meshed with the outer gear of the input shaft of the transmission can be effectively eliminated. Not only are the NVH performance, the transmission efficiency and the mechanical performance during dragging starting improved, but also the service life of the hub and the transmission input shaft is prolonged, and the stability and the reliability of the torque damping device during torque transmission are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle vibration reduction, in particular to a wheel hub used in a torque vibration reduction device and the torque vibration reduction device. Background Art

[0002] The torque damper achieves efficient torque transmission by aligning the wheel hub's internal splines with the transmission input shaft's external splines. When installed in a gearbox, a certain clearance (also known as backlash) typically exists between the wheel hub's internal splines and the transmission input shaft's external splines. The size of this clearance directly impacts the transmission efficiency and lifespan between the wheel hub and input shaft.

[0003] The smaller the clearance, the less likely it is to cause surface crushing and excessive wear, resulting in higher transmission efficiency and better mechanical performance. Conversely, if the clearance is larger, the contact between the internal and external splines is less tight, which can easily lead to vibration during drag-start operation. This vibration not only affects transmission efficiency but also causes NVH (noise, vibration, and harshness) issues.

[0004] However, lax tolerance control during the manufacturing process, material defects, or insufficient machining precision can all lead to excessive clearance. Furthermore, human error or insufficient tool precision during assembly can also cause clearance to exceed design requirements. Therefore, improving the clearance between the internal splines of the wheel hub and the external splines of the transmission input shaft, and thus enhancing the transmission efficiency of the torque damping device, is a pressing technical issue to be addressed. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the present disclosure provides a wheel hub and a torque vibration reduction device.

[0006] According to a first aspect of an embodiment of the present disclosure, the present disclosure provides a wheel hub, comprising: an internal tooth groove, a plurality of which are arranged along the circumferential direction; a mounting groove, which is located between two adjacent internal tooth grooves along the circumferential direction and passes through the wheel hub axially; an elastic gasket, which is fixed in the mounting groove, and the elastic gasket is provided with an elastic protrusion protruding toward the center direction of the mounting groove, so that after the transmission input shaft is inserted into the wheel hub, the elastic protrusion is squeezed and elastically deformed by the external gear inserted into the mounting groove, so as to eliminate the fitting clearance when the internal tooth groove and the external gear are engaged.

[0007] In some embodiments, a circumferential width of the mounting groove is greater than a circumferential width of the inner tooth groove, and the circumferential width of the mounting groove accommodates at least two outer gears along the circumferential direction.

[0008] In some embodiments, the elastic gasket includes: a bottom plate, which is in contact with the bottom wall of the mounting groove; and side plates, which are circumferentially located on both sides of the bottom plate and are in contact with the circumferential side walls of the mounting groove, wherein the elastic protrusion is arranged on the bottom plate and / or the side plates.

[0009] In some embodiments, the elastic gasket is provided with an axially extending partition hole, the axial length of the partition hole is smaller than the axial length of the elastic gasket, the partition hole is located at the connection between the bottom plate and the side plate to separate part of the bottom plate and the side wall in the circumferential direction, and the elastic protrusion is located at the position where the bottom plate and / or the side plate are separated by the partition hole.

[0010] In some embodiments, the partition hole separates the bottom plate into an intermediate plate, the circumferential width of the intermediate plate is greater than the tooth groove width between the two external gears, wherein the elastic protrusion located on the intermediate plate can abut against the tooth tops of the two external gears, forming a radial preload force and a circumferential friction force on the external gears.

[0011] In some embodiments, a stop protrusion is provided on the radial inner side of the side wall of the installation groove. After the elastic gasket is axially inserted into the installation groove, the stop protrusion is used to abut against the radial inner end of the side plate of the elastic gasket.

[0012] In some embodiments, fixing plates are respectively provided at both axial ends of the elastic gasket, and the fixing plates are bent away from the center of the mounting groove and clamped on the two axial end surfaces of the hub.

[0013] In some embodiments, the elastic protrusion extends axially, and one or more elastic protrusions are arranged along the axial direction.

[0014] In some embodiments, the depth of the mounting groove is greater than the depth of the inner tooth groove, so as to accommodate the elastic gasket.

[0015] According to a second aspect of an embodiment of the present disclosure, the present disclosure provides a torque vibration reduction device, comprising the wheel hub as described in the first aspect.

[0016] The technical solutions provided by the embodiments of the present disclosure can provide the following beneficial effects: The elastic protrusions of the elastic gasket generate a preload between the internal tooth grooves of the wheel hub and the external gear of the transmission input shaft, effectively eliminating the clearance between the meshing of the internal tooth grooves and the external gear, thereby eliminating the vibration and noise caused by clearance during drag starting. Furthermore, the elimination of clearance reduces the risk of surface crushing and excessive wear of the internal tooth grooves and external gears, extending the service life of the wheel hub and transmission input shaft, reducing maintenance costs, and ultimately improving the accuracy, stability, and transmission efficiency of torque transmission between the wheel hub and the transmission input shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] Figure 1 It is a cross-sectional view of the wheel hub with elastic gasket mating with the transmission input shaft;

[0019] Figure 2 is a schematic diagram of the first embodiment when the transmission input shaft is not inserted into the wheel hub;

[0020] Figure 3 yes Figure 2 The three-dimensional structure diagram of the elastic gasket when it is not squeezed;

[0021] Figure 4 is a schematic diagram of the transmission input shaft inserted into the wheel hub shown in the first embodiment;

[0022] Figure 5 yes Figure 4 The three-dimensional structure diagram of the elastic gasket after being squeezed;

[0023] Figure 6 is a schematic diagram of the second embodiment when the transmission input shaft is not inserted into the wheel hub;

[0024] Figure 7 yes Figure 6 The three-dimensional structure diagram of the elastic gasket when it is not squeezed;

[0025] Figure 8 is a schematic diagram of the transmission input shaft inserted into the wheel hub shown in the second embodiment;

[0026] Figure 9 yes Figure 8 The three-dimensional structure diagram of the elastic gasket after being squeezed. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0028] In this disclosure, unless otherwise specified, the axial direction A, radial direction R and circumferential direction W refer to the axial direction A, radial direction R and circumferential direction W of the integrated torque damping device respectively; the radial outer side (or radial outer end) refers to the side away from the outer end in the radial direction R. Figure 1On the side of the central axis O ( Figure 1 The radial inner side (or radial inner end) refers to the side close to the central axis O in the radial direction R ( Figure 1 on the lower side of the center).

[0029] Additionally, a "transmission connection" refers to the ability to transmit driving force / torque between two components. These components can be directly connected or through various transmission mechanisms or connection structures to achieve this function. The term "torsionally rigid connection" refers to a connection between two components that prevents rotation relative to each other. This can be achieved through a press fit (i.e., an interference fit) or by integrally forming the two components. The specific meanings of these terms in the present invention will be understood by those skilled in the art depending on the specific circumstances.

[0030] To address the clearance problem between the wheel hub 10 and the transmission input shaft 200, the present disclosure provides a wheel hub 10 for use in a torque damper. A torque damper is a device positioned between an engine (not shown) and a transmission (not shown) to transmit torque between the engine and transmission and reduce torsional vibration or torsional shock during torque transfer.

[0031] The torque damping device includes a torque damper and a torque limiter. In some embodiments, the torque limiter's friction assembly can be located radially outward from the torque damper's coil spring, with the wheel hub 10 being transmission-connected to the torque damper. In this embodiment, the torque limiter's friction assembly is located radially inward from the torque damper's coil spring, and the wheel hub 10 of the present disclosure is transmission-connected to the torque limiter.

[0032] like Figure 2 and Figure 6 As shown, the inner wall of the wheel hub 10 is provided with an internal spline, and the outer wall of the transmission input shaft 200 is provided with an external spline. When the transmission input shaft 200 is inserted into the wheel hub 10, the torque power transmission between the wheel hub 10 and the transmission input shaft 200 is achieved through the engagement between the external spline and the internal spline.

[0033] The internal spline includes multiple axially extending internal tooth grooves 11, while the external spline includes multiple axially extending external gears 201, which mesh with the internal tooth grooves 11 of the hub 10 to achieve power transmission. The inner wall of the hub 10 is also provided with an axially extending mounting groove 12, located between adjacent internal tooth grooves 11 along the circumferential direction W. The mounting groove 12 axially extends through the hub 10 and has two axial openings to facilitate the axial insertion of the transmission input shaft 200.

[0034] When the transmission input shaft 200 is inserted into the wheel hub 10, the outer gear 201 on the outer wall of the input shaft 200 is inserted into the inner tooth groove 11 of the wheel hub 10 and engaged with the inner tooth groove 11. At the same time, at least one outer gear 201 on the outer wall of the input shaft 200 is inserted into the mounting groove 12 of the wheel hub 10.

[0035] Further, as shown in Figure 1 , the wheel hub 10 is also provided with an elastic gasket 13 fixed in the mounting groove 12. As shown in Figure 3 and Figure 7 , the elastic gasket 13 is provided with an elastic protrusion 131 protruding towards the center of the mounting groove 12. As shown in Figure 4 and Figure 8 , when the transmission input shaft 200 is inserted into the wheel hub 10, the elastic protrusion 131 elastically abuts against the tooth wall of the outer gear 201 inserted into the mounting groove 12. The tooth wall of the outer gear 201 extrudes the elastic protrusion 131, causing elastic deformation of the elastic protrusion 131 (as shown in Figure 5 and Figure 9 ), thereby eliminating the fitting gap when the inner tooth groove 11 is engaged with the outer gear 201.

[0036] Through the elastic protrusion 131 of the elastic gasket 13, the vibration caused by the fitting gap is eliminated, the noise is reduced, the fitting gap when the inner tooth groove 11 is engaged with the outer gear 201 is effectively eliminated, and the accuracy and stability of the transmission are improved. Reducing the fitting gap can also reduce the risk of surface crushing and excessive wear of the inner tooth groove 11 and the outer gear 201, thereby improving the transmission efficiency and mechanical performance. By reducing the wear between the inner tooth groove 11 and the outer gear 201, the service life of the wheel hub 10 and the transmission input shaft 200 is prolonged, and the maintenance cost is reduced. The elastic gasket 13 has a simple structure and low cost, and is fixed in the mounting groove 12 to ensure its stability during operation.

[0037] In some embodiments, the circumferential width of the mounting groove 12 is greater than the circumferential width of the inner tooth groove 11, and at the same time, the depth of the mounting groove 12 is greater than the depth of the inner tooth groove 11, ensuring that the mounting groove 12 has sufficient width to allow the outer gear 201 of the transmission input shaft 200 to be inserted after the elastic gasket 13 is installed. At the same time, the width of the mounting groove 12 can also ensure that the outer gear 201 can abut against the elastic gasket 13 in the mounting groove 12 and extrude the elastic protrusion 131 of the elastic gasket 13.

[0038] Furthermore, the circumferential width of the mounting groove 12 can accommodate at least two external gears 201 along the circumferential direction W. In this embodiment, the circumferential width of the mounting groove 12 can be greater than the width of the two internal tooth grooves 11. When machining the mounting groove 12, the gear between two adjacent internal tooth grooves 11 is flattened on the wheel hub 10, which already has internal tooth grooves 11. This simple and efficient machining method reduces machining difficulty and time.

[0039] In some embodiments, as Figure 3 and Figure 7 As shown, the elastic gasket 13 includes a bottom plate 132 and side plates 133. The side plates 133 are circumferentially located on both sides of the bottom plate 132. After the elastic gasket 13 is installed in the installation groove 12, the bottom plate 132 is in contact with the bottom wall of the installation groove 12, and the side plates 133 are in contact with the circumferential side walls of the installation groove 12, ensuring the stability of the elastic gasket 13 in the installation groove 12.

[0040] In some embodiments, a stop protrusion is provided on the radial inner side of the side wall of the mounting groove 12, and the stop protrusion can protrude toward the center position of the mounting groove 12. The radial inner side of the stop protrusion can be flush with the tooth top wall of the internal spline. The thickness of the stop protrusion is less than the thickness of the side plate 133 of the elastic gasket 13, ensuring that the external gear 201 of the transmission input shaft 200 can be smoothly inserted into the mounting groove 12 without affecting installation and use.

[0041] When the elastic gasket 13 is axially inserted into the mounting groove 12, the stopper protrusion abuts against the radial inner end of the side plate 133 of the elastic gasket 13. The stopper protrusion acts as a radial limit for the elastic gasket 13 in the mounting groove 12, preventing the elastic gasket 13 from radially moving in the mounting groove 12 or even falling out of the mounting groove 12, thereby ensuring the stability and positioning of the elastic gasket 13 in the mounting groove 12.

[0042] In some embodiments, a fixing plate 134 is provided at each axial end of the elastic gasket 13. The fixing plate 134 is bent toward the center direction away from the mounting groove 12 and is clamped on the two axial end faces of the wheel hub 10. The design of the fixing plate 134 prevents the elastic gasket 13 from moving axially relative to the mounting groove 12 of the wheel hub 10, further ensuring its firmness and stability in the mounting groove 12.

[0043] Specifically, when the elastic gasket 13 is not inserted into the mounting groove 12, the fixing piece 134 is not bent and is flush with the bottom plate 132 of the elastic gasket 13. After the elastic gasket 13 is axially inserted into the mounting groove 12, the fixing piece 134 is bent away from the center of the mounting groove 12 so that the fixing piece 134 abuts against the two axial end surfaces of the wheel hub 10.

[0044] It can be seen from this that the dual fixing design of the retaining protrusion and the fixing plate 134 ensures the firmness and stability of the elastic gasket 13 in the mounting groove 12, reduces the radial or axial movement of the elastic gasket 13 during operation, and further improves the NVH performance of the torque vibration reduction device.

[0045] Furthermore, the elastic protrusion 131 is provided on the bottom plate 132 and / or the side plate 133 .

[0046] In the first embodiment, as Figure 3 As shown, the elastic protrusion 131 can be provided on the side plate 133. When the transmission input shaft 200 is inserted into the wheel hub 10, the elastic protrusion 131 elastically abuts against the tooth sidewalls of the external gear 201 of the input shaft 200. The elastic protrusion 131 of the elastic washer 13 interacts with the tooth sidewalls of the external gear 201 of the input shaft 200, generating a circumferential preload between the wheel hub 10 and the transmission input shaft 200 and eliminating the tooth clearance between the internal tooth grooves 11 of the wheel hub 10 and the external gear 201 of the transmission input shaft 200 in the circumferential direction.

[0047] In the second embodiment, as Figure 7 As shown, the elastic protrusion 131 can be provided on the base plate 132. When the transmission input shaft 200 is inserted into the wheel hub 10, the elastic protrusion 131 elastically abuts against the tooth top wall of the external gear 201 of the input shaft 200. The elastic protrusion 131 on the base plate 132 can generate a preload force on the transmission input shaft 200 in the radial direction. This preload force in the radial direction R eliminates the clearance between the internal spline of the wheel hub 10 and the external spline of the transmission input shaft 200.

[0048] In addition, the elastic protrusion 131 located on the base plate 132 can abut against the two external gears 201 of the transmission input shaft 200. In the drag-start working state, that is, when the wheel hub 10 drives the transmission input shaft 200 to rotate, the matching clearance between the internal splines of the wheel hub 10 and the external splines of the transmission input shaft 200 will cause a speed difference between the two. The friction force between the elastic protrusion 131 and the tooth top walls of the two external gears 201 will produce friction hysteresis, which reduces vibration and noise through friction hysteresis, which is beneficial to improving vibration and noise in the drag-start state.

[0049] In some embodiments, as Figure 3 and Figure 7 As shown, the elastic protrusion 131 extends along the axial direction A. The axially extended elastic protrusion 131 has the same extension direction as the inner tooth groove 11 and the outer gear 201, which can increase the axial contact length between the elastic protrusion 131 and the outer gear 201, thereby dispersing the circumferential W or radial R preload force on the outer gear 201 along the axial direction A to avoid local stress concentration.

[0050] Further, a plurality of elastic protrusions 131 can be arranged along the axial direction A. When a plurality of elastic protrusions 131 are arranged along the axial direction A, a plurality of continuous or discontinuous protrusion structures can be formed. The plurality of elastic protrusions 131 are distributed along the axial direction A, further ensuring the dispersion of the circumferential or radial pre-tightening force of the external gear 201 along the axial direction A, reducing local stress concentration, and improving stability.

[0051] When the elastic protrusions 131 are arranged on the bottom plate 132, the plurality of elastic protrusions 131 are in contact with the tooth top wall of the external gear 201 of the transmission input shaft 200, ensuring that the friction force is uniformly distributed in the axial direction A, reducing vibration and noise, improving NVH performance, reducing local stress concentration and wear, prolonging the service life of the elastic washer 13 and the external gear 201, and reducing maintenance costs.

[0052] Among them, the plurality of elastic protrusions 131 can better adapt to the mounting groove 12 and the external gear 201 of different axial lengths, and the specific number of elastic protrusions 131 can be determined according to actual needs and design requirements, improving the flexibility and scope of application.

[0053] In some embodiments, the elastic washer 13 is provided with an axially extending partition hole 135, the axial length of the partition hole 135 is less than the axial length of the elastic washer 13, and the partition hole 135 is arranged on the bottom plate 132 and the side plate 133. Figure 3 and Figure 7 It can be seen that the axial ends of the partition hole 135 are closed, the partition hole 135 is located at the connection between the bottom plate 132 and the side plate 133 to separate part of the bottom plate 132 and the side wall in the circumferential direction, and the elastic protrusion 131 is located at the position of the bottom plate 132 and / or the side plate 133 separated by the partition hole 135.

[0054] The partition hole 135 can ensure that the elastic protrusion 131 located on the side plate 133 and the bottom plate 132 can deform more freely under stress, fully exerting its elastic effect. The partition hole 135 not only improves the elastic performance of the elastic washer 13, but also ensures that the elastic protrusion 131 can better contact the external gear 201 of the transmission input shaft 200, provide uniform pre-tightening force and friction force, reduce vibration and noise, improve NVH performance, avoid the extrusion stress of the external gear 201 of the transmission input shaft 200 on the elastic washer 13 concentrated at the connection between the side plate 133 and the bottom plate 132 of the elastic washer 13, and prolong the service life of the elastic washer 13.

[0055] In some embodiments, the partition hole 135 separates the bottom plate 132 into an intermediate plate 136. The intermediate plate 136 can form an independent elastic area. The circumferential width of the intermediate plate 136 is greater than the tooth groove width between the two external gears 201, so that the elastic protrusion 131 located on the intermediate plate 136 can abut against the tooth tops of the two external gears 201. This not only ensures that the elastic protrusion 131 located on the intermediate plate 136 can deform more freely when subjected to force, but also allows the elastic protrusion 131 to form a radial preload and a circumferential friction force on the external gear 201, thereby providing effective preload and friction.

[0056] It is understood that in this disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0057] It will be further understood that the terms "first," "second," and the like are used to describe various structures, but these structures should not be limited to these terms. These terms are merely used to distinguish structures of the same type from one another and do not indicate a particular order or degree of importance. In fact, the expressions "first," "second," and the like are fully interchangeable. For example, a first structure could also be referred to as a second structure, and similarly, a second structure could also be referred to as a first structure without departing from the scope of this disclosure.

[0058] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered merely as exemplary, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0059] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A wheel hub (10), characterized in that: include: A plurality of inner tooth grooves (11) are arranged along the circumferential direction; A mounting groove (12) is located between two adjacent inner tooth grooves (11) along the circumferential direction and axially penetrates the wheel hub (10); An elastic gasket (13) is fixed in the mounting groove (12), and the elastic gasket (13) is provided with an elastic protrusion (131) protruding toward the center direction of the mounting groove (12). After the transmission input shaft (200) is inserted into the wheel hub (10), the elastic protrusion (131) is squeezed by the external gear (201) of the transmission input shaft (200) inserted into the mounting groove (12) and elastically deformed, so as to eliminate the matching clearance when the internal tooth groove (11) and the external gear (201) are engaged.

2. The wheel hub (10) according to claim 1, characterized in that The circumferential width of the mounting groove (12) is greater than the circumferential width of the internal tooth groove (11), and the circumferential width of the mounting groove (12) accommodates at least two external gears (201) along the circumferential direction.

3. The wheel hub (10) according to claim 2, characterized in that The elastic gasket (13) comprises: A bottom plate (132) is fitted with the bottom wall of the mounting groove (12); and The side plates (133) are located on both sides of the bottom plate (132) along the circumferential direction and fit the circumferential side walls of the mounting groove (12). Wherein, the elastic protrusion (131) is arranged on the bottom plate (132) and / or the side plate (133).

4. The wheel hub (10) according to claim 3, characterized in that The elastic gasket (13) is provided with an axially extending partition hole (135), the axial length of the partition hole (135) is smaller than the axial length of the elastic gasket (13), the partition hole (135) is located at the connection between the bottom plate (132) and the side plate (133), so as to separate a part of the bottom plate (132) and the side plate (133) in the circumferential direction, and the elastic protrusion (131) is located at a position where the bottom plate (132) and / or the side plate (133) are separated by the partition hole (135).

5. The wheel hub (10) according to claim 4, characterized in that The partition hole (135) divides the bottom plate (132) into an intermediate plate (136), and the circumferential width of the intermediate plate (136) is greater than the tooth gap width between the two external gears (201). The elastic protrusion (131) on the intermediate plate (136) can abut against the tooth tops of the two external gears (201), thereby generating a radial preload force and a circumferential friction force on the external gears (201).

6. The wheel hub (10) according to claim 3, characterized in that The side wall of the installation groove (12) is provided with a stop protrusion on the radial inner side. After the elastic gasket (13) is axially inserted into the installation groove (12), the stop protrusion is used to abut against the radial inner end of the side plate (133) of the elastic gasket (13).

7. The wheel hub (10) according to claim 1, characterized in that A fixing piece (134) is provided at each axial end of the elastic gasket (13), and the fixing piece (134) is bent in a direction away from the center of the mounting groove (12) and is clamped on the two axial end faces of the hub (10).

8. The wheel hub (10) according to claim 1, characterized in that The elastic protrusion (131) extends in the axial direction, and one or more elastic protrusions (131) are arranged in the axial direction.

9. The wheel hub (10) according to claim 1, characterized in that The depth of the mounting groove (12) is greater than the depth of the inner tooth groove (11) and is used to accommodate the elastic gasket (13).

10. A torque vibration reduction device, characterized in that: include: The wheel hub (10) according to any one of claims 1 to 9.

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