Bearing shell for a ball joint, ball joint with such a bearing shell, and chassis component with such a ball joint

Abstract

Bearing shell for a ball joint (2) and for movably receiving a ball joint (8), and with a bearing shell opening (32), with a support surface (12) facing away from the bearing shell opening (32) for bearing against a housing base (13), wherein the support surface (12) is designed in a circular or annular shape and the support surface (12) is arranged centrally and / or coaxially to a central longitudinal axis (10) of the bearing shell (3), and with an annular flange surface (14) circumferentially to the central longitudinal axis (10) and the support surface (12), wherein the flange surface (14) is oriented transversely or perpendicularly to the central longitudinal axis (10), wherein the flange surface (14) is arranged in a stepped manner with respect to the support surface (12) and the support surface (12) projects in the axial direction of the central longitudinal axis (10) with respect to the flange surface (14),wherein the flange surface (14) is designed to abut a housing edge (15) that is stepped relative to the housing base (13), characterized in that an annular recess (26) is formed between the flange surface (14) and the support surface (12), wherein several stiffening ribs (26) are arranged within the annular recess (26) between the support surface (12) and the flange surface (14).

Description

[0001] The invention relates to a bearing shell for a ball joint and for movably receiving a ball joint, and with a bearing shell opening, with a support surface facing away from the bearing shell opening for bearing against a housing base, wherein the support surface is designed in a circular or ring-shaped manner and the support surface is arranged centrally and / or coaxially to a central longitudinal axis of the bearing shell, and with an ring-shaped flange surface coaxial to the central longitudinal axis and the support surface, wherein the flange surface is oriented transversely or perpendicularly to the central longitudinal axis, wherein the flange surface is arranged in a step-like manner with respect to the support surface and the support surface projects in the axial direction of the central longitudinal axis with respect to the flange surface, wherein the flange surface is designed for bearing against a housing edge that is step-like with respect to the housing base.Furthermore, the invention relates to a ball joint with such a bearing shell and a chassis component with such a ball joint.

[0002] Such a bearing shell, such a ball joint and such a corresponding chassis component are known from EP 2 122 188 B1, wherein an end wall pre-stressed in the manner of a disc spring is formed between the support surface and the flange surface.

[0003] From DE 10 2019 208 143 A1, a bearing shell is known in which the flange surface and the support surface rest on the same housing base. The support surface can therefore only protrude slightly, namely by less than 0.1 mm, in the axial direction of the central longitudinal axis beyond the flange surface.

[0004] Since the support surface and the joint surface are practically at the same height, a corresponding amount of installation space is required. Depending on the specific installation situation, this space may not be sufficient. Therefore, it is a fundamental goal to minimize the necessary installation space. Furthermore, material savings are also of interest with regard to weight reduction and / or cost-effective manufacturing.

[0005] The object of the invention is to further develop a bearing shell, a ball joint and / or a chassis component of the type mentioned above in such a way that the installation space requirement is reduced. In particular, an alternative embodiment is to be provided.

[0006] The problem underlying the invention is solved by means of a bearing shell according to claim 1, by means of a ball joint according to claim 4, and by means of a chassis component according to claim 8. Preferred embodiments of the invention are found in the dependent claims and in the following description.

[0007] The bearing shell is designed for a ball joint, in particular for forming or manufacturing a ball joint, and for movably receiving a ball joint. Specifically, the bearing shell has an interior space for movably receiving the ball joint. This interior space can have a spherical segment-shaped inner surface. In particular, the spherical segment-shaped inner surface corresponds to the outer circumference and / or radius of the ball joint. The ball joint can be positively engaged and movably received or mounted within the interior space of the bearing shell.

[0008] The bearing shell has a bearing shell opening, which is delimited, in particular, by an annular rim. Specifically, the diameter of the bearing shell opening is determined or defined by an inner diameter of the annular rim. The bearing shell has a support surface facing away from the bearing shell opening for bearing against a housing base. Specifically, the housing base is a component of a joint housing and / or housing cover that is separate from or designed separately from the bearing shell. The support surface is circular or annular. Specifically, the support surface is arranged centrally and / or coaxially with a central longitudinal axis of the bearing shell. Furthermore, the bearing shell has an annular flange surface that surrounds the central longitudinal axis and the support surface, coaxially with that axis.

[0009] Here, the flange surface is oriented transversely or perpendicularly to the central longitudinal axis. According to the invention, the flange surface is arranged in a stepped manner relative to the support surface, wherein the support surface projects axially in the direction of the central longitudinal axis relative to the flange surface, and the flange surface is designed to abut a housing edge that is stepped relative to the housing base.

[0010] An advantage of this design is that the stepped arrangement of the support surface and the flange surface allows for a bearing shell with a smaller installation space requirement. The flange surface does not rest on the same housing base as the support surface, but rather on a separate housing edge that is also stepped and offset from the housing base.

[0011] According to a further development, the offset between the support surface and the flange surface is at least 10%, in particular at least 15%, 20%, or 25%, of the total height of the bearing shell. Preferably, the offset is defined as a distance between the support surface and the flange surface. In particular, the total height and the offset are measured axially to the central longitudinal axis. Preferably, the total height and the offset are determined in the final assembly state of the bearing shell within the joint housing.

[0012] According to a further embodiment, a total support surface acting in the axial direction of the central longitudinal axis is provided by means of the support surface and the flange surface. This total support surface resulting from the support surface and the flange surface covers at least 65%, in particular at least 70%, at least 75%, or at least 80%, of the maximum diameter of the bearing shell.

[0013] Particularly due to the circular or annular shape of the support surface, a flat and / or full-surface support of the bearing shell against the housing base is enabled. This reduces the risk of undesirable deformation and / or increased wear of the bearing shell when used in a ball joint. In particular, the risk of material creep in the bearing shell is reduced. Preferably, the circular or annular support surface extends radially outwards from the central longitudinal axis. Specifically, the center point of the circular or annular support surface lies on the central longitudinal axis. The support surface is designed such that it can bear against the housing base over its entire surface.

[0014] Preferably, the bearing shell and / or the ball joint has a joint axis and / or a central longitudinal axis about which the ball joint, the ball joint, and / or the inner part of the joint is movable. Preferably, the joint axis and / or the central longitudinal axis extends axially along the bearing shell, the ball joint, and / or the inner part of the joint. The joint axis and the central longitudinal axis may coincide. Preferably, the joint axis is the central longitudinal axis. In particular, the bearing shell and / or the ball joint is rotationally symmetrical or substantially rotationally symmetrical with respect to the joint axis and / or the central longitudinal axis. The joint axis and / or the central longitudinal axis may pass through the center point of the ball joint.

[0015] Within the scope of this application, the term "radial" can denote any direction perpendicular to the axial direction of the bearing shell, ball joint, joint axis, and / or central longitudinal axis. The term "axial" can denote any direction parallel to the axial direction of the bearing shell, ball joint, and / or central longitudinal axis.

[0016] The ball joint and / or the inner joint component can be rotatably and / or tiltably mounted in the bearing shell. In particular, a pivotally movable mounting and / or a pivotally mounted ball joint in the bearing shell is understood to mean pivoting, tilting, and / or rotating mobility. Preferably, a pivotally movable mounting and / or a pivotally mounted connection of two components refers to a connection of the two components by means of a joint such that the two components can be rotated relative to each other about at least one axis of rotation. Thus, pivotally mounted connections about exactly one axis of rotation, about exactly two axes of rotation, or about exactly three axes of rotation are possible. In particular, a pivotally mounted connection does not permit any translational movement of the two components relative to each other.

[0017] According to a further development, the support surface has a diameter that corresponds to at least 2 / 3 or at least 3 / 4 of a maximum inner diameter of the interior and / or a maximum outer diameter of the ball joint. In particular, the diameter of the support surface extends perpendicular to the central longitudinal axis of the bearing shell. Preferably, the center point of the support surface lies on the central longitudinal axis. Thus, the support surface covers a large portion of the diameter of the interior and / or the ball joint. This enables a large-area support of the bearing shell against the housing base. In particular, the support surface has a diameter that corresponds to at least 2 / 3 or at least 3 / 4 of a maximum outer diameter of the bearing shell.

[0018] According to a further embodiment, a section of the bearing shell between the support surface and the inner surface of the interior, particularly in the axial direction and / or parallel to the central longitudinal axis of the bearing shell, is solid and / or made of a single piece of material. Thus, there are no gaps in the section between the support surface and the inner surface of the interior into which the material of the bearing shell could flow under sufficient load. This significantly reduces or completely prevents the risk of undesirable deformation of the bearing shell. Preferably, the bearing shell is made of a plastic.

[0019] Due to the spherical segment-shaped inner surface of the interior and the circular or annular shape of the support surface, the section between the support surface and the inner surface of the interior exhibits a radial reduction in cross-section from the outside inwards, particularly along the central longitudinal axis, and / or a wedge-shaped decrease in material thickness. This shape of the section between the support surface and the inner surface helps prevent material flow in the bearing shell. In particular, if the ball joint located in the interior is designed without a pole surface, this prevents undesirable material flow.

[0020] According to a further embodiment, the support surface rises conically from a circular edge of the support surface towards a central point of the support surface at an angle of less than 10 degrees, less than 5 degrees, or less than 3 degrees, particularly at an angle of 1 degree. With a substantially flat housing base, in combination with such a support surface and when the bearing shell is mounted in a hinged housing where sufficient contact pressure is exerted on the housing base by the support surface, this results in compression and / or preloading of the bearing shell material in the section between the support surface and the inner surface of the interior, thereby further preventing undesirable material flow. In particular, the support surface is pressed against the housing base across its entire surface in the mounted state.

[0021] The support surface can have a central point. In particular, the central point lies on the central longitudinal axis and / or is rotationally symmetrical to the central longitudinal axis. A center point of the disk-like support surface can simultaneously form a center point of the central point. The central point of the support surface can be designed as a injection point. Preferably, the bearing shell is manufactured using a single injection point in an injection molding process. The central point can be designed as a raised area in the support surface. The central point and / or the raised area can be ring-shaped. Preferably, the housing base has a recess corresponding to the central point for receiving it, preferably in a form-fitting manner.

[0022] According to the invention, an annular recess is formed between the flange surface and the support surface. The annular recess can have a substantially U-shaped or V-shaped cross-section. In particular, the annular recess is designed as a reservoir for receiving a lubricant. Preferably, the lubricant is used to lubricate the ball joint in the interior of the bearing shell. In particular, the recess serves as a reservoir for receiving excess lubricant.

[0023] According to the invention, several stiffening ribs are arranged between the support surface and the flange surface and within the ring-shaped recess. These stiffening ribs counteract deformation of the bearing shell due to the stepped offset and / or the ring-shaped recess. In particular, the ring-shaped recess has a first inner surface associated with the support surface and a further inner surface associated with the flange surface. The stiffening ribs, preferably viewed circumferentially of the bearing shell, are arranged on the first inner surface and extend in the region of the flange surface to the further inner surface. This achieves optimal stiffening of the ring-shaped recess.

[0024] According to a further development, at least one channel extends from the inner surface of the interior to the annular recess. Thus, the channel connects the interior to the annular recess. In particular, the channel is aligned parallel to the central longitudinal axis. Preferably, the channel is tubular in design. The channel allows for ventilation of the interior when the ball joint is inserted. Specifically, excess lubricant can be drained from the interior and channeled into the annular recess when the ball joint is inserted. Preferably, several channels are arranged evenly distributed around the circumference of the bearing shell. For example, the bearing shell can have three channels.

[0025] According to a further embodiment, a first section of the outer circumference of the bearing shell is designed as a spherical segment-shaped ring section. A second section of the outer circumference of the bearing shell can be designed as a cylindrical section. A further section of the outer circumference can be designed as an annular edge section projecting radially outwards beyond the cylindrical section to the central longitudinal axis. In particular, the bearing shell is formed from the three sections mentioned above. Here, the cylindrical section can connect the spherical segment-shaped ring section with the annular edge section.

[0026] According to a further development, the bearing shell opening is formed by a spherical segment-shaped ring section. In this case, the spherical segment-shaped ring section is bent radially inwards to the central longitudinal axis to form the bearing shell opening. In an unassembled state, the inner radius and / or outer radius of the spherical segment-shaped ring section is larger than the outer radius of the ball joint and / or larger than the inner radius of a joint housing, particularly a section of the joint housing, for receiving the spherical segment-shaped ring section. Thus, while the spherical segment-shaped ring section is pre-formed to receive, and especially to hold, the ball joint, it does not yet have the same shape in the unassembled state as it does in the assembled state.In particular, the inner diameter of the bearing shell opening is larger in the unmounted state than in the mounted state, where the bearing shell accommodates the ball joint and is arranged in a joint housing. The pre-formed, spherical segment-shaped ring section, present in the unmounted state, allows the ball joint to be inserted into the interior of the bearing shell. For this purpose, the spherical segment-shaped ring section can be elastically deformed radially outwards or away from the central longitudinal axis for a short time during insertion of the ball joint. At the same time, the pre-formed spherical segment-shaped ring section prevents excessive stress on the bearing shell material, especially in the area of ​​the bearing shell opening, when inserting the ball joint into the interior and / or when mounting the bearing shell in a joint housing.

[0027] Preferably, the inner and / or outer radius of the spherical segment-shaped ring section is designed such that, when the bearing shell is installed in a joint housing, the deformation of the bearing shell material remains below a limit to prevent material cracking. In particular, the deformation of the spherical segment-shaped ring section during installation of the bearing shell in the joint housing takes the form of an elongation and / or stretching of the bearing shell material of less than 10% or less than 6%. This prevents undesirable damage or weakening of the bearing shell material.

[0028] A ball joint with a bearing shell according to the invention is particularly advantageous, wherein the bearing shell is arranged in a joint housing and the support surface rests flat against the housing base and the flange surface rests flat against the housing edge, and the flange surface is arranged in a stepped manner relative to the support surface and the housing edge relative to the housing base. In particular, the ball joint and / or the bearing shell is designed for use in a chassis component of a vehicle, preferably a motor vehicle. Thus, the ball joint and / or the bearing shell can be arranged in a chassis component. Ball joints can be used in a variety of ways in vehicle construction. In particular, in the chassis, ball joints serve to connect chassis components, such as control arm components, wheel carriers, tie rods, or the like, to each other or to the vehicle body or an axle carrier attached thereto.Preferably, ball joints have a joint housing that is open on at least one side and has a housing recess for receiving an inner joint part. The inner joint part can be designed as a ball sleeve or as a ball stud. If it is designed as a ball stud, a stud section of the inner joint part can extend out of the housing opening and the bearing shell opening.

[0029] Preferably, the housing base and the stepped housing edge are designed as components of a hinged housing. In particular, the housing base and the stepped housing edge are implemented as components of a housing cover. The housing cover can, in turn, be a component of a hinged housing and / or close an opening of the hinged housing.

[0030] According to a further development, an inner joint component includes a ball joint. The inner joint component is movably mounted in the bearing shell, specifically in the interior of the bearing shell, by means of the ball joint. In particular, the inner joint component is designed as a ball stud.

[0031] According to a further embodiment, the ball joint has a first sensor element, in particular a magnet, wherein the first sensor element interacts with a further sensor element, in particular a magnetic field-sensitive sensor or Hall sensor. The first sensor element and the further sensor element can be part of a sensor device or form a sensor device. The sensor device can be configured to determine the height of a chassis. In particular, the position and / or orientation of the inner joint part relative to the joint housing can be determined by means of the sensor device. Preferably, the further sensor element is arranged on a side of a joint housing or housing cover facing away from the housing base. In particular, the joint housing or housing cover has a receptacle for attaching the further sensor element or a mounting element with the further sensor element.The mounting element can be designed as a plug. Preferably, the mounting element is positively engaged and / or held in the receptacle.

[0032] According to a further development, a spherical segment-shaped annular section of the bearing shell, particularly as a first section of the outer circumference of the bearing shell, is positively engaged with an inner wall of the joint housing. Due to the mounting of the bearing shell in the joint housing, a deformation of the bearing shell material, especially of the material of the spherical segment-shaped annular section of the bearing shell, may occur below a limit to prevent material cracking. Preferably, this deformation, particularly of the spherical segment-shaped annular section of the bearing shell, takes the form of an elongation and / or stretching of the bearing shell material of less than 10% or less than 6%.

[0033] In a further embodiment, an end face of the edge of the bearing shell opening rests against a contact surface of the joint housing that extends radially and / or perpendicularly to the central longitudinal axis of the bearing shell. This secures the bearing shell in the joint housing, at least in the axial direction of the central longitudinal axis. In particular, the contact surface of the joint housing provides a flow stop to prevent the bearing shell material from flowing. The radial and / or perpendicular orientation of the contact surface to the central longitudinal axis of the bearing shell can enable or simplify the circular manufacturing of the joint housing and / or the contact surface.

[0034] The ball joint can be designed without a pole surface, particularly as a solid sphere. Specifically, the ball joint rests fully against the inner surface of the interior facing away from the bearing shell opening. Due to the use of a ball joint without a pole surface, especially in conjunction with the bearing shell's support surface, undesirable material flow of the bearing shell can be avoided. Preferably, the ball joint is part of an inner joint component. This inner joint component can, for example, have a pin section extending from the ball joint out of the bearing shell opening and a housing opening.

[0035] Furthermore, a chassis component with a ball joint according to the invention is particularly advantageous. In particular, the chassis component is designed for a vehicle, for example, a motor vehicle. Preferably, the chassis component is designed for the vehicle's chassis and / or is installed in the vehicle's chassis. The chassis component can be, for example, a sway bar link, a suspension link, a two-point link, a control arm, or a stabilizer bar. Particularly in the chassis, chassis components serve to connect other chassis components to each other or to the vehicle body or an axle carrier attached thereto by means of a pivot.

[0036] In particular, the ball joint and / or the chassis component is further developed according to all embodiments described in connection with the bearing shell according to the invention as described herein. Furthermore, the bearing shell described herein can be further developed according to all embodiments described in connection with the ball joint and / or the chassis component.

[0037] The invention is explained in more detail below with reference to the figures. Reference numerals refer to identical, similar, or functionally equivalent components or elements. The figures show: Fig. 1 a cutaway side view of a chassis component according to the invention with a ball joint according to the invention and with a bearing shell according to the invention, Fig. 2 a perspective side view of the bearing shell according to the invention, Fig. 3 a perspective side view of the chassis component according to the invention Fig. 1 with a first housing cover, and Fig. 4 a perspective side view of a chassis component according to the invention with a further housing cover.

[0038] Fig. Figure 1 shows a cutaway side view of a chassis component 1 according to the invention, with a ball joint 2 according to the invention and with a bearing shell 3 according to the invention. In this embodiment, the ball joint 2 is designed as a ball and pin joint.

[0039] The ball joint 2 has a joint housing 4. In this embodiment, the joint housing 4 is designed as an integral part of the chassis component 1. In this embodiment, the chassis component 1 is implemented as a suspension link.

[0040] The joint housing 4 has a housing recess 5 for receiving the bearing shell 3. In this embodiment, the housing recess 5 is designed as a through-hole or a through-opening.

[0041] The joint housing 4 has a housing opening 6 from which an inner joint part 7 extends outwards. The inner joint part 7 has a ball joint 8 and a pin section 9, the pin section 9 extending out of the housing opening 6 and out of the joint housing 4. The ball joint 8, or the inner joint part 7, is articulated within the bearing shell 3. The inner joint part 7 is rotatable about a central longitudinal axis of the inner joint part 7 and pivotable about a center point 11 of the ball joint 8. In the position of the inner joint part 7 shown here, its central longitudinal axis coincides with a central longitudinal axis 10 of the bearing shell 3.

[0042] On a side facing away from the housing opening 6, a support surface 12 of the bearing shell 3 rests against a housing base 13, and a flange surface 14 of the bearing shell 3 rests against a housing edge 15 of the joint housing 4. The housing base 13 and the housing edge 15 each extend perpendicular to the central longitudinal axis 10. In this embodiment, the housing base 13 and the housing edge 15 are part of a housing cover 16. The housing cover 16 closes the housing recess 5 on a side of the joint housing 4 facing away from the housing opening 6.

[0043] The housing base 13 and the housing rim 15 are offset from each other in a stepped manner. This causes the portion of the housing cover 16 to extend further outwards in the axial direction of the central longitudinal axis 10 than the portion of the housing cover with the housing rim 15. In this embodiment, the housing rim 15 also forms an edge of the housing cover 16. The housing cover 16 is fixed to the joint housing 4 or the chassis component 1 by means of a rolled edge 17.

[0044] In this embodiment, the housing base 13 has a recess 18 that is rotationally symmetrical about the central longitudinal axis 10. The recess 18 corresponds to a central point 19 of the support surface 12, which is formed as a raised section. Thus, the raised central point 19 is positively engaged in the recess 18. Here, the central point 19 serves as a gate point for injection molding to produce the bearing shell 3.

[0045] The bearing shell 3 has a bearing shell opening 32. The pin section 9 of the inner joint part 7 extends outwards through the bearing shell opening 32. On a side of the bearing shell 3 facing away from the bearing shell opening 32, the support surface 12 and the flange surface 14 are formed.

[0046] An inner surface of the housing recess 5 has a step 20 for the positive engagement of an annular edge section 21 of the bearing shell 3. The annular edge section 21 is positively engaged in or held between the step 20 and the housing edge 15 of the housing cover 16.

[0047] In this embodiment, the ball joint 8 has a first sensor element 22. The first sensor element 22 is designed as a magnet. Here, the first sensor element 22 is arranged on, or received in, the ball joint 8 on a side facing away from the pin section 9. The first sensor element 22 interacts with a further sensor element 23. For this purpose, the further sensor element 23 is designed as a magnetic field-sensitive sensor. The further sensor element 23 is arranged on a side of the housing cover 16 facing away from the housing base 13 and is held on the housing cover 16. In this embodiment, the further sensor element 23 is received in a mounting element 24. The mounting element 24 is designed as a type of connector. Furthermore, the mounting element 24 is positively engaged and held in a receptacle 25.In this embodiment, the receptacle 25 is designed as a component of the housing cover 16 and is formed on a side of the housing cover 16 facing away from the housing base 13.

[0048] Fig. Figure 2 shows a perspective side view of the bearing shell 3 according to the invention. Fig. 1. As already mentioned in Fig. As can be seen in Figure 1, the flange surface 14 is arranged in a stepped arrangement relative to the support surface 12. Thus, the support surface 12 is aligned axially with the central longitudinal axis 10 according to Figure 1. Fig. 1 and in relation to the federal area 14 before.

[0049] The support surface 12 is circular or ring-shaped. In this embodiment, the central point 19 is formed as a raised area in the support surface 12. Here, the central point 19 is, by way of example, ring-shaped. The central point 19 is designed as a injection point, with the bearing shell 3 being manufactured by means of an injection molding process. In this embodiment, the bearing shell 3 has a single injection point or injection point at the central point 19.

[0050] In this embodiment, an annular recess 26 is formed between the flange surface 14 and the support surface 12. The annular recess 26 has a first inner surface 27 associated with the support surface 12. Furthermore, the annular recess 26 has a second inner surface 28 associated with the flange surface 14. Thus, the two inner surfaces 27 and 28 are arranged opposite each other.

[0051] Furthermore, in this embodiment, several stiffening ribs 29 are arranged within the ring-shaped recess 26. For the sake of clarity, not all stiffening ribs 29 are provided with a reference numeral. In this embodiment, the stiffening ribs 29 are arranged on the first inner surface 28 and extend from this point in a wedge shape into the recess 26.

[0052] Fig. Figure 3 shows a perspective side view of the chassis component 1 according to the invention. Fig. 1 with the housing cover 16. The mounting element 24 is omitted according to Fig. 1. The design of the receptacle 25 of the housing cover 16 is clearly visible. The mounting element 24 according to Fig. 1 is designed accordingly in a form corresponding to the form.

[0053] Fig. Figure 4 shows a perspective side view of a chassis component 1 according to the invention with a further housing cover 30. Identical features bear the same reference numerals as before. Reference is also made to the preceding description. The housing cover 30 also largely corresponds to the housing cover 16 according to [reference missing]. Fig. 1. In contrast to the housing cover 16, the housing cover 30 shown here does not have a receptacle 25 for a mounting element 24. Accordingly, in this embodiment, the ball joint 8 also does not have a first sensor element 22. In this embodiment, the ball joint 8 is designed with a pole surface 31. Reference sign 1 chassis component 2 ball joints 3 bearing cup 4 joint housings 5 Housing recess 6 Housing opening 7. Inner joint part 8 ball joints 9 T-section 10 Central longitudinal axis 11 Center 12 Support surface 13 Case bottom 14 bundle area 15 Case edge 16 Housing covers 17 Roll edge 18 In-depth study 19 Center Level 20 21 marginal section 22 first sensor element 23 additional sensor element 24 Mounting element 25 recording 26 In-depth study 27 first inside 28 second inside 29 stiffening rib 30 additional case covers 31 Polar area

Claims

Bearing shell for a ball joint (2) and for movably receiving a ball joint (8), and with a bearing shell opening (32), with a support surface (12) facing away from the bearing shell opening (32) for bearing against a housing base (13), wherein the support surface (12) is designed in a circular or annular shape and the support surface (12) is arranged centrally and / or coaxially to a central longitudinal axis (10) of the bearing shell (3), and with an annular flange surface (14) circumferentially to the central longitudinal axis (10) and the support surface (12), wherein the flange surface (14) is oriented transversely or perpendicularly to the central longitudinal axis (10), wherein the flange surface (14) is arranged in a stepped manner with respect to the support surface (12) and the support surface (12) projects in the axial direction of the central longitudinal axis (10) with respect to the flange surface (14),wherein the flange surface (14) is designed to abut a housing edge (15) that is stepped relative to the housing base (13), characterized in that an annular recess (26) is formed between the flange surface (14) and the support surface (12), wherein several stiffening ribs (26) are arranged within the annular recess (26) between the support surface (12) and the flange surface (14). Bearing shell according to claim 1, characterized in that an offset between the support surface (12) and the flange surface (14) is at least 10%, in particular at least 15% or at least 20% or at least 25%, of the total height of the bearing shell (3), preferably the total height and the offset are measured in the axial direction to the central longitudinal axis (10) and / or in a fully assembled state. Bearing shell according to claim 1 or 2, characterized in that by means of the support surface (12) and the flange surface (14) a total support surface acting in the axial direction of the central longitudinal axis (10) is provided which covers at least 65%, in particular at least 70% or at least 75% or at least 80% with respect to the maximum diameter of the bearing shell (3). Ball joint with a bearing shell according to one of the preceding claims, wherein the bearing shell (3) is arranged in a joint housing (4) and the support surface (12) lies flat against the housing base (13) and the flange surface (14) lies flat against the housing edge (15), and the flange surface (14) is arranged in a stepped manner in relation to the support surface (12) and the housing edge (15) is arranged in relation to the housing base (13). Ball joint according to claim 4, characterized in that the housing base (13) and the housing edge (15) which is offset in a step-like manner to the housing base (13) are designed as components of a joint housing (4) or a housing cover (16, 30). Ball joint according to claim 4 or 5, characterized in that an inner joint part (7) has the ball joint (8) and the inner joint part (7) is mounted in the bearing shell (3) so as to be movable by means of the ball joint (8). Ball joint according to claim 6, characterized in that the joint ball (8) has a first sensor element (22), in particular a magnet, wherein the first sensor element (22) interacts with a further sensor element (23), in particular a magnetic field-sensitive sensor or Hall sensor, preferably the further sensor element (23) is arranged on a side of a joint housing (4) or housing cover (16) facing away from the housing base (13). Chassis component with a ball joint (2) according to one of claims 4 to 7 .

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