Axial-radial sliding bearing

Abstract

The invention relates to an axial-radial sliding bearing (1), comprising: a first bearing element and a second bearing element (4, 5, 6) in the form of a first bearing ring (2), which bearing elements are arranged so as to be rotatable relative to one another about a bearing axis (A), which second bearing element forms a substantially U-shaped cross-section in order to receive the first bearing ring at least in sections; and a sliding element (7, 8) made of a polymer material, the sliding element being arranged between the first and second bearing elements in order to decouple the bearing elements in the axial direction and in the radial direction. The second bearing element has two bearing disc sections (4, 6) which are spaced apart from each other and at least one bearing column section (5) which is arranged between the two bearing disc sections and which is oriented coaxially with respect to the first bearing ring, and wherein the sliding element has: at least one axial sliding ring (7) for being arranged between radial surfaces (50, 21) of the two bearing elements which are associated with each other; and two radial slip rings (8) for being arranged between axial surfaces (20a, 40) of the two bearing elements associated with each other.

Description

Technical Field

[0001] The invention relates to an axial-radial sliding bearing, comprising: a first bearing element in the form of a first bearing ring; a second bearing element, wherein the bearing elements are arranged rotatably relative to each other about a bearing axis and the second bearing element forms a substantially U-shaped cross section in order to at least partially accommodate the first bearing ring; and a sliding element made of a polymer material, which is arranged between the first and second bearing elements in order to decouple the bearing elements axially and radially. Background Art

[0002] This type of axial-radial sliding bearing is constructed to receive not only axial forces but also radial forces and is used, for example, for circular indexing tables, indexers, configurations for CNS rotation axes, etc. As a polymer material for manufacturing sliding elements, a tribologically suitable polymer can be used, which can usually be used without lubricants. For example, a type of axial-radial sliding bearing of this type is described in utility model document DE 20 2013101 374U1. The advantages of this type of traditional sliding bearing are particularly visible in the low friction of bearing elements relative to each other, maintenance-free operation, inexpensive manufacturing, and a firm structural type and high wear resistance. These numerous advantages have such a result: such bearings, especially axial-radial sliding bearings configured as polymer circular indexing table bearings (PAT), are increasingly added to very different fields.

[0003] However, there are efforts to further expand the field of application of such axial-radial plain bearings, in particular to applications in which relatively small or light components, for example in vehicles, can be arranged so as to be pivotable relative to a fixed support section, so that the described conventional axial-radial plain bearings, such as those used in the field of CNC machines, are overdimensioned for other fields of application and are therefore cost-intensive to manufacture and assemble. Summary of the invention

[0004] In this regard, the invention is based on the object of providing an axial-radial plain bearing known per se which is also used for applications in which the components to be pivoted relative to one another are kept relatively light and small in comparison with conventional axial-radial plain bearings.

[0005] The invention achieves this object by an axial-radial sliding bearing having the features of claim 1. The axial-radial sliding bearing according to the invention comprises: a first bearing element in the form of a first bearing ring; and a second bearing element, wherein the bearing elements are arranged rotatably relative to each other about the bearing axis and the second bearing element forms a substantially U-shaped cross section in order to receive the first bearing element or the first bearing ring at least in sections; and a sliding element made of a polymer material, which is arranged between the first and second bearing elements in order to decouple the bearing elements axially and radially. The axial-radial sliding bearing according to the invention is characterized in that the second bearing element has two bearing disk sections spaced apart from each other, in particular a bearing disk, and at least one bearing column section arranged between the two bearing disk sections and oriented coaxially with the first bearing ring, wherein the sliding element has: at least one axial sliding ring for being arranged between radial surfaces of the two bearing elements assigned to each other; and two radial sliding rings for being arranged respectively between axial surfaces of the two bearing elements assigned to each other.

[0006] The axial-radial sliding bearing according to the invention is based on the following basic idea: to open up further application areas for axial-radial rolling bearings using polymer sliding elements and to simplify the design and thus the assembly of such bearings by miniaturization. It is emphasized here that the sliding elements used in conventional axial-radial sliding bearings (each having a substantially L-shaped cross section, which are arranged in rows relative to each other on the circumference, wherein two rows of such sliding elements are placed axially one after another between two bearing elements) can be replaced by at least one axial sliding ring (for being arranged between radial surfaces of two bearing elements that are assigned to each other) and two radial sliding rings (for being arranged respectively between axial surfaces of two bearing elements that are assigned to each other) without reducing the reliability of the bearing or its service life. Since, in addition to radial and axial loads, the axial-radial sliding bearing according to the invention can also reliably absorb the tilting moment loads of the corresponding bearing position despite the small size, the expenditure for manufacturing the bearing, the required installation space, and the expenditure for the design of the connection structure and the installation of the bearing are significantly reduced compared to conventional axial-radial sliding bearings.

[0007] In such an embodiment, the second bearing element has two bearing disks spaced apart from each other and at least one bearing column segment arranged between the two bearing circle segments and oriented coaxially with the first bearing ring. In this regard, the second bearing element is constructed as a second bearing ring which receives the first bearing ring completely in the axial direction and in sections in the radial direction.

[0008] The designation of the surface of the sliding bearing or its components according to the invention as an axial surface refers to the corresponding surface which is substantially perpendicular to the axial direction of the bearing or the axis of rotation of the bearing. In a corresponding manner, the bearing or one of its components is arranged substantially perpendicular to the radial direction of the bearing. In this way, the mantle surface of the cylinder can be referred to as a radial surface, to which the radius vector is perpendicular.

[0009] The term "axial sliding ring" refers to a sliding ring that has its maximum extension in the axial direction in a cylindrical coordinate system, which means that its largest sliding surface is a radial surface, in particular a cylindrical surface, to which the radius vector is perpendicular. In a similar manner, the term "radial sliding ring" refers to a sliding ring that has its maximum extension in the radial direction in a cylindrical coordinate system, which means that its largest sliding ring surface is an axial surface perpendicular to the axis of the bearing.

[0010] Further features and developments of the invention according to the invention are disclosed in the following general description, in the drawings, in the description of the drawings and in the dependent claims.

[0011] In order to completely cover the mutually adjoining surfaces of the first and second bearing elements by the sliding element, it can be provided that the axial height of the bearing column section of the second bearing unit is substantially equal to the sum of the axial heights of the two radial sliding rings and the axial length of the first bearing ring, and is also substantially equal to the axial height of the axial sliding ring. It can be provided that the two radial sliding rings in the installed position with their respective radially inner radial surfaces respectively bear against the associated sections of the radially outer radial surface of the axial sliding ring.

[0012] In order to simplify the assembly of the sliding bearing according to the invention and to reduce the outlay for the individual components of the bearing according to the invention, it can be provided that the axial sliding ring is designed in one piece and has a sleeve-like configuration which can be closed in the circumferential direction. It can be provided that the radial sliding ring is designed as a corresponding annular disk, so that in this embodiment the sliding function between the first and second bearing elements can be provided by three respectively integral sliding elements, wherein it can also be provided that the two annular disks are designed identically.

[0013] Depending on the embodiment, the two bearing disk sections of the second bearing element which are axially spaced apart from each other can be non-circular, in particular angular or elliptical, with respect to their base surface. It can also be provided that the two bearing disk sections of the second bearing element are configured as disk sections or disks, wherein, depending on the embodiment, the bearing column section arranged between them can be configured, for example, as a column sleeve or as a solid cylinder. In the last-mentioned embodiment, a particularly high stability of the axial-radial sliding bearing according to the invention is produced in order to receive and transmit the operating forces of the movable bearing part, which is usually the first bearing element, to the bearing part held in a fixed position, which is usually provided by the second bearing element of the axial-radial sliding bearing configured according to the invention.

[0014] It can be provided that the two bearing disk sections spaced axially apart from one another and the bearing column section arranged therebetween are each present in one piece and are connected to one another, in particular screwed, for forming the second bearing element. To simplify the construction of the second bearing element, it can also be provided that the bearing column section is formed in one piece with one of the two bearing disk sections or bearing disks, wherein the other of the two bearing disk sections is fastened to the bearing column section in the installed position, for example by means of a screw connection, which can be formed coaxially with the first bearing ring or coaxially with the first bearing element.

[0015] As already shown, the bearing column section can be designed as a column sleeve, but in another embodiment it can also be designed as a solid cylinder which can optionally have one or more passages, for example in order to realize one or more screw connections.

[0016] In one embodiment, one of the two bearing disk sections is manufactured integrally with a bearing column section, which is constructed as a solid cylinder. In order to configure the second bearing element, it can be practical to provide that the second bearing disk section is fastened to the first-mentioned part of the second bearing element by means of a screw connection, in particular by a coaxially extending screw connection, for example in the following way: a screw bolt extends through the first bearing disk section and the bearing column section or solid cylinder molded or fastened thereon into the second bearing disk section, and the second bearing disk section has a spiral drilled hole, in particular a spiral drilled hole oriented coaxially with the first bearing ring, and the screw bolt is screwed into the spiral drilled hole.

[0017] In order to fasten the second bearing element, for example, to a stationary component in the interior space of a vehicle, it can be practical to provide a plurality of through-holes extending parallel to the axis of the bearing, which are arranged, in particular, circumferentially and radially spaced apart relative to the axis of the first bearing ring, and which extend through two bearing disk sections and at least one bearing column section arranged between the two bearing disk sections and oriented coaxially therewith, for receiving corresponding fastening bolts.

[0018] The axial-radial sliding bearing according to the invention is particularly suitable for designing bearings with relatively small dimensions, such as when such a bearing is used in a vehicle, it can be used to pivotably fasten a component to an interior component of the vehicle. In particular, the radial dimension of the bearing can be <80 mm, in particular ≤60 mm, preferably ≤40 mm, which enables a large number of other application areas for the bearing. In a similar manner, based on the described structure of the bearing according to the invention, the bearing can be designed with an axial dimension of <20 mm, in particular ≤16 mm, preferably ≤12 mm.

[0019] Basically, it can be provided that the axial-radial sliding bearing according to the present invention is constructed so that the two bearing elements can be arranged arbitrarily rotatably relative to each other around the rotation axis, in particular, arranged over an angular range greater than a full circle. However, on the other hand, the following application of the axial-radial sliding bearing according to the present invention is also feasible, in which two components that can be coupled to each other by a bearing are limited in their relative movement relative to each other. For example, in one application, there may be a need for relative swinging over an angular range of, for example, 90 or 180° by means of a bearing. In a large number of applications, this limitation can be achieved by providing an external stop, which can be arranged, for example, on a component coupled to the bearing. However, in a particularly practical embodiment, it can also be provided that the bearing according to the present invention itself has a limiting device to limit the relative movement of the two bearing elements relative to each other. For example, a stop arranged on one of the two bearing elements can be provided, which acts together with two stops arranged on the other bearing element to limit the torsion of the two bearing units relative to each other around the rotation axis of the axial-radial sliding bearing.

[0020] In a practical embodiment, it can be provided that the limiting device has an arm section arranged on one of the two bearing elements and extending axially from the one bearing element, and the arm section is axially embedded in a longitudinal hole extending circumferentially on the other of the two bearing elements to limit the relative pivoting of the two bearing elements relative to each other to a predetermined angular range. In this embodiment, in this regard, the two end-face ends of the longitudinal hole form stops for the arm section extending into the longitudinal hole, and the arm section interacts with the two stops to limit the pivoting. It can be seen that in this embodiment, the axial extension of the longitudinal hole determines the predetermined angular range.

[0021] In certain embodiments, it is practical to facilitate the adjustment of one or more relative operating positions of the two bearing elements relative to each other. For this purpose, it is practical to provide that one or more latching positions are provided between the two bearing elements. In particular, it can be provided that at least one of the two bearing elements has a seat for a deflectable latching element that is received in the seat and is force-loaded, in particular by means of a spring, and that the other of the two bearing elements comprises at least one latching recess assigned to the latching element for receiving the deflectable latching element at least in sections for providing a releasable locking in a predetermined relative rotational position of the two bearing units relative to each other. It can also be provided that the other of the two bearing elements has a plurality of latching recesses spaced apart from each other in the circumferential direction for gradually receiving the latching element during the rotation of the two bearing units relative to each other, in order to provide a plurality of latching positions that differ in terms of the relative rotational position of the two bearing units relative to each other.

[0022] According to the present invention, in order to work together and be configured to complement each other, the locking element and the locking recess can be arranged on the boundary surfaces of the two bearing elements facing each other. In a practical embodiment, it can be provided that the locking element and at least one locking recess are arranged on the radial surfaces of the one bearing element and the other bearing element facing each other. It can be provided that the locking element arranged in the seat of the one bearing element is loaded with force in the radial direction and is arranged to be deflectable to provide the two bearing elements to be locked relative to each other in the radial direction when adjusting the predetermined relative rotational position of the two bearing elements relative to each other. However, it can also be provided that the locking element and at least one locking recess are arranged on the axial surfaces of the one bearing element and the other bearing element facing each other, and the locking element arranged in the seat of the bearing element is loaded with force in the axial direction and is deflectable.

[0023] The configuration of the bearing according to the invention (which provides the function of locking two bearing elements relative to each other) can be implemented so that a release torque for releasing the locking of the two bearing elements relative to each other can be generated by applying a predetermined torque to one of the bearing elements, while the other bearing element remains fixed in position, wherein the predetermined torque constitutes a torque threshold from which the locking can be released. For this purpose, the latching element and / or the latching recess can be configured with corresponding curved latching surfaces. Practically, for example, it can be provided that the latching element has a spherical or cylindrical latching surface at least in sections, which corresponds to at least one assigned latching recess in the latching position or latching position of the latching element, and the latching recess has a latching surface that is complementary to the latching recess. In this regard, the term "locking surface" refers to the contact surface of the latching element or the assigned latching recess. The desired releasability of the locking can be provided in a simple manner by the described curved configuration of the latching surface or the contact surface. By appropriately configuring the latching surfaces of the latching element and the latching recesses associated with the latching element, it can be provided that the release torque is set differently depending on the direction of rotation of the two bearing elements relative to one another, which can be practical in certain applications.

[0024] The axial-radial sliding bearing configured according to the invention is particularly suitable for use in the interior of a vehicle, in particular an aircraft, a land vehicle or a water vehicle. For example, in order to pivotally fasten a holding or display element to an interior component, the axial-radial sliding bearing according to the invention can be used by fastening the element to be pivoted to one of the two bearing elements of the bearing and fastening the interior component to the other bearing element of the axial-radial sliding bearing configured according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The invention is explained below by a description of an embodiment together with variants with reference to the accompanying drawings, in which it is shown that:

[0026] Figure 1 An axial-radial plain bearing designed according to the invention in a three-dimensional exploded illustration,

[0027] Figure 2 In the side view Figure 1 An exploded view of

[0028] Figure 3 exist Figure 2 Section through the assembled bearing in section plane III-III given in . DETAILED DESCRIPTION

[0029] exist Figure 1The axial-radial sliding bearing 1 according to the invention is shown in a three-dimensional exploded view, as it is designed, for example, for use in the interior space of a vehicle, in particular a land vehicle, an aircraft or a water vehicle, in order to achieve, for example, a pivotable fastening of a holding or workbench element on an interior space component of the vehicle.

[0030] The bearing 1 has a first bearing element in the form of a first bearing ring 2, which is arranged coaxially with the second bearing element and is received by the second bearing ring over its entire axial extension and over a section of its radial extension. In the illustrated embodiment, the second bearing element comprises two discs 4, 6 oriented coaxially with the first bearing ring 2, which are spaced axially apart by a column section 5 oriented coaxially. Here, the lower disc 4 and column section 5 in the drawing are integrally and integrally constructed, wherein the disc 6 arranged spaced apart from the disc 4 is screwed to the integrally manufactured components 4, 5. In the illustrated embodiment, the integrally manufactured disc 4 and column section 5 have a central bore 52, through which a coaxially extending fastening bolt 90 extends in the assembled state, which fastening bolt can be screwed into the associated coaxial threaded bore 61 of the disc 6 to configure the illustrated second bearing element, which comprises the sections 4, 5, 6.

[0031] In this regard, the second bearing element (4, 5, 6) is designed to be approximately U-shaped in a cross section including the longitudinal axis A of the sliding bearing 1. The two bearing elements 2, (4, 5, 6) can be made of the same or different metal materials such as aluminum or steel. However, it is also possible that at least one or both of the bearing elements are made of plastic material, in particular at least in sections.

[0032] In an embodiment not shown, it can also be provided that the second bearing element (4, 5, 6) can be configured by connecting, in particular screwing, three individual components, namely two disks 4, 6 and a column segment 5 manufactured separately from the disks. In this embodiment, for this purpose, as in an embodiment in which the second bearing element comprises two individual components, a single screw bolt 90 extending coaxially with the axis A of the bearing can also be used here, which screw bolt extends axially through the disks 4, 6 and the column segment 5 as given above and is screwed into the bearing at this time. Figure 1 In the threaded bore 61 of the upper middle disk.

[0033] exist Figure 1In the assembled state of the axial-radial sliding bearing configured according to the invention, the two bearing elements (that is, the first bearing ring 2 and the second bearing element provided by the segments or components 4, 5, 6) are arranged rotatably relative to each other around the rotation axis A. In order to minimize the friction between the components or surfaces that can move relative to each other, in the described embodiment, the sliding bearing 1 includes three individual sliding elements, which are arranged between the first and second bearing elements so that the bearing elements are decoupled axially and radially. The first sliding element is configured as a cylindrical sliding sleeve 7, which has a cylindrical inner cover surface 71 and a cylindrical outer cover surface 70. The inner diameter of the sliding sleeve 7 is matched to the diameter of the column segment 5, so that in the assembled state of the bearing, the column inner cover surface 71 of the sliding sleeve 7, which acts as a radial surface, is in contact with the column cover surface 50 of the column segment 5, which in turn constitutes a radial surface. In the same way, the outer diameter of the sliding sleeve 7 is matched to the inner diameter of the bore of the first bearing ring 2 so that in the assembled state of the bearing constructed according to the invention, the cylindrical outer cover surface 70 of the sliding sleeve 7 (in this regard, the cylindrical outer cover surface is constructed as a radial surface) rests on the radially inner cylindrical surface 21 of the first bearing ring 2, which defines the inner bore of the first bearing ring 2.

[0034] In order to decouple the axial surfaces of the first bearing ring 2 and the two disks 4 , 6 assigned to one another, two sliding rings 8 are provided which are spaced apart by the axial thickness of the ring 2 and are also referred to here as radial sliding rings because their sliding surfaces have a greater radial extension than an axial extension.

[0035] Now also refer to Figure 2 Explain the mutual contact of the axial surfaces of the bearing element and the sliding ring 8 that are assigned to each other, Figure 2 Shown in side view Figure 1 1 is an exploded view of an axial-radial sliding bearing according to the invention, with associated axial faces (that is to say faces which extend normally to the axial direction and thus to the axis of rotation A of the bearing). In the embodiment described, the diameter of the central bore of the sliding ring 8 is matched to the outer diameter of the sliding sleeve 7 in such a way that in the assembled state of the bearing, the corresponding sliding ring 8 rests with its cylindrical surface defining the central bore on the outer cover surface 70 of the sliding sleeve 7, which results in Figure 3 This can be seen in the cross-sectional views explained below.

[0036] The respective sliding ring 8 has oppositely disposed flat sliding surfaces 80, 81, which are referred to here as axial surfaces, wherein, in the assembled state of the bearing, the axially outer axial surface 80 bears against the associated axial surface 60 of the disk 6 or the axially inner axial surface 40 of the disk 4. In the same way, the respective axially inner axial surface 81 bears against the associated axial surface 20a or 20b of the first bearing ring 2, in order to decouple the two bearing elements in the axial direction in the manner described.

[0037] Typically, the sliding element can be manufactured from a polymer material that can be used for tribological purposes, in particular by injection molding. In contrast, the first bearing element and the second bearing element are decoupled by a sliding sleeve 7 arranged radially between the column section 5 and the first bearing ring 2. In one embodiment, at least one of the sliding rings can also include a sandwich structure in the axial direction in the form of a plurality of annular disks arranged one above the other, wherein the axial extension of the sandwich structure is given by the sum of the axial extensions of the annular disks arranged one above the other.

[0038] As explained, Figure 1 The axial-radial sliding bearing according to the invention of 2 can be used for relative rotation of two components, for example in the interior space of a vehicle. Here, the second bearing element having the sections 4, 5, 6 has a fastening device for fastening to the first component, and the second bearing element 2 has a fastening device for fastening to the second component of the vehicle. In the described embodiment, for this purpose, a channel bore 62 can be provided on the second bearing element (4, 5, 6), which extends not only through the two disks 4, 6 but also through the column section 5 and can be used, for example, to fasten the second bearing element (4, 5, 6) to a fixed or stationary section or component, for example, by means of a screw connection, in which a corresponding screw bolt extends through the associated channel bore and is screwed to the second component of the vehicle. In a similar manner, the first bearing ring 2 can have a plurality of circumferentially spaced fastening bores 22 radially outside the sliding ring 8, through which another component (here, a component movable relative to the second bearing element) can be connected by screwing to the first bearing element or the first bearing ring.

[0039] Figure 3 The cross-sectional view shows the assembled Figure 1 , 2 according to the invention, an axial-radial sliding bearing, wherein the section plane contains the axis A of the bearing and is Figure 2In particular, the first component (4, 15) of the second bearing element (4, 5, 6) is of one-piece design in the described embodiment, which is connected to the disk 6 via a threaded connection extending coaxially with the axis of rotation of the bearing A to provide the second bearing element, wherein the second bearing element is U-shaped in cross section for completely axially receiving the first bearing ring 2 and partially radially receiving the first bearing ring 2.

[0040] In the embodiment described, the sliding sleeve 7 extends axially over the entire axial receiving portion of the second bearing element, that is, it corresponds to the sum of the axial extensions of the two sliding rings 8 and the first bearing ring 5, that is, it is equal to the axial height of the sliding sleeve 7. In an embodiment not shown, it can also be provided that the inner diameter of the sliding ring 8 is matched to (that is, is equal to) the outer diameter of the column segment 5, so that the sliding ring rests with its inner radial end face on the column cover surface 50 of the column segment 5, and the axial extension of the sliding sleeve 7 is reduced by the doubled axial extension of the sliding ring 8 relative to the axial extension of the receiving portion of the second bearing element (4, 5, 6) (the axial extension is determined by the axial spacing of the two disks 4, 5).

[0041] In an embodiment not shown, the axial-radial sliding bearing configured according to the invention can have a limiting device to limit the relative movement of the two bearing elements 2 (4, 5, 6) relative to each other. For this purpose, for example, an arm molded on the radial section of the disk 4, 6 and extending in the axial direction can be provided, which extends into a through-hole arranged on the first bearing ring 5 and extending in the circumferential direction, in the form of an elongated hole extending in the circumferential direction (that is, on a circular line section), thereby limiting the relative movement of the two bearing elements 2 (4, 5, 6) relative to each other. In order to increase the operating strength, the axial arm can be fastened to the two disks in particular and extend axially between them.

[0042] Reference numerals list

[0043] 1 Axial-radial plain bearings, bearings

[0044] 2 First bearing ring, first bearing element

[0045] 4 Bearing disk segments, disc

[0046] 5 Column segment, bearing column segment

[0047] 6 Bearing disk segment, disk

[0048] 7 Sliding sleeve, axial sliding ring

[0049] 8 Sliding ring, radial sliding ring

[0050] 20a, b Axial surface of the first bearing ring

[0051] 21 radial surface, cylindrical surface

[0052] 22 Fastening drilling

[0053] 40 Axial surface of the disk

[0054] 50 Radial surface, column cover surface

[0055] 51 Axial surface

[0056] 52 Center drilling

[0057] 60 Axial surface

[0058] 61 Threaded drilling

[0059] 62 Fastening drilling

[0060] 70 Radial surface, outer surface of column

[0061] 71 Radial surface, inner column cover surface

[0062] 80 Axial surface

[0063] 81 Axial surface

[0064] 90 Fastening bolt

[0065] A Rotation axis

Claims

1. An axial-radial sliding bearing (1), comprising: - a first bearing element in the form of a first bearing ring (2), and a second bearing element (4, 5, 6), wherein the bearing elements are arranged rotatably relative to one another about a bearing axis (A), and the second bearing element (4, 5, 6) has a substantially U-shaped cross section in order to accommodate the first bearing ring (2) at least in sections, and - a sliding element (7, 8) made of a polymer material, which is arranged between the first and second bearing elements in order to decouple the bearing elements axially and radially, characterized in that The second bearing element (4, 5, 6) has two bearing disk sections (4, 6) spaced apart from each other and at least one bearing column section (5) arranged between the two bearing disk sections and oriented coaxially with the first bearing ring (2), wherein the sliding element (7, 8) has: at least one axial sliding ring (7) for being arranged between radial surfaces (50, 21) of the two bearing elements assigned to each other; and two radial sliding rings (8) for being arranged between axial surfaces (60, 20a, 40, 20b) of the two bearing elements assigned to each other.

2. The axial-radial sliding bearing (1) according to claim 1, characterized in that The axial height of the bearing column section (5) is substantially equal to the sum of the axial heights of the two radial sliding rings (8) and the axial height of the first bearing ring (2), and is also substantially equal to the axial height of the axial sliding ring (7).

3. The axial-radial sliding bearing (1) according to claim 1 or 2, characterized in that: The bearing column section (5) is formed integrally with one of the two bearing disk sections (4, 6), to which the other of the two bearing disk sections (6, 4) is fastened.

4. Axial-radial sliding bearing (1) according to claim 1, 2 or 3, characterized in that The bearing column section (5) is designed as a solid cylinder, and at least one of the two bearing disk sections (4, 6) is fastened to the bearing column section (5) by means of a screw connection, in particular a screw connection extending coaxially with the first bearing element.

5. The axial-radial sliding bearing (1) according to any one of claims 1 to 4, characterized in that A plurality of axial apertures (62) arranged radially spaced apart relative to the axis of the bearing ring (2) are formed by the two bearing disk sections (4, 6) and the at least one bearing column section (5) arranged between the two bearing disk sections and oriented centrally and coaxially relative to them.

6. The axial-radial sliding bearing (1) according to any one of claims 1 to 5, characterized in that: The radial dimension of the bearing (1) is <80 mm, in particular ≤60 mm, preferably ≤40 mm, and the axial dimension of the bearing is <20 mm, in particular ≤16 mm, preferably ≤12 mm.

7. The axial-radial sliding bearing (1) according to any one of claims 1 to 6, characterized in that The bearing (1) has a limiting device for limiting the relative movement of the two bearing elements relative to each other.

8. The axial-radial sliding bearing (1) according to claim 7, characterized in that The limiting device comprises at least one first stop member arranged on the first bearing element (2) and at least one second stop member arranged on the second bearing element (4, 5, 6), wherein the two stop members assigned to each other act together to limit the relative rotation of the two bearing elements relative to each other.

9. The axial-radial sliding bearing (1) according to any one of claims 7 or 8, characterized in that The limiting device has an arm section arranged on one of the two bearing elements (2; 4, 5, 6) and extending axially from the one bearing element, and the arm section is axially embedded in a longitudinal hole extending circumferentially on the other of the two bearing elements to limit the relative swinging of the two bearing elements relative to each other within a predetermined angular range.

10. The axial-radial sliding bearing (1) according to any one of claims 1 to 9, characterized in that At least one of the two bearing elements (2) has a seat for a locking element which is received in the seat and is force-loaded and deflectable, in particular by means of a spring, and the other of the two bearing rings (4, 5, 6) comprises at least one locking recess assigned to the locking element for at least partially receiving the deflectable locking element in order to provide a releasable locking in a predetermined relative rotational position of the two bearing units relative to each other.

11. Use of an axial-radial sliding bearing (1) according to any one of claims 1 to 10 in the interior space of a vehicle, in particular an aircraft, a land vehicle or a water vehicle.

12. Use of the axial-radial sliding bearing (1) according to claim 11, characterized in that The bearing arrangement is used to pivotably fasten a retaining or workbench element to an inner space component of the travel device, in which the retaining or workbench element is fastened to one of two bearing elements (2) and the inner space component is fastened to the other of the two bearing elements (4, 5, 6).

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