WO2017063807A1

WO2017063807A1 - Sliding bearing

Info

Publication number: WO2017063807A1
Application number: PCT/EP2016/071624
Authority: WO
Inventors: Martin MÜLLER-BRODMANN; Stefan HENSS
Original assignee: Federal-Mogul Deva Gmbh
Priority date: 2015-10-15
Filing date: 2016-09-14
Publication date: 2017-04-20
Also published as: DE102015117512B4; DE102015117512A1

Abstract

The invention relates to a sliding bearing (2) comprising a bearing element which is made of an electrically insulating material and into which at least one insertion element (12) made of an electroconductive material is introduced so that an electroconductive connection is formed between at least one area of a sliding surface (6) of the bearing element and at least one area of a support surface (10) of the bearing element.

Description

bearings

The invention relates to plain bearings and in particular plain bearings made of insulating material with electrically conductive insert elements.

PRIOR ART European Patent Application EP 1900950 A2 already discloses a plastic sliding bearing which acts as an electrical insulator by virtue of its construction. The present invention described below can be used, for example, in bearings of this type. Summary

According to one embodiment of the present invention, a guard bearing is provided which comprises a bearing element of an electrically insulating material, wherein in the bearing element at least one insert element made of an electrically conductive material is introduced, so that an electrically conductive connection of at least a region of a sliding surface of the bearing element and at least part of a mounting surface of the bearing element is formed.

In a basic version, the bearing comprises only one element of the bearing material itself, which has special sliding properties. The bearing element made of an electrically insulating material would insulate a bearing housing and a shaft of electrically conductive materials from each other. By the insert element made of an electrically conductive material, an electrical connection between an electrically conductive material can be generated. Conventionally, a separate sliding contact or a bearing made of metal would be used here. By inserting an electrically conductive material can be omitted here the need for a separate sliding contact. Another advantage is that in a combination of electrically conductive and electrically insulating plain bearings, a power transmission between stored and unavailable elements is possible

In an exemplary embodiment of the present invention, the bearing element is designed sleeve-shaped. A sliding surface is preferably designed as an inner surface of the bearing element and the attachment surface is preferably an outer surface of the bearing element. Thus, a classic sliding bearing for supporting an axle or a shaft is described. In a basic form, the sliding bearing comprises only the material which also forms the sliding surface. In a further exemplary embodiment of the present invention, the sliding surface of the bearing element is provided with a sliding layer. In this case, the sliding layer comprises a material which is likewise non-conductive. This embodiment can likewise be understood to mean that the sliding bearing comprises a layer which does not form a sliding layer but stably supports or supports the sliding layer

In a further exemplary embodiment of the sliding bearing according to the invention, the sliding layer comprises an electrically conductive material. This embodiment is directed to the sliding layer comprising a separate element that is conductive. This embodiment is not directed to uniformly forming the entire conductive layer from a conductive substance. This embodiment is directed to a sliding layer into which electrically conductive materials have been introduced to provide a non-conductive sliding layer such as PTFE with a conductivity.

In particular, it is contemplated to achieve, in addition to electrical conductivity, thermal conductivity, for example, to increase elevated temperatures, e.g. may occur due to sliding friction, to be able to dissipate through the bearing to a possibly cooled bearing bracket.

In another exemplary embodiment of the sliding bearing according to the invention, the bearing element is provided with at least one recess in which the at least one insert element is received. This embodiment relates to a slide bearing into which openings have been introduced or incorporated, the respective inlays or insert elements of an electrically conductive Pick up material. It is envisaged to incorporate the inserts directly in the production of the plain bearing or to use in openings that were released during the manufacture of the sliding bearing or drilled or milled or cut. In an additional exemplary embodiment of the sliding bearing according to the invention, the bearing element is provided with a plurality of circular recesses. Circular recesses or openings can be produced particularly easily by drilling.

In a further exemplary embodiment of the present invention, the recesses are arranged uniformly on a circumferential circle beyond the circumference of the bearing element. The bores in this embodiment extend radially and on a circular line that is perpendicular to a rotational symmetry axis of the sleeve-shaped bearing.

In another exemplary embodiment of the slide bearing according to the invention, the at least one insert element is dimensioned so that it protrudes inserted beyond the sliding surface of the bearing element. The at least one insert element can likewise be dimensioned so that it protrudes beyond the attachment surface of the bearing element. In another exemplary embodiment of the slide bearing according to the invention, the at least one insert element is dimensioned so that it projects beyond the sliding surface of the bearing element. As a result, the at least one insert element can permanently be in contact with the shaft or axle and the holder of the slide bearing and ensure electrical contact. In another exemplary embodiment of the slide bearing according to the invention, the at least one insert element is designed so that it is elastically deformable and can press in the operation of the sliding bearing against the sliding surface or the mounted element and the holder of the bearing to an electrical contact between them To ensure elements.

In an additional exemplary embodiment of the sliding bearing according to the invention, the at least one insert element is made of graphite. Graphite has the advantage that it represents a fairly good electrical conductor and at the same time serves as a solid lubricant. Graphite can be assumed to be a possibly resulting abrading function of the bearing will not adversely affect.

In another exemplary embodiment of the present invention, the sliding layer is made of fiber composite material. In this case, the present invention relates in particular to plain bearings, as disclosed in the aforementioned European Patent Application EP 1900950 A2. In this case, solid lubricant-filled fiber-reinforced Epoxidharzgleitschichten are preferred. In preferred embodiments, the solid lubricant filled fiber reinforced Epoxidharzgleitschichten by a supported by glass fiber reinforced base course

In another exemplary embodiment of the present invention, the electrically insulating material comprises a fiber composite material or is made from a fiber composite material. In a further exemplary embodiment of the present invention, a carrier layer that mechanically stabilizes the sliding layer is made of a fiber composite material. The carrier layer of a fiber composite material forms the mounting surface with which the bearing can be mounted or mounted in a bearing carrier. Thus, in one embodiment, the present invention relates to a plastic plain bearing having a fiber composite carrier and a fiber composite sliding layer, which allows an electrical connection between the bearing carrier and stored elements

In an additional exemplary embodiment of the present invention, the insert element is wrapped in the fiber composite material. The insert element may here be embodied as a wire which is co-wrapped with the fibers of the fiber composite material during its manufacture, or may be designed as a post which is used during winding of the fiber composite material Fiber composite material is wrapped laterally. In order to avoid that a hole must be drilled in the sliding layer made of fiber composite material, holes can also be released during their production. It is also possible to wrap the electrically conductive insert members directly in making the fiber composite. Thus, diamond-shaped inlay elements in the form of a post can be inserted and wrapped in cross-section into a fiber composite workpiece when the filaments of the fiber composite material are wound in a crossed manner, wherein the insert elements each lie between the fibers. In a cross-winding diamond-shaped insert elements can be relatively easily wrapped in cross-section. In the case of a crossed winding, an odd number of insert elements is preferred. If an odd number of insert elements are used, which are respectively bypassed alternately left and right, the fiber bundles are automatically superimposed again after two circulations. This can be combined with two other fiber bundles, which extend in the circumferential direction or parallel to the insertion elements. From such a combination, one can provide a fiber wrap having substantially uniform strength throughout. In another additional exemplary embodiment of the present invention, the lay-in element comprises at least one wire of conductive material embedded in the fiber composite. This describes another way Insert insert elements in the plastic plain bearing. Here, a very leifähiges material such as copper or a wire of bearing bronze or a carbon fiber bundle is inserted into the fiber composite material. Care should be taken that the conductive wire is also in direct contact with the sliding surface to allow electrical contact with the mounted element. Here, the wire should have a slightly increased strength compared to the remaining materials of the plain bearing in order to be able to maintain a good electrical connection to the mounted element even when worn. Preferably, the wire is first wrapped in the slip layer, with a remainder of the wire being led out. In a second step, this wire can also be incorporated into a fiber composite material of the support layer, whereby it must likewise be ensured here that there is contact to the outside. The wire can either be led outside the bearing to be provided directly with an associated contact , Or it can be led out to the outside of the support layer to be in direct electrical contact with a bearing carrier or bearing housing.

In a further exemplary embodiment of the present invention, the conductive material wire is wrapped in both the electrically insulating material and the composite fiber lubricating layer. A single continuous wire may be used which may be used in both elements, i. the carrier layer and the sliding layer is inserted to produce a total of a single continuous connection between the sliding surface and the support surface. In comparison to a solution with relatively large diameter and large thickness posts, a material with a higher conductivity than graphite, such as copper or silver, should still be used to provide sufficient conductivity even with smaller cross-sections and longer conductor length to be able to. In addition to or instead of graphite, molybdenum disulfite can also be used in the post-shaped inlay elements. In the graphite and / or molybdenum disulfide and finely divided soft metals z. As aluminum, copper, lead, silver, ceramic particles or plastics such. As PTFE (Teflon) can be used in the post-shaped inserts.

In a further exemplary embodiment of the present invention, the at least one inlet element made of an electrically conductive material is wrapped in the electrically insulating material or the sliding layer. Here, the insert element of an electrically conductive material extends only in the carrier layer or the sliding layer. This embodiment is directed to the fact that only the carrier layer or the sliding layer is provided with a wire which gives the respective layer an electrical conductivity while the other layer is in each case not electrically conductive electrical connection between the bearing housing and the mounted element is in this case achieved by a second insert element, which extends only through the support layer or the sliding layer and completes the electrical connection Here, for example, a graphite post in the carrier layer or the sliding layer can be used with the in the other element inserted wire is in communication and so completes the electrical connection. This embodiment is directed to a mixed solution in which two different insert members are used to achieve either a continuous slip layer or an uninterrupted backing layer. Here, depending on the application, the appropriate insert element for the bearing housing and / or for the mounted element can be selected. It can also be achieved electrical connections when the bearing housing and / or the stored element are not compatible with post or wire elements.

In another exemplary embodiment of the present invention, the sliding bearing is a sleeve-shaped sliding bearing having 3 to 24, preferably 4 to 18, more preferably 6 to 12, and still more preferably 8 to 10 insert elements of an electrically conductive material. The inserts are on one The inlaid elements are preferably arranged equidistantly and are more preferably located on a circle in the middle of the axial length of the sliding layer. This arrangement is selected because the electrically conductive inlays have a lower sliding or storage capacity than the material of the sliding layer an area with an expected lowest stress arranged

In yet another exemplary embodiment of the present invention, the sliding layer is electrically conductive and the inlays are located in openings that extend radially through the bearing element to the sliding layer. However, the openings do not extend to a sliding surface of the sliding layer. In this embodiment, the conductivity of the sliding layer has been achieved by an inserted conductive wire. The posts merely provide the connection between the conductive elements in the sliding layer to the bearing housing. It is particularly easy here to drill or mill the holes from the outside into the carrier layer and so far into the sliding layer in order to produce an electrical contact.

In yet another exemplary embodiment of the present invention, the sliding layer is not electrically conductive and the post-shaped insertion elements are located in openings that extend radially through the sliding layer. However, the openings and the post-shaped insertion elements do not extend to a Carrying surface of the carrier layer. This version is primarily intended for posts that extend only in the tread area. Preferably, such posts are made of graphite. The slide bearings, when clamped in a bearing housing, can not destroy the posts of a material such as graphite, as they are protected by the backing layer.

In yet another exemplary embodiment of the present invention, the plurality of circular recesses are parallel to each other. This allows the use of the present invention in small diameter bearings. Here, the posts can also be used parallel to each other, which considerably reduces the manufacturing effort, since the bearing does not have to be constantly re-clamped when drilling the holes or openings.

In yet another exemplary embodiment of the present invention, the sliding layer has a thickness between 0.5mm and 2mm. A wall thickness of the carrier layer is preferably between 4 and 10 mm. The inserts preferably have a diameter between 4mm and 12mm.

In yet another additional exemplary embodiment of the present invention, the inserts on the support surface on a supernatant of about 0.1 mm and / or the inserts have on the sliding surface on a protrusion of about 0.3 mm. Thereby, a secure electrical contact between the mounted element and the bearing housing can be ensured. The invention is illustrated below with reference to exemplary embodiments, which schematically represent a shaft bearing with internal sliding surface.

Figures 1 and 2 illustrate a basic embodiment of a conductive plastic bearing according to the invention.

Figures 3 and 4 show a further developed embodiment of a conductive plastic bearing according to the invention with sliding layer and carrier layer

FIGS. 5 to 8 show a further developed embodiment of a conductive plastic bearing according to the invention with sliding layer and carrier layer with different conductive inlaid elements. Figure 9 shows an embodiment of a plain bearing made of a fiber composite material, wherein the fibers are placed around the inserts around.

Figure 10 shows an embodiment of a sliding bearing made of a fiber composite material, in which the inserts comprise a wire which is inserted in both the sliding layer and in the carrier layer

FIG. 11 shows an embodiment of a sliding bearing in which parallel openings or parallel inlay elements are used.

Both in the figures and in the description, like reference numerals are used to refer to the same or similar elements.

Detailed description of embodiments

Fig. 1 shows a simple sliding bearing 2 according to an embodiment of the invention. The bearing is constructed as a plain bearing 2 of one piece of a sliding layer 4 with a sliding surface 6 and a mounting or bearing surface 10. The surface of the inner surface serves as a sliding surface 6. The bearing 5 is made of an electrically insulating material Here and below are only Examples of a cylindrical or sleeve-shaped radial bearing used, it should be understood that the above designs can be applied to other types of bearings such as thrust bearings, tapered bearings, etc.

In this example, recesses are introduced at regular intervals over the circumference of the bearing element or the sliding bearing 2. The recesses are here in the form of cylindrical through-holes from the outer surface or support surface 8 to the inner surface, i. the sliding surface 6, formed in these recesses, an electrically conductive material in the form of post-shaped insert elements 12 is then introduced. The inserts 12 may be integrally formed and made to fit the recesses. Preferably, the insert element 12 is formed so long that it projects beyond the insertion of the inner surface or sliding surface 6 and / or the outer surface or support surface 10 of the sliding bearing 2 addition

FIG. 2 shows the bearing in the region of the insert elements in cross section

The material of the bearing element or the sliding layer 4 may initially be any insulating material, such as a ceramic material or a Plastic material. Preferred curable materials are polymers and in particular fiber composites in which reinforcing fibers are embedded in a polymeric material. As fiber material, for example, glass fibers come into question. As a possible material for the electrically conductive insert elements 12 graphite offers. Thus, both a conductive connection between the inside and outside of the bearing is achieved and at the same time a lubricating material introduced into the bearing, which can improve the sliding properties of the sliding bearing 2. Likewise, however, other conductive solid lubricants are conceivable. Alternatively, a conductive material with lower lubricating properties can also be selected. It is also conceivable to combine several materials with each other, so that, for example, a part of the insert elements 14 is made of graphite and another part of other materials.

In the example of FIG. 1, a plurality of recesses and inlays are shown. Alternatively, however, it is also possible to introduce only a single conductive connection with a recess or to increase or reduce the number of inlays.

The position of the inserts 14 is not fixed While in the example shown a regular arrangement is shown on a single circumferential circle, also recesses and corresponding inserts on several circumferential circles, evenly distributed over the peripheral surface or irregularly distributed, could be introduced.

By individual inserts 14 also very special requirements can be met, for example, bearing elements that are electrically conductive only in a particular area. Thus, the conductive inserts could be limited to one half or any other portion of the cylinder circumference. All of these variations can also be applied to the following embodiments.

The size of the insert elements depends on the desired conductivity, the available space and the material properties of the material of the insert elements.

FIG. 2 shows a section through the bearing perpendicular to an axis of a shaft 20 which is used as a mounted element. The section runs through the axial center of the bearing. The slide bearing comprises only one sliding layer 4, which has holes in which radial insertion elements 14 are introduced. Outside, the bearing is held in a bearing housing 18, such as a bearing plate. Here, the bearing comprises only a sleeve of one lubricious material.

FIG. 3 shows a further embodiment of the invention, FIG. 4 again showing the bearing in cross section in the region of the insert elements. While the recesses and inlays essentially correspond to the embodiment shown in FIGS. 1 and 2, the bearing element 2 here is made up of two layers. The inner layer forms a sliding layer 4 and the outer layer forms the base layer 8, which provides the bearing with a fixed mounting or support surface 10. The support surface 10 is taken in Figure 4 in a bearing housing 18, such as a bearing plate. In this way, the materials of the warehouse can be optimally adapted to their tasks. Preferably, a support layer 8 with high strength and resistance is located on the outside, while a sliding layer 4 is applied on the inside of a sliding surface 6 with corresponding tribological properties. Again, one or both layers can be constructed from a fiber composite or generally a polymer. In addition to fibers 4 solid lubricants may be included in particular in the sliding layer to achieve a self-lubricating bearing. The relative size ratios of the drawing are intended to be exemplary only. The sliding layer 4 may be formed substantially thinner than the support layer. Recesses and conductive insert elements 12 are likewise shown in this two-layered embodiment, wherein the recesses in turn lead continuously from the outer or support surface 10 to the inner or sliding surface 6 of the bearing element 2. As in the first example, the inserts could be graphite or other electrically conductive material.

Figure 5 and Figure 6 show another exemplary embodiment with a two-layer bearing element The structure of the bearing element may be as in the example of Figure 3, for example with two different fiber composites, ie with an inner sliding layer 4 and outer support layer 8. However, here are the recesses not continuously performed to the inner surface, but only through the support layer 8 through to the sliding layer 4 or in the sliding layer 4 inside. The openings end here in any case below the sliding surface. 6

In order to also produce a conductive connection between the inner and outer surface of the bearing element, so in this case, the inner sliding layer 4 of the bearing element should also be electrically conductive. This could be done, for example, by using a conductive material for the sliding layer or by introducing conductive fibers 16 or wires 16 are achieved in a fiber material. Here only the conductive wires or the wire-shaped insertion elements 16 are shown, which run in the sliding layer 4. In this way, a structure is possible in which a conductivity of the entire inner surface, but only to desired areas on the outer surface is achieved. For example, again recesses could be present only in a limited sector of the outer peripheral surface. The remaining areas of the outer surface of the bearing element then remain electrically insulated by the insulating material of the support layer. FIG. 7 and FIG. 8 show a further exemplary embodiment with a two-layer bearing element. The structure of the bearing is essentially the reverse of the construction of the bearing of FIGS. 5 and 6. The construction of the bearing element may be as in the example of FIG However, the recesses are not continuous to the outer or support surface 10 executed here, but only through the sliding layer 4 through to the carrier layer 8 or in the carrier layer 8 inside.

In order likewise to produce a conductive connection between the sliding surface 6 and the carrier surface 10 of the bearing element, in this case the carrier layer 8 of the bearing element should likewise be electrically conductive. This could be achieved, for example, by using a conductive material for the carrier layer 8 or by introducing conductive fibers 16 or wires 16 into a fiber material. Here, only the conductive wires or the wire-shaped insertion elements 16 are shown, which run in the carrier layer 8. The fibers of the fiber composite material were not shown for clarity in Figures 1-8 and 10 and 11. In this way, a structure is possible in which a conductivity of the entire outer or support surface 10, but only in desired areas on the sliding surface 6, is achieved. For example, again recesses could be present only in a limited sector of the inner circumferential surface. The remaining areas of the inner or sliding surface 6 of the bearing element then remain electrically insulated by the insulating material of the sliding layer 4

Figure 9 shows an embodiment of a sliding bearing made of a fiber composite material, in which the fibers are placed around the inserts around. In FIG. 9 diamond-shaped insert elements 14 are used. These diamond-shaped inlay elements are enclosed by the fibers of a fiber composite material. In a cross-winding or crossed winding may arise between the fibers diamond-shaped areas in which diamond-shaped inlay elements 14 can be accommodated. It is also envisaged to insert further fibers in the circumferential direction, which are not shown here, to compensate for a superposition of the fibers in the crossing regions. The optionally parallel circumferentially extending fibers have not been shown so as not to obscure the figure. Otherwise, the embodiment of Figure 9 corresponds to the sliding bearing, which is shown in Figures 3 and 4

FIG. 10 shows an embodiment of a two-layer sliding bearing. The structure of the bearing element comprises two different fiber composite materials with an inner sliding layer 4 and a sweeter supporting layer 8.

In order likewise to produce a conductive connection between the sliding surface 6 and the carrier surface 10 of the bearing element, both the inner sliding layer 4 of the bearing element and the carrier layer 8 should be electrically conductive here. This is achieved by using the wire-shaped inlay elements 16 which run both in the overlay layer 4 and in the carrier layer 8. Ideally, the wire-shaped insertion elements 16 extend without interruption above a boundary line between the sliding and carrier layer. In this way, a construction is made possible in which a conductivity of the entire inner surface and the entire support surface is achieved. The areas of the slide or support surface where no wires remain on the surface are then electrically isolated by the insulating material of the slip or carrier layer

Figure 1 1 shows an embodiment of a sliding bearing in which parallel openings or parallel insert elements are used. The embodiment of Figure 11 corresponds substantially to the embodiment of Figures 3 and 4. In contrast to Figures 3 and 4 parallel openings are used here for accommodating the inserts. This embodiment can be made faster because it is not necessary for the drilling of the openings is to turn the bearing. It is also possible to drill all orifices simultaneously at a single drilling station. In addition, the use of obliquely cut inlay elements makes it possible to minimize the waste of the material.

While graphite is also suitable here as the material for the insert elements, this time the lubricating properties are less relevant, so that other conductive materials may also be preferred.

It is also contemplated differently shaped inlay elements, such as strip-shaped Einlegelemente to use.

It is also intended to choose other locations for the deposits or to limit them to only one half or a particular, very limited area.

The present invention is also applicable to other bearing elements, such as thrust ball bearing ball bearing, collar federal plain bearing, only ring disc, sliding plates and the like, applicable and should not be limited to the illustrated embodiments of Radallagem.

In principle, all materials which have an electrical conductivity come into consideration for the plugs.

Claims

claims

1. sliding bearing (2), comprising:

a bearing element made of an electrically insulating material,

wherein in the bearing element at least one insert element (12, 14, 16) is introduced from an electrically conductive material, so that an electrically conductive connection between at least one region of a sliding surface (6) of the bearing element and at least a portion of a support surface (10) of the bearing element is formed.

2. plain bearing (2) according to claim 1, wherein the bearing element is sleeve-shaped, wherein the sliding surface (6) preferably forms an inner surface of the bearing element and wherein the mounting surface preferably forms an outer surface of the bearing element

3. plain bearing (2) according to claim 2, wherein the sliding surface (6) of the bearing element with a sliding layer (4) is provided

4. sliding bearing (2) according to one of the preceding claims, wherein the sliding layer (4) comprises an electrically conductive material

Slide bearing (2) according to one of the preceding claims, wherein the bearing element is provided with at least one recess in which the at least one insert element (12, 14, 16) is received.

6. plain bearing (2) according to claim 5, wherein the bearing element is provided with a plurality of circular recesses.

7. Plain bearing (2) according to claim 6, wherein the recesses are arranged over the circumference of the bearing element of time evenly on a circumferential circle.

8. plain bearing (2) according to one of claims S to 7, wherein the at least one insert element (12, 14, 16) is dimensioned so that it protrudes over the sliding surface (6) of the bearing element protrudes

9. plain bearing (2) according to one of the preceding claims, wherein the insert element (12, 14, 16) is formed of graphite

10. plain bearing (2) according to one of the preceding claims, wherein the bearing element is at least partially made of a fiber composite material.

11. plain bearing (2) according to claim 10, wherein the bearing element made of an electrically insulating material and / or the sliding layer (4) are made of fiber composite material.

12. plain bearing (2) according to claim 10 or 1 1, wherein the insert element (12, 14, 16) is wrapped in the fiber composite material

13. plain bearing (2) according to claim 10, 11 or 12, wherein the insert element (12,

14. Sliding bearing (2) according to claim 10, 11, 12 or 13, wherein the wire of conductive material in both the electrically insulating material and in the Sliding layer (4) is wrapped in fiber composite material.

15. plain bearing (2) according to any one of claims 10 to 14, wherein the at least one insert element (12, 14, 16) made of an electrically conductive material in the electrically insulating material and / or the sliding layer (4) is wrapped.

Sliding bearing (2) according to one of the preceding claims, wherein the sliding bearing is a sleeve-shaped plain bearing, the 3 to 24, preferably 4 to 18, more preferably 6 to 12, and still more preferably 8 to 10 insert elements (12, 14, 16) an electrically conductive material, which are arranged on a circle.

Sliding bearing (2) according to one of the preceding claims, wherein the sliding layer (4) is electrically conductive and wherein the insert elements are in openings which extend in the radial direction through the bearing element to the sliding layer (4).

18. Sliding bearing (2) according to any one of the preceding claims, wherein the sliding layer (4) is not electrically conductive and wherein the inlays are in openings extending in the radial direction through the sliding layer (4).

19. plain bearing (2) according to any one of the preceding claims, wherein the plurality of circular recesses parallel to each other. Sliding bearing (2) according to one of the preceding claims, wherein the thickness of the sliding layer (4) is between 0.5 mm and 2 mm and / or wherein the wall thickness of a carrier layer (8) is between 4 mm and 10 mm and / or wherein the insert elements (12, 14) have a diameter between 4mm and 12mm.

Sliding bearing (2) according to one of the preceding claims, wherein the insert elements (12, 14) on the support surface (10) have a projection of about 0.1 mm and / or wherein the insert elements (12, 14) on the sliding surface (6). have a supernatant of about 0.3mm.