DE102015225823A1 - Sliding bearing bush and method for producing the plain bearing bush - Google Patents

Abstract

A plain bearing bush (1) with a base layer (2) of a base layer material and with a sliding layer (8) of a sliding layer material is described, wherein at least one elastomer layer (4) is arranged between the base layer (2) and the sliding layer (8). A method for producing such a slide bearing bushing (1) is also described.

Description

The invention relates to a plain bearing bushing according to the preamble of claim 1 and a method for producing such a plain bearing bushing according to claim 16.

The use of fiber composites for plain bearings, especially for wound plastic bearings based on epoxy resins, z. B. from the EP 1 900 950 A2 known. Such slide bearings, which are produced in particular as plain bearing bushes, consist of a single-layer sliding layer material or of a bearing material constructed from two layers, which has a base layer and a sliding layer.

The support layer is typically characterized by glass fibers or carbon fiber reinforced epoxy resin matrix, which has a very high load capacity. The sliding layer is usually composed of special non-abrasive or less abrasive synthetic fibers or threads as reinforcing elements, solid lubricants and also an epoxy resin matrix.

The composition is adjusted so that the required tribological properties set, depending on the material and nature of the counter-rotor and the environmental conditions, such. B. wet or dry running can vary. Such plain bearing bushes consisting of a sliding and a supporting layer are usually statically loadable up to 230 MPa and dynamic loading up to 140 MPa.

The plain bearing bushes take on a shaft, which can take up to 5 °, especially in non-aligned holes of the shaft receptacles with respect to the axis of the plain bearing bushing misalignments. Such misalignments lead to a load on the edges of the plain bearing bush, in particular the edges of the sliding layer, where additional wear occurs. For rail vehicles, in the heavy load range and wind turbines in the off-shore area, spherical plain bearings are therefore used to compensate for misalignments. However, spherical plain bearings have the disadvantage that they require a large amount of space and consist of at least two components.

It is therefore an object of the invention to provide a plain bearing bushing, with a simple way a skewing of a run in the plain bearing bush shaft can be compensated, thus reducing the edge loads. It is also an object of the invention to provide a method for producing such a plain bearing bush.

This object is achieved with a plain bearing bush having the features of claim 1.

The plain bearing bush has a base layer of a base layer material and a sliding layer. Between the support layer and the sliding layer at least one elastomer layer is arranged.

Preferably, the base layer is outboard and the overlay layer is disposed internally.

The advantage of the plain bearing bush is that the elastomer layer compensates for the misalignment of a shaft mounted in the plain bearing bush and the sliding layer is thereby relieved in the edge region. The entire sliding layer can follow the skewing of the shaft, so that no additional stress occurs at the edges of the sliding layer, whereby the edge wear is minimized overall.

The plain bearing bush according to the invention is suitable for the compensation of misalignments of a shaft to a maximum of 5 °, in particular up to 2 ° and thus represents an interim solution between a conventional plain bearing bush without elastomer layer and a spherical bearing, the required space usually greater than a conventional plain bearing bushing but is less than or equal to a spherical bearing bushing.

Compared to a spherical plain bearing, the plain bearing bush according to the invention is only one component.

Another advantage of the plain bearing bush is that the damping properties of the plain bearing bush could be improved under dynamic load.

Preferably, the elastomeric layer comprises a matrix material of a rubber material.

It has been found that preferably rubber materials are well suited for the elastomer layer due to their elastic properties. Preferably, the elastomeric layer comprises an ethylene-propylene-diene rubber (EPDM) matrix material.

The advantage of this material is, in particular, that it adheres very well to the sliding layer and to the supporting layer, in particular when the sliding layer and the supporting layer each have a matrix material made of epoxy resin. A good adhesion is particularly necessary when the plain bearing bush is exposed to high loads and the elastomer layer must withstand not only pressure but also shear loads. In order to improve the adhesion even further, it is also possible to add adhesion promoters to the elastomer material.

Further elastomer materials for the matrix material of the elastomer layer are ethylene-propylene rubber (EPM), ethylene-acrylate rubber (EAM), fluorocarbon rubber (FKM), acrylate rubber (ACM), acrylonitrile-butadiene rubber (NBR), hydrogenated, Nitrile rubber (HNBR), carboxylate nitrile rubber (XNBR), hydrogenated carboxylate nitrile rubber (XHNBR), natural rubber (NR), ethyl vinyl acetate (EVA), chlorosulfonyl polyethylene rubber (CSM), chlorinated Polyethylene (CM), butyl or halobutyl rubber, silicone rubber (VMQ, MVQ), fluoro-silicone rubber (FVMQ, MFQ), chlorohydrin rubber (CO), epichlorohydrin rubber (ECO), polychloroprene rubber ( CR), one-component polyurethane (PU).

The mentioned elastomeric materials are for example made WO 2013 / 045114A2 and WO 2013/045087 A1 known. In these references, the elastomeric materials are used in energy-absorbing composite materials. These composite materials find application z. As in skis, surfboards, housing for computers or body parts of vehicles such. B. for interior trim and skin cladding elements.

The elastomer layer may additionally contain crosslinking agents from the group of peroxides, amines and / or bisphenols.

Since the plain bearing bush is exposed to high loads, it may be advantageous to equip the elastomer layer with reinforcing fibers. As reinforcing fibers are preferably glass fibers, nylon fibers, polyester fibers, carbon fibers, viscose fibers, aramid fibers and / or metal fibers in question. These fibers can also be incorporated as a fabric material.

Preferably, the sliding layer material of the sliding layer comprises at least one thermosetting polymer, which preferably forms the matrix material. Matrix material is the material that forms the largest portion of the overlay material. The thermosetting polymer used is preferably an epoxy resin.

Preferably, the sliding layer consists of at least one winding layer having reinforced with plastic filaments epoxy resin. The plastic filaments are preferably not or little abrasive. The epoxy resin may contain solid lubricants.

A winding layer refers to a layer which is produced by winding up at least one thread impregnated in epoxy resin, preferably in a cross winding technique.

A filament is in textile terminology the term for fibers with virtually unlimited length. Under a thread, a textile of several interconnected or twisted fibers is called.

Preferably, polyester filaments are used as plastic filaments.

The plastic threads preferably have polyester filaments and PTFE particles. The cured overlay of an epoxy resin matrix with plastic filaments of preferably polyester filaments and PTFE particles can be machined well. This sliding layer structure is therefore particularly suitable for precision sliding bearings, which must be reworked, for example, by drilling, honing or the like to final dimensions. PTFE acts as a solid lubricant and thus serves to improve the tribological properties of the sliding layer material.

Preferably, the proportion of PTFE particles in the plastic thread 2 wt .-% to 40 wt .-%, particularly preferably 30 wt .-% to 36 wt .-%.

Epoxy resins are preferably used which cure at temperatures T ≥ 120 ° C.

Preferably, bisphenol-based epoxy resins are used.

Preferably, an epoxy resin is used which contains graphite in a proportion of 1 wt .-% to 40 wt .-% based on the epoxy resin. Also, the epoxy resin may contain PTFE particles in a proportion of 1 wt .-% to 40 wt .-% based on the epoxy material.

On the one hand, the sliding layer material has good sliding properties and high wear resistance and also has good elastic properties, which is advantageous in conjunction with the elastomer layer.

The base layer material of the base layer preferably comprises at least one thermosetting polymer which preferably forms the matrix material. As a thermosetting polymer preferably also an epoxy resin is used.

Preferably, the support layer consists of at least one winding layer having reinforced with glass fibers and / or carbon fibers epoxy resin.

Preferably, the same epoxy resins are used for the sliding layer and the base course material.

Carbon fibers, also referred to as carbon fibers, are industrially produced fibers from carbonaceous feedstocks that are converted to graphitic carbon by chemical reactions adapted to the feedstock. Anisotropic carbon fibers show high strength and stiffness with low elongation at break in the axial direction.

In comparison to the sliding layer material, the base layer material is much stiffer and more stable.

Preferably, at least one intermediate layer of the base layer material is arranged between the base layer and the sliding layer.

The intermediate layer is preferably arranged between the elastomer layer and the sliding layer. The plain bearing bush preferably has a 4-layer structure: support layer - elastomer layer - intermediate layer - sliding layer. The elastomer layer is thus packed between two layers of base layer material.

It has been shown that the provision of the intermediate layer, the stability of the plain bearing bush can be significantly increased. Since the intermediate layer is preferably made of the same rigid material as the support layer, the strength of the entire plain bearing bush is significantly improved.

Preferably, a periodically constructed multilayer system is arranged between the support layer and the sliding layer, wherein the periodicity consists of at least two individual layers, wherein a single layer consists of an elastomer layer and a single layer of an intermediate layer of the support layer material.

With multiple elastomer layers in such a multi-layer system even larger misalignments of a wave can be compensated without the stability of the plain bearing bush is impaired. Larger misalignments can indeed be compensated with a single corresponding thicker elastomer layer. However, the stability is lower in the axial direction due to the shearing forces of the plain bearing bush acting in the axial direction.

The thickness D _{2 of} the elastomer layer is preferably 0.2 mm to 200 mm, particularly preferably 0.2 mm to 100 mm, in particular 0.25 mm to 15 mm.

The thickness D _{4 of} the sliding layer is preferably 0.5 mm to 300 mm, particularly preferably 0.5 mm to 15 mm, in particular 0.5 mm to 5 mm.

The thickness D _{1 of} the support layer is preferably 1 mm to 300 mm, preferably 3 mm to 50 mm, in particular 3 mm to 10 mm.

The thickness D _{3 of} the intermediate layer is preferably 0.5 mm to 100 mm, preferably 0.5 mm to 15 mm, in particular 1 mm to 5 mm.

The thickness D _{6 of} the multilayer system is preferably 1.4 mm to 500 mm, more preferably 1.4 mm to 100 mm. These thicknesses preferably relate to plain bearing bushes with an inner diameter of 20 to 300 mm.

The details of the thicknesses, in particular the thicknesses D ₁ to D ₄ , relate to plain bearing bushes with an inner diameter of 10 mm to 1000 mm, preferably 25 mm to 300 mm. The outer diameter of the plain bearing bushes are 15 mm to 1400 mm, preferably 42 mm to 430 mm. The bush widths are preferably in the range of 10 mm to 1000 mm, preferably 25 mm to 300 mm, in particular 20 mm to 130 mm.

The plain bearing bush according to the invention can be used in the temperature range from -40 ° C to 140 ° C, preferably in the temperature range from -40 ° C to 80 ° C.

Exemplary thickness combinations are listed in the following table: Bushing width [mm] InnerØ [mm] D ₁ [mm] D ₂ [mm] D ₃ [mm] D ₄ [mm] Misalignment α outerØ 20 25 2.0 2.5 1.5 1.5 Max. 2 ° 40 35 50 2.5 4 2 2 Max. 2 ° 71 49 70 3 7 2 2 Max. 2 ° 98 70 100 3 9 2 2 Max. 2 ° 138 105 160 3.5 10.5 2.5 2 Max. 2 ° 200 130 200 5 11 2.5 2 Max. 2 ° 241

• a) Herstellen einer Gleitschicht aus einem Gleitschichtmaterial,
• b) Herstellen einer Elastomerschicht durch Ummanteln der Gleitschicht mit einem plastischen Elastomermaterial,
• c) Herstellen einer Tragschicht durch Ummanteln der Elastomerschicht mit einem Tragschichtmaterial,
• d) erste Wärmebehandlung des mit den Verfahrensschritten a) bis c) hergestellten Schichtsystems bei einer Temperatur T₁,
• e) zweite Wärmebehandlung des Schichtsystems bei einer Temperatur T₂ > T₁,
• f) Abkühlen und Bearbeiten der Gleitlagerbuchse auf Endmaße.

The plain bearing bush is produced by a process with at least the following process steps, which are carried out in chronological succession:

• a) producing a sliding layer from a sliding layer material,
• b) producing an elastomer layer by sheathing the overlay with a plastic elastomeric material,
• c) producing a base layer by sheathing the elastomer layer with a base course material,
• d) first heat treatment of the layer system produced by method steps a) to c) at a temperature T ₁ ,
• e) second heat treatment of the layer system at a temperature T ₂ > T ₁ ,
• f) cooling and machining of plain bearing bush to final dimensions.

The first heat treatment according to method step d), which is also referred to as fishing, serves to cure the overlay and the base layer material, but the elastomer material is still left in the plastic state. The curing is started in the first heat treatment. Complete curing preferably does not yet take place in this process step. Since the elastomer layer is between the support layer and the sliding layer, the elastomer layer is clamped by the angeling between these layers, so that a pressure is built up in the elastomer layer.

In the subsequent second heat treatment at a temperature T ₂ > T ₁ , the transfer of the plastic elastomer material in the elastic state and the complete curing of the overlay and the base layer material takes place.

Preferably, according to method step a), at least one plastic filament having plastic filaments impregnated with epoxy resin is wound onto a winding core.

Preferably, according to method step c), at least one glass fiber thread impregnated with epoxy resin and / or a carbon thread impregnated with epoxy resin are wound onto the plastic elastomer material of the elastomer layer.

Since the epoxy resin begins to cure from a temperature of 80 ° C., the gelling according to method step d) is preferably carried out at a temperature T ₁ of 80 ° C. to 100 ° C., in particular in a temperature range from 85 ° C. to 95 ° C.

The gelling is carried out according to process step d) over a period of preferably 10 to 180 minutes, more preferably in a period of 30 to 50 minutes.

Preferably, a rubber material, more preferably EPDM, is used for the elastomeric layer. This material is in the plastic state at room temperature and is preferably wrapped in strips or webs of, for example, 10 cm to 50 cm around the sliding layer. If the web has the desired thickness, a single wrapping of the sliding layer is sufficient. For thin webs with thicknesses of, for example, 0.5 mm, so many layers are wound up until the desired thickness for the elastomer layer has been achieved. The support layer material is then applied to this plastic elastomer material.

The rubber material is converted by the second heat treatment in step e), preferably at a temperature T ₂ in the range of 120 ° C to 160 ° C, more preferably at 130 ° C to 150 ° C in the elastic state. It is a vulcanization.

The second heat treatment according to process step e) is preferably carried out over a period of 0.5 h to 20 h, more preferably in a period of 0.5 h to 5 h.

It has been found that the elastomer layers are put under a certain pressure during the fishing by the incipient hardening of the sliding and supporting layers, whereby the subsequent vulcanization process is assisted. The degree of crosslinking by this pressure and the temperature of 130 ° to 150 ° is so high that the elastic material has been completely vulcanized.

Preferably, in process step c), the glass fiber thread and / or the carbon thread is wound with a thread tension of 5 N to 1000 N, particularly preferably from 10 N to 100 N, in particular from 40 N to 80 N, and preferably deposited in a cross-winding technique. As a result, the plastic elastomer material is already pressurized prior to setting in accordance with method step c), which additionally improves the vulcanization and thus the degree of crosslinking.

Preferably, the plastic elastomer material in process step c) is wrapped airtight. This means that preferably the winding layer is extended beyond the edge regions of the elastomer layer, so that an air seal on all sides of the elastomer layer can also be achieved on the end faces. This measure also improves the vulcanization result. Airtight wrapping of the base layer on the elastomeric material is important to prevent air entrapment during vulcanization and complete vulcanization throughout the elastomer.

Preferably, between process steps a) and c), instead of process step b), further and / or modified process steps a1) and b1) are carried out. The method step a1) preferably comprises the production of an intermediate layer of base layer material, preferably by sheathing the sliding layer with the base layer material. Process step b1) comprises producing an elastomer layer, preferably by sheathing the intermediate layer with a plastic elastomer material. The process steps a1) and b1) are preferably carried out once for the production of a 4-layer system.

• a) Herstellen einer Gleitschicht,
• a1) Herstellen einer Zwischenschicht aus einem Tragschichtmaterial,
• b1) Herstellen einer Elastomerschicht durch Ummanteln der Zwischenschicht mit einem plastischen Elastomermaterial,
• c) Herstellen einer Tragschicht durch Ummanteln der Elastomerschicht mit dem Tragschichtmaterial,
• d) erste Wärmebehandlung des mit den Verfahrensschritten a), a1), b1), c) hergestellten Schichtsystems bei einer Temperatur T₁,
• e) zweite Wärmebehandlung des Schichtsystems bei einer Temperatur T₂ > T₁,
• f) Abkühlen und Bearbeiten der Gleitlagerbuchse auf Endmaße.

The method for producing a sliding bearing bush with four layers is therefore carried out with the following process steps, which are carried out in succession:

• a) producing a sliding layer,
• a1) producing an intermediate layer from a base course material,
• b1) producing an elastomer layer by sheathing the intermediate layer with a plastic elastomer material,
• c) producing a base layer by sheathing the elastomer layer with the base course material,
• d) first heat treatment of the layer system produced by method steps a), a1), b1), c) at a temperature T ₁ ,
• e) second heat treatment of the layer system at a temperature T ₂ > T ₁ ,
• f) cooling and machining of plain bearing bush to final dimensions.

The process steps a1) and b1) can also be carried out two or more times to produce a multi-layer system before the process step c) is followed.

By means of these additional or modified process steps, it is possible to produce a multilayer coating system which is constructed periodically. The period preferably consists of two individual layers, namely an intermediate layer of base layer material and an elastomer layer.

Exemplary embodiments will be explained in more detail with reference to the drawings.

Show it:

1 a perspective view of a plain bearing bush with a sliding layer, an elastomer layer and a support layer,

2 a section through the in 1 shown plain bearing bush along the line AA,

3 the front side of a plain bearing bush according to a further embodiment with an additional intermediate layer,

4 a section through the in 3 shown plain bearing bush along the line BB,

5 in the 4 shown plain bearing bush in a loaded state with a shaft for illustrating the misalignment,

6 a section through a plain bearing bush according to another embodiment and

7 a section through a plain bearing bush according to another embodiment.

In the 1 is a plain bearing bush 1 shown in perspective, an external support layer 2 , an elastomer layer 4 and an internal sliding layer 8th having.

In the 2 is a section along the line AA through the in 1 shown plain bearing bush shown. It can be seen that the base layer 2 a thickness D ₄ , the elastomer layer 4 between the base course 2 and the sliding layer 8th is arranged, a thickness D ₂ and the sliding layer 8th has a thickness D ₁ . The thickness D _{2 of} the elastomer layer is greater than the thickness D _{4 of} the base layer and the thickness D _{1 of} the sliding layer.

In the 3 is another, particularly preferred embodiment of the plain bearing bush 1 shown. This plain bearing bush 1 differs from the plain bearing bush according to the 1 in that an intermediate layer 6 is provided from base course material. The intermediate layer 6 From base layer material is located between the sliding layer 8th and the elastomeric layer 4 , The elastomer layer 4 is thus located between two layers of base course material, whereby a particularly robust design is guaranteed.

The thicknesses of the individual layers should be selected according to the respective application. A plain bearing bush may, for example, have the following dimensions:
Inner diameter 70 mm
Outer diameter 100 mm
Thickness D _{4 of} the plain bearing layer 2 mm
Thickness D _{3 of} the intermediate layer 2 mm
Thickness D _{2 of} the elastomer layer 8 mm
Thickness D _{1 of} the base layer 3 mm.

The total thickness D ₇ is thus 15 mm in this example. The outer diameter of a comparable spherical plain bearing is 105 mm. The plain bearing bush according to the invention thus has the advantage that it requires a smaller installation space and consists of only one component.

Preparation:

In the production of a plain bearing bush with a four-layer layer structure, first, the sliding layer 8th wound on a winding mandrel, not shown, until the desired thickness D _{4 is} reached. Then then becomes the intermediate layer 6 on the wet sliding layer 8th applied, which has not cured yet. Again, the required thickness D _{3 of} the intermediate layer 6 set. Subsequently, the elastomeric material, which is usually available in strips or webs with thicknesses of 0.5 mm to 5 mm, according to so often sheathed / wrapped until the desired layer thickness D _{2 is} reached.

After being jacketed with the appropriate elastomeric layer to the desired thickness D ₂ , glass fiber yarns previously passed through a resin curing bath are wound over the elastomeric layer at a suitable tension and the elastomeric material is completely overwound to airtightly seal for vulcanization during the curing process. Here, the thread tension can be measured with a luggage scale up to 100 N, depending on the thread guide and the number of deflection. Preferably, however, a thread tension of not more than 10 N is used.

It then follows the fishing at 90 ° C for 30 minutes and the second heat treatment at 130 ° C for 3 hours. After cooling, processing is carried out to final dimensions.

In the 5 is a section along the line BB in 3 shown plain bearing bush 1 shown. The plain bearing bush 1 carries a wave 20 , which is a misalignment with respect to the longitudinal axis L of the plain bearing bush 1 has, which is characterized by the angle α. This angle α is about 2 ° in the illustration shown here. The arrow B indicates the load. The wave 20 performs a pivoting movement, as illustrated by the arrow shown in the left portion of the figure. The pivoting angle γ is for example ± 45 °.

The misalignment of the wave 20 causes both the overlay 8th as well as the intermediate layer 6 From supporting layer material takes the misalignment of the shaft and thus also has a misalignment. As in the installed state, the base layer 2 the plain bearing bush 1 can not change their position, the elastomer layer 4 compressed or stretched. This will cause the misalignment of the shaft 20 balanced.

In the 6 is another embodiment of a plain bearing bush 1 shown. It is a multi-layer system 10 with a period 12 , where the period 12 from two single layers, namely an intermediate layer 6 of base layer material and an elastomer layer 4 consists. In the 6 embodiment shown thus has a layer structure from the outside inwards as follows: support layer 2 , Elastomeric layer 4 , Intermediate layer 6 , Elastomeric layer 4 , Base course 6 and sliding layer 8th ,

The individual elastomer layers 4 are significantly thinner than the elastomer layers 4 according to the 2 or the 4 , With the embodiment according to the 6 is also a misalignment of a wave as shown in Figure, compensated.

In the 7 is shown another embodiment in which more than two periods 12 of the multilayer system 10 can be provided. The thickness D _{6 of} the multilayer system is preferably 80 mm. According to a particular embodiment is for the elastomer layer 4 an elastomer of EPDM (ethylene propylene diene rubber) is used. This material can be used for temperatures from -40 ° C to 140 ° C.

LIST OF REFERENCE NUMBERS

1

 plain bearing bush

2

 base course

4

 elastomer layer

6

 interlayer

8th

 Overlay

10

 Multilayer coating system

12

 periodicity

20

 wave

D ₁

 Thickness of the carrier layer

D ₂

 Thickness of the elastomer layer

D ₃

 Thickness of the intermediate layer

D ₄

 Thickness of the sliding layer

D ₅

 Thickness of the periodicity

D ₆

 Thickness of the multilayer system

D ₇

 total thickness

B

 burden

L

 Longitudinal axis of the plain bearing bush

α

 Angle misalignment

γ

 Swivel angle of the shaft

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 1900950 A2 [0002]
• WO 2013/045114 A2 [0018]
• WO 2013/045087 A1 [0018]

Claims (25)

Plain bearing bush ( 1 ) with a base layer ( 2 ) of a base course material and with a sliding layer ( 8th ), characterized in that between the base layer ( 2 ) and the sliding layer ( 8th ) at least one elastomeric layer ( 4 ) is arranged. Sliding bearing bush according to claim 1, characterized in that the elastomer layer ( 4 ) comprises a matrix material of a rubber material. Sliding bearing bush according to claim 1 or 2, characterized in that the elastomer layer ( 4 ) has a matrix material of ethylene propylene diene rubber. Sliding bearing bush according to one of claims 1 to 3, characterized in that the elastomer layer ( 4 ) Crosslinking agent from the group of peroxides, amines and / or bisphenols. Sliding bearing bush according to one of claims 1 to 4, characterized in that the elastomer layer ( 4 ) Comprises reinforcing fibers. Sliding bearing bush according to one of claims 1 to 5, characterized in that the sliding layer ( 8th ) consists of at least one winding layer having reinforced with plastic filaments epoxy resin. Sliding bearing bushing according to one of claims 1 to 6, characterized in that the support layer ( 2 ) consists of at least one winding layer having reinforced with glass fibers and / or carbon fibers epoxy resin. Sliding bearing bush according to one of claims 1 to 7, characterized in that between the support layer ( 2 ) and the sliding layer ( 8th ) at least one intermediate layer ( 6 ) is arranged from the base layer material. Sliding bearing bush according to claim 8, characterized in that the intermediate layer ( 6 ) between the elastomer layer ( 4 ) and the sliding layer ( 8th ) is arranged. Sliding bearing bush according to one of claims 1 to 9, characterized in that between the support layer ( 2 ) and the sliding layer ( 8th ) a periodically structured multilayer coating system ( 10 ), in which the periodicity ( 12 ) consists of at least two individual layers, wherein a single layer of an elastomer layer ( 4 ) and a single layer of an intermediate layer ( 6 ) consists of the base course material. Sliding bearing bush according to one of claims 1 to 10, characterized in that the thickness D _{2 of} the elastomer layer ( 4 ) Is 0.2 mm to 200 mm. Sliding bearing bush according to one of claims 1 to 11, characterized in that the thickness D _{4 of} the sliding layer ( 8th ) Is 0.5 mm to 300 mm. Sliding bearing bush according to one of claims 1 to 12, characterized in that the thickness D _{1 of} the support layer ( 2 ) Is 1 mm to 300 mm. Sliding bearing bushing according to one of claims 1 to 13, characterized in that the thickness D _{3 of} the intermediate layer is 0.5 mm to 100 mm. Sliding bearing bush according to one of claims 1 to 14, characterized in that the thickness D _{6 of} the multilayer system ( 10 ) Is 1.4 mm to 500 mm. Method for producing a plain bearing bush ( 1 ) having at least the following process steps, which are carried out in chronological succession: a) producing a sliding layer ( 8th ) of a sliding layer material, b) producing an elastomer layer ( 4 ) by sheathing the overlay ( 8th ) with a plastic elastomer material, c) producing a base layer ( 2 ) by encasing the elastomer layer ( 4 ) with a base layer material, d) heat treatment of the layer system produced with the method steps a), b) c) at a temperature T ₁ , e) heat treatment of the layer system at a temperature T ₂ > T ₁ , f) cooling and machining the plain bearing bush to final dimensions. A method according to claim 16, characterized in that according to method step a) at least one plastic filaments impregnated with epoxy resin plastic thread is wound onto a winding core. A method according to claim 16 or 17, characterized in that according to method step c) at least one impregnated with epoxy glass fiber thread and / or impregnated with epoxy resin carbon thread on the plastic elastomer material of the elastomer layer ( 4 ) is wound. Method according to one of claims 16 to 18, characterized in that the first heat treatment according to process step d) at a temperature T ₁ of 80 ° C to 100 ° C is performed. Method according to one of claims 16 to 19, characterized in that the first heat treatment process according to method step d) is carried out over a period of 10 to 180 minutes. Method according to one of claims 16 to 20, characterized in that the second heat treatment according to method step e) is carried out at a temperature T ₂ in the range of 120 ° C to 160 ° C. Method according to one of claims 16 to 21, characterized in that the second heat treatment according to method step e) is carried out over a period of 0.5 to 20 hours. Method according to one of claims 16 to 22, characterized in that according to method step c) the glass fiber thread and / or carbon thread is wound with a thread tension of 5 N to 1000 N on the underlying layer. Method according to one of claims 16 to 23, characterized in that the plastic elastomer material in process step c) is wrapped airtight. Method according to one of claims 16 to 24, characterized in that between the method steps a) and c) instead of the method step b) at least once the method steps a1) and b1) are carried out with a1) producing an intermediate layer ( 6 ) with base course material and b1) producing an elastomer layer ( 4 ) with a plastic elastomeric material.

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