DE102015225823B4 - Plain bearing bush and method for manufacturing the plain bearing bush - Google Patents

Abstract

Plain bearing bushing (1) with a supporting layer (2) made of a supporting layer material and with a sliding layer (8), the sliding layer (8) consisting of at least one winding layer, which has epoxy resin reinforced with plastic filaments and the supporting layer (2) consists of at least one winding layer , which has epoxy resin reinforced with glass fibers and / or plastic fibers, characterized in that at least one elastomer layer (4) is arranged between the support layer (2) and the sliding layer (8), the elastomer layer (4) having a matrix material made of a rubber material.

Description

The invention relates to a plain bearing bush according to the preamble of claim 1 and a method for producing such a plain bearing bush according to claim 13.

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

The base layer is typically characterized by an epoxy resin matrix reinforced with glass fibers or carbon fibers, which has a very high load-bearing capacity. The sliding layer is mostly composed of special non-abrasive or less abrasive plastic fibers or threads as reinforcement elements, solid lubricants and also an epoxy resin matrix.

The composition is adjusted in such a way that the required tribological properties are established, which depend on the material and nature of the counter-rotating device and the environmental conditions, such as e.g. B. wet or dry running can vary. Such plain bearing bushes, consisting of a sliding layer and a base layer, can usually be statically loaded up to 230 MPa and dynamically loaded up to 140 MPa.

The plain bearing bushes accommodate a shaft which, in particular in the case of non-aligned bores in the shaft receptacles, can assume misalignments of up to 5 ° with respect to the axis of the plain bearing bush. Such misalignments lead to loading of the edges of the plain bearing bush, in particular the edges of the sliding layer, where additional wear occurs. In rail vehicles, in the heavy load area and in wind turbines in the offshore area, spherical bearings are therefore used to compensate for misalignments. However, spherical plain bearings have the disadvantage that they require a large installation space and consist of at least two components.

the U.S. 5,143,457 discloses an elastic swivel sliding bearing, consisting of an inner sleeve, a sliding sleeve surrounding the inner sleeve, and a support sleeve made of elastic rubber material immovably attached to the outside of the sliding sleeve. The sliding sleeve consists of a shrink tube that closes on itself in the circumferential direction and is shrunk onto the inner sleeve.

From the DE 44 30 037 A1 a bearing bushing with an inner tube made of metal and an intermediate tube made of plastic, which is seated on the inner tube so as to be slidable at least in the circumferential direction, is known. The outside of the intermediate pipe is provided with a vulcanization layer. The inside of the intermediate tube is shaped according to the outer contour of the inner tube. During the production of the bearing bush, the intermediate tube made of plastic is inserted into the vulcanization mold together with the inner tube made of metal, whereby the intermediate tube of the outer contour of the inner tube is correspondingly deformed during vulcanization.

the DE 43 11 634 A1 discloses a method for producing a sleeve-shaped plain bearing, in which, in a first process step, a thin sliding layer made of a suitable polymer with good sliding properties is applied to a mandrel by plastic-technical processes and the sliding layer still on the mandrel with a carrier made of a hard or flexible polymer reshaped. The sliding layer is provided with at least one separating slot.

It is therefore the object of the invention to provide a plain bearing bush with which a misalignment of a shaft guided in the plain bearing bush can be compensated in a simple manner in order to reduce 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 bushing with the features of claim 1.

The plain bearing bush has a base layer made of a base layer material and a sliding layer. At least one elastomer layer is arranged between the base layer and the sliding layer.

The support layer is preferably arranged on the outside and the sliding layer on the inside.

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 area. The entire sliding layer can follow the misalignment of the shaft, so that no additional load occurs on the edges of the sliding layer, which minimizes overall edge wear.

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

In comparison 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 loads.

The elastomer layer has a matrix material made of a rubber material.

It has been shown that rubber materials are preferably well suited for the elastomer layer due to their elastic properties. The elastomer layer preferably has a matrix material made of ethylene-propylene-diene rubber (EPDM).

The advantage of this material is in particular that it adheres very well to the sliding layer and to the base layer, especially when the sliding layer and the base layer each have a matrix material made of epoxy resin. Good adhesion is particularly necessary when the plain bearing bush is exposed to great loads and the elastomer layer has to withstand not only pressure but also shear loads. In order to improve the adhesion even further, adhesion promoters can also be added to the elastomer material.

Other 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), fluorosilicone rubber (FVMQ, MFQ), chlorohydrin rubber (CO), epichlorohydrin rubber (ECO), polychloroprene rubber (CR ), one-component polyurethane (PU).

The elastomer materials mentioned are made of, for example WO 2013/045114 A2 and WO 2013/045087 A1 known. In these documents, the elastomer materials are used in energy-absorbing composite materials. These composite materials are used e.g. B. for skis, surfboards, housings for computers or body parts of vehicles, such as. B. for interior cladding and outer skin cladding elements.

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

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

The sliding layer material of the sliding layer preferably has at least one thermosetting polymer, which preferably forms the matrix material. Matrix material is the material that makes up the largest proportion of the sliding layer material. An epoxy resin is preferably used as the thermosetting polymer.

The sliding layer consists of at least one winding layer that has epoxy resin reinforced with plastic filaments. The plastic filaments are preferably not or only slightly abrasive. The epoxy resin can contain solid lubricants.

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

In textile terminology, a filament is the name for fibers of practically unlimited length. A thread is a textile made of several interconnected or twisted fibers.

Polyester filaments are preferably used as plastic filaments.

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

The proportion of PTFE particles in the plastic thread is preferably 2% by weight to 40% by weight, particularly preferably 30% by weight to 36% by weight.

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

Bisphenol-based epoxy resins are preferably used.

An epoxy resin is preferably used which contains graphite in a proportion of 1% by weight to 40% by weight, based on the epoxy resin. The epoxy resin can also contain PTFE particles in a proportion of 1% by weight to 40% by weight 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 has at least one thermosetting polymer, which preferably forms the matrix material. An epoxy resin is preferably also used as the thermosetting polymer.

The base layer consists of at least one winding layer which has epoxy resin reinforced with glass fibers and / or carbon fibers.

The same epoxy resins are preferably used for the sliding layer and for the base layer material.

Carbon fibers, also known as carbon fibers, are industrially produced fibers made from carbon-containing raw materials, which are converted into graphite-like carbon through chemical reactions that are adapted to the raw material. Anisotropic carbon fibers show high strength and rigidity with at the same time low elongation at break in the axial direction.

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

At least one intermediate layer made of the base layer material is preferably 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 bushing preferably has a 4-layer structure: base layer - elastomer layer - intermediate layer - sliding layer. The elastomer layer is thus wrapped between two layers of base material.

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

A periodically structured multilayer system is preferably arranged between the base layer and the sliding layer, in which the periodicity consists of at least two individual layers, one individual layer consisting of an elastomer layer and one individual layer consisting of an intermediate layer made of the base layer material.

With several elastomer layers in such a multilayer system, even larger misalignments of a shaft can be compensated without the stability of the plain bearing bush being impaired. Larger misalignments can also be compensated for with a single, correspondingly thicker elastomer layer. However, the stability is lower in the axial direction due to the shear forces of the plain bearing bush acting in the axial direction.

The fat D ₂ 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 fat D ₄ 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 fat D ₁ the base layer is preferably 1 mm to 300 mm, preferably 3 mm to 50 mm, in particular 3 mm to 10 mm.

The fat D ₃ the intermediate layer is preferably 0.5 mm to 100 mm, more preferably 0.5 mm to 15 mm, in particular 1 mm to 5 mm.

The fat D ₆ of the multilayer system is preferably 1.4 mm to 500 mm, particularly preferably 1.4 mm to 100 mm. These thicknesses preferably relate to plain bearing bushes with an inside diameter of 20 to 300 mm.

The details of the thicknesses, especially the thicknesses D ₁ until D ₄ , relate to plain bearing bushes with an inside diameter of 10 mm to 1000 mm, preferably 25 mm to 300 mm. The outside diameter of the plain bearing bushes is 15 mm to 1400 mm, preferably 42 mm to 430 mm. The socket widths are preferably in the range from 10 mm to 1000 mm, preferably from 25 mm to 300 mm, in particular from 20 mm to 130 mm.

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

Exemplary thickness combinations are compiled in the following table: Bushing width [mm] Inside∅ [mm] D ₁ [mm] D ₂ [mm] D ₃ [mm] D ₄ [mm] Misalignment α Outside∅ 20th 25th 2.0 2.5 1.5 1.5 max. 2 ° 40 35 50 2.5 4th 2 2 max. 2 ° 71 49 70 3 7th 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

• The plain bearing bush is manufactured using a process with at least the following process steps, which are carried out one after the other:
  1. a) production of a sliding layer from a sliding layer material,
  2. b) Production of an elastomer layer by sheathing the sliding layer with a plastic elastomer material,
  3. c) Creating a base layer by wrapping the elastomer layer with a base layer material,
  4. d) first heat treatment of the layer system produced with process steps a) to c) at a temperature T ₁ ,
  5. e) second heat treatment of the layer system at a temperature T ₂ > T1,
  6. f) Cooling down and processing of the plain bearing bush to final dimensions.

The first heat treatment according to method step d), which is also referred to as gelling, serves to harden the sliding layer material and the base layer material, but the elastomer material is still left in the plastic state. Hardening is started in the first heat treatment. Complete curing preferably does not yet take place in this process step. Since the elastomer layer is located between the base layer and the sliding layer, the elastomer layer is clamped between these layers by gelation, 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 plastic elastomer material is converted into the elastic state and the sliding layer material and the base layer material are completely cured.

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

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

Since the epoxy resin begins to harden 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 of 85 ° C to 95 ° C.

According to process step d), the gelling is carried out over a period of preferably 10 to 180 minutes, particularly preferably in a period of 30 to 50 minutes.

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

The rubber material is converted into the elastic state by the second heat treatment in process step e), preferably at a temperature T ₂ in the range from 120 ° C to 160 ° C, particularly preferably at 130 ° C to 150 ° C. This 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, particularly preferably over a period of 0.5 h to 5 h.

It has been shown that the elastomer layers are put under a certain pressure during gelation due to the beginning hardening of the sliding and base layers, which supports the subsequent vulcanization process. The degree of crosslinking due to this pressure and the temperature of 130 ° to 150 ° is so high that the elastic material has been completely vulcanized.

In process step c), the glass fiber thread and / or the carbon thread is preferably wound with a thread tension of 5 N to 1000 N, particularly preferably 10 N to 100 N, in particular 40 N to 80 N, and is preferably deposited using the cross-winding technique. As a result, the plastic elastomer material is already put under pressure before the gelling in accordance with process step c), which additionally improves the vulcanization and thus the degree of crosslinking.

The plastic elastomer material is preferably wrapped in airtight manner in process step c). This means that the wound layer is preferably extended beyond the edge regions of the elastomer layer so that an all-round air seal of the elastomer layer can also be achieved on the end faces. This measure also improves the vulcanization result. The airtight wrapping of the base layer on the elastomer material is important so that no air inclusions occur during vulcanization and the vulcanization can take place completely and homogeneously over the entire elastomer.

Preferably, further and / or modified method steps a1) and b1) are carried out between method steps a) and c) instead of method step b). Method step a1) preferably comprises the production of an intermediate layer from base layer material, preferably by sheathing the sliding layer with the base layer material. Method step b1) comprises the production of an elastomer layer, preferably by sheathing the intermediate layer with a plastic elastomer material. Process steps a1) and b1) are preferably carried out once to produce 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 process for producing a plain bearing bush with four layers is therefore carried out with the following process steps, which are carried out one after the other:

• a) production of a sliding layer,
  • a1) production of an intermediate layer from a base layer material,
  • b1) producing an elastomer layer by sheathing the intermediate layer with a plastic elastomer material,
• c) Creating a base layer by sheathing the elastomer layer with the base layer material,
• d) first heat treatment of the layer system produced with process steps a), a1), b1), c) at a temperature T ₁ ,
• e) second heat treatment of the layer system at a temperature T ₂ > T1,
• f) Cooling down and processing of the plain bearing bush to final dimensions.

Process steps a1) and b1) can also be carried out two or more times to produce a multilayer system before process step c) follows.

These additional or modified process steps make it possible to produce a multilayer system that is built up periodically. The period preferably consists of two individual layers, namely an intermediate layer made of base layer material and an elastomer layer.

Exemplary embodiments are explained in more detail below with reference to the drawings.

• 1 eine perspektivische Darstellung einer Gleitlagerbuchse mit einer Gleitschicht, einer Elastomerschicht und einer Tragschicht,
• 2 einen Schnitt durch die in 1 gezeigte Gleitlagerbuchse längs der Linie A-A,
• 3 die Stirnseite einer Gleitlagerbuchse gemäß einer weiteren Ausführungsform mit einer zusätzlichen Zwischenschicht,
• 4 einen Schnitt durch die in 3 gezeigte Gleitlagerbuchse längs der Linie B-B,
• 5 die in 4 dargestellte Gleitlagerbuchse in belastetem Zustand mit einer Welle zur Veranschaulichung der Schiefstellung,
• 6 einen Schnitt durch eine Gleitlagerbuchse gemäß einer weiteren Ausführungsform und
• 7 einen Schnitt durch eine Gleitlagerbuchse gemäß einer weiteren Ausführungsform.

Show it:

• 1 a perspective view of a plain bearing bushing with a sliding layer, an elastomer layer and a base layer,
• 2 a section through the in 1 plain bearing bush shown along the line AA,
• 3 the end face of a plain bearing bush according to a further embodiment with an additional intermediate layer,
• 4th a section through the in 3 shown plain bearing bush along the line BB,
• 5 in the 4th The illustrated plain bearing bush in a loaded condition with a shaft to illustrate the misalignment,
• 6th a section through a plain bearing bush according to a further embodiment and
• 7th a section through a plain bearing bush according to a further embodiment.

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

In the 2 is a section along the line AA through the in 1 The plain bearing bush shown is shown. It can be seen that the base course 2 a thick one D ₄ , the elastomer layer 4th that is between the base course 2 and the sliding layer 8th is arranged a thickness D ₂ and the sliding layer 8th a thick one D ₁ having. The fat D ₂ the elastomer layer is larger than the thickness D ₄ the base course and the thickness D ₁ the sliding layer.

In the 3 is a further, particularly preferred embodiment of the plain bearing bush 1 shown. This plain bearing bush 1 differs from the plain bearing bush according to 1 by having an intermediate layer 6th is provided from base course material. The intermediate layer 6th made of base layer material is located between the sliding layer 8th and the elastomer layer 4th . The elastomer layer 4th is thus located between two layers of base material, which ensures a particularly resilient design.

• Innendurchmesser 70 mm
• Außendurchmesser 100 mm
• Dicke D₄ der Gleitlagerschicht 2 mm
• Dicke D₃ der Zwischenschicht 2 mm
• Dicke D₂ der Elastomerschicht 8 mm
• Dicke D₁ der Tragschicht 3 mm.

The thicknesses of the individual layers are to be selected according to the respective application. A plain bearing bush can have the following dimensions, for example:

• Inner diameter 70 mm
• Outer diameter 100 mm
• thickness D ₄ the plain bearing layer 2 mm
• thickness D ₃ 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 therefore 15 mm in this example.

The outside 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.

Manufacturing example:

When producing a plain bearing bush with a four-layer structure, the sliding layer is the first 8th wound on a winding mandrel, not shown, until the desired thickness D ₄ is reached. Then subsequently the intermediate layer 6th on the wet sliding layer 8th applied that has not yet hardened. Again, this will be the required thickness D ₃ the intermediate layer 6th set. The elastomer material, which is usually available in strips or sheets with thicknesses of 0.5 mm to 5 mm, is then sheathed / wrapped around until the desired layer thickness is achieved D ₂ is reached.

After sheathing with the appropriate elastomer layer to the desired thickness D ₂ glass fiber threads, which previously run through a resin hardening bath, are wound over the elastomer layer with a corresponding thread tension, and the elastomer material is completely wrapped so that it is hermetically sealed for vulcanization during the curing process. The thread tension measured with a luggage scale can be up to 100 N depending on the thread guide and the number of deflections. However, a thread tension of a maximum of 10 N is preferred.

This is followed by gelling at 90 ° C. for 30 minutes and the second heat treatment at 130 ° C. for 3 hours. After it has cooled down, it is processed to final dimensions.

In the 5 is a section along the line BB of in 3 shown plain bearing bush 1 shown. The plain bearing bush 1 carries a wave 20th that are inclined with respect to the longitudinal axis L. the plain bearing bush 1 having that by the angle α is marked. That angle α is about 2 ° in the illustration shown here. With the arrow B. the load is indicated. The wave 20th performs a pivoting movement, as illustrated by the arrow shown in the left-hand area of the figure. The swivel angle γ is, for example, ± 45 °.

The misalignment of the shaft 20th causes both the sliding layer 8th as well as the intermediate layer 6th takes over the misalignment of the shaft from base layer material and thus also has a misalignment. Because in the installed state the base course 2 the plain bearing bush 1 cannot change its position, the elastomer layer becomes 4th compressed or stretched. This will cause the shaft to be skewed 20th balanced.

In the 6th is a further embodiment of a plain bearing bush 1 shown. It is a multilayer system 10 with a period 12th , where the period 12th from two individual layers, namely an intermediate layer 6th made of base layer material and an elastomer layer 4th consists. In the 6th The embodiment shown thus has a layer structure, viewed from the outside in, as follows: Base layer 2 , Elastomer layer 4th , Intermediate layer 6th , Elastomer layer 4th , Intermediate layer 6th and sliding layer 8th .

The individual elastomer layers 4th are significantly thinner than the elastomer layers 4th according to the 2 or the 4th . With the embodiment according to 6th a misalignment of a shaft as shown in the figure can also be compensated for.

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

List of reference symbols

1

Plain bearing bush

2

Base course

4th

Elastomer layer

6th

Intermediate layer

8th

Sliding layer

10

Multilayer system

12th

periodicity

20th

wave

D1

Thickness of the carrier layer

D2

Thickness of the elastomer layer

D3

Thickness of the intermediate layer

D4

Thickness of the sliding layer

D5

Thickness of the periodicity

D6

Thickness of the multilayer system

D7

Total thickness

B.

load

L.

Longitudinal axis of the plain bearing bush

α

Angle misalignment

γ

Swivel angle of the shaft

Claims (22)

Plain bearing bush (1) with a base layer (2) made of a base layer material and with a sliding layer (8), the sliding layer (8) consisting of at least one winding layer which has epoxy resin reinforced with plastic filaments and the supporting layer (2) consists of at least one winding layer , which has epoxy resin reinforced with glass fibers and / or plastic fibers, characterized in that at least one elastomer layer (4) is arranged between the support layer (2) and the sliding layer (8), the elastomer layer (4) having a matrix material made of a rubber material. Plain bearing bush Claim 1 , characterized in that the elastomer layer (4) has a matrix material made of ethylene propylene diene rubber. Plain bearing bush according to one of the Claims 1 or 2 , characterized in that the elastomer layer (4) contains crosslinking agents from the group of peroxides, amines and / or bisphenols. Plain bearing bush according to one of the Claims 1 until 3 , characterized in that the elastomer layer (4) has reinforcing fibers. Plain bearing bush according to one of the Claims 1 until 4th , characterized in that between the base layer (2) and the sliding layer (8) at least one intermediate layer (6) made of the base layer material is arranged. Plain bearing bush Claim 5 , characterized in that the intermediate layer (6) is arranged between the elastomer layer (4) and the sliding layer (8). Plain bearing bush according to one of the Claims 1 until 6th , characterized in that a periodically structured multilayer system (10) is arranged between the base layer (2) and the sliding layer (8), in which the periodicity (12) consists of at least two individual layers, one individual layer consisting of an elastomer layer (4) and a single layer consists of an intermediate layer (6) made of the base layer material. Plain bearing bush according to one of the Claims 1 until 7th , characterized in that the thickness D _{2 of} the elastomer layer (4) is 0.2 mm to 200 mm. Plain bearing bush according to one of the Claims 1 until 8th , characterized in that the thickness D _{4 of} the sliding layer (8) is 0.5 mm to 300 mm. Plain bearing bush according to one of the Claims 1 until 9 , characterized in that the thickness D _{1 of} the base layer (2) is 1 mm to 300 mm. Plain bearing bush according to one of the Claims 1 until 10 , characterized in that the thickness D _{3 of} the intermediate layer is 0.5 mm to 100 mm. Plain bearing bush according to one of the Claims 1 until 11 , 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 bushing (1) with at least the following process steps, which are carried out one after the other: a) producing a sliding layer (8) from a sliding layer material, b) producing an elastomer layer (4) by sheathing the sliding layer (8) with a plastic one Elastomer material, c) production of a support layer (2) by sheathing the elastomer layer (4) with a support layer material, d) heat treatment of the layer system produced with process 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 of the plain bearing bush to final dimensions. Procedure according to Claim 13 , characterized in that according to method step a) at least one plastic thread impregnated with epoxy resin is wound onto a winding core. Procedure according to Claim 13 or 14th , characterized in that according to method step c) at least one glass fiber thread impregnated with epoxy resin and / or a carbon thread impregnated with epoxy resin is wound onto the plastic elastomer material of the elastomer layer (4). Method according to one of the Claims 13 until 15th , characterized in that the first heat treatment according to process step d) is carried out at a temperature T ₁ of 80 ° C to 100 ° C. Method according to one of the Claims 13 until 16 , characterized in that the first heat treatment process according to process step d) is carried out over a period of 10 to 180 minutes. Method according to one of the Claims 13 until 17th , characterized in that the second heat treatment according to method step e) is carried out at a temperature T ₂ in the range from 120 ° C to 160 ° C. Method according to one of the Claims 13 until 18th , characterized in that the second heat treatment according to process step e) is carried out over a period of 0.5 to 20 hours. Method according to one of the Claims 13 until 19th , characterized in that according to method step c) the glass fiber thread and / or carbon thread is wound onto the underlying layer with a thread tension of 5 N to 1000 N. Method according to one of the Claims 13 until 20th , characterized in that the plastic elastomer material is wrapped airtight in process step c). Method according to one of the Claims 13 until 21 , characterized in that between process steps a) and c) instead of process step b), process steps a1) and b1) are carried out at least once with a1) production of an intermediate layer (6) with base layer material and b1) production of an elastomer layer (4) with a plastic elastomer material.

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