DE102013226749A1 - Sliding bearing and method for producing a component with a sliding surface for a plain bearing - Google Patents

Abstract

Embodiments relate to a plain bearing (1). The sliding bearing (1) comprises a first component (2) with a plastic sliding layer. Furthermore, the plain bearing (1) has a second component (4). This is movable relative to the first component (2). The second component (4) has a nickel-containing layer (5). The nickel-containing layer (5) forms a sliding surface of the second component (4), which faces the sliding surface of the first component (2).

Description

Embodiments relate to a sliding bearing with a first component and a second component and a method for producing a component having a sliding surface for a plain bearing.

Slide bearings are used in a variety of applications for moving bearing of element to each other. For example, with a plain bearing a shaft can be rotatably mounted to a housing. Furthermore, a slide can be mounted movably with respect to a linear guide with a sliding bearing. An example of a plain bearing is also a spherical plain bearing. Spherical bearings are also used in a variety of applications for the movable storage of different elements.

In many applications for sliding and spherical plain bearings, corrosion protection is required. Conventional corrosion protected plain bearings are often made of stainless steels. An example of a stainless steel is the material X46Cr13. Conventional plain bearings may also have a sliding layer. The stainless steels used make the production of conventional plain bearings relatively complex.

Furthermore, other conventional plain bearings are made without explicit corrosion protection from a so-called. Standard rolling bearing steel. For example, can be used as bearing steel 100Cr6. In some of these standard plain bearings, an inner ring sphere surface forming the sliding surface is provided with a hard chrome layer. This can be a few microns thick. The coating with the hard chrome layer can serve in some conventional sliding bearings to improve the wear protection in a sliding contact.

Furthermore, other conventional plain bearings, for example, for customer-specific applications, known in which a higher corrosion protection or longer corrosion protection times are required. To effect this corrosion protection, different coatings can be applied to the slide bearing rings. In some of these plain bearings are selected as coating materials zinc (Zn), zinc-nickel (Zn-NiP), zinc-iron or chemical nickel (NiP). Furthermore, the coating should also withstand the stresses of a sliding contact. In order to make this possible, in the case of conventional slide bearings, the layers mentioned in the area of the sliding surface are provided with an additional hard chrome layer. The hard chrome layer thus forms the sliding surface. The coating should therefore offer a certain degree of wear protection.

For this reason, even with some conventional spherical bearings, the sphere surface will be provided with the hard chrome layer. These are in particular so-called standard bearing sliding pairs PTFE fabric / hard chrome. With these conventional standard bearing sliding pairings, it is possible, for example, to achieve a mileage of 10 km under a load with a P · v value of 5 MPa · m / s.

For marine or seawater applications, other conventional spherical plain bearings use very material-intensive and therefore expensive, highly corrosion-resistant steels (eg X30CrMon15 1 or VC444) as ring material. In addition, in conventional solutions, the inner ring sphere is usually provided with a hard chrome layer as the sliding surface. This should minimize or avoid excessive wear. The hard chrome layer may be a few microns thick.

This makes corrosion-resistant spherical plain bearings, both for maritime and non-maritime applications, relatively material-intensive and expensive to manufacture. This is also the case with some other corrosion-resistant plain bearings or plain bearings.

There is therefore a need to provide an improved concept for a sliding bearing that allows a good compromise between corrosion resistance of a sliding bearing and simplified manufacture of the sliding bearing. This need is taken into account by a plain bearing and a method for producing a component with a sliding surface for a plain bearing according to the independent claims.

Embodiments relate to a plain bearing. The sliding bearing comprises a first component with a plastic sliding layer. Furthermore, the sliding bearing comprises a second component, which is movable relative to the first component. The second component has a nickel-containing layer. The nickel-containing layer forms at least one sliding surface of the second component. The sliding surface of the second component faces the sliding surface of the first component.

Due to the fact that the nickel-containing layer forms the sliding surface of the second component, it can be achieved in some embodiments that the second component of the sliding bearing is corrosion-resistant on the one hand and in a simple manner, without further use of other corrosion-resistant, possibly more expensive, or more elaborate materials, can be produced. In other words, the nickel-containing layer is located on the surface of the second component and is not covered by another layer at least in the region of the sliding surface. The Plastic sliding layer of the first component may optionally comprise a polymer, a composite material, a polymer composite, a thermoplastic, a thermosetting plastic and / or the like. Furthermore, a lubricant can be incorporated in the plastic sliding layer. Thus, in some embodiments, the sliding bearing may be designed as a maintenance-free bearing in which, for example, no relubrication is required. In some embodiments, lubrication with grease or a lubricant may be eliminated. For example, the plastic sliding layer may be attached to the first component. The nickel-containing layer, which is the sliding surface of the second component, then slides on the polymer layer of the first component.

In some other embodiments, the second component is completely coated on its entire surface with the nickel-containing layer. As a result, in some embodiments it can be achieved that the second component has the corrosion-resistant property over its entire surface. Furthermore, the second component could be produced in a simple manner, because, if necessary, no special areas must be left out during the coating. In some other embodiments, the nickel-containing layer may be formed only in a portion of the component that forms the sliding surface.

In some other embodiments, the nickel-containing layer is chromium-free (eg, chromium-IV-free). Thus, in some embodiments it is possible to dispense with chromium for the production of the nickel-containing layer. For example, it may be possible to comply with required environmental guidelines or operating conditions for the processing of chromium. In other words, the sliding surface of the inner ring contains no chromium and is not a hard chrome layer.

In some other embodiments, the nickel-containing layer has a phosphorus content that is within a range of values. For example, the range of values may have an initial value and an end value. The initial value and / or the final value may be 2%, 5%, 6%, 7%, 8%, 9%, 11%, 12%, 13%, 14%, 15% or 16%. Thus, in some embodiments, a sufficiently hard layer may be created that forms the sliding surface.

In some other embodiments, the nickel-containing layer has a thickness that is within a range of values. The value range has an initial value and a final value. The initial value and / or the final value may be 5 μm, 10 μm, 15 μm, 40 μm, 60 μm or 100 μm. Thus, in some embodiments, a nickel layer may be formed that has sufficient thickness and hardness to serve as a sliding layer. In this case, a thickness of the layer may be an extension of the layer in a radial direction. For example, the layer may have a uniform thickness over its entire extent. For example, the thickness may be the same thickness within the manufacturing or manufacturing tolerances.

In some other embodiments, the nickel-containing layer has at least a first and a second sub-layer. The second sub-layer covers the first sub-layer at least partially. The second partial layer forms the sliding surface of the second component. As a result, in some embodiments, a particularly stable layer can be produced. The second sub-layer may have a phosphorus content which is within a range of values. A start and / or end value of the range of values may be 3%, 5%, 7%, 9% or 10%. For example, the first sub-layer may have a phosphorus content that is in a range of values that may have an initial value and / or a final value that is 5%, 8%, 10%, 12%, 14% or 16%. In some embodiments, this plain bearing can be used for dry applications. For example, dry applications may not be maritime applications. The plain bearing can therefore be exposed in some applications, no sea or salt water. In some embodiments, the first partial layer fulfills the function of corrosion protection. Furthermore, in some embodiments, the second partial layer has the function of wear protection for the first partial layer. In some embodiments, the nickel-containing layer may include further sub-layers (eg, multilayer, "multilayer").

In some other embodiments, at least one of the sublayers has a thickness that is within a range of values. An initial value and / or a final value of the value range may be 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm or 40 μm. Thus, in some embodiments, a sufficiently stable protective layer can be formed, which can ensure the required corrosion and wear protection. For example, both partial layers can have the same thickness.

In some other embodiments, the second component is partially made of steel. Thus it could be made possible that the second component consists of a relatively inexpensive base material or conventional steel rings can be used.

In some other embodiments, the first component also has a coating. As a result, in some embodiments, the first component can also be given a corrosion protection or a certain corrosion resistance. As a result, in some embodiments, the entire plain bearing have corrosion protection. For example, a coating of the first component may be formed as a single layer. The single-layer coating of the first component may be a high-phosphorous nickel-phosphorus coating. For example, this may have a thickness of 5 .mu.m to 100 .mu.m. For example, the coating of the first component can be produced without subsequently connecting a tempering process.

In some other embodiments, the first component may include a zinc-nickel (Zn-Ni) coating. For example, the zinc-nickel coating may have a thickness between 3 μm and 30 μm. Optionally, the zinc-nickel layer can be passivated. Additionally or alternatively, the zinc-nickel layer may be provided with an overcoat. For example, the overlayer (eg topcoat of "top coat") may have a thickness between 3 μm and 15 μm.

In some other embodiments, the sliding bearing is a spherical plain bearing. For example, the first component may be an outer ring. For example, the second component may be an inner ring.

Some embodiments relate to a method for producing a component with a sliding surface for a plain bearing. The method provides a steel body. Further, a nickel-containing layer is deposited on a surface of the steel base body. The nickel-containing layer forms the sliding surface of the component. Thus, a corrosion-resistant component with a sliding surface for a plain bearing could be produced in a simple manner. For example, the deposition of the nickel-containing layer can be carried out by autocatalysis. Thus, in some embodiments, a uniform layer with good surface properties can be produced.

In some other embodiments, a first sub-layer is deposited as a base layer to deposit the nickel-containing layer that forms the sliding surface. Further, a second sub-layer is then deposited. Thus, in some embodiments, a layer having improved mechanical properties such as higher wear resistance could be produced. For example, the different layers may have different phosphorus or nickel contents and / or thicknesses. For example, the deposition of the sublayers can also take place autocatalytically.

In some other embodiments, after depositing the nickel-containing layer, the layer is annealed. Thereby, in some embodiments, the property of the nickel-containing layer with respect to adhesion and wear resistance can be improved. For example, the nickel-containing layer or component with the annealing layer may be exposed to a temperature between 200 ° C and 400 ° C for a period of between 2 to 6 hours. For example, the layer or the component with the layer can also be exposed to a temperature of 200 ° C. to 300 ° C. for a period of time between 2 and 4 hours.

Embodiments relate to a use of a sliding bearing according to at least one embodiment, wherein the sliding surface of the second component is at least partially in contact with water. Thus, in some embodiments, an application of the convoy bearing can be extended.

Further advantageous embodiments are described in more detail below, based on exemplary embodiments illustrated in the drawings, to which exemplary embodiments are not restricted.

Thus, the figures show schematically the following views.

1 shows a schematic representation of a side view of a sliding bearing according to an embodiment;

2 shows a schematic representation of a side view of the sliding bearing of 1 ;

3 shows a schematic representation of a side view of a sliding bearing according to another embodiment;

4 shows a schematic representation of a method for producing a component having a sliding surface for a sliding bearing according to an embodiment.

In the following description of the accompanying drawings, like reference characters designate like or similar components. Further, summary reference numbers are used for components and objects that occur multiple times in one embodiment or in one representation, but are described together in terms of one or more features. Components or objects which are described by the same or by the same reference numerals may be the same, but possibly also with regard to individual, several or all features, for example their dimensions be executed differently, unless something else explicitly or implicitly results from the description.

1 shows a schematic representation of a side view of a sliding bearing according to an embodiment.

As in 1 shown, includes a sliding bearing 1 a first component 2 with a plastic sliding layer 3 , The plain bearing 1 has a second component 4 on. The second component 4 has a nickel-containing layer 5 , This is in 1 dashed and schematized shown. The nickel-containing layer 5 forms a sliding surface 6 of the second component 4 out. The sliding surface 6 is the sliding surface 3 of the first component 2 facing.

In the plain bearing 1 according to the embodiments of the 1 it is a joint stock. The first component 2 is an outer ring. The second component 4 is an inner ring. The inner ring as a second component 4 has an internal bore 7 on. This is arranged concentrically to a central axis M. In the inner bore 7 can be recorded a wave, not shown. The outer ring as the first component 2 has an outwardly facing lateral surface 8th on. The lateral surface 8th may serve in some slide bearings for inclusion in a housing, not shown.

2 shows a schematic representation of a side view of the sliding bearing of 1 ,

As in 2 recognizable, is the sliding surface 6 of the inner ring as a second component 4 arched radially outward. In other words, the sliding surface is 6 spherically formed. The plastic sliding surface of the outer ring as the first component 2 is correspondingly spherical, so also curved radially outward.

The plain bearing 1 is a so-called coated plain bearing. The plastic sliding layer 3 For example, it may include any material. For example, the plastic sliding layer 3 comprise a polymer. The plastic sliding layer 3 For example, it may be formed as a PTFE fabric slip layer (polytetrafluoroethylene fabric slip layer).

In the sliding bearing according to the embodiment of the 1 and 2 has the nickel-containing layer 5 of the second component 4 , a phosphorus content that is within a range of values. The initial value and / or the end value may be 5%, 6%, 7%, 8%, 9%, 11%, 12%, 13%, 14%, 15% or 16%. Furthermore, the nickel-containing layer 5 in the embodiment of the 1 and 2 a layer thickness between 5 .mu.m and 100 .mu.m or between 15 .mu.m and 60 .mu.m. The layer 5 has over its entire extent a thickness that is equal within the scope of possible manufacturing tolerances. In this case, a thickness can be the extent of the layer 5 be in a radial direction.

The plain bearing 1 according to the embodiment of 1 and 2 For example, for maritime applications where the plain bearing 1 with salt, sea or sea water, comes into contact, are suitable. In the joint bearing of 1 and 2 So it was a joint or plain bearings, which can be used even with strong to very strong corrosion stress.

The nickel-containing layer 5 in the embodiment of the 1 and 2 is a direct order, autocatalytically deposited nickel-phosphorus alloy coating (Chemical Nickel, NiP). In other words, the coating is not deposited in an electrolytic process. A phosphorus content of the layer 5 For example, depending on a manufacturing process of the layer 5 be dependent. In some cases, the phosphorus content may be dependent upon a condition or age of the bath in which the deposition occurs. Further, other manufacturing factors may have an influence on the phosphorus content. Due to the fact that the nickel-containing layer 5 autocatalytically deposited may, in some embodiments, form a uniform layer 5 be generated. For example, the layer 5 be very uniform in thickness and / or in their surface property. Thereby, in some embodiments, the sliding contact may be formed with a higher or more uniform conformity. For example, a more uniform layer distribution could be achieved in comparison to a hard chrome plating of the sliding surfaces. As a result, edge effects can be reduced and / or even avoided in some embodiments in an operation of the sliding bearing.

In some other embodiments, not shown, the nickel-containing layer may be produced in any manner or deposited on the second component.

In the embodiment of the 1 and 2 is a basic material of the second component 4 Stole. For example, the steel may be a tempering steel, e.g. B. bearing steel 100Cr6 (material number 1.3505) act. The steel can be used, for example, uncured or hardened as a base material.

The output surface of the first component to be coated 4 , So the surface of a steel body can be different Have topography states or surface properties. For example, the surface may have a surface roughness value (Ra) of between 0.04 μm to 0.60 μm. For example, in some embodiments, a surface roughness value (Ra) of the second component 4 between 0.06 μm and 0.20 μm are present. If necessary, machining methods such as grinding, turning or honing can be used.

Furthermore, in some embodiments, before coating, the surface of the component 4 to which the layer 5 is applied, cleaned. For example, the surface can be cleaned conventionally or electrolytically. This could, for example, a better adhesion of the nickel-containing layer 5 be effected on the surface. In embodiments in which the risk of hydrogen embrittlement may occur, for example, a degreasing can take place as a cleaning. This can be done for example by hand. The risk of hydrogen embrittlement can occur, for example, at layer thicknesses at an upper specification limit, for example 100 μm.

To provide adequate corrosion protection for the second component 4 To effect, in some embodiments, a surface of the component is completely with the nickel-containing layer 5 coated. For example, an entire surface of the inner ring as a second component 4 with the nickel-containing layer 5 be covered.

In some other embodiments, not shown, and the first component 2 have a coating. This can be the case with some second components 4 also, cause corrosion protection. For example, this coating can be analogous to the nickel-containing layer 5 be educated. Additionally or alternatively, the first component 2 or the outer ring also obtained a different anti-corrosion coating.

In other words, in some embodiments, a protection against a strong to very strong corrosion stress as well as a required wear protection can be achieved by coating the inner and outer ring of the spherical plain bearing on all sides. The wear protection can be important especially in a region of the sliding surface of the inner ring, on which a mechanical load due to the sliding of the outer ring is formed.

With the described nickel-containing layer 5 may in some embodiments a sliding surface 6 for the inner ring as a second component 4 be provided, which makes it possible that the usual conventional inner rings hard chrome plating the Innenringgleitfläche can be omitted. The formation of the sliding surface 6 of the inner ring as a nickel-containing layer 5 In some embodiments, it may not result in increased wear over spherical bearings having a hard chrome layer.

To the wear resistance, adhesion and / or hardness of the nickel-containing layer 5 To increase, in some embodiments, after the coating, an annealing process can be followed. This can be the layer 5 be exposed to a temperature between 200 ° C and 400 ° C, for example, for a period of between two and six hours. In some other embodiments, the layer is exposed to a temperature between 200 ° C and 300 ° C for a period between two and four hours.

In other words, with the plain bearing 1 a cost-effective, all-round corrosion-protected and possibly maintenance-free spherical plain bearings are provided. This may for example have a polymer lubrication. The polymer lubrication may be formed, for example, as a PTFE sliding fabric. Thus, the joint bearing can be operated under certain circumstances lubrication-free. The joint bearing of the 1 In some cases, for example, it can be suitable for maritime applications in which so-called seawater lubrication can occur. In seawater lubrication, the plain bearing can come into contact with salt or sea water. For example, in some embodiments of the sliding bearing 1 in a salt spray test (eg DIN EN ISO 9227: 2012 ) a running time of at least 216 hours without red rust can be achieved. By the formation of the sliding surface 6 as a nickel-containing layer 5 So could possibly the same or similar mileage as in comparable spherical bearings, a hard chrome plating as a sliding surface 6 have to be achieved. As a result, the hard chrome plating of the sliding surface 6 may be omitted, for example, a contribution to environmental protection, a material and thus a cost savings in the production of the joint bearing or other bearings could be made possible. Furthermore, in some embodiments, the use of expensive, stainless steels (stainless steels) can be dispensed with. The plain bearing can therefore be produced in a simple manner. Because of that, the plain bearing 1 the nickel-containing layer 5 has, in some embodiments, the bearing function is not adversely affected. The life of the plain bearing 1 despite the lack of hard chrome layer may have a similar level, such as sliding bearings, which have the hard chrome layer. An internal sliding contact can in some embodiments by the nickel-containing layer 5 be protected against corrosion. All corrosion-endangered components of the sliding bearing may possibly be replaced by a special corrosion layer, the nickel layer 5 , z. B. be provided with chemical nickel.

Basically, a plain bearing according to the embodiments of the 1 and 2 be used in all application areas. However, it is also suitable for all applications in which it is exposed to a strong to very strong corrosion stress. For example, any type of plain bearing may include the first component and the second component. In some embodiments, the first component may be a bushing, a plain bearing bushing, a jointed bearing ring, a slide or a rail of a sliding guide. Furthermore, the first component and the second component can also be an element of a linear guide.

3 shows a schematic representation of a side view of a sliding bearing according to another embodiment.

An in 3 shown slide bearing 11 is essentially analogous to the plain bearing 1 educated. The plain bearing 11 also includes an outer ring as the first component 12 with a plastic sliding layer 13 and an inner ring as a second component 14 with a sliding surface 16 , The outer ring has a lateral surface 18 for mounting in a housing. The inner ring 14 has an internal bore 17 for receiving a wave. In the plain bearing 11 it can also be a universal corrosion-protected, maintenance-free spherical plain bearings. This can be polymer-lubricated. The plain bearing 11 has an inner, not shown sliding contact ( 13 . 16 ) on. The plastic sliding layer is, for example, on a radially inwardly facing surface of the first component 12 attached.

For this, the plastic sliding layer 13 analogous to the sliding layer of the embodiment of 1 and 2 be educated.

Possible areas of application of the sliding bearing 11 can be applications where the plain bearing 11 for example, has no permanent contact with water (eg fresh or salt water).

A difference between the plain bearing 11 opposite the plain bearing 1 lies in the formation of the nickel-containing layer 15 , The nickel-containing layer 15 is located in the region of the sliding surface of the second component or forms this. The layer 15 is chromium-free. The nickel-containing layer 15 of the plain bearing 11 is in a first sub-layer 19 and a second sub-layer 20 divided. At the first sub-layer 19 it is a base layer. This is directly on a surface of a base body of the second component 14 applied. The second sub-layer 20 is above the first sublayer 19 , viewed from the main body of the second component, arranged. In the embodiment of the 3 has the first sublayer 19 a layer thickness between 5 microns and 40 microns and a phosphorus content between 8% to 14%. In the embodiment of the 3 has the second sublayer 20 a layer thickness between 5 microns and 40 microns and a phosphorus content between 3% and 9%.

In further, not shown embodiments, the first sub-layer may have a thickness of 5 microns and 70 microns. Further, the first sub-layer may have a phosphorus content between 5% to 16%. The second sub-layer may have a layer thickness of 5 microns to 70 microns. Furthermore, the second sub-layer may have a phosphorus content between 3% and 10%.

Both the first sub-layer 19 as well as the second sub-layer 20 may have been sequentially autocatalytically deposited on the base body. In other words, in the case of the nickel-containing layer 15 to act an autocatalytically deposited nickel-phosphorus alloy coating (chemical nickel NiP). The nickel-containing layer 15 may be formed as a so-called. Mulitlayer coating. This may comprise a base layer and a cover layer. In some embodiments, a major function of the first sub-layer may be 19 be a corrosion protection. Further, in these embodiments, a major function of the second sub-layer may be wear protection. Thus, an increased corrosion protection could be achieved with simultaneous wear protection.

The adjustment of the phosphorus content of the partial layers 19 and 20 may depend on various manufacturing factors, such as a bath condition, age of the solution, etc.

In some other embodiments, after autocatalytic deposition of the nickel-containing layer 15 or the double layer annealed the double layer. Under certain circumstances, this can lead to a further improvement of the coating properties with regard to adhesion and wear resistance. In some other embodiments, the nickel-containing layer becomes 15 not tempered.

The basic material of the second component 14 can that of the second component 4 correspond. In further embodiments, not shown, another base material for the inner ring can be selected.

The second component 14 can over its entire peripheral surface, the nickel-containing layer 15 or the first sub-layer 19 and the second sub-layer 20 exhibit. As a result, in some embodiments, the second component 14 be coated with an autocatalytic process in a simple manner. Furthermore, the component receives 14 on its entire surface the layer 15 , So can the layer 15 easily applied in some embodiments. Furthermore, the second component 14 in some embodiments so obtained on its entire contact surface corrosion protection.

The first component 12 can in the embodiment of 3 also have a coating, not shown. For example, the coating, not shown, of the outer ring 12 be formed as a single-layer hochphosphorige nickel layer. This can for example have a phosphorus content between 10% and 15%. For example, the coating of the second component 14 have a thickness between 5 microns and 100 microns. For example, the coating of the second component 12 be deposited also autocatalytically. For example, the coating of the second component 12 without tempering have sufficient strength and durability.

In some other embodiments, the coating of the second component may also be tempered after application.

Additionally or alternatively, the first component 12 as a coating, a zinc-nickel layer (ZnNi layer) have. This may for example have a thickness between 3 microns and 30 microns. For example, the layer may be passivated or not passivated. Furthermore, the zinc-nickel layer can be provided with a coating (eg top-coat). For example, this overlayer may have a thickness of 3 μm to 15 μm. In some embodiments, the overlayer is also passivated.

In other words, with the plain bearing 11 a maintenance-free spherical plain bearing that is polymer lubricated be provided. This may be completely protected against corrosion in some embodiments. For example, a tribological sliding contact, so the sliding surface 16 be protected against corrosion. In addition to the increased corrosion protection could possibly on a hard chrome plating of the counter sliding surface 16 , So, for example, the sphere of the inner ring, be dispensed with. For example, with the joint bearing in a salt spray test (eg: DIN EN ISO 9227: 2006 ) a running time of 168 hours without red rust can be achieved. Thus, the plain bearing could be suitable for all possible applications with moderate corrosion requirements, for example under non-maritime conditions.

Because no hard chrome plating is required, on the one hand a lower material usage and thus a cost saving and a contribution to environmental protection could be made possible. Since it is also possible to dispense with the use of expensive corrosion-resistant steels (stainless steels), the spherical plain bearing could be manufactured in a simple manner. Despite the fact that there is no hard chrome layer, the slide bearing could achieve a similar mileage and service life as hard chromed sliding surfaces. The bearing function could therefore not be affected by the chrome-free training.

Further, in some embodiments, more uniform sliding surfaces can be created compared to hard chromed sliding surfaces. For example, there could be less variation in the shape of the sliding surface (eg sphere) passing through the layer 15 is formed, be effected. This may be possible, for example, because with the nickel coating a more uniform layer distribution can be effected. This could minimize edge effects when sliding the sliding surfaces towards each other.

In some other embodiments, the nickel-containing layer may also be applied to a component of another collision bearing. For example, the layer may have the same properties in terms of thickness and composition as the layer 12 exhibit.

4 shows a schematic representation of a method for producing a component having a sliding surface for a sliding bearing according to an embodiment.

As in 4 is shown in a procedure 30 for producing a component for a sliding bearing in a first operation 31 a base body provided. In another process 32 For example, a nickel-containing layer is deposited on a surface of the base body, wherein the nickel-containing layer forms the sliding surface of the base body.

The main body may comprise steel as the material. For example, the main body may be a steel ring.

In some other embodiments, a first sub-layer is deposited as a base layer to deposit the nickel-containing layer that forms the sliding surface. On this then a second sub-layer, which forms the sliding surface, deposited.

Subsequently, the nickel-containing layer can be subjected to a tempering process. As a result, for example, an adhesion or the mechanical properties, for example the wear resistance, of the layer could be increased.

The embodiments disclosed in the foregoing description, the appended claims and the appended figures, as well as their individual features, may be relevant and implemented both individually and in any combination for the realization of an embodiment in its various forms.

LIST OF REFERENCE NUMBERS

1

bearings

2

first component

3

Plastic sliding layer

4

second component

5

nickel-containing layer

6

sliding surface

7

internal bore

8th

lateral surface

11

bearings

12

first component

13

Plastic sliding layer

14

second component

15

nickel-containing layer

16

sliding surface

17

internal bore

18

coat

19

first sub-layer

20

second sub-layer

30

method

31

Provide

32

secrete

M

axis of rotation

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 non-patent literature

• DIN EN ISO 9227: 2012 [0051]
• DIN EN ISO 9227: 2006 [0067]

Claims (10)

Bearings ( 1 . 11 ) having the following features: a first component ( 2 . 12 ) with a plastic sliding layer ( 3 . 13 ); and a second component ( 4 . 14 ), which is relative to the first component ( 2 . 12 ), wherein the second component comprises a nickel-containing layer ( 5 . 15 ), wherein the nickel-containing layer ( 5 . 15 ) at least one sliding surface of the second component ( 4 . 14 ) forming the sliding layer of the first component ( 2 . 12 ) is facing. Bearings ( 1 . 11 ) according to claim 1, wherein the nickel-containing layer ( 5 . 15 ) is chromium free. Bearings ( 1 . 11 ) according to one of the preceding claims, wherein the nickel-containing layer ( 5 . 15 ) comprises a phosphorus content of 2% to 16%. Bearings ( 1 . 11 ) according to one of the preceding claims, wherein the nickel-containing layer ( 5 . 15 ) has a thickness of between 1 μm and 100 μm. Bearings ( 1 . 11 ) according to one of the preceding claims, wherein the nickel-containing layer ( 5 . 15 ) at least a first ( 19 ) and a second sublayer ( 20 ), wherein the second sub-layer ( 19 ) the first sub-layer ( 20 ) at least partially covers and forms the conduction surface of the first component, wherein the second sub-layer ( 20 ) comprises a phosphorus content of 3% to 10%. Bearings ( 1 . 11 ) according to claim 5, wherein each of the sublayers ( 19 . 20 ) has a thickness of between 1 μm and 50 μm. Bearings ( 1 . 11 ) according to one of the preceding claims, wherein the second component ( 4 . 14 ) consists partly of steel and / or on its entire surface the nickel-containing layer ( 5 . 15 ) having. Procedure ( 30 ) for producing a component ( 4 . 14 ) with a sliding surface ( 6 . 16 ) for a plain bearing ( 1 . 11 ), the method comprising: providing ( 31 ) of a basic component; Separating ( 32 ) a nickel-containing layer ( 6 . 16 ) on a surface of the base member, wherein the nickel-containing layer ( 6 . 16 ) the sliding surface of the component ( 4 . 14 ). The method of claim 8, wherein for depositing ( 32 ) the nickel-containing layer ( 6 . 16 ) a first sub-layer ( 19 ) is deposited as a base layer and then a second sub-layer ( 20 ), which forms the sliding surface, is deposited. Use of a sliding bearing according to one of claims 1 to 7, wherein the sliding surface of the second component ( 4 . 14 ) is at least partially in contact with water.

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