Storage arrangement with one storage unit and one element, element and assortment of elements

Abstract

The invention relates to a bearing arrangement with a bearing (10) and an element (12) which comprises polymer material and which either abuts a radial outer surface (14) of an outer ring (16) of the bearing and / or an end face (18) of the outer ring or abuts a radial inner surface (20) of an inner ring (22) of the bearing and / or an end face (24) of the inner ring, wherein the element is a ring with a wall thickness (26) of at least 0.5 millimeters. It is proposed that element (12) consists at least substantially of: Polycarbonate and / or liquid crystalline polyester and / or polybutylene terephthalate and / or polyphenylene sulfide and / or polyetherimide and / or polyethylene terephthalate and / or polytrimethylene terephthalate and / or polycyclohexylenedimethyl terephthalate and / or polysulfone and / or polyethersulfone and / or polyimide and / or epoxy resin and / or phenolic resin and / or novolak and / or fiber-reinforced polycarbonate and / or fiber-reinforced liquid crystalline polyester and / or fiber-reinforced polybutylene terephthalate and / or fiber-reinforced polyphenylene sulfide and / or fiber-reinforced polyetherimide and / or fiber-reinforced polyethylene terephthalate and / or fiber-reinforced polytrimethylene terephthalate and / or fiber-reinforced polycyclohexylenedimethyl terephthalate and / or fiber-reinforced polysulfone and / or fiber-reinforced polyethersulfone and / or fiber-reinforced polyimide and / or fiber-reinforced epoxy resin and / or fiber-reinforced phenolic resin and / or fiber-reinforced novolak.

Description

[0001] The invention relates to a bearing arrangement comprising a bearing and an element which consists at least substantially of fibre-reinforced polymer material, such an element and an assortment of such elements.

[0002] The use of heat-shrink tubing made of tetrafluoroethylene-hexafluoropropylene copolymer (FEP) or perfluoroalkoxy polymer (PFA) is already known in the art for mechanical reasons. The tubing is applied to the outer circumference of a bearing's outer ring and to the radial inner surface of a housing, ensuring that no housing wear occurs during operation with a clearance fit due to the slow movement of the outer ring in an aluminum housing. This also prevents noise and vibration. The heat-shrink tubing has a wall thickness of 0.1 mm to 0.3 mm and also has a limited electrical insulation effect.

[0003] Furthermore, a bearing overmolded with a ring made of fiber-reinforced polyamide is known.

[0004] Today, full electrical insulation in bearing applications is often achieved either with hybrid bearings containing non-conductive ceramic rollers or with plasma-sprayed aluminum oxide-based coatings, usually applied to the outer diameter. This type of coating is known as Insocoat. Hybrid bearings are very expensive. Plasma-sprayed aluminum oxide-based coatings are also expensive. To produce such coatings, a surface must be selectively roughened, followed by a plasma spray application to create a relatively thick aluminum oxide layer. The layer must then be machined to achieve the desired tolerances. Finally, the pores must be sealed to ensure the insulation values.

[0005] The boom in electric vehicles has brought with it a new challenge. Electrical insulation of bearings is necessary in mass production and where cost constraints exist, but the requirements are sometimes less stringent than in traditional high-voltage, high-current applications. Common approaches include the use of polymer-based insulating coatings or vulcanized layers as an alternative to aluminum oxide.

[0006] For example, a bearing ring with an insulating coating made of polyimide is known from the document DE 10 2020 201 509 A1.

[0007] Current technical approaches to providing electrically insulated bearings have several disadvantages besides the cost issue. If an insulating coating is applied to the outer surfaces of a bearing and the standard dimensions of the coated bearing remain unchanged, either the steel wall thickness has been reduced, for example, the ring thickness of the steel part has been reduced, or the internal geometry has been modified to accommodate a smaller roller or ball set. In both cases, the load-bearing capacity decreases. If an insulating coating is applied to a bearing with standard dimensions, the dimensions subsequently increase to a non-standard size. In addition, insulating coatings vary in material and thickness depending on the manufacturer and have different electrical characteristics.This limits the freedom of a vehicle or transmission manufacturer to choosing a roller or ball bearing supplier, as the insulating bearings vary depending on the manufacturer, either in load ratings, dimensions, or electrical characteristics. A further disadvantage is that solutions involving polymer overmolding, vulcanization, or bonding result in a steel-polymer composite material that cannot be separated and recycled, which contradicts future sustainability and resource conservation.

[0008] The object of the invention is, in particular, to provide efficient insulation for a bearing arrangement suitable for use in electric-drive vehicles. Efficient insulation is achieved in particular when the elements with an insulating function can be produced and assembled at acceptable manufacturing costs, the elements function with replaceable bearings of standard dimensions and standard load ratings, and they can be separated from the bearing so that they can either be recycled separately or reused with a new bearing. This object is achieved according to the invention by the features of patent claim 1 and by the features of patent claim 9, while advantageous embodiments and further developments of the invention can be found in the subclaims.

[0009] The invention is based on a bearing arrangement with a bearing and an element which comprises polymer material and which either bears against a radial outer surface of an outer ring of the bearing and / or against an end face of the outer ring or against a radial inner surface of an inner ring of the bearing and / or against an end face of the inner ring, wherein the element is a ring with a wall thickness of at least 0.5 millimeters,

[0010] It is proposed that the element consists at least essentially of: polycarbonate and / or liquid crystalline polyester and / or polybutylene terephthalate and / or polyphenylene sulfide and / or polyetherimide and / or polyethylene terephthalate and / or polytrimethylene terephthalate and / or polycyclohexylenedimethylene terephthalate and / or polysulfone and / or polyethersulfone and / or polyimide and / or epoxy resin and / or phenolic resin and / or novolak and / or fiber-reinforced polycarbonate and / or fiber-reinforced liquid crystalline polyester and / or fiber-reinforced polybutylene terephthalate and / or fiber-reinforced polyphenylene sulfide and / or fiber-reinforced polyetherimide and / or fiber-reinforced polyethylene terephthalate and / or fiber-reinforced polytrimethylene terephthalate and / or fiber-reinforced polycyclohexylenedimethylene terephthalate and / or fiber-reinforced polysulfone and / or fiber-reinforced polyethersulfone and / or fiber-reinforced polyimide and / or fiber-reinforcedEpoxy resin and / or fiber-reinforced phenolic resin and / or fiber-reinforced novolak. The term "element consisting at least "essentially" of one material should be understood in particular to mean that the element consists of at least 90 mass percent, preferably at least 97 mass percent, and particularly preferably entirely of the material. The term "element consisting at least "essentially" of several materials should be understood in particular to mean that the element consists of at least 90 mass percent, preferably at least 97 mass percent, and particularly preferably entirely of the materials. This makes it possible to provide efficient insulation for a bearing arrangement suitable for use in vehicles with electric drive. In particular, the element can cost-effectively prevent the flow of electrical current. In particular, the element can be removed from the bearing in a simple manner and without leaving any residue.which allows the element to be reused or easily recycled.

[0011] The above-mentioned fiber-reinforced materials are particularly preferably glass fiber reinforced.

[0012] In particular, the bearing can be a rolling bearing, for example a ball bearing.

[0013] In particular, the element can be selected by the plant, vehicle, or transmission manufacturer as a standard machine element and included in the new design for the corresponding bearing position to be insulated. The bearing position in question then consists of at least one element and the bearing, whereby the bearing is no longer a hybrid or isolation bearing, but a standard catalog bearing. The element can either be inserted into the bearing position and then equipped with a bearing, or it can be placed on top of the bearing and mounted together with it into the bearing position.

[0014] In particular, the polymer material can be a thermoplastic or thermosetting polymer. The selected material then typically possesses the properties expected of plastic cages for bearings, namely lubricant resistance, low water absorption, sufficient thermal stability, and good mechanical stability.

[0015] The wall thickness of the element is advantageously at least 1 mm and particularly preferably approximately 2.5 millimeters. The wall thickness of "approximately" 2.5 mm should be understood in particular to mean that the wall thickness deviates from 2.5 mm by no more than 20%, preferably by no more than 10%, and particularly preferably by no more than 3%. This allows for highly reliable electrical insulation combined with a relatively material-saving design. The greater material required for the element compared to a thin overmolding or foil coating is not only offset by its complete recyclability, but the greater wall thickness also allows for the choice of a more cost-effective polymer material with non-maximized insulation properties and better suitability for recycling.

[0016] Advantageously, the element is rigid at room temperature with a flexural modulus of at least 7 GPa according to ISO 178, which enables easy assembly and disassembly, disassembly for reuse when changing bearings, easy recycling and good electrical insulation.

[0017] The element is preferably made of a material that has a specific resistance of at least 10 19 µOhm·cm and / or a dielectric strength of at least 10 MV / m and / or a dielectric loss factor of maximum 0.07. This allows for very good electrical insulation.

[0018] Advantageously, the element has a permanent temperature resistance of at least 120°C, which may be required for use as a bearing arrangement with a bearing and an element made of fiber-reinforced polymer material in electric drive vehicles.

[0019] Advantageously, the element is made of a material that has a compressive or compression modulus of at least 6 GPa and / or a compressive strength of at least 120 MPa at a test temperature of 23°C. This allows for very good mechanical strength and dimensional stability of the element in the bearing arrangement under radial and / or axial compressive loads.

[0020] The element is preferably made of a material which has a toughness G of at least 0.2 kJ / m 2 and / or a ductility index of at least 0.1 µm. This allows the element in the bearing assembly to absorb high impact energy in the event of external impact loading, minimizing the risk of sudden brittle fracture of the element.

[0021] Furthermore, at a test temperature of 23°C, the element advantageously exhibits a maximum water absorption of 0.8% by weight within 24 hours according to ISO 62. This allows for very good electrical insulation as well as very good mechanical strength and dimensional stability of the element in the bearing arrangement, even over a long period of time.

[0022] Preferably, the fiber-reinforced polymers contained in the element have a maximum CO2 equivalent of 12 kg when manufactured in a primary production process without any recycled content. This allows the element to contribute to a reduction in CO2 emissions into the atmosphere compared to a volume equivalent to the element's volume filled by an aluminum or steel housing.

[0023] The bearing is advantageously a standard bearing. A "standard bearing" is understood in particular to mean a bearing that has a standardized outer diameter and / or a standardized circumference and / or a standardized bore diameter and / or a standardized radial extension length of an outer ring end face and / or a standardized radial extension length of an inner ring end face. This allows for high efficiency and flexibility. In particular, a cost-effective design of the bearing and easy interchangeability of the bearing can be achieved because the bearing can be purchased from various manufacturers. A standardized standard bearing also has the advantage that its manufacture follows optimized mass production processes, which offer maximum cost efficiency.While insulated bearings have to be manufactured using different production processes and additional work steps and therefore always represent a high cost factor, the combination of a standard bearing and an insulating element that is also injection-molded in simple mass production leads to a cost minimization of the entire bearing.

[0024] Preferably, the element consists at least substantially of fiber-reinforced and filled polymer material. This allows a long service life together with good electrical insulation to be achieved. In particular, the fiber reinforcement and / or filling can use electrically non-conductive fibers and / or additives and can in particular prevent or at least significantly reduce creep under load. In particular, it is possible to change a coefficient of friction of the element using such fillers. In particular, it is possible to reduce the coefficient of friction of the element and the wear behavior of a mating surface of the element in order to reduce wear due to ring creep or bearing creep in the case of a clearance fit selected for assembly reasons, for example between a bearing and an aluminum gearbox housing. In particular, the element can contain fluoropolymers such as PTFE and / or other dry lubricants such asMolybdenum disulfide or graphite or talc, which can reduce friction.

[0025] Inorganic fibers such as glass fibers and / or basalt fibers and / or ceramic fibers (e.g. made of aluminum oxide, silicon nitride, silicon carbide) in different fiber lengths and diameters can be used as electrically non-conductive reinforcing fibers of the element.

[0026] Organic plastic fibers with a temperature resistance of at least 120°C, such as aramid fibers and / or polyamide fibers and / or polyamideimide fibers and / or polypropylene fibers and / or polyacrylonitrile fibers and / or polyether ketone fibers and / or polyether ether ketone fibers and / or polyether ketone ketone fibers and / or polytetrafluoroethylene fibers and / or polycarbonate fibers and / or liquid crystalline polyester fibers and / or polybutylene terephthalate fibers and / or polyphenylene sulfide fibers and / or polyetherimide fibers and / or polyethylene terephthalate fibers and / or polytrimethylene terephthalate fibers and / or polycyclohexylenedimethylene terephthalate fibers and / or polysulfone fibers and / or polyethersulfone fibers and / or polyimide fibers can also be used.

[0027] Organic natural fibers such as cotton, cellulose, flax, jute, hemp or sisal can also be used as reinforcing fibers of the element.

[0028] Mixtures of inorganic reinforcing fibres and organic reinforcing fibres and additives in any proportion by weight may also be used to manufacture the element, so that the element consists at least substantially of fibre-reinforced polymer material.

[0029] To increase the compressive strength and creep resistance of the element under radial and / or axial bearing loads, the use of reinforcing fibers with fiber lengths greater than or equal to 5 mm has proven particularly advantageous. For low radial and / or axial bearing loads, fiber lengths less than 5 mm can be used to achieve a cost-effective design.

[0030] In particular, the fiber diameters of the fibers used can be predetermined by the manufacturing process of the respective fiber type. In particular, the fiber diameters of the fibers used can be freely selectable.

[0031] The fiber content of the fiber-reinforced polymer material can be between 0% by weight and 90% by weight, advantageously between 20% by weight and 70% by weight, particularly advantageously between 30% by weight and 60% by weight.

[0032] In particular, the element can contain electrically non-conductive hard materials such as kaolin or mica, preferably in spherical, platelet, needle, or chip form, thereby achieving a friction-increasing and simultaneously hardening effect. The spherical shape can not only reduce counterface wear but also reduce injection molding tool wear.

[0033] In particular, the electrically non-conductive organic and inorganic fibers as well as all other fillers can additionally and advantageously be coated with a suitable adhesion promoter, e.g. in the form of silanes, in order to achieve a better bonding of the fibers and fillers to the polymer matrix of the element.

[0034] The element is preferably manufactured using the cost-effective injection molding process. However, the element can also be initially manufactured as a semi-finished product in the form of a tube using the extrusion process and then converted into its final ring shape by machining, such as cutting to length and turning, and / or milling and / or grinding.

[0035] It is also proposed that the element be L-shaped in axial section. This allows a radial inner surface or a radial outer surface of a bearing ring to be electrically insulated simultaneously with an end face of the bearing ring.

[0036] The bearing arrangement advantageously comprises at least one further ring with a wall thickness of at least 0.5 millimeters, which is arranged adjacent to the ring with respect to an axial direction of the bearing and consists at least substantially of fiber-reinforced, particularly preferably glass-fiber-reinforced, polymer material or at least substantially of polymer material, and which either bears against the radial outer surface of the outer ring of the bearing and / or the end face of the outer ring, or bears against the radial inner surface of the inner ring of the bearing and / or the end face of the inner ring. This allows for insulation of the bearing on several sides, which can be easily installed.

[0037] Advantageously, the element, particularly in a fully installed state such as in an electric vehicle during operation, has an apparent impedance of at least 80 ohms and preferably at least 100 ohms at a frequency of 1 MHz, wherein a phase shift angle of an impedance of the element can be between 0° and 90°. This allows good electrical insulation to be achieved. In particular, the bearing arrangement can have a conductive connection between the outer ring and the inner ring, for example via a brush. This allows raceways and rolling elements to be protected from damage caused by the flow of electrical currents that are otherwise difficult to suppress.

[0038] In particular, the ring and the additional ring can have an identical outer diameter. Preferably, the ring and the additional ring are structurally identical, which makes them particularly cost-effective to manufacture.

[0039] In particular, the element can be sintered.

[0040] In particular, the element can have a hardness of more than 78 Shore A or more than 98 Shore A, which can also have a positive effect on electrical insulation.

[0041] In particular, the element can be attached to a bearing ring of the bearing by a press fit.

[0042] In particular, the element may be free of through holes except for a central hole.

[0043] In particular, the element may bear against an entire radial outer surface of the outer ring or against an entire radial inner surface of the inner ring or against an entire half of the outer surface of the outer ring or against an entire half of the inner surface of the inner ring.

[0044] Furthermore, an electric-drive vehicle is proposed, which has the bearing arrangement. In particular, the bearing arrangement can support a motor shaft of an electric motor at one end which is opposite the end of the motor shaft at which a drive of the motor is transmitted from the motor shaft to other components, wherein the motor at least contributes to the drive of the vehicle. In particular, the bearing arrangement can instead rotatably support the motor shaft at a different location. In particular, the bearing arrangement can support a shaft to which torque is transmitted directly from the motor shaft or by means of one or more components that are different from shafts.

[0045] Furthermore, an element, in particular as described above, is proposed which comprises polymer material and which can be connected to a bearing ring of a bearing by a press fit, a clearance fit, or a transition fit and / or can be arranged on the bearing ring such that the element contacts an entire region of an end face of the bearing ring or segments of the entire region and the region extends continuously over 360° around a central axis of the bearing, wherein the element has a wall thickness of at least 0.5 millimeters, wherein the element consists at least substantially of: polycarbonate and / or liquid-crystalline polyester and / or polybutylene terephthalate and / or polyphenylene sulfide and / or polyetherimide and / or polyethylene terephthalate and / or polytrimethylene terephthalate and / or polycyclohexylenedimethylene terephthalate and / or polysulfone and / or polyethersulfone and / or polyimide and / or epoxy resin and / or phenolic resinand / or novolak and / or fiber-reinforced polycarbonate and / or fiber-reinforced liquid-crystalline polyester and / or fiber-reinforced polybutylene terephthalate and / or fiber-reinforced polyphenylene sulfide and / or fiber-reinforced polyetherimide and / or fiber-reinforced polyethylene terephthalate and / or fiber-reinforced polytrimethylene terephthalate and / or fiber-reinforced polycyclohexylenedimethylene terephthalate and / or fiber-reinforced polysulfone and / or fiber-reinforced polyethersulfone and / or fiber-reinforced polyimide and / or fiber-reinforced epoxy resin and / or fiber-reinforced phenolic resin and / or fiber-reinforced novolak. This makes it possible to provide efficient insulation for a bearing assembly suitable for use in electric-powered vehicles. In particular, the element can cost-effectively prevent the flow of electrical current. In particular, the element can be removed from the bearing easily and without leaving any residuewhich allows the item to be reused or easily recycled.

[0046] In particular, the element can be glass fiber reinforced.

[0047] Advantageously, the wall thickness of the element is at least 1 mm and particularly preferably about 2.5 millimeters.

[0048] Furthermore, a range of elements is proposed, each of which is designed as described above. This allows a customer to solve a variety of insulation problems by purchasing a single product included in the range. In particular, at least some of the elements can have different dimensions. In particular, at least some of the elements can be adapted to standard bearings in terms of their dimensions.

[0049] Further advantages will become apparent from the following description of the drawings. The drawings illustrate exemplary embodiments of the invention. The drawings, the description, and the claims contain numerous features in combination. Those skilled in the art will also expediently consider the features individually and combine them into useful further combinations. Fig. 1 shows a half axial section through a bearing arrangement according to the invention with an element according to the invention, Fig. 2 shows a half axial section through a second bearing arrangement according to the invention with a single element according to the invention, Fig. 3 shows a half axial section through a third bearing arrangement according to the invention with a single element according to the invention which does not bear against any end face, Fig. 4 shows a half axial section through a fourth bearing arrangement according to the invention with an element according to the invention which rests on an end face, Fig. 5 shows a half axial section through a fifth bearing arrangement according to the invention with an element according to the invention which bears against an inner ring, Fig. 6 shows a half axial section through a sixth bearing arrangement according to the invention with an element according to the invention which bears against an entire radial inner surface of the inner ring, Fig. 7 shows a half axial section through a seventh bearing arrangement according to the invention with an element according to the invention which bears against an inner ring and not against any end face of the inner ring, and Fig. 8 shows a half axial section through an eighth bearing arrangement according to the invention with an element according to the invention which rests on an end face of the inner ring.

[0050] Fig. Figure 1 shows a half axial section through a bearing assembly according to the invention with an element 12 according to the invention. The bearing assembly comprises a bearing 10, which is designed as a ball bearing. The bearing 10 has an outer ring 16, an inner ring 22, and rolling elements 30, which roll on raceways of the outer ring and the inner ring during operation of the bearing. The bearing 10 is a standard bearing. In particular, it has a standardized outer diameter of the outer ring and, in particular, a standardized maximum axial extension length of the outer ring.

[0051] The element 12 consists essentially of thermoplastic or thermosetting polymer material, which can be fiber-reinforced, in particular glass fiber-reinforced, and filled. For example, the element can be made entirely of polycarbonate and / or liquid crystalline polyester and / or polybutylene terephthalate and / or polyphenylene sulfide and / or polyetherimide and / or polyethylene terephthalate and / or polytrimethylene terephthalate and / or polycyclohexylenedimethylene terephthalate and / or polysulfone and / or polyethersulfone and / or polyimide and / or epoxy resin and / or phenolic resin and / or novolak and / or fiber-reinforced polycarbonate and / or fiber-reinforced liquid crystalline polyester and / or fiber-reinforced polybutylene terephthalate and / or fiber-reinforced polyphenylene sulfide and / or fiber-reinforced polyetherimide and / or fiber-reinforced polyethylene terephthalate and / or fiber-reinforced polytrimethylene terephthalate and / or fiber-reinforced polycyclohexylenedimethylene terephthalateand / or fiber-reinforced polysulfone and / or fiber-reinforced polyethersulfone and / or fiber-reinforced polyimide and / or fiber-reinforced epoxy resin and / or fiber-reinforced phenolic resin and / or fiber-reinforced novolak. The element is rotationally symmetrical with respect to an axis (not shown) of the bearing. During operation of the bearing, the outer ring and the inner ring rotate relative to each other about the axis. Due to the rotational symmetry of the element 12, the element 12 is a ring. The element is L-shaped in half axial section. The element consists of a first leg 32 and a second leg 34. The first leg 32 rests along an entire circumference of the outer ring 16 against one half of the radial outer surface of the outer ring 16. Furthermore, the second leg 34 rests against an entire end face 18 of the outer ring. Element 12 has a wall thickness of at least 4 0.5 mm. For example, the wall thickness can be approximately or exactly 2.5 mm.Furthermore, element 12 is rigid.

[0052] The bearing arrangement has a further ring 28 which is structurally identical to the element 12. The ring 28 also bears against an entire half of the radial outer surface of the outer ring and against an entire further end surface of the outer ring. The ring 28 is arranged axially next to the element 12 with respect to an axial direction of the bearing and touches it. Both the element 12 and the ring 28 are pressed onto the outer ring. The bearing arrangement further has a housing (not shown) into which the element 12, the ring 28 and the bearing are pressed. The element 12 and the ring 28 electrically insulate the bearing from the housing. The leg 34 can electrically insulate the bearing from a component (not shown) which is arranged axially next to the leg 34.

[0053] The bearing assembly may be part of an electric vehicle. For example, the bearing assembly may support a main shaft of an electric motor of the vehicle.

[0054] Element 12 and other components that are identical to Element 12 except for their dimensions can be combined into a range that can be sold to customers as a single product.

[0055] During the manufacturing of element 12, the desired wall thickness is already achieved after sintering to an accuracy of 0.1 mm. Furthermore, during assembly, element 12 can be mounted either first onto the bearing or first into the housing.

[0056] In the Fig. 2 to 8 illustrate alternative embodiments. Essentially identical components, features, and functions are generally identified by the same reference numerals. However, to distinguish the embodiments, the reference numerals of the embodiments of the Fig. 2 to Fig. 8 the letters “a”, “b”, etc. The following description is essentially limited to the differences to the embodiment in Fig. 1, whereby with regard to the same components, features and functions, reference is made to the description of the embodiment in Fig. 1 can be referred to.

[0057] The only difference in execution according to Fig. 2 compared to the execution according to Fig. 1 is that there is no second ring and the first ring, the element 12a, bears against an entire radial outer surface of the outer ring 16a.

[0058] The only difference in execution according to Fig. 3 compared to the execution according to Fig. 2 is that the element 12b only rests on a radial outer surface of the outer ring 16b and not on an end face of the outer ring.

[0059] The only difference in execution according to Fig. 4 compared to the execution according to Fig. 2 is that the element 12c does not bear against a radial outer surface of the outer ring 16c and only against an end face of the outer ring.

[0060] The only differences in the execution according to Fig. 5 compared to the execution according to Fig. 1 consist of the following: the element 12d bears against an entire half of a radial inner surface 20d of the inner ring 22d and against an end surface 24d of the inner ring. Furthermore, the ring 28d bears against an entire half of the radial inner surface and against another end surface of the inner ring. The outer ring 16d is press-fitted into a housing. The element 12d and the ring 28d bear against a shaft (not shown), electrically insulating it from the housing and the bearing. Furthermore, the element and the ring 28d are secured to the inner ring by an interference fit.

[0061] The only difference in execution according to Fig. 6 compared to the design according to Fig. 4 is that there is no second ring and the first ring, the element 12e, bears against an entire radial inner surface of the inner ring 22e.

[0062] The only difference in execution according to Fig. 7 compared to the version according to Fig. 6 is that the element 12f only rests on a radial inner side of the inner ring 22f and not on an end face of the inner ring.

[0063] The only difference in execution according to Fig. 8 compared to Fig. 6 is that the element 12g does not bear against a radial inner surface of the inner ring 22g and only against an end face of the inner ring. List of reference symbols: 10 warehouses 12 elements 14 Exterior surface 16 Outer ring 18 Frontal surface 20 interior surface 22 inner ring 24 Frontal area 26 wall thickness 28 rings 30 rolling elements 32 legs 34 legs QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This 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

[0000] DE 10 2020 201 509 A1

[0006]

Claims

[1] Bearing arrangement comprising a bearing (10) and an element (12) comprising polymer material and which either bears against a radial outer surface (14) of an outer ring (16) of the bearing and / or against an end face (18) of the outer ring or bears against a radial inner surface (20) of an inner ring (22) of the bearing and / or against an end face (24) of the inner ring, wherein the element is a ring with a wall thickness (26) of at least 0.5 millimeters, characterized by , that the element (12) consists at least essentially of: polycarbonate and / or liquid-crystalline polyester and / or polybutylene terephthalate and / or polyphenylene sulfide and / or polyetherimide and / or polyethylene terephthalate and / or polytrimethylene terephthalate and / or polycyclohexylenedimethylene terephthalate and / or polysulfone and / or polyethersulfone and / or polyimide and / or epoxy resin and / or phenolic resin and / or novolak and / or fiber-reinforced polycarbonate and / or fiber-reinforced liquid crystalline polyester and / or fiber-reinforced polybutylene terephthalate and / or fiber-reinforced polyphenylene sulfide and / or fiber-reinforced polyetherimide and / or fiber-reinforced polyethylene terephthalate and / or fiber-reinforced polytrimethylene terephthalate and / or fiber-reinforced polycyclohexylenedimethylene terephthalate and / or fiber-reinforced polysulfone and / or fiber-reinforced polyethersulfone and / or fiber-reinforced polyimide and / or fiber-reinforced epoxy resin and / or fiber-reinforced phenolic resin and / or fiber-reinforced novolak. [2] Bearing arrangement according to claim 1, characterized by that the element is made of a material which has a specific resistance of at least 10 19 µOhm·cm and / or an electrical breakdown strength of at least 10 MV / m and / or a dielectric loss factor of maximum 0.

07. [3] Bearing arrangement according to at least one of claims 1 or 2, characterized by that the wall thickness (26) is at least 1 millimeter and particularly preferably about 2.5 millimeters. [4] Bearing arrangement according to at least one of the preceding claims, characterized by that the element is made of a material which has a toughness G of at least 0.2 kJ / m 2 and / or a ductility index of at least 0.1 µm and / or a compressive or compression modulus of at least 6 GPa and / or a compressive strength of at least 120 MPa. [5] Bearing arrangement according to at least one of the preceding claims, characterized by that the element (12) consists essentially of glass fiber reinforced polymer material. [6] Bearing arrangement according to at least one of the preceding claims, characterized by that the bearing (10) is a standard bearing [7] Bearing arrangement according to at least one of the preceding claims, characterized by that the element (12) is L-shaped in an axial section. [8] Bearing arrangement according to at least one of the preceding claims, characterized by at least one further ring (28) with a wall thickness of at least 0.5 millimeters, which is arranged next to the ring with respect to an axial direction of the bearing (10) and consists at least substantially of polymer material or at least substantially of fiber-reinforced polymer material and which either bears against the radial outer surface (14) of the outer ring (16) of the bearing (10) and / or against the end face (18) of the outer ring or bears against the radial inner surface (20) of the inner ring (22) of the bearing and / or against the end face (24) of the inner ring. [9] An element (12) comprising polymer material which can be connected to a bearing ring of a bearing (10) by a press fit, a clearance fit, or a transition fit and / or can be arranged on the bearing ring such that the element (12) contacts an entire region of an end face (18, 24) of the bearing ring or segments of the entire region, and the region extends continuously over 360° around a central axis of the bearing, the element having a wall thickness (26) of at least 0.5 millimeters, characterized bythat the element (12) consists at least essentially of: polycarbonate and / or liquid-crystalline polyester and / or polybutylene terephthalate and / or polyphenylene sulfide and / or polyetherimide and / or polyethylene terephthalate and / or polytrimethylene terephthalate and / or polycyclohexylenedimethylene terephthalate and / or polysulfone and / or polyethersulfone and / or polyimide and / or epoxy resin and / or phenolic resin and / or novolak and / or fiber-reinforced polycarbonate and / or fiber-reinforced liquid-crystalline polyester and / or fiber-reinforced polybutylene terephthalate and / or fiber-reinforced polyphenylene sulfide and / or fiber-reinforced polyetherimide and / or fiber-reinforced polyethylene terephthalate and / or fiber-reinforced polytrimethylene terephthalate and / or fiber-reinforced polycyclohexylenedimethylene terephthalate and / or fiber-reinforced polysulfone and / or fiber-reinforced polyethersulfone and / or fiber-reinforced polyimide and / or fiber-reinforced epoxy resin and / orfiber-reinforced phenolic resin and / or fiber-reinforced novolak. [10] An assortment of elements, each element (12) being constructed according to claim 9.

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