STORAGE ARRANGEMENT FOR A CHARGING DEVICE AND METHOD FOR MAKING THE STORAGE ARRANGEMENT

Abstract

The present invention relates to a bearing arrangement (10) and a method (400) for manufacturing the bearing arrangement (10), in particular for a charging device (1). The method comprises providing (410) a bearing bushing assembly (11) comprising a positioning pin (100) and a bearing bushing (300), wherein the bearing bushing (300) includes a retaining recess (320) in which the positioning pin (100) is inserted such that the positioning pin (100) is located within an outer circumference (U) of the bearing bushing (300). The method comprises arranging (420) the bearing bushing assembly (11) in a bearing receptacle (220) of a bearing housing (200) extending in an axial direction (22) such that a positioning pin receptacle (210) of the bearing housing (200) is aligned with the retaining recess (320).The method comprises fastening (430), in particular pressing in, a first section (120) of the positioning pin (100) from the bearing bushing (300) into the positioning pin receptacle (210).

Description

Technical field The present invention relates to a bearing arrangement for a charging device, a charging device for an internal combustion engine or a fuel cell with such a bearing arrangement, and a method for manufacturing a bearing arrangement for a charging device. background More and more newer generation vehicles are being equipped with charging systems to meet performance targets and legal requirements. When developing charging systems, it is essential to optimize both the individual components and the system as a whole in terms of reliability and efficiency. Known supercharging devices typically include at least one compressor with a compressor wheel connected to a drive unit via a common shaft. The compressor compresses the fresh air drawn in for an internal combustion engine or a fuel cell. This increases the amount of air or oxygen available to the engine for combustion or to the fuel cell for reaction. This, in turn, leads to an increase in the power output of the internal combustion engine or the fuel cell. Supercharging devices can be equipped with different drive units. In the prior art, electric superchargers, in which the compressor is driven by an electric motor, and turbochargers, in which the compressor is driven by a turbine, particularly a radial turbine, are known.Unlike an axial turbine (as used, for example, in aircraft engines), where the exhaust flow is essentially exclusively axial, in a radial turbine the exhaust flow is directed onto the turbine wheel from a spiral turbine inlet, primarily radially, and in the case of a mixed-flow radial turbine, semi-radially, i.e., with at least a small axial component. Besides the electric supercharger and the turbocharger, combinations of both systems are described in the prior art, which are also referred to as e-turbos. For example, an e-turbo can be an electrically assisted exhaust gas turbocharger or an electrically assisted charging unit or device for fuel cells. To increase the efficiency of turbines and adapt them to different operating points, modern charging devices are equipped with a power control unit, which allows the power generation of the charging device to be adjusted.can be changed. Well-known performance adjustment devices include, for example, a variable turbine geometry (VTG) or a wastegate valve (WG). Bearing arrangements for charging devices such as turbochargers are known, by which a shaft can be rotatably mounted in a bearing housing. Bearing arrangements can include a hydrodynamic bearing or a plain bearing for supporting the shaft. Known bearing arrangements can have a semi-floating bearing bushing for rotatably mounting the shaft, which is arranged in a bearing receptacle in the bearing housing. Radial support of the shaft can be provided by means of an oil film on the inside and / or outside of the bearing bushing. This design can also provide damping. The bearing bushing can be positioned in the bearing housing by means of one or more positioning devices. Known positioning devices for limiting movement of the bearing bushing in the bearing housing include positioning pins.A positioning pin can be arranged in a positioning pin receptacle in the bearing housing such that at least a section of the positioning pin extends into a receptacle of the bearing bushing. This allows rotational and / or axial movement of the bearing bushing to be limited. DE 10 2018 212 619 A1 relates to a charging device with a bearing housing and a bearing cartridge arranged therein. The charging device includes a locking pin for securing the bearing cartridge, which engages in an opening on the bearing cartridge when assembled. US 2013 / 0 115 080 A1 describes a turbocharger assembly with a housing, a bearing, and a positioning pin. The positioning pin is pressed into a lower section of a transverse bore in the housing and extends into a transverse bore in the bearing. DE 11 2019 000 727 T5 relates to a bearing assembly in which an insert component is inserted into an insertion hole in a housing and secures a bearing component of the bearing assembly. DE 10 2016 215 275 A1 relates to a bearing device with a bearing bushing and a pin for securing the bearing bushing. DE 10 2021 111 668 A1 relates to a bearing section comprising a bearing bushing and a fixing element for securing the bearing bushing.Often, a gap (or ring gap) is provided between the positioning pin and its receptacle in the bearing bushing to allow at least some "floating" of the bushing. In known devices and methods, a positioning pin is frequently pressed through a bore in the bearing housing (for example, through a lubrication inlet section). Due to the small clearance between the positioning pin and the bearing bushing, and / or between the positioning pin and the bore, there is a risk of damaging the surface of the positioning pin and / or the bearing bushing during this pressing process. This can also lead to increased wear of the bearing assembly due to reduced surface quality. Furthermore, the use of an enlarged lubrication inlet section makes a controlled supply of lubricant complex.Other methods for pressing in the positioning pin, for example on the lubricant outlet side, require a more complex design of the positioning pin, which can lead to increased costs. The object of the present invention is to provide an improved bearing arrangement for a charging device, as well as an improved method for manufacturing the bearing arrangement, and in particular a method by which wear can be reduced. Summary of the invention The present invention relates to a method for manufacturing a bearing arrangement, in particular for a charging device, according to claim 1. Furthermore, the present invention relates to a bearing arrangement for a charging device according to claims 8 and 14, and to a charging device for an internal combustion engine or a fuel cell with such a bearing arrangement according to claim 15. The dependent claims describe advantageous embodiments of the method and the bearing arrangement. According to a first aspect of the present invention, a method for manufacturing a bearing assembly, particularly for a charging device, comprises providing a bearing bushing assembly comprising a positioning pin and a bearing bushing. The bearing bushing includes a retaining recess in which the positioning pin is inserted or can be inserted such that the positioning pin is located within an outer circumference, in particular a maximum outer circumference, of the bearing bushing. The method further comprises arranging the bearing bushing assembly in a bearing receptacle of a bearing housing extending in an axial direction such that a positioning pin receptacle of the bearing housing is aligned with the retaining recess. The method also includes fastening, in particular pressing in, a first section of the positioning pin from the bearing bushing into the positioning pin receptacle. By first providing a bearing bushing assembly in which the positioning pin is completely received within the bearing bushing, arranging this assembly in the bearing receptacle in the bearing housing, and pressing at least a section of the positioning pin from the bearing bushing into the positioning receptacle, damage to the surface of the positioning pin and / or the bearing bushing can be reduced. This allows for the maintenance of a high surface finish on the positioning pin and the retaining recess, resulting in less wear during operation. In particular, the contact surface between the second section, especially an end section of the positioning pin, and the retaining recess in which the second section is arranged, exhibits a high surface finish. Grooves that may occur during pressing can be eliminated by the method according to the invention.The design of the positioning pin and the bearing bushing can be reduced or eliminated. Furthermore, a simple design for the positioning pin with a constant outer diameter can be chosen, thus reducing costs. Additionally, during assembly, the positioning pin does not need to be passed through or pressed into a housing bore that connects a lubricant inlet section to the bearing assembly, allowing for freely selectable dimensions of these sections, rather than being predetermined by the diameter of the positioning pin. This enables a simpler and freely selectable lubricant supply. Furthermore, machining steps to improve the surface finish of these sections can be eliminated or reduced, thus also reducing costs. The improved surface finish also allows for defined axial support of the bearing bushing. The axial play, or...The fit between the positioning pin and the bearing bushing can be kept as small as possible or as required. Over a longer operating period, the reduced wear (or a more precise (clearance) fit) can also reduce or limit axial movement between the bearing bushing and the bearing housing in the bearing receptacle, resulting in less movement of the shaft and thus of the components attached to it. For example, this can also lead to less wear on turbine-side and / or compressor-side piston rings for sealing. In some configurations, the positioning pin can have a constant diameter from its first end to its second end. The pin length can be greater than the (e.g., largest) inner diameter of the bearing bushing. This ensures that the positioning pin is reliably held in the bearing bushing. In some designs, the locking recess can be configured as a transverse bore through the bearing bushing. After fastening, a second section of the positioning pin can extend at least partially into the locking recess to secure the bearing bushing. In some embodiments, providing the bearing bushing assembly can include providing the positioning pin, providing the bearing bushing, and inserting or placing the positioning pin into the locking recess such that the positioning pin is located within the outer circumference of the bearing bushing. In some designs, a clearance fit may be provided between the positioning pin and the locking recess. In some configurations, the bearing bushing can include a shaft bore for the rotatable support of a shaft. The retaining recess can extend transversely to the shaft bore through the bearing bushing. In some embodiments, arranging the bearing bushing assembly in the bearing receptacle can include inserting the bearing bushing assembly axially into the bearing receptacle and subsequently aligning the positioning pin receptacle, in particular the positioning pin, with the locking recess. In various embodiments, the bearing housing can have a lubricant inlet section, a lubricant outlet section, and a housing bore. The housing bore can open into the bearing receptacle and include the positioning pin receptacle. The fastening process can include inserting a tool through the housing bore to the bearing receptacle and coupling the tool to the positioning pin. The fastening process can also include securing, in particular pressing, the first section of the positioning pin from the bearing bushing into the positioning pin receptacle using the tool. In some embodiments, the housing bore in the bearing housing can be arranged separately from the lubricant inlet section, in particular spaced apart from the lubricant inlet section in the circumferential direction and / or in the axial direction. In some embodiments, the housing bore can extend from the lubricant inlet section into the bearing receptacle, and the positioning pin receptacle can be arranged between the bearing receptacle and the lubricant inlet section. Fastening can involve securing, in particular pressing, the first section of the positioning pin from the bearing bushing towards the lubricant inlet section into the positioning pin receptacle by applying a tensile force with the tool. In some embodiments, the housing bore can extend from the lubricant inlet section through the bearing receptacle to the lubricant outlet section, and the positioning pin receptacle can be arranged between the bearing receptacle and the lubricant outlet section. Fastening can involve, in particular, pressing the first section of the positioning pin from the bearing bushing towards the lubricant outlet section into the positioning pin receptacle using a pressing force with a tool. In various embodiments, the method may include providing a shaft assembly comprising a shaft and a turbine wheel, which is rotationally fixed to a first end of the shaft. The method may include inserting the shaft assembly axially into the shaft bore such that the shaft is supported in the shaft bore by means of a first bearing section of the shaft. The method may include arranging a sealing bushing on at least a second bearing section of the shaft, such that the bearing bushing is axially supported between a turbine-side shaft shoulder and the sealing bushing in order to limit axial movement of the shaft assembly. The method may include arranging a compressor wheel on the at least one second bearing section of the shaft, such that it is axially supported against the sealing bushing. The at least one second bearing section may extend through the compressor wheel on the compressor side.The shaft assembly can include a mounting section on a compressor-side end section of the shaft. The method can include attaching a locking element to the mounting section such that the compressor wheel is axially clamped between the sealing bushing and the locking element. According to a second aspect of the present invention, a bearing arrangement for a charging device comprises a bearing housing including a positioning pin receptacle and a bearing receptacle extending in an axial direction. The bearing arrangement includes a bearing bushing comprising a retaining recess. The bearing arrangement includes a positioning pin. The bearing bushing is arranged in the bearing receptacle such that the positioning pin receptacle is aligned with the retaining recess. A first section of the positioning pin is secured in the positioning pin receptacle. A second section of the positioning pin extends at least partially into the retaining recess. The retaining recess comprises a first section and a second opposing section in the bearing bushing.The positioning pin and the bearing bushing are designed such that the positioning pin can be received in the retaining recess within the outer circumference of the bearing bushing. This is particularly the case when the positioning pin is removed, i.e., in a disassembled state. In this state, the positioning pin is not secured in the positioning pin receptacle. All the advantageous technical effects described above can be achieved through the design of the bearing arrangement. The bearing assembly, its components, and the method for manufacturing the bearing assembly may have all the features described herein. In some embodiments, an interference fit may be provided between the first section of the positioning pin and the positioning pin receptacle. A clearance fit may be provided between the second section of the positioning pin and the retaining recess. The bearing bushing may include a shaft bore for the rotatable support of a shaft. The retaining recess may intersect the shaft bore. In particular, the retaining recess may extend transversely to the shaft bore through the bearing bushing. As described above, the positioning pin can have a constant diameter from its first end to its second end. The pin length can be greater than the inner diameter of the bearing bushing. The pin diameter can be less than one-third the diameter of the retaining recess. In some embodiments, the bearing bushing, particularly measured at the retaining recess, can have a bushing diameter. The pin length can be less than the bushing diameter. In some embodiments, the positioning pin receptacle can intersect or open into the bearing receptacle. In particular, the positioning pin receptacle can be arranged transversely to the bearing receptacle. The bearing housing can have a lubricant inlet section, a lubricant outlet section, and a housing bore. The housing bore can open into the bearing receptacle and encompass the positioning pin receptacle. As described above, in some embodiments the housing bore in the bearing housing can be arranged separately from the lubricant inlet section, in particular spaced apart from the lubricant inlet section in the circumferential direction and / or in the axial direction. In other embodiments the housing bore can extend from the lubricant inlet section into the bearing receptacle and the positioning pin receptacle can be arranged between the bearing receptacle and the lubricant inlet section. In some embodiments, the housing bore can extend from the lubricant inlet section through the bearing receptacle to the lubricant outlet section, with the positioning pin receptacle located between the bearing receptacle and the lubricant outlet section. The housing bore can have a first bore section and a second bore section. These can be coaxial with each other. The bearing receptacle can be located between the first bore section and the second bore section. The first bore section can connect the lubricant inlet section to the bearing receptacle. The second bore section can encompass the positioning pin receptacle and connect the bearing receptacle to the lubricant outlet section. The first bore section can have a first diameter that is equal to or less than a pin diameter. The second bore section can have a constant second diameter.In some embodiments, a first end section of the positioning pin can extend at least partially from the second bore section into the lubricant outlet section. The positioning pin can include a tool holder designed to be coupled with a tool. The tool holder can extend along a longitudinal axis of the positioning pin from a first end, at least partially within the positioning pin. According to one aspect of the present invention, a bearing arrangement for a charging device comprises a bearing housing comprising a positioning pin receptacle and a bearing receptacle extending in an axial direction. The bearing arrangement includes a bearing bushing comprising a retaining recess. The bearing bushing is arranged in the bearing receptacle such that the positioning pin receptacle is aligned with the retaining recess. The bearing arrangement includes a positioning pin. A first section of the positioning pin is secured in the positioning pin receptacle. A second section of the positioning pin extends at least partially into the retaining recess. The positioning pin and the bearing bushing are designed such that the positioning pin can be received in the retaining recess within an outer circumference of the bearing bushing, particularly when the positioning pin is removed from the positioning pin receptacle.The bearing housing has a lubricant inlet section, a lubricant outlet section, and a housing bore that opens into the bearing receptacle and includes the positioning pin receptacle. The housing bore extends from the lubricant inlet section into the bearing receptacle, and the positioning pin receptacle is located between the bearing receptacle and the lubricant inlet section. According to a third aspect of the present invention, a charging device, particularly for an internal combustion engine or a fuel cell, comprises a bearing arrangement according to the second aspect of the present invention. The charging device may further comprise a shaft rotatably mounted in the bearing arrangement. The charging device may also include a compressor with a compressor wheel. The charging device may also include a turbine with a turbine wheel. The compressor wheel and the turbine wheel may be rotationally fixed to the shaft at opposite ends. The charging device may have all the features and advantageous effects described herein. In various embodiments, the turbine can comprise a turbine housing defining a feed channel and an outlet channel, with the turbine wheel arranged between the feed channel and the outlet channel. The turbine can also include a guide vane arranged radially outside the turbine wheel within the turbine housing. The compressor can comprise a compressor housing in which the compressor wheel is arranged. The compressor housing and the turbine housing can be coupled to the bearing housing on opposite sides. The charging device can include a sealing bushing clamped axially between the compressor wheel and a shoulder of the shaft on the compressor side. The shaft can be supported in the shaft bore by means of a first bearing section of the shaft. The sealing bushing can be arranged on at least a second bearing section of the shaft.The compressor-side shaft shoulder can be arranged between the first bearing section and the second bearing section. The bearing bushing can be axially supported between the sealing bushing and a turbine-side shaft shoulder in such a way that axial movement of the shaft is limited. The at least one second bearing section can extend through the compressor wheel on the compressor side. The shaft can include a mounting section at a compressor-side end section of the shaft. A locking element can be coupled to the mounting section in such a way that the compressor wheel and the sealing bushing are axially clamped between the compressor-side shaft shoulder and the locking element. Brief description of the characters Fig. 1 shows an isometric view of a charging device with a bearing arrangement according to aspects of the present invention; Figs. 2A to 2C show sectional views, cut along the axial direction, of the charging device and bearing arrangement according to a first embodiment of the present invention; Figs. 3A to 3C show sectional views, cut along the axial direction, of the charging device and bearing arrangement according to a second embodiment of the present invention; Figs. 4A and 4B show sectional views of the charging device and bearing arrangement, cut in the radial direction, according to further embodiments of the present invention; Figs. 5A to 5D illustrate the process steps of the inventive method for manufacturing or assembling the bearing arrangement; Figs. 6A to 6D illustrate further process steps of the inventive method of Fig.5A to 5D , in particular the assembly of a shaft assembly in the bearing arrangement according to the invention. Detailed description Embodiments of the bearing arrangement 10 for the charging device 1, the charging device 1 for an internal combustion engine or a fuel cell comprising the bearing arrangement 10 and the method 400 for manufacturing, in particular for assembling, the bearing arrangement 10 for the charging device 1 according to aspects of the present invention are described below with reference to the drawings. In the context of this application, the terms "axial" and "axial direction" refer to a rotational axis R of the shaft 30, the turbine wheel 62, and the compressor wheel 52, as well as to a longitudinal axis of the bearing arrangement 10, the bearing bushing 300, the bearing receptacle 220, and the shaft bore 310 in which the shaft 30 can be supported. With reference to the figures (see Figs. 1, 2A, 2B, 3A, 3B, and 4A to 6D), the axial direction is indicated by reference numeral 22. A radial direction 24 refers to the axial direction 22.Likewise, a circumference or circumferential direction 26 refers to the axial direction 22. The directions 22 and 24 are orthogonal to each other. Fig. 1 shows an isometric view of a charging device with a bearing arrangement 10 according to aspects of the present invention. The charging device 1 can be used for an internal combustion engine or a fuel cell. It can be designed and dimensioned accordingly. The internal combustion engine or the fuel cell can include the charging device 1. The charging device 1 can be an exhaust gas turbocharger or coupled to a fuel cell. As shown in Fig. 1, the charging device 1 for an internal combustion engine or a fuel cell comprises a bearing arrangement 10 according to aspects of the present invention. Furthermore, the charging device 1 can comprise a turbine 60 with a turbine wheel 62. The charging device can also comprise a compressor 60 with a compressor wheel 52. Finally, the charging device 1 can include an actuator 20. The charging device 1 can be a turbocharger. In embodiments, the charging device 1 can also be configured as an electric turbocharger (not shown in the figures). The turbine 60 comprises a turbine housing 61 in which a turbine wheel 62 is arranged. The turbine 60 can, in particular, be a radial turbine. The turbine housing 61 defines a turbine housing inlet or feed channel 63 and a turbine housing outlet or discharge channel 64. The feed channel 63 can also be referred to as a turbine housing spiral.The turbine wheel 62 is arranged in a receiving space of the turbine housing 61 between the feed channel 63 and the outlet channel 64. The turbine 60 also includes a turbine housing rear wall, which is coupled to the turbine housing 61 on the bearing housing side. As can be seen in Fig. 1, the turbine housing rear wall can be designed as part of a bearing housing 200 (in particular by a side surface of the bearing housing 200 facing the turbine housing 61). With reference to Fig. 1, the charging device 1 further includes a shaft 30 with an axis of rotation R, which is rotatably coupled to the turbine wheel 62. The shaft 30 is rotatably mounted in the bearing arrangement 10. The axial direction 22 is defined with respect to the axis of rotation R. As shown in Fig. 1, the compressor 50 includes a compressor housing 51 in which a compressor wheel 52 is arranged.The bearing housing 200 can be connected to the turbine housing 61 and / or the compressor housing 51 via a flange connection. In particular, the compressor housing 51 can be connected to the bearing housing 200 on a side of the bearing housing 200 opposite the turbine housing 61. The compressor wheel 52 and the turbine wheel 62 are rotationally fixed to the shaft 30 at opposite ends. As shown in Fig. 1, the turbine 60 can include a guide device 70 (e.g., a variable turbine geometry) which is arranged radially outside the turbine wheel 62 in the turbine housing 61 and, in particular, surrounds the turbine wheel 62 completely. The guide device 70 comprises, for example, a plurality of adjustable guide vanes and is designed to modify the flow to the turbine wheel 62. To control the movement or position of the guide vanes, an actuating device 20 can be provided, which can be of any design, for example, electronic or pneumatic. In the example of Fig. 1, the actuating device 20 is pneumatically designed with a control housing (e.g., a pressure capsule) and a plunger element, which transmits the movement of the control housing to the guide device 70 or the adjustable guide vanes via one or more intermediate elements, in particular via an adjusting shaft arrangement.In some embodiments, the turbine 60 can include a power control device in the form of a wastegate, wherein a wastegate flap can close and open a wastegate channel of the turbine as required (not shown in the figures). The wastegate flap can be connected to the actuating device 20 or another actuating device via a lever and / or a control rod. In some embodiments, the charging device 1 can further comprise an electric motor (not shown in the figures), which can be arranged in a motor compartment within the bearing housing 200. The turbine wheel 62 and / or the compressor wheel 52 can be coupled to the electric motor via the shaft 30. The electric motor can have a rotor and a stator, in particular wherein the rotor can be rotationally fixed to the shaft 30, and wherein the stator surrounds the rotor and is coupled to the bearing housing 200. Furthermore, a power electronics circuit for controlling the electric motor can be arranged in a receiving compartment within the bearing housing 200. The electric motor can also include a generator mode. The following section describes the bearing arrangement 10 in more detail according to aspects of the present invention. Figures 2A to 2C show sectional views, cut along the axial direction 22 (and through a center), of the charging device 1 and the bearing arrangement 10 according to a first embodiment of the present invention. Figures 3A to 3C show sectional views, cut along the axial direction 22, of the charging device 1 and the bearing arrangement 10 according to a second embodiment of the present invention. Figures 4A and 4B show further detailed sectional views, cut in the radial direction 24 through the bearing arrangement 10, according to further embodiments of the present invention, which can be combined with the first and second embodiments. The following description refers to all embodiments of the present invention. If certain features are found only in a particular embodiment, this will be explicitly mentioned in the description. As shown in Figures 2A to 6D, the bearing arrangement 10 for the charging device comprises a bearing housing 200. The bearing housing 200 includes a positioning pin receptacle 210 and a bearing receptacle 220 extending in the axial direction 22. The bearing receptacle 220 with the axial direction 22 can also be referred to as a longitudinal bore in the bearing housing 200 and is designed to receive a bearing bushing 300. In particular, the positioning pin receptacle 210 can be arranged such that it intersects or opens into the bearing receptacle 220. The bearing arrangement 10 includes the bearing bushing 300. This bushing can include a shaft bore 310 for rotatably supporting the shaft 30. The bearing bushing 300 includes a locking recess 320, i.e. a receptacle or recess by means of which the bearing bushing 300 can be secured when another component, such as a section 130 of the positioning pin 100, engages.The retaining recess 320 can be arranged such that it intersects or opens into the shaft bore 310. The bearing bushing 300 is arranged in the bearing receptacle 220 such that the positioning pin receptacle 210 is aligned with the retaining recess 320. The bearing assembly includes a positioning pin 100. A first section 120 of the positioning pin 100 is secured in the positioning pin receptacle 210. A second section 130 of the positioning pin 100 extends, in particular to secure the bearing bushing 300 in the bearing receptacle 220, at least partially into the retaining recess 320. The positioning pin 100 has a longitudinal axis x, which can be aligned coaxially with the positioning pin receptacle 210 or the retaining recess 320.The positioning pin 100 and the bearing bushing 300 are designed such that the positioning pin 100, particularly when removed from the positioning pin receptacle 210, can be received in the retaining recess 320 within a (particularly maximum) outer circumference U of the bearing bushing 300. This is especially the case when the positioning pin 100 is in a removed state. In this state, the positioning pin is not secured in the positioning pin receptacle 210. In other words, the positioning pin 100 and the bearing bushing 300 can be configured to form a bearing bushing assembly in which the positioning pin 100 can be accommodated within an outer circumference U of the bearing bushing (particularly a maximum circumference). In the disassembled state, the bearing bushing assembly 11, comprising the positioning pin 100 and the bearing bushing 300, can be removed from the bearing housing 200. This means that the bearing bushing assembly can include the positioning pin 100 and the bearing bushing 300, which includes the retaining recess 320. The positioning pin 100 can be arranged in the retaining recess 320 such that it can be accommodated within an outer circumference U of the bearing bushing 300.The positioning pin 100 is designed to be fastened, in particular pressed, into the positioning pin receptacle 210 when the bearing bushing assembly 11 is arranged in the bearing receptacle 220 in the bearing arrangement and the retaining recess 320 and the positioning pin receptacle 210, in particular the positioning pin 100 with the positioning pin receptacle 210, are aligned accordingly. The retaining recess 320 is designed such that the positioning pin 100 can be received in it. This dimensioning of the positioning pin 100 relative to the bearing bushing 300 consequently allows the bearing bushing assembly 11 to first be inserted into the bearing receptacle 22 in the axial direction 22 during assembly, and then at least the first section 120 of the positioning pin 100 to be pressed out of the bearing bushing 300 and into the positioning pin receptacle 210.In particular, during disassembly, the positioning pin 100 can be moved out of the positioning pin receptacle 210 and back into the bearing bushing 300, especially into the locking recess 320 of the bearing bushing 300. Figures 5A to 5D illustrate the process steps of the inventive method 400 for manufacturing or assembling the bearing arrangement 10. As shown in Figure 5A, the method comprises providing 410 the bearing bushing assembly 11 comprising the positioning pin 100 and the bearing bushing 300, wherein the bearing bushing 300 includes a retaining recess 320 in which the positioning pin 100 is inserted such that the positioning pin 100 is located within an outer circumference U of the bearing bushing 300. In particular, the inserted positioning pin 100 can be located within a maximum circumference of the bearing bushing 300, which may be decisive for the bearing bushing 300 to be inserted into the bearing receptacle 220. As shown in Figure 5A, the bearing bushing 300 is then inserted into the bearing receptacle 220.As shown in Fig. 5B, the method 400 comprises arranging the bearing bushing assembly 11 in the axially extending bearing receptacle 220 of the bearing housing 200 such that the positioning pin receptacle 210 of the bearing housing 200 is aligned with the retaining recess 320, particularly after the bearing bushing assembly 11 has been provided. As shown in Figs. 5C and 5D, the method 400 comprises fastening 430, in particular pressing in, the first section 120 of the positioning pin 100 from the bearing bushing 300 into the positioning pin receptacle 210. The method steps and further method steps are explained in detail below. The bearing arrangement 10 and the method 400 according to the invention offer numerous advantages. By first providing a bearing bushing assembly 11 in which the positioning pin 100 can be fully received in the bearing bushing 300, arranging this assembly in the bearing receptacle 220 in the bearing housing 200, and securing, in particular pressing in, at least a first section 120 of the positioning pin 100 from the bearing bushing 300 into the positioning receptacle 210, damage to the surface of the positioning pin 100 and / or the bearing bushing 300 can be reduced. A high surface quality of the positioning pin 100 and the retaining recess 320 can be maintained, resulting in less wear during operation.In particular, the contact surface between a second section 130, especially an end section, of the positioning pin 100 and the retaining recess 320, in which the second section 130 is at least partially arranged to secure (axially and / or circumferentially) the bearing bushing 300, has a high surface quality. Grooves that can occur during press-fitting can be reduced or avoided by the inventive method 400 or the design of the bearing arrangement 10, especially the positioning pin 100 and the bearing bushing 300. The improved surface quality also allows for defined axial support of the bearing bushing 300. The axial play or fit between the positioning pin 100 and the bearing bushing 300 can be kept as small as possible or as required. Over a longer operating period, the reduced wear (or...A more precise (clearance) fit can also reduce or limit axial movement between the bearing bushing 300 and the bearing housing 200 in the bearing receptacle 220, resulting in less movement of the shaft and thus of the components attached to it. For example, stationary piston rings used for sealing, particularly between the shaft 30 and the bearing housing 200 on the turbine wheel 62 and compressor wheel 52 sides, experience less axial movement during operation, which can lead to reduced wear. Such piston rings can be arranged, for example, in circumferential grooves on the turbine wheel 62 side and adjacent to it between the shaft 30 and the bearing housing 200, and / or on the compressor wheel 52 side between the sealing bushing 80 and the bearing housing 200. The reduced shaft movement can minimize axial movement of the piston rings in the grooves, which can lead to less wear.Furthermore, a simple design of the positioning pin 100 with a constant outer diameter can be selected, thereby reducing costs. Additionally, during assembly, the positioning pin 100 does not first need to be passed through a housing bore 230, so that the dimensions of these sections are freely selectable and not predetermined by a diameter of the positioning pin 100. This allows for a simpler and freely selectable lubricant supply to the bearing receptacle 220. Moreover, machining steps to improve the surface finish of these sections can be eliminated or reduced. This also reduces costs. Designs of the bearing arrangement 10 and the method 400 are described later. In the context of this application, "terminating" or "intersecting" can mean that the positioning pin receptacle 210 is arranged at a first angle to the bearing receptacle 220 and that the locking recess 320 is arranged at a second angle to the shaft bore 310, i.e., that the axes of the positioning pin receptacle 210 and / or the locking recess 320 intersect with the longitudinal axis (or axial direction 22) of the bearing receptacle 220 and the shaft bore 310, respectively, and in particular terminate in the bearing receptacle. The first and second angles with respect to the axial direction 22 can, in particular, be equal. The positioning pin receptacle 210 can be configured as a positioning pin bore. The locking recess 320 can have a constant diameter. The locking recess 320 can have a first section 320a and a second opposing section 320b in the bearing bushing 300.The locking recess 320 extends into opposite walls of the bearing bushing 300, which surround the first and second sections 320a, 320b. The positioning pin 100 can be received in the first and second sections 320a, 320b and supported in the opposite walls (particularly before being secured in the positioning pin receptacle 210). The locking recess 320 can be configured as a locking bore. In particular, the positioning pin receptacle 210 can be provided as a first transverse bore in the bearing housing 200, which runs transversely (i.e., orthogonally) to or opens into the bearing receptacle 220. The locking recess 320 is arranged at an angle, particularly between 45° and 90°, preferably approximately 90°, to the longitudinal axis of the bearing bushing 300 (or the shaft receptacle).In particular, the locking recess 320 can be provided as a second transverse bore in the bearing bushing 300, which runs transversely (i.e., orthogonally) to or opens into the shaft bore 310. For mounting the positioning pin 100, the locking recess 320 and the positioning pin receptacle 210 are aligned with each other, i.e., coaxially. The locking recess 320 can be configured as a through-bore through the entire diameter of the bearing bushing 300, and in particular at a central position with respect to a cross-section through the bearing bushing 300 (see Figs. 2A to 2C, 4A and 4B). In this case, the locking recess 320 has the first section 320a and the second opposing section 320b in the bearing bushing 300, in particular transversely to the shaft bore 310, each extending through the opposing walls. In other words, the locking recess 320 extends completely through the opposing walls of the bearing bushing 300. In embodiments, the locking recess 320 can also extend completely through the wall of the bearing bushing 300 on only one side (see Figs. 3A to 3C). As shown in these Figs.As shown, the retaining recess 320 in this case has a first section 320a, which extends completely through the wall of the bearing bushing 300, and an opposing second section 320b, which is formed in the wall of the bearing bushing 300, for example, as a blind hole or with a step that serves as a stop. Here, too, the two sections 320a and 320b can be coaxial with each other. In this embodiment, the positioning pin 100 and the bearing bushing 300 can also be designed such that the positioning pin can be received completely within the outer circumference U of the bearing bushing 300. A maximum outer circumference of the bearing bushing 300 can be decisive here. In both the embodiment of Figures 2A to 2C and the embodiment of Figures 3A to 3C, the positioning pin 100 can be supported by the opposing walls in which the retaining recess 320 extends. In the embodiment of Figure 2A to 2C, the positioning pin 100 can be supported by the opposing walls in which the retaining recess 320 extends.In 3A to 3C, the additional advantage arises that the positioning pin 100 can be secured against falling out of the bearing bushing 300 on the side where the second section 320b is designed, for example, as a blind hole or stepped. Additionally, at least one radial bore can be provided in the bearing bushing 300 to allow, for example, lubricant flow through the bearing bushing 300. This bore can have a different diameter than the retaining recess 320. Depending on requirements, this radial bore can be arranged in the wall of the bearing bushing 300 offset from the retaining recess 320 in the axial direction 22 and / or in the circumferential direction 26. As shown in Figures 2A, 3A, and 6A to 6D, the charging device 1 and the bearing arrangement 10 can have the following configurations. A shaft assembly of the charging device 1 can comprise the shaft 30 and the turbine wheel 62, wherein the turbine wheel 62 is non-rotatably coupled to the shaft 30 at one end. The shaft 30 can have a first bearing section 31, which is arranged between a turbine-side shoulder and a compressor-side shoulder of the shaft 30. The shaft assembly, in particular the shaft 30, can be supported in the shaft bore 310 by means of the first bearing section 31. The first bearing section 31 can provide radial support for the shaft 30. The turbine-side shoulder can form a first axial stop against the bearing bushing 300.The shaft 30 can have at least one second bearing section 32 (or shaft section) extending from the compressor-side shaft shoulder to an end of the shaft 30 opposite the turbine wheel 62. The second bearing section 32 has a smaller diameter than the first bearing section 31. The compressor-side shaft shoulder is located between the first bearing section 31 and the second bearing section 32. A sealing bushing 80 can be provided on the second bearing section 32 of the shaft 30. The sealing bushing 80 can be clamped in the axial direction 22 between the compressor wheel 52 and the compressor-side shaft shoulder of the shaft 30. The bearing bushing 300 can be axially supported between the turbine-side shaft shoulder and the sealing bushing 80 to limit movement of the shaft assembly in the axial direction 22.The bearing bushing 300 is secured to the bearing housing 200 in the bearing receptacle 220 by means of the positioning pin 100. The sealing bushing 80 can be axially supported on the compressor-side shaft shoulder. The sealing bushing 80 can, in particular, be pressed onto the second bearing section 32. The sealing bushing 80 serves to seal the bearing arrangement 10 on the compressor side, especially between the shaft 30 and the bearing housing 200. The shaft assembly can include the compressor wheel 52. This can be arranged on the at least one second bearing section 32 (or a further bearing section) of the shaft 30, and in particular such that a rear wall region of the compressor wheel 52 is axially supported on the sealing bushing 80. The compressor wheel 52 can be pressed onto the at least one second bearing section 32 of the shaft 30.The at least one second bearing section 32 can extend through the compressor wheel 52 (in particular through an axial bore of the compressor wheel 52) in the axial direction 22. The shaft assembly, in particular the shaft 30, can further comprise a fastening section on a compressor-side end section of the shaft 30. The shaft assembly can include a locking element 90, which is attached to the fastening section such that the compressor wheel 52 is clamped axially between the sealing bushing 80 and the locking element 90. In particular, the compressor wheel 52 and the sealing bushing 80 can be clamped between the locking element 90 and the compressor-side shaft shoulder.The locking element 90, for example a lock nut screwed onto the mounting section, can transmit a force in the axial direction 22 via the compressor wheel 52 and the sealing bushing 80 into the compressor-side shaft shoulder. In other words, the locking element 90 is coupled to the mounting section in such a way that the compressor wheel 52 and the sealing bushing 80 are clamped axially between the compressor-side shaft shoulder and the locking element 90. As shown in the figures (see especially Fig. 2B, Fig. 2C, Fig. 3B and Fig. 3C), the positioning pin 100 for the bearing arrangement 10 comprises a body 110. The body 100 is rotationally symmetric about a longitudinal axis x. The positioning pin 100, and in particular the body 110, comprises a first end 101 and an opposite second end 102. The positioning pin 100 can have a constant pin diameter Ds from the first end 101 to the second end 102. This allows for a simple design of the positioning pin 100, thereby reducing costs. The positioning pin 100 has a length Ls, which can be measured along the longitudinal axis x between the first end 101 and the second end 102. The bearing bushing 300 can have an inner diameter Di, in particular measured at an axial position where the locking recess 320 is located (see Fig. 2B and Fig. 3B).The pin length Ls of the positioning pin 100 is greater than the inner diameter Di of the bearing bushing 300. This ensures that the positioning pin 100 can be reliably supported in the bearing bushing 300 by the opposing walls in which the retaining recess 320 extends. As already described, a first section 120 of the positioning pin 100 is pressed from the bearing bushing 300 into the positioning pin receptacle 210. This first section 120 can be a first end section of the positioning pin 100. However, if an end section of the positioning pin 100 extends out of the positioning pin receptacle 210 after fastening, the first section 120 can also be an intermediate section of the positioning pin 100. As shown in the figures.As shown, a second section 130, in particular a second end section, of the positioning pin 100 extends at least partially into the locking recess 320 to secure the bearing bushing 300. This allows movement (in particular axial and / or rotational movement) of the bearing bushing 300 relative to the bearing housing to be limited or prevented. Referring to Figures 2A to 6D, and as described above, the positioning pin receptacle 210 is aligned coaxially with the locking recess 320. This means that the longitudinal axis x of the positioning pin 100 is also aligned coaxially with the positioning pin receptacle 210 (and thus with the locking recess 320). The locking recess 320 is suitable for at least partially receiving the second section 130, so that the position or movement of the bearing bushing 300 in the bearing receptacle 200 can be secured. The pin diameter Ds can be smaller than a third of the diameter h3 of the locking recess 320. A clearance fit can be provided between the positioning pin 100 and the locking recess 320. In other words, an annular gap can be provided between the components to allow some movement of the bearing bushing while preventing excessive movement. In some embodiments, however, a (slight) frictional engagement can be provided between the positioning pin 100 and the locking recess 320 to generate a holding force on the positioning pin 100 in the bearing bushing 300 during assembly. As described and with reference to Figs. 2A, 2B, 3A, and 3B, the locking recess 320 can have the first section 320a and the second opposing (or coaxial) section 320b in the bearing bushing 300.The locking recess 320 extends into the opposite walls of the bearing bushing 300, and the positioning pin 100 can be mounted in these opposite walls. In embodiments that can be combined with all the embodiments described herein, the opposing sections 320a and 320b can have different diameters. Preferably, the first section 320a of the locking recess 320, in which (particularly after assembly) the second section 130 of the positioning pin 100 is at least partially arranged to secure the bearing bushing 300, can have a diameter h3. Consequently, a clearance fit is provided between the first section 320a of the locking recess 320 and the positioning pin 100. The diameter of the opposing section 320b of the locking recess can be smaller than the diameter h3.In particular, this diameter can be equal to or smaller than the pin diameter Ds, so that the frictional engagement described above between this section 320b and the positioning pin 100 can be provided, especially before the positioning pin 100 is secured in the positioning pin receptacle 210. In other words, the positioning pin 100 and the locking recess 320 are designed such that when the positioning pin 100 is arranged within an outer circumference U of the bearing bushing 300 in the locking recess 320 (i.e., before being fastened in the positioning pin receptacle 210), a frictional fit (or a slight interference fit) is provided between the second section 320b of the locking recess 320 and the second section 130 of the positioning pin 100, and a clearance fit is provided between the first section 320a of the locking recess 320 and the first section 120 of the positioning pin 100.After fastening, a clearance fit is provided between the second section 130 of the positioning pin and the first section 320a (i.e., with diameter h3) of the retaining recess 320. Alternatively or additionally, a holding device can be provided to hold the positioning pin 100 in the retaining recess 320 before and during assembly in the bearing bushing 300, i.e., to secure it against unintentional movement. An interference fit can be provided between the first section 120 of the positioning pin 100 and the positioning pin receptacle 210 to reliably secure the positioning pin 100 in the bearing housing 200. The positioning pin receptacle 210 (or the housing bore 230; this will be explained in more detail later) can have a diameter h1, h2 which is equal to or less than the pin diameter Ds. The diameter h1, h2 can be less than the diameter h3 of the retaining recess 320. Since, according to the inventive design of the positioning pin 100 and the bearing bushing 300, as well as the inventive method 400, the positioning pin 100 is secured, in particular pressed, from the bearing bushing 300 into the positioning pin receptacle 210, a surface finish of the second section 130 can be achieved. In other words, grooves can be created in the surface of the first section 120 of the positioning pin 100 during pressing, which can provide better retention.However, during pressing in, the surface of the second section 130 can remain free of grooves (i.e., it is not scratched), which can lead to reduced wear between the bearing bushing 300 and the positioning pin 100. After pressing in, the positioning pin 100 therefore has a scratched or grooved part (e.g., the first section 120) and a substantially unscratched or groove-free part (e.g., the second section 130). The bearing bushing 300, measured in the axial direction 22 at the position of the retaining recess 320, can have a bushing diameter Db. This can be a maximum outer diameter of the bearing bushing 300. The pin length Ls is less than the bushing diameter Db. In particular, the pin length Ls is selected such that the positioning pin 100 does not extend beyond a maximum outer circumference U of the bearing bushing 300. This is important so that the bearing bushing 300, with the positioning pin 100 inserted, can be inserted into the bearing receptacle 220 in the axial direction 22. The bearing bushing 300 can also have a reduced outer diameter at the retaining recess 320 compared to the respective end sections of the bearing bushing 300, for example, to provide improved lubricating oil distribution or to enable a defined bearing surface in the bearing receptacle 220.However, in this case too, it is important that the pin length Ls is less than the largest outer diameter Db of the bearing bushing 300. The positioning pin 100 can have a first rounding or chamfer at its first end 101. The positioning pin 100 can have a second rounding or chamfer at its second end 102. The first rounding or chamfer and the second rounding or chamfer can be identical. The first rounding or chamfer, and / or the second rounding or chamfer, facilitates the insertion of the first section 120 into the positioning pin receptacle 210 during assembly, thereby reducing wear. The positioning pin 100 can also be inserted more easily into the locking recess 320. After fastening, wear between the locking recess 320 and the second section 130 can also be reduced. As shown in Figs. 2C, 4A, and 4B, the positioning pin 100, in particular the body 110, can be made of solid material. In some embodiments, the body can have a passage 170 extending along the longitudinal axis x from the first end 101 to the second end 102 (see Figs. 3A to 3C). In particular, the passage 170 is designed as a through-hole along the longitudinal axis X. The specific design and function of the passage 170 are explained in more detail below. The positioning pin 100, in particular the body 110, can have at least one tool receptacle 150 for coupling a tool 500 to the positioning pin 100. In some embodiments, the coupling can also include applying the tool 500 to the positioning pin 100 to exert a compressive force on it. In this case, the positioning pin 100 may not have a tool receptacle 150. The tool receptacle 150 can extend at least partially within the positioning pin 100 along its longitudinal axis x from the first end 101 to the second end 102, or vice versa. The tool receptacle can be formed in or on the outer circumference of the positioning pin 100. The tool receptacle 150 allows a tool to be coupled to the positioning pin 100 during assembly and / or disassembly, thus facilitating the respective process. The configurations of the bearing arrangements 10 according to Figures 2A to 4B are described in more detail below. As described above, the positioning pin receptacle 210 intersects the bearing receptacle 220 or opens into it. In particular, the positioning pin receptacle 210 is arranged transversely to the bearing receptacle 220. The bearing housing 200 can comprise a lubricant inlet section 240 and a lubricant outlet section 250. The lubricant inlet section 240 comprises a lubricant inlet 241 and a lubricant receptacle 242. Lubricant can be supplied to the bearing bushing 300 and / or the bearing receptacle 220 via the lubricant inlet section 240. The lubricant inlet section 240 can be connected to a lubricant supply. The lubricant outlet section 250 can have a lubricant outlet 251 to allow lubricant to be discharged from the bearing housing 200.The bearing housing 200 can have at least one housing bore 230 which opens into the bearing receptacle 220 and encompasses the positioning pin receptacle 210. The housing bore 230 can, in particular, extend transversely to the bearing receptacle 220 (i.e., orthogonal to the axial direction 22) and intersect it. The housing bore 230 can be designed to allow the insertion of a tool 500 to the positioning pin 100. As shown in the embodiments of Figures 2A to 3C, the housing bore 230 can extend from the lubricant inlet section 240 through the bearing receptacle 220 to the lubricant outlet section 250. In other words, in these embodiments, the housing bore 230 can encompass the lubricant inlet section 240 and the positioning pin receptacle 210 (see Figures 2A and 3A). Lubricant can be supplied to the bearing bushing 300 and / or the bearing receptacle 220 through the housing bore 230. The housing bore 230 can fluidically connect the lubricant inlet 241 to the bearing bushing 300 and / or the bearing receptacle 220. The positioning pin receptacle 210 can have a constant diameter. Although not shown in the figures. As shown, the positioning pin receptacle 210 can have a shoulder to provide a defined stop and position of the positioning pin 100 when pressing in the positioning pin 100. As shown in the embodiment of Fig. 2A, the housing bore 230 can extend from the lubricant inlet section 240 through the bearing receptacle 220 to the lubricant outlet section 250. The positioning pin receptacle 210 can be arranged between the bearing receptacle 220 and the lubricant outlet section 250. The retaining recess 320 can, as shown, be configured as a through-bore through the bearing bushing 300. The at least one housing bore 230 can have a first bore section 230a and a second bore section 230b. These can each run transversely (i.e., orthogonally) to the bearing receptacle 220 and, in particular, intersect or open into it. The bearing receptacle 220 can be arranged between the first bore section 230a and the second bore section 230b.In other words, the first bore section 230a and the second bore section 230b are arranged on opposite sides of the bearing receptacle 220, i.e., "above" in the case of the first bore section 230a and "below" in the case of the second bore section 230b, with respect to the bearing receptacle 220. The first bore section 230a can include the lubricant inlet section 240 or fluidically connect it to the bearing receptacle 220. The second bore section 230b can include or define the positioning pin receptacle 210. Consequently, in this embodiment, the lubricant inlet section 240 and the positioning pin receptacle 210 are located on different sides with respect to the bearing receptacle 220. The second bore section 230b, and in particular the section that can be configured as the positioning pin receptacle 210, can have a constant diameter.The second bore section 230b, in particular the positioning pin receptacle 210, can extend through the bearing housing 200 from the lubricant outlet section 250 into the bearing receptacle 220, or connect them. The second section 130 can extend at least partially into the retaining recess 320 of the bearing bushing 300. A first end section of the positioning pin 100 can extend at least partially from the second bore section 230b into the lubricant outlet section 250 (see Fig. 2B and Fig. 2C). These features make it easier to couple a tool to the first end section, thus facilitating the assembly and disassembly of the positioning pin 100. In some embodiments, the first end section can be part of the first section 120 (see Fig. 2A). In other words, the first section 120, comprising the end section of the positioning pin 100, can therefore be located in the positioning pin receptacle 210. As shown in Fig.As shown in Figure 2A, the first bore section 230a can have a lubricant supply section 230c, which fluidically connects the lubricant inlet section 240 to the bearing receptacle 220, or can be configured as a lubricant supply section. The first bore section 230a can have a first diameter h1, which is equal to or less than a pin diameter Ds. In particular, the first diameter h1 can be selected such that the positioning pin 100 cannot pass through the first bore section 230a. The first diameter h1 can be smaller than a second diameter h2 of the second bore section 230b. The second bore section 230b can have a constant diameter h2. The first diameter h1 can be smaller than the third diameter h3 of the retaining recess 320.The first diameter h1 of the first bore section 230a (and in particular of the supply section 230c) can be selected to ensure optimal lubricant supply to the bearing receptacle 220 and the bearing bushing 300. Since the positioning pin 100 is located in the bearing bushing 300 and can be assembled / disassembled as a bearing bushing assembly 11 by sliding it in the axial direction 22, the first diameter h1 does not need to be equal to or larger than the pin diameter Ds. In other words, the first diameter h1 is not dependent on the pin diameter Ds of the positioning pin 100. Consequently, the positioning pin can be designed to selectively adjust (e.g., throttle) the lubricant supply to the bearing bushing 300 and the bearing receptacle 220. Furthermore, in this configuration, the lubricant supply section 230c can be inclined (i.e., non-orthogonal) to the bearing receptacle 220 and / or have several subsections.This is because the positioning pin 100 does not need to pass through the lubricant inlet section 240 and the feed section 230c for fastening in the positioning pin receptacle 210. The first bore section 230a can have a first bore axis b1, and the second bore section 230b, in particular the positioning pin receptacle 210, can have a second bore axis b2. The bore axes b1 and b2 can be orthogonal to the axial direction 22. These can be coaxially aligned with each other (in the axial direction 22) or spaced apart from each other in the axial direction 22 (i.e., not coaxially aligned with each other). The lubricant inlet section 240 can be configured as a blind hole in the bearing housing 200. The lubricant supply section 230c can extend from the bottom of the blind hole to the bearing receptacle 220. The lubricant inlet section 240 can have a larger diameter than the lubricant supply section 230c. As shown in the embodiment in Figures 3A to 3C, the housing bore 230 can extend from the lubricant inlet section 240 into the bearing receptacle 220, or encompass the lubricant inlet section 240. The positioning pin receptacle 210 can be arranged between the bearing receptacle 220 and the lubricant inlet section 240. Both the lubricant inlet section 240 and the positioning pin receptacle 210 are thus arranged "above," i.e., on the same side relative to the bearing receptacle 220. The positioning pin receptacle 210 can fluidly connect the lubricant inlet section 240 to the bearing receptacle 220. As shown in Figure 3A, in this embodiment, a further housing bore, which is arranged on a side opposite the positioning pin receptacle 210 relative to the bearing receptacle 220, is not required.The lubricant inlet section 240 can be configured as a blind hole in the bearing housing 200, and the housing bore 230, in particular the positioning pin receptacle 210, can extend from the blind hole to the bearing receptacle 220. The housing bore 230, in particular the lubricant inlet section 240 and the positioning pin receptacle 210, are arranged and configured in the bearing housing 200 such that a tool 500 can be passed through the lubricant inlet section 240 (from "above") and coupled to the positioning pin 100. The tool holder 150 and the tool 500 can be designed (e.g. by means of a force-fit (friction-fit) and / or form-fit) such that the tool 500 can apply a tensile force to the positioning pin 100 in order to pull it out of the locking recess 320 towards the lubricant inlet section 240 and consequently press it into the positioning pin holder 210.As already described, the positioning pin 100 is attached such that the second section 130 engages in the retaining recess 320. The positioning pin receptacle 210 and the positioning pin 100 can be designed such that, when the positioning pin 100 is attached, the first section 120 is essentially flush with the bottom of the blind hole or countersunk to it. This allows a lubricant supply to be securely and easily attached to the lubricant inlet section 240 (for example, by means of a thread) and / or prevents lubricant backflow. So that, after the positioning pin 100 is attached in the positioning pin receptacle 210 according to the design shown in Fig.In the embodiment shown in Fig. 3A, where a supply of lubricant to the bearing bushing 300 and / or to the bearing receptacle 220 is provided, the positioning pin 100 can have the previously described passage 170, which extends along the longitudinal axis x from the first end 101 to the second end 102. In the embodiment shown in Fig. 3A, the positioning pin 100 can also include radial bores extending radially from the passage 170 and arranged at an axial position such that, in the assembled state, a lubricant flow is enabled between the outer circumference U of the bearing bushing 300 and the inner circumference of the bearing receptacle 220. However, in embodiments, the positioning pin 100 can also be made of solid material, as shown in Fig. 3A, for example, if further housing bores are provided in the bearing housing 200, which fluidically connect the lubricant inlet section 240 to the bearing receptacle 220. Figures 4A and 4B show a further embodiment. These show sectional views of the charging device 1 and bearing arrangement 10, cut in the radial direction 24. This embodiment can have all the features described above. Only the differences are explained in more detail below. In the embodiment shown there, the housing bore 230 in the bearing housing 200 is provided separately from, or spaced apart from, the lubricant inlet section 240. In other embodiments, however, the lubricant inlet section 240 can also open into the housing bore 230, for example, at a position between their respective ends (in particular between the bearing receptacle and an inlet of the housing bore 230). In the embodiment of Figures 4A and 4B, the housing bore 230 and the lubricant inlet section 240 are located at the same position in the axial direction 22.However, these can also be spaced apart from each other in the axial direction 22, i.e., at different, spaced-apart axial positions with respect to the sectional views of Fig. 2A and Fig. 3A. As shown in Fig. 4A, the lubricant outlet section 250 can have or define a longitudinal axis or reference axis Ref. The lubricant inlet section 240 can have a longitudinal axis c and include a lubricant supply section 235 to supply lubricant to the bearing receptacle 220 and / or bearing bushing 300. As shown in Fig. 4A, the lubricant inlet section 240 and lubricant outlet section 250 can be coaxial with each other, i.e., their longitudinal axes Ref and c can be arranged coaxially with each other. However, as shown in the embodiment of Fig. 4B, these can also be inclined to each other at a second angle β, measured in the circumferential direction 26 between the longitudinal axes Ref and c.In applications, the second angle β can be, for example, from 10° to 90°, and in particular from 30° to 60°. This allows the lubricant inlet section 240 and lubricant outlet section 250 to be positioned relative to each other as required for the application. As shown in Fig. 4A, the housing bore 230, encompassing the positioning pin receptacle 210, can be arranged circumferentially spaced from the lubricant inlet section 240 and / or lubricant outlet section 250 by a first angle α. In particular, the first angle α can be measured between a longitudinal axis b (or b1 and b2) of the housing bore 230 and the reference axis Ref (see Fig. 4A and Fig. 4B). In some applications, the first angle α can be, for example, from 10° to 180°, and in particular from 30° to 150°.Because the housing bore 230 can be arranged separately from the lubricant inlet section 240, particularly spaced apart in the circumferential direction 26 and / or in the axial direction 22, these components can be designed independently of one another depending on the required application. The bearing arrangement 10, in particular the components of the bearing housing 200, the positioning pin 100, and the bearing bushing 300, can have the configuration shown in Figures 2A to 2C, as shown in Figures 4A and 4B. Alternatively, however, the configuration described in Figures 3A to 3C can also be provided here. A tool 500 can be fed to the positioning pin 100 through the housing bore 230, coupled to it, and then, depending on the configuration, secured in the positioning pin receptacle 210 by a compressive or tensile force.In the event that a pressing force is required, the coupling can also simply involve applying the tool to the positioning pin 100 to exert a pressing force on it. As shown in Figs. 4A and 4B, the bearing assembly 10 can have a sealing element 270 with which the housing bore 230 can be sealed. This ensures that lubricant supplied to the bearing assembly 10 through the lubricant inlet section 240 does not escape through the housing bore 230. Although not shown in Figs. 4A and 4B, and with reference to the sectional views in Figs. 2A and 3A, it is also possible for the lubricant inlet section 240 to be arranged at an angle to the housing bore 230 and to open into it. For example, the housing bore 230 can be, e.g. with reference to the sectional views of Fig. 2A and Fig. 3A, perpendicular to the axial direction 22 or .The lubricant inlet section 240 runs at an angle of approximately 90° to the axis of rotation R. It can extend from the housing bore 230, at a position at either end of the housing bore 230, through the bearing housing 200 at an angle to the axial direction 22 or axis of rotation R. This angle can be, for example, from 45° to 80° measured to the axial direction 22 or axis of rotation R. The following describes in more detail the process steps of the above-described method for manufacturing or assembling the bearing arrangement 10 for the charging device 1. The bearing arrangement 10 can have all the features described above. Although the method 400 and process steps in Figures 5A to 6D are shown particularly for the embodiments of Figures 2A to 2C, it can also be applied to the embodiments of Figures 3A to 3C, as well as 4A and 4C. As already described above, the method comprises providing 410 the bearing bushing assembly 11 comprising the positioning pin 100 and the bearing bushing 300, wherein the bearing bushing 300 includes a retaining recess 320 in which the positioning pin 100 is inserted such that the positioning pin 100 is located within an outer circumference U of the bearing bushing 300 (see Figure 5A). As shown in Figure 5A, the bearing bushing 300 is located within the outer circumference U of the bearing bushing 300.As shown in Fig. 5B, the method 400 comprises arranging 420 the bearing bushing assembly 11 in the axially extending bearing receptacle 220 of the bearing housing 200 such that the positioning pin receptacle 210 of the bearing housing 200 is aligned with the retaining recess 320. As shown in Figs. 5C and 5D, the method 400 comprises fastening 430, in particular pressing in, the first section 120 of the positioning pin 100 from the bearing bushing 300 into the positioning pin receptacle 210. The provision 410 of the bearing bushing assembly 11 can include the provision of the positioning pin 100, the provision of the bearing bushing 300, and the insertion (or placement) of the positioning pin 100 into the retaining recess 320 such that the positioning pin 100 is located within the outer circumference U of the bearing bushing 300. If the retaining recess 320 is designed as a through-hole, the positioning pin 300 can be inserted into the retaining recess 320 from both sides, particularly since the positioning pin 300 can have a constant pin diameter Ds. The arrangement 420 of the bearing bushing assembly 11 in the bearing receptacle 220 can include inserting the bearing bushing assembly 11 axially 22 into the bearing receptacle 220 and subsequently aligning the positioning pin receptacle 210 with the locking recess 320. This also aligns the positioning pin 100 coaxially with the positioning pin receptacle 210.For all embodiments shown in Figures 2A to 4B, the fastening 430 can include inserting or feeding 431 a tool 500 through the housing bore 230 to the bearing receptacle 220 and coupling the tool 500 to the positioning pin 100. In some embodiments, the coupling can also include applying pressure to the positioning pin 100 by pressing the tool 500 against it. In this case, the positioning pin 100 does not include a tool receptacle 150. In particular, the tool receptacle 150 is also aligned with the housing bore 230. In some embodiments (see, for example, Figure 2B), it is also possible to feed the tool 500 to the positioning pin 100 through the lubricant outlet section 250. The fastening 430 can include the fastening 432, in particular pressing in, the first section 120 of the positioning pin 100 from the bearing bushing 300 into the positioning pin receptacle 210 using the tool 500. In the embodiment shown in Figures 2A to 2C, the tool 500 can be guided through the lubricant inlet section 240 and the housing bore 230 (see also Figure 5C) to the positioning pin 100 and coupled to it. The fastening 430 can include fastening, in particular pressing, the first section 120 of the positioning pin 100 out of the bearing bushing 300 towards the lubricant outlet section 250 into the positioning pin receptacle 210 by means of a compressive force with the tool 500. In particular, a holding tool can also be provided during assembly / disassembly, which is fed through the lubricant outlet section 250 into the positioning pin receptacle 210 to serve as a stop on the positioning pin 100, opposite the tool 500.Additionally or alternatively, the tool 500 itself may have a stop that can abut the bearing housing 200, thus limiting the translation of the tool 500 through the bearing housing 200 to a specific position. During pressing, the tool 500, with the stop or holding tool, can define and control the position of the positioning pin 100 in the positioning pin receptacle. During disassembly, the positioning pin 100 can be removed in two ways: either the positioning pin 100 can be pushed "downwards" out of the positioning pin receptacle 210 by the tool 500 and removed through the lubricant outlet section 250, or the positioning pin 100 can be moved back into the bearing bushing 300 by the tool 500 or holding tool, so that the bearing bushing assembly 11 is reassembled, and the bearing bushing assembly 11 can then be moved out of the bearing receptacle 220.In the embodiment shown in Figures 3A to 3C, the fastening 430 can comprise fastening, in particular pressing, the first section 120 of the positioning pin 100 out of the bearing bushing 300 towards the lubricant inlet section 240 into the positioning pin receptacle 210 by means of a tensile force with the tool 500. In particular, in this embodiment, the tool 500 can be guided through the lubricant inlet section 240 and the housing bore 230 to the positioning pin 100, coupled to it, and pressed into the positioning pin receptacle 210 by means of a tensile force. Fastening by means of a tensile force is also possible for the embodiment shown in Figures 3A to 3C.2A to 2C are possible, for example, by guiding the tool 500 through the lubricant outlet section 250 and the second bore section 230b to the positioning pin 100, coupling it to the pin, and then pressing the pin into the positioning pin receptacle 210 by applying a tensile force towards the lubricant outlet section 250. Naturally, in this case, the tool receptacle 150 is also aligned accordingly with the second bore section 230b. Securing by applying a tensile force is also possible for the configurations shown in Figures 4A and 4B. In this case, the tool 500 is guided through the housing bore 230 to the positioning pin 100 and coupled to it. The positioning pin 100 is then pressed into the positioning pin receptacle 210 by applying a tensile force with the tool 500 towards the housing bore 230.In these configurations, during disassembly, the positioning pin 100 can be moved back into the locking recess 320 from the positioning pin receptacle 210 by means of a pressing force. In the embodiments shown in Figs. 4A and 4B, assembly and disassembly can be carried out as for the embodiments shown in Figs. 2A to 2C and 3A to 3C. The difference, however, is that the tool 500 is always fed to the positioning pin via the housing bore 230, i.e., not through the lubricant inlet section 240 and / or lubricant outlet section 250. Following the fastening of the positioning pin 100, the shaft assembly can be mounted in the bearing arrangement 10 (see Figs. 6A to 6D). Method 400 comprises providing the shaft assembly, comprising the shaft 30 and the turbine wheel 62. Method 400 includes inserting the shaft assembly 450 axially 22 into the shaft bore 310 such that the shaft 30 is supported in the shaft bore 310 by means of a first bearing section 31 of the shaft 30. In particular, the shaft assembly is inserted axially 22 into the bearing arrangement 10 until the turbine-side shaft shoulder abuts axially against the bearing bushing 300 (in particular its turbine-side end face). The method can then include arranging, in particular pressing, a sealing bushing 80 onto at least a second bearing section 32 of the shaft 30 (see Fig. 6A to 6D).6B), in particular such that the bearing bushing 300 is axially supported between the turbine-side shaft shoulder and the sealing bushing 80 to limit movement of the shaft assembly in the axial direction 22. The first bearing section 31 and the at least one second bearing section 32 are arranged between the first compressor-side shaft shoulder. The sealing bushing 80 is axially supported on the compressor-side shaft shoulder. The method 400 can further include the arrangement 470, in particular pressing, of a compressor wheel 52 onto the at least one second bearing section 32 of the shaft 30, such that it is axially supported on the sealing bushing (80). A rear face of the compressor wheel 52 can bear axially against the sealing bushing 80. In particular, the compressor wheel 52 can be pressed onto the at least one second bearing section 32 of the shaft 30 using a second tool 500b.Method 400 can also include the fastening 480 of a locking element 90 (e.g., a screw-on locking nut) to the mounting section, and in particular such that the compressor wheel 52 is axially clamped between the sealing bushing 80 and the locking element 90. The locking element 90 transmits a force in the axial direction 22 through the compressor wheel 52 and the sealing bushing 80 into the compressor-side shaft shoulder. In other words, these components are clamped between the locking element 90 and the compressor-side shaft shoulder. Disassembly of the shaft assembly can be carried out in reverse order. Although the present invention has been described above and is defined in the appended claims, it should be understood that the invention can alternatively also be defined according to the following embodiments: 1. Method (400) for manufacturing a bearing arrangement (10), in particular for a charging device (1), comprising: a) providing (410) a bearing bushing assembly (11) comprising a positioning pin (100) and a bearing bushing (300), wherein the bearing bushing (300) comprises a retaining recess (320) in which the positioning pin (100) is inserted such that the positioning pin (100) is located within an outer circumference (U) of the bearing bushing (300), b) arranging (420) the bearing bushing assembly (11) in a bearing receptacle (220) of a bearing housing (200) extending in an axial direction (22) such that a positioning pin receptacle (210) of the bearing housing (200) is connected to the The safety recess (320) is aligned.c) Securing (430), in particular pressing in, a first section (120) of the positioning pin (100) from the bearing bushing (300) into the positioning pin receptacle (210). 2. Method (400) according to embodiment 1, wherein the positioning pin (100) has a constant pin diameter (Ds) from a first end (101) to a second end (102) of the positioning pin (100), and wherein a pin length (Ls) of the positioning pin (100) is greater than an inner diameter (Di) of the bearing bushing (300). 3. Method (400) according to embodiment 1 or embodiment 2, wherein the locking recess (320) is configured as a transverse bore through the bearing bushing (300), and wherein, after fastening (430), a second section (130) of the positioning pin (100) extends at least partially into the locking recess (320) for securing the bearing bushing (300). 4. Method (400) according to any of the preceding embodiments,wherein providing (410) the bearing bushing assembly (11) comprises: providing the positioning pin (100), providing the bearing bushing (300), inserting the positioning pin (100) into the retaining recess (320) such that the positioning pin (100) is located within the outer circumference (U) of the bearing bushing (300). 5. Method (400) according to any of the preceding embodiments, wherein a clearance fit is provided between the positioning pin (100) and the retaining recess (320). 6. Method (400) according to any of the preceding embodiments, wherein the bearing bushing (300) comprises a shaft bore (310) for rotatably supporting a shaft (30), and wherein the retaining recess (320) extends transversely through the bearing bushing (300) to the shaft bore (310). 7. Method (400) according to any of the preceding embodiments,wherein the arrangement (420) of the bearing bushing assembly (11) in the bearing receptacle (220) comprises: inserting the bearing bushing assembly (11) in the axial direction (22) into the bearing receptacle (220) and subsequently aligning the positioning pin receptacle (210) with the locking recess (320).8. Method (400) according to any of the preceding embodiments, wherein the bearing housing (200) has a lubricant inlet section (240), a lubricant outlet section (250) and a housing bore (230) which opens into the bearing receptacle (220) and includes the positioning pin receptacle (210), wherein the fastening (430) comprises: inserting (431) a tool (500) through the housing bore (230) to the bearing receptacle (220) and coupling the tool (500) to the positioning pin (100), and fastening (432), in particular pressing in,9. Method (400) according to embodiment 8, wherein the housing bore (230) in the bearing bushing (300) is arranged separately from the lubricant inlet section (240), in particular spaced apart in the circumferential direction (26) and / or in the axial direction (22) from the lubricant inlet section (240). 10. Method (400) according to embodiment 8, wherein the housing bore (230) extends from the lubricant inlet section (240) into the bearing receptacle (220) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant inlet section (240), wherein the fastening (430) comprises: fastening, in particular pressing in,11. Method (400) according to embodiment 8, wherein the housing bore (230) extends from the lubricant inlet section (240) through the bearing receptacle (220) to the lubricant outlet section (250) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant outlet section (250), wherein the fastening (430) comprises: fastening, in particular pressing, the first section (120) of the positioning pin (100) from the bearing bushing (300) towards the lubricant outlet section (250) into the positioning pin receptacle (210) by a compressive force with the tool (500). 12. Method (400) according to any of the preceding embodiments,further comprising: providing (440) a shaft assembly comprising a shaft (30) and a turbine wheel (62) which is rotationally fixed to a first end of the shaft (30), inserting (450) the shaft assembly in the axial direction (22) into the shaft bore (310) such that the shaft (30) is supported in the shaft bore (310) by means of a first bearing section (31) of the shaft (30). 13. Method (400) according to embodiment 12, comprising: arranging (460) a sealing bushing (80) on at least a second bearing section (32) of the shaft (30) such that the bearing bushing (300) is axially supported between a turbine-side shaft shoulder and the sealing bushing (80) in order to limit movement of the shaft assembly in the axial direction. 14. Method (400) according to embodiment 13, comprising: arranging (470) a compressor wheel (52) on the at least one second bearing section (32) of the shaft (30),so that it is axially supported on the sealing bushing (80). 15. Method (400) according to embodiment 14, wherein the at least one second bearing section (32) extends through the compressor wheel (52) on the compressor side and wherein the shaft assembly comprises a fastening section on a compressor-side end section of the shaft (30), wherein the method (400) comprises: fastening (480) a locking element (90) to the fastening section such that the compressor wheel (52) is axially clamped between the sealing bushing (80) and the locking element (90). 16. Bearing arrangement (10) for a charging device (1), comprising: a bearing housing (200) comprising a positioning pin receptacle (210) and a bearing receptacle (220) extending in an axial direction (22), a bearing bushing (300) comprising a retaining recess (320), wherein the bearing bushing (300) is arranged in the bearing receptacle (220) such thatthat the positioning pin receptacle (210) is aligned with the retaining recess (320), a positioning pin (100), wherein a first section (120) of the positioning pin (100) is secured in the positioning pin receptacle (210) and wherein a second section (130) of the positioning pin (100) extends at least partially into the retaining recess (320), wherein the positioning pin (100) and the bearing bushing (300) are designed such that the positioning pin (100), in particular when it is removed from the positioning pin receptacle (210), can be received in the retaining recess (320) within an outer circumference (U) of the bearing bushing (300). 17. Bearing arrangement (10) according to embodiment 16, wherein an interference fit is provided between the first section (130) of the positioning pin (100) and the positioning pin receptacle (210),and wherein a clearance fit is provided between the second section (120) of the positioning pin (100) and the locking recess (320). 18. Bearing arrangement (10) according to embodiment 16 or embodiment 17, wherein the bearing bushing (300) comprises a shaft bore (310) for rotatably supporting a shaft (30) and wherein the locking recess (320) intersects the shaft bore (310), in particular wherein the locking recess (320) extends transversely to the shaft bore (310) through the bearing bushing (300). 19. Bearing arrangement (10) according to any one of embodiments 16 to 18, wherein the positioning pin (100) has a constant pin diameter (Ds) from a first end (101) to a second end (102) of the positioning pin (100), and wherein a pin length (Ls) of the positioning pin (100) is greater than an inner diameter (Di) of the bearing bushing (300). 20. Bearing arrangement (10) according to embodiment 19.wherein the pin diameter (Ds) is smaller than a third diameter (h3) of the locking recess (320). 21. Bearing arrangement (10) according to any one of embodiments 16 to 20, wherein the bearing bushing (300), in particular measured at the locking recess (320), has a bushing diameter (Db) wherein a pin length (Ls) is less than the bushing diameter (Db). 22. Bearing arrangement (10) according to any one of embodiments 16 to 21, wherein the positioning pin receptacle (210) intersects the bearing receptacle (220), and in particular wherein the positioning pin receptacle (210) is arranged transversely to the bearing receptacle (220). 23. Bearing arrangement (10) according to any one of embodiments 16 to 22, wherein the bearing housing (200) has a lubricant inlet section (240), a lubricant outlet section (250) and a housing bore (230),which opens into the bearing receptacle (220) and includes the positioning pin receptacle (210). 24. Bearing arrangement (10) according to embodiment 23, wherein the housing bore (230) in the bearing housing (200) is arranged separately from the lubricant inlet section (240), in particular spaced apart from the lubricant inlet section (240) in the circumferential direction (26) and / or in the axial direction (22). 25. Bearing arrangement (10) according to embodiment 23, wherein the housing bore (230) extends from the lubricant inlet section (240) into the bearing receptacle (220) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant inlet section (240). 26. Bearing arrangement (10) according to embodiment 23,wherein housing bore (230) extends from the lubricant inlet section (240) through the bearing receptacle (220) to the lubricant outlet section (250) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant outlet section (250). 27. Bearing arrangement (10) according to embodiment 26, wherein the housing bore (230) has a first bore section (230a) and a second bore section (230b) which are coaxial to each other, wherein the bearing receptacle (220) is arranged between the first bore section (230a) and the second bore section (230b), wherein the first bore section (230a) connects the lubricant inlet section (240) to the bearing receptacle (220) and wherein the second bore section (230b) comprises the positioning pin receptacle (210) and connects the bearing receptacle (220) to the lubricant outlet section. 28. Bearing arrangement according to embodiment 27,wherein the first bore section (230a) has a first diameter (h1) which is equal to or less than a pin diameter (Ds). 29. Bearing arrangement (10) according to embodiment 27 or embodiment 28, wherein the second bore section (230b) has a constant second diameter (h2). 30. Bearing arrangement (10) according to any one of embodiments 27 to 29, wherein a first end section of the positioning pin (100) extends at least partially from the second bore section (230b) into the lubricant outlet section (250). 31. Bearing arrangement (10) according to any one of embodiments 16 to 30, wherein the positioning pin (100) comprises a tool receptacle (150) which is designed to be coupled to a tool (500).wherein the tool holder extends along a longitudinal axis (x) of the positioning pin (100) from a first end (101) at least partially into the positioning pin (100). 32. Method (400) according to any one of embodiments 1 to 15, wherein the bearing arrangement (10) is a bearing arrangement according to any one of embodiments 16 to 31. 33. Charging device (1) for an internal combustion engine or a fuel cell, comprising: a bearing arrangement (10) according to any one of the preceding embodiments 16 to 31, a shaft (30) rotatably mounted in the bearing arrangement (10), a compressor (50) with a compressor wheel (52), and a turbine (60) with a turbine wheel (62), wherein the compressor wheel (52) and the turbine wheel (62) are rotationally fixed to the shaft (30) at opposite ends of the shaft (30). 34. Charging device (1) according to embodiment 33,wherein the turbine (60) comprises: a turbine housing (61) defining a feed channel (63) and an outlet channel (64), wherein the turbine wheel (62) is arranged between the feed channel (63) and the outlet channel (64), and a guide device (70) which is arranged radially outside the turbine wheel (62) in the turbine housing (61). 35. Charging device (1) according to embodiment 33 or embodiment 34, wherein the compressor (50) comprises a compressor housing (51) in which the compressor wheel (52) is arranged, and wherein the compressor housing (51) and the turbine housing (61) are coupled to the bearing housing (200) on opposite sides. 36. Charging device (1) according to any one of embodiments 33 to 35, comprising a sealing bushing (80) which is clamped in the axial direction (22) between the compressor wheel (52) and a compressor-side shoulder of the shaft (30). 37. Charging device (1) according to embodiment 36,wherein the shaft (30) is supported in the shaft bore (310) by means of a first bearing section (31) of the shaft (30), wherein the sealing bushing (80) is arranged on at least a second bearing section (32) of the shaft (30), and wherein the compressor-side shaft shoulder is arranged between the first bearing section (31) and the second bearing section (32). 38. Charging device (1) according to embodiment 36 or embodiment 37, wherein the bearing bushing (300) is axially supported in the axial direction (22) between the sealing bushing (80) and a turbine-side shaft shoulder such that movement of the shaft (30) in the axial direction (22) is limited. 39. Charging device (1) according to embodiment 37 or embodiment 38, wherein the at least one second bearing section (32) extends through the compressor wheel (52) on the compressor side and wherein the shaft (30) comprises a fastening section on a compressor-side end section of the shaft (30),wherein a locking element (90) is coupled to the fastening section in such a way that the compressor wheel (52) and the sealing bushing (80) are axially clamped between the compressor-side shaft shoulder and the locking element (90).

Claims

Method (400) for manufacturing a bearing arrangement (10), in particular for a charging device (1), comprising: a) providing (410) a bearing bushing assembly (11) comprising a positioning pin (100) and a bearing bushing (300), wherein the bearing bushing (300) comprises a retaining recess (320) in which the positioning pin (100) is inserted such that the positioning pin (100) is located within an outer circumference (U) of the bearing bushing (300); b) arranging (420) the bearing bushing assembly (11) in a bearing receptacle (220) of a bearing housing (200) extending in an axial direction (22) such that a positioning pin receptacle (210) of the bearing housing (200) is aligned with the retaining recess (320); c) fastening (430), in particular by pressing in, a first section (120) of the Positioning pin (100) from the bearing bushing (300) into the positioning pin receptacle (210). Method (400) according to claim 1, wherein the positioning pin (100) has a constant pin diameter (Ds) from a first end (101) to a second end (102) of the positioning pin (100), and wherein a pin length (Ls) of the positioning pin (100) is greater than an inner diameter (Di) of the bearing bushing (300). Method (400) according to claim 1 or claim 2, wherein the provision (410) of the bearing bushing assembly (11) comprises: providing the positioning pin (100), providing the bearing bushing (300), inserting the positioning pin (100) into the retaining recess (320) such that the positioning pin (100) is located within the outer circumference (U) of the bearing bushing (300). Method (400) according to any one of the preceding claims, wherein the arrangement (420) of the bearing bushing assembly (11) in the bearing receptacle (220) comprises: inserting the bearing bushing assembly (11) in the axial direction (22) into the bearing receptacle (220) and subsequently aligning the positioning pin receptacle (210) with the locking recess (320). Method (400) according to any one of the preceding claims, wherein the bearing housing (200) has a lubricant inlet section (240), a lubricant outlet section (250) and a housing bore (230) which opens into the bearing receptacle (220) and includes the positioning pin receptacle (210), wherein the fastening (430) comprises: inserting (431) a tool (500) through the housing bore (230) to the bearing receptacle (220) and coupling the tool (500) with the positioning pin (100), and fastening (432), in particular pressing, the first section (120) of the positioning pin (100) from the bearing bushing (300) into the positioning pin receptacle (210) using the tool (500). Method (400) according to claim 5, wherein the housing bore (230) extends from the lubricant inlet section (240) into the bearing receptacle (220) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant inlet section (240), wherein the fastening (430) comprises: fastening, in particular pressing in, the first section (120) of the positioning pin (100) from the bearing bushing (300) towards the lubricant inlet section (240) into the positioning pin receptacle (210) by a tensile force with the tool (500). Method (400) according to claim 5, wherein the housing bore (230) extends from the lubricant inlet section (240) through the bearing receptacle (220) to the lubricant outlet section (250) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant outlet section (250), wherein the fastening (430) comprises: fastening, in particular pressing in, the first section (120) of the positioning pin (100) from the bearing bushing (300) towards the lubricant outlet section (250) into the positioning pin receptacle (210) by a compressive force with the tool (500). Bearing arrangement (10) for a charging device (1), comprising: a bearing housing (200) comprising a positioning pin receptacle (210) and a bearing receptacle (220) extending in an axial direction (22); a bearing bushing (300) comprising a retaining recess (320), wherein the bearing bushing (300) is arranged in the bearing receptacle (220) such that the positioning pin receptacle (210) is aligned with the retaining recess (320); a positioning pin (100), wherein a first section (120) of the positioning pin (100) is secured in the positioning pin receptacle (210) and wherein a second section (130) of the positioning pin (100) extends at least partially into the retaining recess (320), wherein the retaining recess (320) comprises a first section (320a) and a second opposing section (320b) in the bearing bushing (300) comprising, wherein the positioning pin (100) and the bearing bushing (300) are designed such that the positioning pin (100),especially when it is removed from the positioning pin receptacle (210), it can be received in the retaining recess (320) within an outer circumference (U) of the bearing bushing (300). Bearing arrangement (10) according to claim 8, wherein the positioning pin (100) has a constant pin diameter (Ds) from a first end (101) to a second end (102) of the positioning pin (100), and wherein a pin length (Ls) of the positioning pin (100) is greater than an inner diameter (Di) of the bearing bushing (300). Bearing arrangement (10) according to claim 8 or claim 9, wherein the bearing housing (200) has a lubricant inlet section (240), a lubricant outlet section (250) and a housing bore (230) which opens into the bearing receptacle (220) and includes the positioning pin receptacle (210). Bearing arrangement (10) according to claim 10, wherein the housing bore (230) in the bearing housing (200) is arranged separately from the lubricant inlet section (240), in particular spaced apart in the circumferential direction (26) and / or in the axial direction (22) from the lubricant inlet section (240). Bearing arrangement (10) according to claim 10, wherein the housing bore (230) extends from the lubricant inlet section (240) through the bearing receptacle (220) to the lubricant outlet section (250) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant outlet section (250), wherein the housing bore (230) has a first bore section (230a) and a second bore section (230b) which are coaxial to each other, wherein the bearing receptacle (220) is arranged between the first bore section (230a) and the second bore section (230b), wherein the first bore section (230a) connects the lubricant inlet section (240) to the bearing receptacle (220) and wherein the second bore section (230b) comprises the positioning pin receptacle (210) and connects the bearing receptacle (220) to the lubricant outlet section. Bearing arrangement (10) according to claim 12, wherein the first bore section (230a) has a first diameter (h1) which is equal to or less than a pin diameter (Ds), and wherein the second bore section (230b) has a constant second diameter (h2). Bearing arrangement (10) for a charging device (1), comprising: a bearing housing (200) comprising a positioning pin receptacle (210) and a bearing receptacle (220) extending in an axial direction (22); a bearing bushing (300) comprising a retaining recess (320), wherein the bearing bushing (300) is arranged in the bearing receptacle (220) such that the positioning pin receptacle (210) is aligned with the retaining recess (320); a positioning pin (100), wherein a first section (120) of the positioning pin (100) is fixed in the positioning pin receptacle (210) and wherein a second section (130) of the positioning pin (100) extends at least partially into the retaining recess (320); wherein the positioning pin (100) and the bearing bushing (300) are designed such that the positioning pin (100), in particular when it emerges from the Positioning pin holder (210) is removed,in the retaining recess (320) within an outer circumference (U) of the bearing bushing (300), wherein the bearing housing (200) has a lubricant inlet section (240), a lubricant outlet section (250) and a housing bore (230) which opens into the bearing receptacle (220) and includes the positioning pin receptacle (210), wherein the housing bore (230) extends from the lubricant inlet section (240) into the bearing receptacle (220) and the positioning pin receptacle (210) is arranged between the bearing receptacle (220) and the lubricant inlet section (240). Charging device (1) for an internal combustion engine or a fuel cell, comprising: a bearing arrangement (10) according to any one of the preceding claims 8 to 14, a shaft (30) rotatably mounted in the bearing arrangement (10), a compressor (50) with a compressor wheel (52), and a turbine (60) with a turbine wheel (62), wherein the compressor wheel (52) and the turbine wheel (62) are non-rotatably coupled to the shaft (30) at opposite ends of the shaft (30).

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