Rolling bearing for a rolling bearing arrangement, rolling bearing arrangement with the rolling bearing and method for mounting a rolling bearing in a receptacle of a housing of a rolling bearing arrangement

Abstract

Rolling bearing arrangement (10) with a housing (2) and with a rolling bearing (1), wherein the rolling bearing comprises an inner part, an outer part and a plurality of rolling elements, wherein the outer part and the inner part define a main axis (3), wherein the outer part has a first raceway and the inner part has a second raceway, wherein the rolling elements can roll on the raceways, wherein the outer part has an outer surface region (9), wherein the outer surface region (9) radially surrounds the first raceway at least in sections, wherein the outer surface region (9) forms a cone or a cone around the main axis (3), wherein the rolling bearing (1) is accommodated in a conical or cone-shaped receptacle (6) of the housing (2), wherein an inner surface (7) delimits the receptacle (6) at least in sections, wherein the outer surface region (9) is arranged in contact with the inner surface (7), characterized in that a required bearing clearance is set by a targeted contact of the outer surface area (9) on the inner surface (7) depending on an axial displacement path of the rolling bearing (1) into the receptacle (6).

Description

[0001] The invention relates to a rolling bearing for a rolling bearing assembly. The rolling bearing has an inner part, an outer part, and a plurality of rolling elements, wherein the outer part and the inner part define a main axis. The outer part has a first raceway, and the inner part has a second raceway, on which the rolling elements can roll. The outer part has an outer surface region that radially surrounds the first raceway, at least in sections. The invention also relates to a rolling bearing assembly with a rolling bearing and a method for mounting a rolling bearing in a receptacle of a housing of a rolling bearing assembly.

[0002] Rolling bearings are often mounted in a specially designed mount, such as a housing or sleeve. This involves adjusting the required bearing clearance. For example, the German patent document DE 1 069 434 B proposes, to adjust a possible zero clearance of a rolling bearing, forming a crowned outer race on its outer surface and pressing it into a conical sleeve so that only its maximum diameter contacts the conical sleeve.

[0003] The publication DE 10 2012 203 789 A1 discloses a rolling bearing with a housing, a plurality of rolling elements, and a bearing ring that is pressed into a housing seat and radially and axially fixed therein. The bearing ring is formed as a sheet metal part and exhibits elastic deformation properties. By means of an axial raceway section, the bearing ring is elastically preloaded against the rolling elements. By changing the shape of the raceway section, it can thus adapt widely to changing environmental conditions and to changes in the geometry of the rolling bearing.

[0004] DE 18 00 673 A describes a tapered roller bearing with multiple tapered rollers, with an annular inner sleeve and an annular outer sleeve, both of which are tapered to match the cone of the tapered rollers. The inner sleeve has outwardly turned edge portions, and the outer sleeve has inwardly turned edge portions that abut each other at circumferential end surfaces and, together with a support ring of the tapered roller bearing, provide a seal.

[0005] The publication DE 10 2013 223 677 A1 discloses a rolling element ring with rolling elements that roll in an outer ring designed as a sleeve. To achieve effective electrical insulation, the sleeve is formed from a composite material with at least one outer part, an inner part, and an insulating layer, which insulates the outer and inner parts from each other. The outer ring has a cylindrical section, a radial section, and a conical section. The radial section serves as an axial stop on a stationary bearing mount and thus specifies the point to which the rolling bearing must be inserted into the bearing mount.

[0006] The publication DE 10 2014 213 880 A1 describes a bearing ring of a rolling bearing with a raceway for rolling elements, which is machined into a ring base body and has a cylindrical mounting surface facing away from the raceway. A separate wedge-shaped component is provided that has or forms the cylindrical mounting surface. To adjust a bearing seat, the component can be moved axially on a conical counter surface of the ring base body.

[0007] The object of the invention is to ensure a secure bearing seat and the required bearing clearance of a rolling bearing in a simple and reliable manner. This object is achieved by a rolling bearing assembly with a rolling bearing having the features of claim 1 and by a method for mounting a rolling bearing in a receptacle of a housing of a rolling bearing assembly having the features of claim 3. Preferred or advantageous embodiments of the invention are evident from the subclaims, the following description, and / or the accompanying figures.

[0008] A rolling bearing for a rolling bearing assembly is proposed. The rolling bearing assembly can be intended, for example, for industrial applications, in particular for supporting conveyor belts. The rolling bearing has an inner part, an outer part, and a plurality of rolling elements. The inner part is preferably designed as an inner ring of the rolling bearing. The outer part is designed, in particular, as an outer ring of the rolling bearing. The outer part and the inner part define a main axis, wherein they are arranged, in particular, concentrically and / or coaxially with one another.

[0009] The rolling elements are, for example, balls or rollers, which are optionally mounted for rotation in a cage of the rolling bearing. The outer part has a first raceway and the inner part has a second raceway. The rolling elements can roll or roll along the raceways.

[0010] The outer part has an outer surface region. The outer surface region preferably forms part of an outer surface of the outer part. In particular, the outer surface region is formed as an outer circumferential surface of the outer part. The outer surface region radially surrounds the first raceway, at least in sections.

[0011] It is intended that the outer surface region forms a cone or a taper around the main axis. In particular, the outer surface region extends obliquely and / or at an angle to the main axis in an axial direction relative to the main axis.

[0012] In one possible embodiment of the invention, the outer part is designed to be rotatable about the main axis; in particular, the outer part can rotate about the main axis. The inner part is preferably arranged in a rotationally fixed manner; in particular, the inner part cannot rotate about the main axis.

[0013] One subject of the invention is a rolling bearing assembly comprising a housing and the rolling bearing as described above. The rolling bearing is accommodated in the housing. It is advantageous that the rolling bearing is mounted in the housing, particularly in a housing receptacle provided for this purpose, with the required bearing clearance. This avoids, in particular, the expansion of the inner part when adjusting the required bearing clearance.

[0014] One embodiment of the invention provides that the housing has a conical or cone-shaped receptacle for the rolling bearing. The housing has an inner surface which surrounds the receptacle and / or delimits it at least in sections. Preferably, the rolling bearing is received in the receptacle. The rolling bearing is advantageously arranged in the receptacle with the required bearing clearance. The cone or cone of the outer surface region is in particular designed to fit or substantially fit the conical or cone-shaped receptacle, such that the outer part can be arranged in the receptacle with an exact fit or substantially an exact fit. The outer surface region is arranged at least in sections, preferably in full contact with the inner surface of the housing.

[0015] In an embodiment of the invention, the housing has a cylindrical receptacle for the rolling bearing. Optionally, the rolling bearing arrangement, particularly if the housing has the cylindrical receptacle for the rolling bearing, comprises a hollow rotating part. For example, the rotating part is designed as a sleeve, optionally as an adapter sleeve. Preferably, the rotating part is arranged in the receptacle. For this purpose, the rotating part preferably has a cylindrical outer side contour that fits or substantially fits the cylindrical receptacle. In particular, a radial outer side of the rotating part is arranged at least partially, preferably completely, in contact with the inner surface of the housing. In particular, the rotating part is arranged in a press fit in the receptacle.

[0016] In one possible implementation of the invention, the rotating part has a preferably radially inner contact surface. The contact surface preferably at least partially defines a cavity of the rotating part. The cavity is preferably conical or tapered around the main axis. The cone or tapered portion of the outer surface is particularly configured to fit or substantially fit the conical or tapered additional receptacle.

[0017] In another possible implementation of the invention, the rotating part and the rolling bearing are accommodated together in the receptacle. Preferably, the outer surface area of ​​the outer part is arranged in full contact with the contact surface of the rotating part. In particular, the outer part is arranged in the cavity with a precise fit or a substantially precise fit. It is advantageous that the rolling bearing is arranged in the cavity of the rotating part with the required bearing clearance.

[0018] A further subject of the invention is a method for mounting a rolling bearing in a housing of a rolling bearing assembly. The rolling bearing assembly is designed according to the above description and / or according to one of claims 1 or 2.

[0019] During the process, the rolling bearing is pushed axially into the housing. This creates a tight bearing seat, optionally with the required bearing clearance. The bearing seat is preferably formed between the tapered or conical outer surface area of ​​the outer part and the tapered or conical inner surface of the housing. In particular, the tapered or conical outer surface area is pressed against the tapered or conical inner surface of the housing until the tight bearing seat is formed.

[0020] According to the invention, the bearing seat is pressed against the inner surface of the housing, depending on an axial displacement path during insertion of the rolling bearing into the housing, until the required or predetermined bearing clearance is set. This allows for easy and reliable adjustment during installation of the rolling bearing in the housing. Expanding the inner part of the rolling bearing to determine the bearing clearance is therefore unnecessary.

[0021] In a method step not according to the invention, the rotating part is pulled or pushed into the receptacle, in particular between the outer part of the rolling bearing and the inner surface of the housing. Preferably, a press fit is formed between the outer side of the rotating part and the inner surface. Pushing the rotating part into the receptacle can be carried out, for example, by using a suitable tool which can cooperate, for example, with a nut having a pressing thread. Pulling the rotating part into the receptacle can be carried out, for example, by using a suitable tool which can cooperate, for example, with a press-in sleeve. In particular, the firm bearing seat of the rolling bearing in the receptacle, optionally with a required bearing clearance, can be achieved during the pushing in or positioning of the rotating part in the receptacle.

[0022] As the rotating part is pulled or pushed into the receptacle, the rolling bearing, which is preferably already pushed into the receptacle, is gradually arranged in the cavity of the rotating part. The arrangement is preferably achieved by axial relative movements between the rotating part and the rolling bearing. In particular, during the relative movement, the tapered or conical outer surface area of ​​the rolling bearing is pressed against the tapered or conical contact surface of the rotating part until the fixed bearing seat is formed.

[0023] Within the scope of the method not according to the invention, it is possible and advantageous for the bearing clearance to be adjusted as a function of the axial path traveled during the pulling or pushing of the rotating part into the receptacle and / or during the relative movement. This is achieved in particular by the tapered or conical outer surface region being pressed against the tapered or conical contact surface of the rotating part with just enough force until the predetermined or required bearing clearance is set. Thus, the bearing clearance can be adjusted easily and reliably during assembly of the rolling bearing in the receptacle, in particular in the cavity of the rotating part. Furthermore, the widening of the inner part of the rolling bearing to determine the bearing clearance can be avoided.

[0024] Within the scope of the invention, it can preferably be summarized that the rolling bearing has a tapered or conical seat on its outer part, particularly in the shape of the outer surface area. During assembly, the rolling bearing is moved in the axial direction against a likewise tapered or conical seat in the housing or another suitable component, e.g., the rotating component. This ensures a secure bearing seat. Furthermore, the required bearing clearance can be adjusted depending on the axial displacement or the axial travel.

[0025] Further features, advantages, and effects of the invention will become apparent from the following description of preferred embodiments of the invention. These show: Fig. 1 an axial longitudinal section of a rolling bearing arrangement with a housing and a rolling bearing; Fig. 2 an axial longitudinal section of a rolling bearing arrangement not according to the invention with a housing, a rotating part and a rolling bearing; Fig. 3 a modification of the rolling bearing arrangement not according to the invention from the Fig. 2.

[0026] Corresponding or identical parts are provided with the same reference numerals in the figures.

[0027] The Fig. 1 shows a rolling bearing assembly 10 comprising a rolling bearing 1 and a housing 2. The rolling bearing 1 is shown schematically. It comprises an outer part designed as an outer ring and an inner part designed as an inner ring. The outer ring can rotate about a main axis 3, which is defined by a rotationally fixed axis 4. The inner ring sits on the axis 4. The main axis 3 defines an axial direction 5. The outer ring and the inner ring are arranged concentrically and / or coaxially to the main axis 3. The rolling bearing 1 has a plurality of rolling elements designed as rollers or balls, which can roll on a first raceway of the outer ring and on a second raceway of the inner ring when the outer ring rotates about the main axis 3.

[0028] The housing 2 has a receptacle 6 in which the rolling bearing 1 is accommodated and through which the axis 4 extends in the axial direction 5. The receptacle 6 is conical or tapered, particularly with respect to the main axis 5. The housing 2 has an inner surface 7 which radially surrounds and delimits the receptacle 6. In the longitudinal section of the Fig. 1, an imaginary extension of the inner surface 7, which is represented by the dashed line 8, runs obliquely, in particular at an acute angle, to the main axis 3.

[0029] The outer ring of the rolling bearing 1 has an outer surface area 9. The outer surface area 9 surrounds the first raceway of the outer ring at least in sections radially, forming a cone or taper around the main axis 3. In the longitudinal section of the Fig. 1, an imaginary extension of the outer surface area 9, which is represented by the dashed line 18, runs obliquely, in particular at an acute angle, to the main axis 3.

[0030] The cone or taper formed by the outer surface region 9 is designed to fit or substantially fit the conical or conical receptacle 6. Essentially, the outer surface region 9 contacts the inner surface 7 of the housing 2, so that a firm bearing seat of the rolling bearing 1 is formed in the receptacle 6. The required bearing clearance is adjusted by a targeted contact of the conical or conical outer surface region 9 with the conical or conical inner surface 7.

[0031] The Fig. 2 and Fig. 3 show a rolling bearing assembly 1 not according to the invention with a housing 2, a rolling bearing 1 and a rotating part 11 having a cavity 13. The rolling bearing 1 is accommodated together with the rotating part 11 in the receptacle 6. The receptacle 6 formed in the housing 2 is cylindrical, in particular with respect to the main axis 6. The inner surface 7 surrounds the receptacle and delimits it radially. An imaginary extension of the inner surface 7, which is represented by the dashed line 14, runs in the longitudinal sections of the Fig. 2 and Fig. 3 rectified and / or parallel to the main axis 3.

[0032] The rotating part 11 is designed as a sleeve, which is arranged concentrically and / or coaxially to the main axis 3 in the receptacle 6. A circumferential outer side 12 of the rotating part 11 bears with an oversize against the inner surface 7 of the receptacle 6. The rotating part 11 has a contact surface 12, which surrounds and radially delimits the cavity 13 of the rotating part 11. The cavity 13 is conical or cone-shaped, in particular with respect to the main axis 3. An imaginary extension of the contact surface 12, which is represented by the dashed line 15, runs in the longitudinal sections of the Fig. 2 and Fig. 3 obliquely, in particular at an acute angle, to the main axis 3.

[0033] The cone or taper of the outer ring formed by the outer surface region 9 is designed to fit or substantially fit the conical or conical cavity 13. The outer surface region 9 essentially contacts the contact surface 12 of the rotating part 11, so that a firm bearing seat of the rolling bearing 1 is formed in the cavity 13. The required bearing clearance is adjusted by a targeted contact of the conical or conical outer surface region 9 against the conical or conical contact surface 12.

[0034] For assembly, the rolling bearing 1 is positioned with reference to the Fig. 1 is first pushed into the receptacle 6 of the housing 2 in the axial direction 5. The outer surface area 9 is increasingly pressed against the inner surface 7 of the housing 2 until a tight bearing seat is formed by the interaction of the conical or cone-shaped outer surface area 9 and the conical or cone-shaped inner surface 7. Depending on the axial displacement path of the rolling bearing 1, the outer surface area 9 can be pressed against the inner surface 7 of the housing 2 just enough during the pushing into the receptacle 6 to allow a predetermined bearing clearance to be set.

[0035] With reference to the Fig. 2, the rolling bearing 1 is first pushed into the receptacle 6 of the housing 2 in the axial direction 5 and positioned therein. The rotating part 11 is then drawn into the receptacle 6 in the axial direction 5 and arranged in a gap between the housing 2 and the outer ring. For drawing it into the gap, a pulling thread can be provided in an axial end region of the rotating part 11, which is actuated with a suitable tool. A rotation lock 16 is provided, which can prevent unwanted movement of the rotating part 11 in an opposite axial direction.

[0036] As the rotating part 11 is drawn into the receptacle 6, the rolling bearing 1 is moved into the cavity 13 of the rotating part 11. The outer surface region 9 is increasingly pressed against the contact surface 12 of the rotating part 11 until a tight bearing seat is formed by the interaction of the conical or cone-shaped outer surface region 9 and the conical or cone-shaped contact surface 12. Depending on the path traveled in the axial direction 5 by the rotating part 11 during its retraction into the receptacle 6, the outer surface region 9 can be pressed against the contact surface 12 of the rotating part 11 just enough during the movement of the rolling bearing 1 into the cavity 13 to achieve a predetermined bearing clearance.

[0037] Referring to the Fig.3, the rolling bearing 1 is first pushed into the receptacle 6 of the housing 2 in the axial direction 5 and positioned therein. The rotating part 11 is then pushed into the receptacle 6 in the opposite axial direction and arranged in the gap between the housing 2 and the outer ring. A stop 16 formed in the housing 2 limits a displacement path of the rotating part 11. A nut with a pressing thread can be provided, which can be actuated by a suitable tool in order to push the rotating part 11 into the gap. A further rotation lock 17, e.g. in the form of a grub screw, is arranged to prevent undesired movement of the rotating part 11 in the axial direction 5.

[0038] As the rotating part 11 is pushed into the receptacle 6, the rolling bearing 1 is moved into the cavity 13 of the rotating part 11, with the stop 16 limiting the movement of the rolling bearing 1 in the opposite axial direction. As the rolling bearing 1 moves into the cavity 1, the outer surface area 9 is increasingly pressed against the contact surface 12 of the rotating part 11 until a tight bearing seat is formed by the interaction of the conical or tapered outer surface area 9 and the conical or tapered contact surface 12. Depending on a path directed in the opposite axial direction, which the rotating part 11 travels when being pushed into the receptacle 6, the outer surface area 9 can be pressed against the contact surface 12 of the rotating part 11 just enough during the movement of the rolling bearing 1 into the cavity 13 so that a predetermined bearing play can be set. List of reference symbols: 1 rolling bearing 2 housings 3 main axis 4 axis 5 Axial direction 6 Recording 7 inner surface 8 First dashed line 9 Outdoor area 10 Rolling bearing arrangement 11 Rotation part 12 contact surface 13 Cavity 14 Third dashed line 15 Fourth dashed line 16 stops 17 Additional anti-rotation device 18 Second dashed line

Claims

[1] Rolling bearing arrangement (10) with a housing (2) and with a rolling bearing (1), wherein the rolling bearing comprises an inner part, an outer part and a plurality of rolling elements, wherein the outer part and the inner part define a main axis (3), wherein the outer part has a first raceway and the inner part has a second raceway, wherein the rolling elements can roll on the raceways, wherein the outer part has an outer surface region (9), wherein the outer surface region (9) radially surrounds the first raceway at least in sections, wherein the outer surface region (9) forms a cone or a cone around the main axis (3), wherein the rolling bearing (1) is accommodated in a conical or cone-shaped receptacle (6) of the housing (2), wherein an inner surface (7) delimits the receptacle (6) at least in sections, wherein the outer surface region (9) is arranged in contact with the inner surface (7), characterized by , that a required bearing clearance is set by a targeted contact of the outer surface area (9) with the inner surface (7) depending on an axial displacement path of the rolling bearing (1) into the receptacle (6). [2] Rolling bearing arrangement (10) according to claim 1, characterized by that the outer part can rotate about the main axis (3) and that the inner part is arranged in a rotationally fixed manner. [3] Method for mounting a rolling bearing (1) in a receptacle (6) of a housing (2) of a rolling bearing arrangement (10), wherein the rolling bearing arrangement (10) is designed according to claim 1 or 2, wherein the rolling bearing (1) is pushed into the receptacle (6) in an axial direction (5) relative to the main axis (3), characterized bythat the outer surface area (8) is applied so strongly against the inner surface (7) of the housing (2) as a function of an axial displacement path during the insertion of the rolling bearing (1) into the receptacle (6) that a predetermined bearing play is set.

Images