EP2643606A1

EP2643606A1 - Concept for centering a bearing ring in a holding element

Info

Publication number: EP2643606A1
Application number: EP11791244.4A
Authority: EP
Inventors: Berthold Beyfuss; Hans-Jürgen FRIEDRICH; Alfred Radina; Jonas Schierling
Original assignee: SKF AB
Current assignee: SKF AB
Priority date: 2010-11-25
Filing date: 2011-11-21
Publication date: 2013-10-02
Also published as: CN103328843B; DE102010061914B4; US9222518B2; DE102010061914A1; WO2012069408A1; US20140064651A1; CN103328843A

Abstract

The invention relates to a concept for centering a bearing ring (123; 423) in a circular receiving opening (111) of a holding element (110; 210; 510; 610), said opening being provided for this purpose, wherein a centering arrangement (100; 200; 400) comprises at least three centering elements (101; 201; 301; 401; 501; 601) which can each be elastically deformed in the radial direction and which are arranged along a circumference of the circular receiving opening in recesses (114; 214; 514; 614) provided for this purpose in an edge region of the receiving opening, and which are able to center the bearing ring as it is introduced into the circular receiving opening.

Description

The present invention relates to a concept for centering a bearing ring in an opening of a holding element provided for this purpose, in particular a centering arrangement proposed for this purpose, a bearing ring and a holding element for the bearing ring.

When shafts are stored, one end of a shaft is often stored by means of a so-called fixed bearing. The fixed bearing rotatably supports the shaft and supports with a bearing outer part, such as a bearing outer ring, in the radial direction on a bearing housing, such. B. a transmission housing, from. The fixed bearing can also be axially fixed with respect to the housing. For this purpose, retaining elements, which are also referred to as retainers, can be used. These serve in particular for the fixation of one or more bearings in an installation environment in which it would be difficult to achieve a sufficient fixation of the bearings without the use of the retaining elements. This is the case, for example, when installing bearings in a transmission of motor vehicles, in particular when a transmission housing is made of a light metal. In view of temperature changes occurring there, vibrations and constantly changing load conditions, a reliable fixation of the bearings by a simple intervention in a transmission housing is generally not guaranteed. With the help of the holding elements, which can be screwed to the transmission housing, however, a permanently durable fixation of the bearing in the gear housing can be realized in a relatively simple manner.

Such holding elements are known in various embodiments. The holding element may be formed, for example, as a plate-shaped, one-piece sheet-metal part, which has a central recess in the form of a circular or cylindrical support. receiving opening for receiving the bearing or its outer bearing ring and evenly distributed over a circumference of the retaining element threaded bores for attaching the retaining element to a housing. The bearing to be received by the holding element has an outer ring, which has a reduced outer diameter in a partial region of its axial extension, so that an outer lateral surface of the outer ring is stepped and virtually has a shoulder. With the portion with the reduced outer diameter of the outer ring is inserted into the central recess of the support member before it is bolted to, for example, a transmission housing.

Although a bearing can be reliably fixed to the housing with known retaining elements, depending on the installation environment, it can prove difficult to bring the retaining element exactly into a desired installation position relative to a shaft to be supported. If the bearing ring already rests with its lateral surface at the edge of the receiving opening before an alignment with the shaft, it may be practically impossible to move a bore for the shaft even further radially outward, without the bearing ring in the designated circular receiving opening of the (flange ) Bearing element due to lack of radial tolerances between the lateral surface of the bearing ring and the inner circumferential surface of the receiving opening radially too strong load and thereby possibly cause cracks in the bearing ring.

Therefore, it is an object of the present invention, in a screwing of retaining element together with bearing ring possibly occurring high radial contact forces between the respective lateral surfaces to reduce.

It is a core idea of the present invention to solve the above-described problem by the centering of the bearing ring is introduced and held in the receiving opening of the holding element. This results in a substantially uniform gap dimension between the bearing ring lateral surface and the inner circumferential surface of the receiving opening of the retaining element along a circumferential direction of the bearing ring lateral surface. This gap allowed when attaching the retaining element together with the bearing ring to a bearing housing a (subsequent) alignment of the bearing ring relative to a position of the shaft to be supported, without causing excessive radial forces on the bearing ring and / or the receiving opening. For the proposed centering embodiments of the present invention provide a centering arrangement for centering a bearing ring in a designated circular or cylindrical central receiving opening of a holding element. The centering arrangement has at least three centering elements which are elastically deformable in the radial direction and which can be arranged along a circumference of the circular receiving opening in recesses provided in an edge region of the receiving opening and radially center the bearing ring when it is introduced into the circular receiving opening.

Preferably, the at least three centering elements are uniform for optimal radial centering along the circumference of the circular receiving opening, d. H. offset by equal angles, arranged. With three centering elements, for example, an offset angle of approximately 360 ° / 3 = 120 ° thus results between two adjacent centering elements.

The elastic centering elements which are elastic in the radial direction may in accordance with some embodiments of the present invention be radially deformable or radially elastic spring plates or clips made of spring steel sheet. According to other exemplary embodiments, the centering elements are formed from a plastic which is elastic in the radial direction.

The at least three centering elements can be formed as individual or separate elements, which can accordingly be introduced individually into the recesses provided in the edge region of the receiving opening. On the other hand, the at least three centering elements can also be arranged on a ring corresponding to the circumference of the circular receiving opening, so that the centering elements can engage in the recess provided for this in the edge region of the receiving opening when the ring is placed on the receiving opening of the holding element.

In order to hold the bearing ring in an axial direction of the bearing captive in the (flange-like) holding element, each of the centering on a bearing ring side facing a radially resilient radial projection having in an arrangement of the centering in the recess provided with a complementary radially outwardly projecting projection of the inserted into the opening bearing ring can cooperate. In this case, in the present case under the interaction, a latching of a hook-shaped inwardly projecting projection of a centering under the outwardly projecting projection of the bearing ring or a frictional connection between an end face of a radially inwardly projecting projection of the centering and an end face of the radially outwardly projecting projection of the bearing ring be understood.

Accordingly, exemplary embodiments of the present invention also include a bearing ring, in particular a bearing outer ring, with an outer diameter reduced in a partial region of its axial extension in order to insert the bearing ring into a circular receiving opening of the retaining element provided for this, wherein the bearing ring has an encircling in an axial end region of the reduced outer diameter has radial projection which can cooperate with a resilient radial projection of a arranged in an edge region of the receiving opening centering to hold the bearing ring in the holding element.

Furthermore, a holding element is proposed for a bearing, with a circular receiving opening for a bearing ring of the bearing, along a circumference of the circular receiving opening in an edge region of the receiving opening recesses for at least three elastically deformable in the radial direction centering a centering for centering the Bearing rings are introduced in the circular receiving opening. Further advantageous embodiments and developments of embodiments are the subject of the dependent claims.

Embodiments of the present invention make it possible to prevent the bearing element from slipping radially when mounting the retaining element to a housing. Thus, when mounting the fixed bearing to a housing between the lateral surface of the bearing ring and the opposite lateral surface of the receiving opening still enough clearance to compensate for tolerances relative to a relative position of a shaft to be supported by a slight radial displacement of the bearing ring within the receiving opening. Thus, high Radial Berührungskräfle the lateral surfaces of the bearing ring and the receiving opening can be avoided in the radial direction, which in turn harmful cracks on bearing rings and / or holding elements can be avoided.

Embodiments of the present invention will be explained below with reference to the accompanying figures. Show it:

1 shows various views of a bearing centered by means of a centering arrangement arranged in a rolling bearing, according to a first embodiment of the present invention;

Fig. 2 different views of the retaining element of FIG. 1;

3 shows different views of the centering arrangement with three annularly arranged and in each case in the radial direction elastically deformable centering according to FIG i;

4 shows various perspective views of roller bearing, retaining element and centering arrangement according to FIGS. 1 to 3;

5 shows different views of a rolling bearing centered in a holding element by means of a centering arrangement, according to a second embodiment of the present invention;

6 shows different views of the holding element according to FIG. 5;

7 different views of the centering arrangement with three annularly arranged and each elastically deformable in the radial direction centering according to FIG. 5;

8 shows various perspective views of rolling bearing, holding element and centering arrangement according to FIGS. 5 to 7; 9 shows various views of a roller bearing centered in a holding element by means of a centering arrangement, according to a third embodiment of the present invention;

10 different views of the centering arrangement with separate and each elastically deformable in the radial direction centering according to FIG. 9;

11 shows various perspective views of rolling bearing, retaining element and centering arrangement according to FIGS. 9 and 10;

FIG. 12 shows various views of a rolling bearing centered in a holding element by means of a centering arrangement, according to a fourth exemplary embodiment of the present invention; FIG.

13 shows different views of the centering arrangement with three annularly arranged centering elements, each elastically deformable in the radial direction, according to FIG. 12;

14 shows various perspective views of roller bearing, holding element and centering arrangement according to FIGS. 12 and 13;

15 shows different views of a rolling bearing centered in a holding element by means of a centering arrangement, according to a fifth exemplary embodiment of the present invention;

16 different views of the centering with separately arranged and each elastically deformable in the radial direction centering according to FIG.

15;

17 shows various perspective views of rolling bearing, retaining element and centering arrangement according to FIGS. 15 and 16; different views of a means of a centering in a holding element centered arranged rolling bearing, according to a sixth embodiment of the present invention; FIG. 19 shows different views of the retaining element according to FIG. 18; FIG.

FIG. 20 different views of the centering arrangement with separate centering elements elastically deformable in the radial direction according to FIG. 18; FIG. 21 shows different views of a rolling bearing centered in a holding element by means of a centering arrangement, according to a seventh exemplary embodiment of the present invention;

FIG. 22 shows different views of the holding element according to FIG. 21; FIG. and

23 different views of the centering arrangement with separate and each elastically deformable in the radial direction centering according to FIG. 21.

FIG. 1 shows various views of a first bearing arrangement, in which a bearing 120 according to a first exemplary embodiment of the present invention can be held centered in a retaining element 110 by means of a centering arrangement 100. The holding element 110 provided for this purpose is illustrated in more detail in various views in FIG. 2, whereas the centering arrangement 100 is shown more precisely in FIG. 3 in different views.

The lower part of Figure 1 shows a plan view of the bearing assembly with the support member 110, which holds the bearing 120 in a better recognizable in Figure 2 central recess 111 in the form of a circular receiving opening. The holding element 110 has for this purpose (eg uniformly) fixing sections 1 12a, 112b and 1 12c distributed over a circumference holding element 110 with respective threaded bores 113a, 113b and 113c. The fixing portions 112a, 112b and 112c here each have a form of radially outwardly extending lugs, of course, other forms are conceivable. By means of threaded holes 113 a, b and 1 13 c and corresponding screws, the bearing assembly of retaining element 110, centering 100 and Bearings 120 are attached, for example, to a bearing housing, so that, for example, a fixed bearing for supporting a (not shown) shaft is formed. The shaft, which is not shown in the present figures, can be brought through a designated opening or bore 121 of a bearing inner ring 122 of the bearing 120 (see Fig. 1). Thus, the holding element is quasi a mounting flange with holes.

Along a circumference of the circular receiving opening 111, the holding element 110, as shown in FIG. 2, has recesses 114a, b, c for at least three centering elements 101a, 101b, 101c which are elastically deformable in the radial direction in an edge region of the receiving opening 111 the centering assembly 100 (see Fig. 3). Preferably, the recesses 114a, b, c uniformly distributed along the circumference of the receiving opening 1 1 1 in order to achieve the best possible centering effect for the bearing 120 to be held. Equally means present that adjacent recesses are arranged, for example, each offset by an angle of 360 ° / N, where N means a number of recesses (N> 3). In three recesses 1 14a, b, c thus results in an example of an offset angle of 120 °.

The at least three recesses 114a, b, c are adapted in their shape to the at least three centering elements 101a, 101b, 101c of the centering arrangement 100, which will be discussed in more detail later.

A bearing ring or bearing outer ring 123 of the bearing 120 to be held by the retaining element 110 is centered by means of the centering arrangement 100 for centering the bearing outer ring 123 in the circular receiving opening 111 of the retaining element 110 provided for this purpose. Various views of the centering assembly 100 according to a first embodiment are shown in FIG.

According to the exemplary embodiment shown in FIG. 3, the centering arrangement 100 has three centering elements 101a, 101b and 101c, which are elastically deformable in the radial direction and run along a circumference of the circular receiving opening 111 into the recesses 114a, b and 114 provided in the edge area of the receiving opening 111 114 c can be arranged and thereby the bearing outer ring 123 in the circular receiving opening 11 1 of the retaining element 110 in the receiving opening 11 1 can center. The centering can take place on the one hand after the storage Sealing ring 123 has been brought into the circular receiving opening 111, so quasi later. For this purpose, the centering assembly 100 is subsequently pushed with its centering elements 101a, 101b, 101c between Lageraußenringmantelfläche and the edge of the receiving opening 111, so that the centering elements 101a, 101b, 101c find in the recesses 114a, b, c place. On the other hand, a placement of the centering 100 and their centering 101a, 101b and 101c in the recesses 114a, b and 114c is possible before the bearing outer ring 123 is inserted into the circular receiving opening 111, so that when it enters the circular receiving opening 111 is centered at the same time.

According to the embodiment of the centering arrangement 100 shown in FIG. 3, the individual centering elements 101a, 101b and 101c can be arranged on a ring 102 corresponding to the circumference of the circular receiving opening 111, so that the centering elements 101a, 101b and 101c engage the receiving device when the ring 102 is seated - Can open opening 1 11 in the provided in the edge region of the receiving opening 111 recesses 114a, b and 114c, as shown in the exploded view of FIG. The ring 102 and the centering elements 101a, 101b, 101c can be formed in one piece. The at least three centering elements 101a, 101b and 101c are formed in accordance with embodiments of the present invention, in each case to be elastically deformed radially outwardly upon contact with a lateral surface of the bearing outer ring 123 and by means of a resulting radially inwardly directed restoring force the bearing outer ring 123 in the circular receiving opening 111 to center. For this purpose, the centering elements 101a, 101b and 101c, as well as the ring 102, for example, from a mainly elastically deformable in the radial direction of metal, such as. a spring plate, or be made of an elastically deformable plastic.

In particular, the at least three centering elements 101a, 101b and 101c cooperate with the bearing outer ring 123 in a partial region of its axial extent with a reduced outer diameter. For this purpose, the bearing outer ring 123, as is also clear in FIG. 1 (top), has an encircling radial projection 124 in an axial end region of its reduced outside diameter. According to the first embodiment shown in Figures 1 to 4, each of the centering elements 101a, 101b and 101c on a bearing outer ring 123 facing or the edge of the receiving opening 111 facing away from a first resilient and radially inwardly projecting projection 103 in the form of a hook , which in the arrangement of the respective centering 101a, 101b and 101c in the recess provided 114a, b and 114c and the introduction of the bearing outer ring 123 with the radially outwardly projecting projection 124 of the bearing outer ring 123 can cooperate to the bearing outer ring as possible captive in the (flange-like) retaining member 110 to hold.

The cooperation of the hook 103 with the radial projection 124 of the bearing outer ring 123 according to the first embodiment shown in Figures 1 to 4 in a locking of the radially inwardly projecting hook 103 under an edge of the radially outwardly projecting projection 124, so that both the Centering elements 101a, 101b and 101c and the bearing outer ring 123 are each arranged captively in the retaining element 110. In this case, captive means a fixation in the axial direction, i. In the direction of the axis of rotation of the bearing 120. An axial displacement of the bearing outer ring 123, as shown in particular in the upper part of Fig. 1, on the one hand by a resulting from the reduced outer diameter shoulder 125 of the bearing outer ring 123 and the other by the under radial projection 124 of the bearing outer ring 123 engaged hook 103 of a centering 101a, 101b and 101c prevented. For this purpose, the radial projection 124 of the bearing outer ring 123 can either be completely circumferential. According to other embodiments, at least three individual, separate radial projections 124 of the bearing outer ring 123 may be provided complementary to the centering elements 101a, 101b and 101c.

As is clear in the upper part of FIG. 1, the centering arrangement with the at least three centering elements 101a, 101b and 101c causes a radial centering of the bearing 120 and the bearing outer ring 123 within the receiving opening 111 of the holding element 1 10, so that between Lagerausßenringmantelfläche and the edge of the receiving opening 111 a substantially uniform radial gap is obtained. By this gap or the distance remains when mounting the fixed bearing to a housing between the lateral surface of the bearing outer ring 123 and the opposite lateral surface of the receiving opening 111 still enough clearance to tolerances with respect to a Relative position of a shaft to be supported by a (slight) radial displacement of the bearing ring 123 within the receiving opening 1 11 compensate, whereby high radial contact forces of the lateral surfaces of the bearing ring 123 and the receiving opening 111 can be avoided in the radial direction.

Having previously described a first embodiment of a bearing arrangement with reference to FIGS. 1 to 4, further possible exemplary embodiments are explained below with reference to the further figures. Due to many structural similarities between different embodiments, in the following description will be discussed only on different functional elements in more detail, whereas already described elements are not explained in detail.

Figures 5 to 8 show a second possible embodiment of a bearing assembly. FIG. 5 shows various views of the second bearing arrangement, in which, by means of a second embodiment of a centering arrangement 200, the bearing 120 can be held centered in a second exemplary embodiment of a holding element 210. The holding element 210 provided for this purpose is illustrated in more detail in various views in FIG. 6, whereas the centering arrangement 200 is shown more precisely in FIG. 7 in different views.

As can be seen in particular from FIG. 5 (top) and FIG. 6, the holding element 210 differs from the holding element 110 by the configuration of its recesses 214a, 214b and 214c which are adjacent to the at least three centering elements that are elastically deformable in each case in the radial direction 201a, 201b and 201c of the centering arrangement 200 are adapted. The recesses 214a, 214b and 214c are introduced only at an axially end facing the bearing 120 in the edge region of the receiving opening 111, so that also radially inwardly projecting projections in the edge region of the receiving opening 111 are formed by the recesses 214a, 214b and 214c. This radially inwardly projecting projections or recesses 214a, 214b and 214c can now cooperate according to this embodiment with correspondingly modified centering elements 201a, 201b and 201c of the centering assembly 200, as is apparent especially from Fig. 5 (top). Each of the centering elements 201a, 201b and 201c has, in addition to a radially inwardly pointing hook 203, also a radially outwardly pointing and radially resilient hook 204. In other Expressed in words, each of the centering elements 201a, 201b and 201c thus on an edge region of the receiving opening 11 side facing an additional resilient hook 204, which in the arrangement of the centering 201a, 201b or 201c in one of the recesses provided for this purpose 214a, 214b or 214c can engage under a radially inwardly projecting projection of a recess 214a, 214b and 214c in the edge region in order to hold the centering element 201a, 201b or 201c captive in the holding element 210 (see FIGS. 7 and 8).

Again, the centering elements 201a, 201b or 201c and / or the ring may of course be formed from a spring plate or elastic plastic.

The bearing arrangement described with reference to FIGS. 5 to 8 is able to bring about a further improved axial fixing of both the radially centered bearing 120 and the centering arrangement 200 in comparison with the first embodiment.

Another embodiment of the present invention is shown in FIGS. 9 to 11. There, a bearing arrangement is shown in which by means of a further centering arrangement, the bearing 120 can be kept centered in the holding element 210 according to a third embodiment of the present invention. After the bearing 120 and the holding member 210 has already been explained in detail, will not be discussed in the following.

In comparison to the centering arrangements 100, 200, in which the respective centering elements 101a, 101b, 101c and 201a, 201b, 201c are respectively arranged on the ring 102 connecting them, in the centering arrangement illustrated with reference to FIGS. 9 to 11, none is the centering element 301a, b, c connecting ring provided. Instead, the at least three centering elements 301a, b and 301c are each separately, ie separated from each other before. The individual centering elements 301a, b and 301c can be formed in the same way as the centering elements 101 or 201 arranged on the ring 102. This is clear from FIG. 10, in which separate centering elements 301a, b and 301c are shown by way of example correspond to the centering elements 201a, 201b and 201c. A centering arrangement with separate centering elements 301a, b, c may be advantageous, for example, if certain installation situations do not allow an arrangement on a ring 102, for example, if a subsequent centering should take place after installation of the fixed bearing in tight storage housings. In addition, of course, material costs for the centering can be saved.

Further, similar to the last two described embodiments, embodiments of the present invention are shown in Figures 12-18. The fourth exemplary embodiment shown with reference to FIGS. 12 to 14 differs from the second embodiment explained with reference to FIGS. 5 to 8 in one embodiment of the bearing or its radial projection and on the other in the centering arrangement. The bearing 420 has a bearing outer ring 423 with a radially outward projection 424 in its reduced diameter axial end region. In contrast to the previously described embodiments, the radially outwardly projecting projection 424 has a pronounced, radially outwardly facing end face, see FIG. 12 (top).

A centering assembly 400 provided in accordance with this embodiment, i. their individual centering elements 401a, b and 401c, as well as the ring 402 connecting them, can be made of a plastic, in particular a plastic. In this case, the centering arrangement 400 made of plastic can be produced, for example, by means of an injection molding process. In addition, as will be apparent from Fig. 13, a radially inward projection 403 and a radially outward projection 404 of a centering member 401a, b and 401c are formed differently as compared with the foregoing embodiments. Pronounced hooks are not provided according to this embodiment. Rather, in particular, the radially inwardly facing projection 403 has a pronounced, radially inwardly facing end face.

As shown in FIG. 12 (top), the radially inward-pointing projection 403 of a centering element 401 need not necessarily engage under a radially outward-pointing projection 424 of the bearing outer ring 423. Instead, the radially inwardly facing projection 403 of a centering element 401 also cooperate with the radially outwardly facing projection 424 of the bearing outer ring 423 such that the end faces of the radial projections 403 and 424 are pressed against each other. In this way, a frictional connection is formed, which can also cause an axial fixation of the bearing 420 in the holding element 210.

As has already been explained above, the at least three centering elements 401a, b and 401c need not necessarily be arranged on the ring 402 of the centering arrangement 400, too. As shown in FIGS. 15 to 17, the individual centering elements 401a, b and 401c in a centering arrangement can also be separated from one another, i.e., in a centering arrangement. physically separated, are brought into the recesses provided for the holding member 210.

In order to fix the bearing outer ring 423 captive in a holding element, the individual centering elements of a centering arrangement can also have other shapes than those described so far, as illustrated by FIGS. 18 to 23.

As has already been described, the radially inward-pointing projection of a centering element does not necessarily have to be formed as a hook. As is also shown in FIGS. 18 to 23, in particular in FIGS. 18, 20, 21 and 23, a radially inward-pointing projection 503 may likewise be trapezoidal in shape with an end face which has a contact surface for frictional connection with an end face of the radially outwardly projecting projection 424 of the bearing outer ring 423 may form. The frictional connection is achieved by means of a radially inwardly directed restoring force caused by the elastic deformation of the centering elements.

In order to place the individual centering elements 501 and 601 in the edge area of the receiving opening 111, the centering elements 501 and 601 may each have, for example, spring-like U- or Ω-shaped longitudinal sections or U-shaped or Ω-shaped projections 504 projecting radially outwards , 604, as shown in particular in Figures 18 (top), 20 (bottom), 21 (top) and 23 (bottom). Accordingly, provided for such centering recesses 514, 614 may be complementarily shaped, so for example with groove or T-shaped longitudinal sections or recesses, so the centering elements 501 or 601 can form a positive connection with the recesses 514 or 614 provided for this purpose (see also FIGS. 19, 20 and 22, 23). The U- or Ω-shaped radially outwardly projecting protrusions 504, 604 may be elastically deformable in the axial direction, for example, to allow engagement of the projections 604 in the recesses 614.

Although various embodiments of the present invention have been described with reference to separate figures, other embodiments of the present invention also provide combinations of the described embodiments. In order to obtain positive and / or frictional connections between different elements of the bearing arrangement, a wide variety of profiles can be provided, which may differ from the profiles described in the present specification, but essentially fulfill the same function.

LIST OF REFERENCE NUMBERS

100 first centering arrangement

101 centering element

102 centering ring

103 radially inwardly facing projection of a centering element

110 first holding element

111 receiving opening

112 determination section

113 threaded hole

114 recess for centering element

120 bearings

121 Bearing bore for shaft

122 bearing inner ring

123 bearing outer ring

124 radially outward projection of the bearing outer ring

125 shoulder

200 second centering arrangement

201 centering element

203 radially inwardly facing projection of a centering element

204 radially outwardly protruding projection of a centering element 210 second holding element

301 centering element

400 fourth centering arrangement

401 centering element

402 centering ring

403 radially inwardly facing projection of a centering element

404 radially outwardly projecting projection of a centering element 420 bearing

423 bearing outer ring 424 radially outwardly facing projection of the bearing outer ring

501 centering element

503 radially inwardly facing projection of a centering element

504 radially outwardly projecting projection of a centering element 510 retaining element

514 recess for centering element

601 centering element

604 radially outwardly facing projection of a centering element

610 retaining element

614 recess for centering element

Claims

P a n t a n s p r e c h e

Concept for centering a bearing outer ring in a holding element

A centering arrangement (100; 200; 400) for centering a bearing ring (123; 423) in a provided circular receiving opening (111) of a holding element (1 10; 210; 510; 610), wherein the centering arrangement at least three elastic in each case in the radial direction deformable centering elements (101; 201; 301; 401; 501; 601) which are arranged along a circumference of the circular receiving opening in recesses (114; 214; 514; 614) provided for this purpose in an edge area of the receiving opening and which engage the bearing ring in its Introduction centered in the circular receiving opening.

The centering assembly according to claim 1, wherein the centering members (101; 201; 301; 401; 501; 601) are formed to be elastically deformed respectively in the radial direction upon insertion of the bearing ring (123; 423) and by a resultant restoring force Center the bearing outer ring in the circular receiving opening (111).

The centering arrangement according to claim 1 or 2, wherein each of the centering elements (101; 201; 301; 401; 501; 601) has a first resilient radial projection (103; 203; 403; 503) on a side facing the bearing ring (123; 423). which, in the arrangement of the centering element in the recess provided therefor (114; 214; 514; 614) and the introduction of the bearing ring with a radial projection (124; 424) of the bearing ring can cooperate to the bearing ring captive in the retaining element (110 210, 510, 610).

4. The centering arrangement according to one of the preceding claims, wherein each of the centering elements (201; 301; 401; 601) has on a side facing the edge region of the receiving opening (111) a resilient hook (204; 404; 604) which in the arrangement of the centering element (201; 301; 401; 601) can engage in one of the recesses provided for this purpose under a radial projection of the edge region in order to hold the centering element captive in the retaining element (210; 610).

5. The centering arrangement according to one of the preceding claims, wherein the centering elements (101, 201, 301, 401, 501, 601) are arranged on a circumference of the circular receiving opening (111) corresponding ring (102, 402), so that the centering in the recesses (1 14; 214; 514; 614) provided for this purpose engage in the edge area of the receiving opening when the ring is placed on the receiving opening of the holding element (110; 210; 510; 610).

6. The centering arrangement according to one of the preceding claims, wherein the radially elastic centering elements (101, 201, 301, 401, 501, 601) are formed from a spring plate.

7. The centering arrangement according to one of claims 1 to 6, wherein the radially elastic centering elements (101; 201; 301; 401; 501; 601) are formed from a plastic.

8. The centering arrangement according to one of the preceding claims, wherein the centering elements (101; 201; 301; 401; 501; 601) are arranged uniformly along the circumference of the circular receiving opening (111) in the recesses (114; 214; 514; 614) can be arranged.

9. A bearing ring (123; 423) with an outer diameter reduced in a partial region of its axial extent in order to insert the bearing ring into a circular receiving opening (111) of a holding element (110; 210; 510; 610) provided therefor, the bearing ring in an axial end portion of the reduced outer diameter, a circumferential radial projection (124, 424), the with a resilient radial projection of a arranged in an edge region of the receiving opening centering element (101; 201; 301; 401; 501; 601) can cooperate to hold the bearing outer ring captive in the holding element.

A support member (110; 210; 510; 610) for a bearing (120; 420) having a circular receiving opening (111) for a bearing ring (123; 423) of the bearing, wherein recesses are formed along a circumference of the circular receiving opening in an edge region of the receiving opening (114; 214; 514; 614) for at least three in each case radially elastically deformable centering elements (101; 201; 301; 401; 501; 601) of a centering arrangement (100; 200; 400) for centering the bearing ring in the circular receiving opening are.