Bearing

Abstract

The bearing comprises a bearing body and a bearing cover, the bearing body comprises a bearing inner ring located on the inner side in the radial direction and a bearing outer ring located on the outer side in the radial direction, one of the bearing inner ring and the bearing outer ring is a rotating ring, and the other one of the bearing inner ring and the bearing outer ring is a fixed ring; the bearing cover is annular and is used for being matched with the bearing main body, so that a bearing cavity is formed between the bearing cover and the bearing main body. The bearing cover comprises a first part section and a second part section, the first part section is located on the side, adjacent to the rotating ring, of the bearing cover, the first part section is made of metal, and the first part section is matched with the rotating ring; the second part section is located on the side, close to the fixing ring, of the bearing cover, the second part section is made of non-metal, the second part section is in press fit with the fixing ring, and the elastic modulus of the material for manufacturing the fixing ring is larger than 600 times of the elastic modulus of the non-metal material for manufacturing the second part section.

Description

Technical Field

[0001] The present disclosure relates to the field of bearings, and in particular to a bearing with a bearing cover. Background Art

[0002] Bearings have been widely used in more and more fields, and the requirements for bearings are getting higher and higher. For example, more and more bearings are required to be equipped with bearing covers to avoid interference from external pollutants and leakage of lubricants. Traditional metal bearing covers are installed between the inner and outer rings of the bearings by press fitting, which easily causes deformation of the outer ring, especially for thin-walled bearings. Due to the thin outer ring, the outer ring is prone to excessive deformation after the high-rigidity bearing cover is installed, affecting the use of the bearing.

[0003] Although rubber bearing covers already exist, such rubber bearing covers are easily deformed by heat, and the rubber section adjacent to the inner ring of the bearing will produce friction with the inner ring of the bearing, making the sealing performance unstable and affecting the rotation performance of the bearing, so they are not suitable for high temperature and high speed application conditions. Summary of the invention

[0004] The purpose of the present disclosure is to at least solve the shortcomings existing in the prior art, and a bearing is proposed, including a bearing body and a bearing cover, wherein the bearing body includes a bearing inner ring located on the radial inner side and a bearing outer ring located on the radial outer side, one of the bearing inner ring and the bearing outer ring is a rotating ring and the other is a fixed ring; the bearing cover has an annular shape and is used to cooperate with the bearing body, so that a bearing cavity is formed between the bearing cover and the bearing body.

[0005] The bearing cover includes: a first section, located on a side of the bearing cover adjacent to the rotating ring, the first section is made of metal, and the first section cooperates with the rotating ring; and a second section, located on a side of the bearing cover adjacent to the fixed ring, the second section is made of non-metal, wherein the second section is press-fitted with the fixed ring, and the elastic modulus of the material used to manufacture the fixed ring is greater than 600 times the elastic modulus of the non-metal material used to manufacture the second section.

[0006] According to some technical solutions of the present disclosure, the second section is made of an elastomeric material, the elastic modulus of the material used to make the fixing ring is greater than or equal to 200 Gpa, and the elastic modulus of the elastomeric material is less than or equal to 300 Mpa.

[0007] According to some technical solutions of the present disclosure,

[0008]

[0009] Among them, D o is the outer diameter of the bearing outer ring,

[0010] d i is the inner diameter of the bearing inner ring,

[0011] A is the proportionality coefficient and is less than or equal to 0.62.

[0012] According to some technical solutions of the present disclosure, the fixing ring is the bearing outer ring, the bearing outer ring includes a blocking portion, the minimum diameter of the blocking portion is smaller than the maximum diameter of the second section, and the second section is located axially inside the blocking portion; or,

[0013] The fixing ring is the bearing inner ring, the bearing inner ring comprises a blocking portion, the maximum diameter of the blocking portion is greater than the minimum diameter of the second section, and the second section is located axially inward of the blocking portion.

[0014] According to some technical solutions of the present disclosure, the fixing ring is the outer ring of the bearing, and the maximum diameter of the first section is smaller than the minimum diameter of the blocking portion of the outer ring of the bearing; or,

[0015] The fixing ring is the bearing inner ring, and the minimum diameter of the first section is greater than the maximum diameter of the blocking portion of the bearing inner ring.

[0016] According to some technical solutions of the present disclosure, the fixing ring is the outer ring of the bearing, the outer ring of the bearing has a receiving portion, the receiving portion is adjacent to the blocking portion and is a groove with an opening direction radially inward, and the second section is press-fitted with the outer ring of the bearing in the receiving portion; or,

[0017] The fixing ring is the inner ring of the bearing, and the inner ring of the bearing has a receiving portion, the receiving portion is adjacent to the blocking portion and is a groove with an opening direction radially outward, and the second section is press-fitted with the outer ring of the bearing in the receiving portion.

[0018] According to some technical solutions of the present disclosure, the first section of the bearing cover is gap-matched with the rotating circle of the bearing body.

[0019] According to some technical solutions of the present disclosure, the first section includes: a base, the base is parallel to the radial direction of the bearing body; a first outer bending section, located radially outside the base and forming an obtuse angle with the base; a second outer bending section, located radially outside the first outer bending section and substantially parallel to the base. The first outer bending section and the second outer bending section are adjacent to the second section.

[0020] According to some technical solutions of the present disclosure, the first outer bending section is bent from the base toward the axial inside, and the angle between the base and the first outer bending section is between 120° and 140°.

[0021] According to some technical solutions of the present disclosure, the fixing ring is the outer ring of the bearing, and the diameter of the intersection of the first outer bending section and the second outer bending section is greater than or equal to d o -0.05D r , where d o D is the inner diameter of the bearing outer ring r is the diameter of the rolling element.

[0022] According to some technical solutions of the present disclosure, the rotating ring is the inner ring of the bearing, the inner diameter of the inner ring of the bearing is greater than or equal to 15 mm, and the first section also includes an inner bent end located radially inward.

[0023] According to some technical solutions of the present disclosure, the inner bent end portion is bent toward the axial inside, and the inner bent end portion is substantially perpendicular to the base.

[0024] According to some technical solutions of the present disclosure, the second section extends radially outward from the intersection of the first outer bending section of the first section and the base.

[0025] According to some technical solutions of the present disclosure, the second section has a recess, and the opening orientation of the recess is not parallel to the radial direction.

[0026] According to some technical solutions of the present disclosure, the first section and the second section are fixedly connected.

[0027] According to some technical solutions of the present disclosure, the first section is formed by stamping, and the second section is formed on the first section by molding.

[0028] According to some technical solutions disclosed herein, the distance between a point on the axial outer side of the base of the bearing cover and a plane where the corresponding axially outermost second end face of the bearing body is located is between 0.1 mm and 0.2 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic cross-sectional view showing the structure of a bearing cap according to an embodiment of the present disclosure;

[0030] Figure 2 Show Figure 1 A cross-sectional schematic diagram of the matching of the bearing cap and the bearing body of the illustrated embodiment;

[0031] Figure 3 A schematic cross-sectional view showing the structure of a bearing cap according to another embodiment of the present disclosure;

[0032] Figure 4 Show Figure 3 A schematic cross-sectional view of the cooperation between the bearing cap and the bearing body of the illustrated embodiment.

[0033] Reference numerals

[0034] 1 bearing cap, 11 first section, 110 second outer bending section, 111 first outer bending section, 112 base, 113 inner bending end, 114 first end surface, 12 second section, 122 recess

[0035] 2 bearing body, 21 bearing outer ring, 211 blocking portion, 212 receiving portion, 22 bearing inner ring, 23 bearing cavity, 24 second end face, 25 rolling element, 26 rolling element retainer DETAILED DESCRIPTION

[0036] In order to make the purpose, scheme and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present disclosure. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, "inner diameter" and "outer diameter" in this technical field and in this application should be understood as the inner diameter and outer diameter of the component.

[0038] In the present application, what is shown are all cross-sectional schematic diagrams, so the annular shape is not directly shown in the figure, but it can be imagined that one side part of the cross section cut off from a surface passing through the central axis of the corresponding bearing is as shown in the corresponding schematic diagram.

[0039] For the convenience of description, in this application, since the bearing body and the bearing cap are both annular components, the radial direction is designated as the direction in which the radius of the annular bearing body and the bearing cap is located, wherein the radial inward direction is designated as the direction pointing to the center of the annular circle, and the radial inward direction is designated as the direction pointing to the center of the annular circle. Figure 1 The direction indicated by the arrow R is opposite, and radially outward is designated as away from the center of the ring, such as Figure 1As shown by the arrow R in the middle. Furthermore, axially inward and axially outward both refer to directions perpendicular to the radial direction, axially outward refers to the direction from the inside of the bearing toward the outside of the bearing, and axially inward refers to the direction from the outside of the bearing toward the inside of the bearing. And it can be imagined that since the bearing cover 1 and the bearing body 2 are both roughly rotating bodies, at any point in the bearing cover 1 and the bearing body 2, a circle passing through the point can be intercepted on the bearing cover 1 and the bearing body 2 by a plane perpendicular to the axis of rotation. The larger the diameter of the circle passing through the point, that is, the greater the distance between the point and the axis of rotation, the farther the point is in the radial outward direction, that is, the farther it is in the direction indicated by the arrow R ( Figure 2 and 4 The center is further to the right).

[0040] In the present disclosure, substantially parallel means that the relative angle is within 180°±10°, and substantially perpendicular means that the relative angle is within 90°±5°.

[0041] When the all-metal bearing cap is assembled with the corresponding bearing body, the contact point between the outer ring of the bearing and the bearing cap is a receiving recess to accommodate the maximum diameter of the bearing cap, and the diameters on both sides of the receiving recess are smaller than the maximum diameter of the bearing cap. Generally speaking, this all-metal bearing cap has a large rigidity, and the bearing cap is installed in the bearing body by pressing. Since the diameter of the axially outward side of the receiving recess is smaller than the maximum diameter of the bearing cap, it is easy to cause deformation of the outer ring of the bearing when the bearing cap is pressed and assembled. When the bearing cap is pressed into the receiving recess, it will deform and generate pressure on the outer ring of the bearing in the radial outward direction, which will further cause deformation of the outer ring of the bearing, especially for thin-walled bearings, which may make the bearing completely scrapped.

[0042] According to the embodiments of the present disclosure, improvements are made based on the all-metal bearing cover, which can reduce the possibility of the above-mentioned problems occurring.

[0043] like Figure 1In the illustrated embodiment, the bearing cap 1 may include a first section 11 and a second section 12, wherein the first section may be made of a material with greater rigidity, such as metal, to ensure the overall strength and stability of the bearing cap 1, and to make the bearing cap 1 suitable for high temperature and high speed use scenarios. The first section 11 may include a base 112, a first outer bending section 111, and a second outer bending section 110; in the assembled state, the base 112 is a straight section substantially parallel to the radial outward direction R, the second outer bending section 110 is the radially outer end of the first section 11, the first outer bending section 111 is located between the second outer bending section 110 and the base 112, and the first outer bending section 111 and the second outer bending section 110 are adjacent to the second section 12. The first outer bending section 111 extends from the base 112 at a certain angle. Compared with a straight structure without bending, the bending structure significantly strengthens the strength of the bearing cap 1 and improves the anti-deformation ability of the bearing cap 1.

[0044] Figure 2 Show Figure 1 The cross-sectional schematic diagram of the bearing cap 1 and the bearing body 2 is shown in FIG. 1 , in which it can be seen that the bearing cap 1 is assembled between the bearing inner ring 22 and the bearing outer ring 21 of the bearing body 2. The bearing outer ring 21 can be a fixed ring, and the bearing inner ring 22 can be a rotating ring that rotates relative to the fixed ring. Two symmetrical bearing caps 1 cooperate with the bearing body 2 to form a bearing cavity 23, in which rolling elements 25 and rolling element retainers 26 are installed.

[0045] The bearing cap 1 according to some embodiments of the present disclosure can be applied to thin-walled bearings, in particular, to bearing bodies 2 that meet Bearings, where D o is the outer diameter of the bearing outer ring 21, d i is the inner diameter of the bearing inner ring 22, and A is the proportionality coefficient and is less than or equal to 0.62. The bearing outer ring 21 of this type of bearing is more prone to deformation, and therefore is more suitable for the bearing cover 1 according to the above embodiment of the present disclosure.

[0046] In some embodiments, the first outer bending section 111 may be bent axially inward from the base 112, and the angle between the first outer bending section 111 and the base 112 at the junction may be an obtuse angle, for example, between 120° and 140°. As shown in the figure, the second outer bending section 110 of the first section 11 may be substantially parallel to the base 112 and abut against the bearing outer ring 21 across the second section 12 in a direction substantially perpendicular to the radial outward direction R. The bending structure enables the base 112 to be further outward in the axial direction, thereby increasing the volume of the bearing cavity 23 and reducing the possibility of interference between the bearing cover and the rolling element 25 and the rolling element retainer 26 in the bearing cavity 23, which is conducive to increasing the diversity of the arrangement and structure in the bearing cavity 23.

[0047] In some embodiments, the diameter of the intersection of the first outer bending segment and the second outer bending segment may be greater than or equal to d o -0.05D r , where d o is the inner diameter of the bearing outer ring 21, D r is the diameter of the rolling element 25. Thus, it is ensured that the bearing cap 1 does not interfere with the rolling element 25 and the rolling element retainer 26 in the bearing cavity 23.

[0048] like Figure 2 As shown, the first section 11 and the bearing inner ring 22 are clearance-fitted, and the clearance-fitting prevents the friction between the bearing cover 1 and the bearing inner ring 22, which is beneficial to the rotation performance of the bearing and can be applied to high-speed rotation scenarios. It should be noted that the clearance can be adjusted according to factors such as the specific model, size and use environment of the bearing. Thus, the bearing cavity 23 is an incompletely sealed chamber. Due to the clearance fit between the bearing cover 1 and the bearing rotating ring, the rotation of the bearing rotating ring is not affected. At the same time, a certain amount of lubricant can exist in the bearing cavity 23 without leakage, and foreign debris can be prevented from entering the bearing cavity 23 to a certain extent.

[0049] In some embodiments, when the bearing cap 1 and the bearing body 2 are in an assembled state, the distance between a point on the axially outer side of the base 112 of the bearing cap 1 (such as a point on surface 114) and the plane where the axially outermost second end face 24 of the corresponding bearing body is located is between 0.1 mm and 0.2 mm.

[0050] Figure 3 A cross-sectional schematic diagram of the structure of a bearing cover according to another embodiment of the present disclosure is shown, in which it can be seen that the first section 11 may also include an inner bent end portion 113, which is located at an end opposite to the first outer bent section 111. The inner bent end portion 113 increases the relative matching area with the bearing inner ring 22, which can improve the sealing performance of the bearing cover 1. For example, according to some embodiments, the inner diameter of the bearing inner ring 22 is less than or equal to 6 mm, and the inner bent end portion 113 may not be provided due to the small size; according to other embodiments, the inner diameter of the bearing inner ring 22 is between 6 mm and 15 mm, and the inner bent end portion 113 may be provided; according to still other embodiments, the inner diameter of the bearing inner ring 22 is greater than or equal to 15 mm, and the inner bent end portion 113 is particularly preferably provided to increase the sealing performance.

[0051] like Figure 4 As shown, the inner bent end portion 113 can be bent axially inward from the base 112, and the inner bent end portion 113 can be substantially perpendicular to the base 112 to enhance the spatial compactness of the structure and prevent the possibility of the inner bent end portion 113 protruding from the side of the bearing due to the axial outward extension.

[0052] like Figure 1 and Figure 3 As shown, the second section 12 is adjacent to the first section 11, that is, adjacent to the first outer bending section 111 and the second outer bending section 110, and the second section 12 extends from the intersection of the first outer bending section 111 and the base 112 in the radial outward direction R to achieve half-encirclement of the first outer bending section 111 and full encirclement of the second outer bending section 110, so that the structure and characteristics of the radially outer section of the sealing cover 1 adjacent to the bearing outer ring 21 can be significantly changed, while the radial inner side of the sealing cover 1 is less affected. The stiffness of the second section 12 is much smaller than the stiffness of the bearing outer ring 21, for example, the elastic modulus of the material made of the second section 12 can be much smaller than the elastic modulus of the material made of the bearing outer ring 21. Specifically, the elastic modulus of the material made of the bearing outer ring 21 is greater than 600 times the elastic modulus of the non-elastic material made of the second section 12. For example, the second section 12 is made of an elastomeric material, such as a rubber material, a vinyl elastomer, a propylene elastomer, a polyester elastomer, etc. The elastic modulus of the material for manufacturing the bearing outer ring 21 may be greater than or equal to 200Gpa, while the elastic modulus of the selected elastomeric material may be less than or equal to 300Mpa. The huge difference in elastic modulus enables the second section 12 of the bearing cover 1 to be significantly deformed to ensure sealing when the bearing cover 1 is press-fitted with the bearing outer ring 21, while the bearing outer ring 21 is almost not deformed, thereby ensuring the roundness of the bearing outer ring 21 and improving the stability of the bearing in use.

[0053] In some embodiments, the second section 12 may further include a recess 122, such as Figure 1 and Figure 3 As shown, the opening direction of the recess 122 is not parallel to the radial outward direction R, for example, it can be substantially perpendicular to the radial outward direction R. The provision of the recess 122 further reduces the rigidity of the second segment 12 in the radial outward direction R, reserves space for the deformation of the second segment 12, makes it easier for the second segment 12 to deform during press fitting, and further reduces the radial force on the bearing outer ring 21. Figure 2 and Figure 4 As shown, the recess 122 may be disposed on the axially outward side of the second segment 12 to correspond to the shape of the first outer bending segment 111 of the first segment 11 .

[0054] The first section 11 and the second section 12 may be fixed together to form an integral component to increase the sealing performance and stability of the bearing cap 1. For example, the first section 11 may be stamped and then the second section 12 may be molded on the first section 11 to simplify the manufacturing process of the bearing cap 1.

[0055] like Figure 2 and Figure 4As shown, the bearing outer ring 21 includes a blocking portion 211, which can be set at two second end faces 24 on the axial outside of the bearing outer ring 21. The blocking portion 211 can abut against at least part of the bearing cover 1 to limit the bearing cover 1 and reduce the axial outward relative movement of the bearing cover 1, thereby making it possible for the bearing cover 1 to accidentally detach.

[0056] In some embodiments, the bearing outer ring 21 may further include an accommodating portion 212, which is a groove whose opening direction is opposite to the radial outward direction R, and may be adjacent to the blocking portion 211. The accommodating portion 212 is used to accommodate part of the second section 12 of the bearing cover 1, thereby increasing the matching area between the bearing cover 1 and the bearing outer ring 21 and greatly improving the sealing performance of the bearing cover. The side of the accommodating portion 212 close to the bearing cavity 23 may abut against at least part of the bearing cover 1, limit the bearing cover 1, and reduce the possibility of the bearing cover 1 generating axial inward relative movement, thereby interfering with the inner components of the bearing cavity 23.

[0057] Those skilled in the art can imagine that the design of the bearing cover of some embodiments of the present disclosure may have an opposite structure, that is, the inner ring of the bearing is a fixed ring, and the outer ring of the bearing is a rotating ring. Therefore, the design of the above-mentioned bearing cover will also have corresponding adjustments, and the first section and the second section are reversed and interchanged, that is, the first section is on the radial outside and cooperates with the outer ring of the bearing, and the second section is on the radial inside and cooperates with the inner ring of the bearing. Other structures and cooperation can be adjusted accordingly with reference to the above-mentioned embodiments.

[0058] It should be understood that the above description is intended to illustrate rather than limit. For example, the above embodiments (and / or aspects thereof) can be used in combination with each other. In addition, without departing from the scope of the present disclosure, many modifications can be made to adapt specific situations or materials to the teachings of the present disclosure. The functions or performances of the various elements or modules described herein are only for illustration and are by no means restrictive, but are merely exemplary embodiments. After reading the above description, many other embodiments and modifications within the spirit and scope of the claims will be apparent to those skilled in the art. Therefore, the scope of the present disclosure should be determined with reference to the full scope of the equivalents given by the attached claims and these claims.

[0059] In the following claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects.

Claims

1. A bearing, comprising a bearing body and a bearing cap, wherein: The bearing body comprises a bearing inner ring located radially inward and a bearing outer ring located radially outward, one of the bearing inner ring and the bearing outer ring is a rotating ring and the other is a fixed ring; The bearing cap has an annular shape and is used to cooperate with the bearing body so that a bearing cavity is formed between the bearing cap and the bearing body. The bearing cap includes: a first section, located on a side of the bearing cover adjacent to the rotating ring, the first section being made of metal and cooperating with the rotating ring; and The second section is located on a side of the bearing cover adjacent to the fixing ring, the second section is made of non-metal, wherein the second section is press-fitted with the fixing ring, and the elastic modulus of the material used to make the fixing ring is greater than 600 times the elastic modulus of the non-metal material used to make the second section.

2. The bearing according to claim 1, wherein: The second section is made of an elastomeric material, the elastic modulus of the material used to make the fixing ring is greater than or equal to 200 Gpa, and the elastic modulus of the elastomeric material is less than or equal to 300 Mpa.

3. The bearing according to claim 1, satisfying in, D o is the outer diameter of the bearing outer ring, d i is the inner diameter of the bearing inner ring, A is the proportionality coefficient and is less than or equal to 0.

62.

4. The bearing according to claim 1, wherein: The fixing ring is the bearing outer ring, the bearing outer ring comprises a blocking portion, the minimum diameter of the blocking portion is smaller than the maximum diameter of the second section, and the second section is located axially inside the blocking portion; or, The fixing ring is the bearing inner ring, the bearing inner ring comprises a blocking portion, the maximum diameter of the blocking portion is greater than the minimum diameter of the second section, and the second section is located axially inward of the blocking portion.

5. The bearing according to claim 4, wherein: The fixing ring is the bearing outer ring, and the maximum diameter of the first section is smaller than the minimum diameter of the blocking portion of the bearing outer ring; or, The fixing ring is the bearing inner ring, and the minimum diameter of the first section is greater than the maximum diameter of the blocking portion of the bearing inner ring.

6. The bearing according to claim 4, wherein: The fixing ring is the bearing outer ring, the bearing outer ring has a receiving portion, the receiving portion is adjacent to the blocking portion and is a groove with an opening direction radially inward, and the second section is press-fitted with the bearing outer ring in the receiving portion; or, The fixing ring is the inner ring of the bearing, and the inner ring of the bearing has a receiving portion, the receiving portion is adjacent to the blocking portion and is a groove with an opening direction radially outward, and the second section is press-fitted with the outer ring of the bearing in the receiving portion.

7. The bearing according to claim 1, wherein: The first section of the bearing cap is clearance-matched with the rotating circle of the bearing body.

8. The bearing according to claim 7, wherein The first section comprises: a base, the base being substantially parallel to a radial direction of the bearing body; A first outer bending section, located radially outward of the base and forming an obtuse angle with the base; a second outer bending section, located radially outward of the first outer bending section and substantially parallel to the base, The first outer bending segment and the second outer bending segment are adjacent to the second segment.

9. The bearing according to claim 8, wherein: The first outer bending section is bent from the base toward the axial inside, and an included angle between the base and the first outer bending section is between 120° and 140°.

10. The bearing according to claim 8, wherein: The fixing ring is the outer ring of the bearing, and the diameter of the intersection of the first outer bending section and the second outer bending section is greater than or equal to d o -0.05D r , Among them, d o is the inner diameter of the bearing outer ring, D r is the diameter of the rolling element.

11. The bearing according to claim 8, wherein: The rotating ring is the inner ring of the bearing, the inner diameter of the inner ring of the bearing is greater than or equal to 15 mm, and the first section also includes an inner bent end portion located radially inward.

12. The bearing according to claim 11, wherein: The inner bent end portion is bent toward the inner side in the axial direction, and the inner bent end portion is substantially perpendicular to the base portion.

13. The bearing according to claim 8, wherein: The second section extends radially outward from an intersection of the first outer bend section of the first section and the base.

14. The bearing according to claim 1, wherein: The second section has a recess whose opening is oriented non-parallel to the radial direction.

15. A bearing according to any one of the preceding claims, wherein: The first section and the second section are fixedly connected.

16. The bearing according to claim 15, wherein: The first section is formed by stamping, and the second section is formed on the first section by molding.

17. The bearing according to claim 1, wherein: A distance between a point on the axial outer side of the base of the first section and a plane where the corresponding second end surface is located is between 0.1 mm and 0.2 mm.

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