CN220101803U - Double-row serial integrated high-precision angular contact ball bearing - Google Patents
Double-row serial integrated high-precision angular contact ball bearing Download PDFInfo
- Publication number
- CN220101803U CN220101803U CN202321541624.5U CN202321541624U CN220101803U CN 220101803 U CN220101803 U CN 220101803U CN 202321541624 U CN202321541624 U CN 202321541624U CN 220101803 U CN220101803 U CN 220101803U
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- outer ring
- bearing
- inner ring
- ring raceway
- corner
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 229920003189 Nylon 4,6 Polymers 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a double-row serial integrated high-precision angular contact ball bearing, and belongs to the field of bearings. The bearing comprises a bearing outer ring, wherein a first outer ring raceway and a second outer ring raceway which are distributed in parallel are arranged on the inner wall of the bearing outer ring; the outer wall of the bearing inner ring is provided with a first inner ring raceway and a second inner ring raceway which are distributed in parallel; the first steel ball is positioned in a rollaway nest formed by the first outer ring rollaway nest and the first inner ring rollaway nest; the second steel ball is positioned in a rollaway nest formed by the second outer ring rollaway nest and the second inner ring rollaway nest; a first oil groove is arranged between the first outer ring raceway and the second outer ring raceway, and comprises a first bending part, a first slope part and a first convex part; one end of the first bending part is connected with the first outer ring raceway, the other end of the first bending part is connected with the first slope part, the other end of the first protruding part is connected with the first slope part, and the other end of the first protruding part is connected with the second outer ring raceway. The double-row serial integrated high-precision angular contact ball bearing has the beneficial effect of providing a double-row serial integrated high-precision angular contact ball bearing with good oil storage effect.
Description
Technical Field
The utility model relates to the technical field of bearings, in particular to a double-row serial integrated high-precision angular contact ball bearing.
Background
The traditional double-row serial integral angular contact ball bearing generally comprises a bearing outer ring, a bearing inner ring, a retainer and double-row rollers, and the bearing capacity inside the double-row serial integral angular contact ball bearing is insufficient due to structural limitation and cannot meet the bearing requirement.
The structure of the product can be referred to a serial angular contact ball bearing disclosed in Chinese patent document CN 212225784U.
In the above structure, the sizes and the numbers of the two rows of rolling bodies are inconsistent, wherein one row of rolling bodies has relatively low bearing capacity, and the other row of rolling bodies with low bearing capacity can determine the service life of the bearing. Therefore, the manufacturing of the special diamond roller and different dies is not suitable for small-batch production, and meanwhile, the inner space of the bearing is smaller, so that the lubricating grease is not easy to store, and the problems of low rotation efficiency, poor high-speed performance and the like of the rolling body are caused.
Disclosure of Invention
The summary of the utility model is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the utility model is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
In order to solve the technical problems mentioned in the background art section above, some embodiments of the present utility model provide a double-row tandem integrated high-precision angular contact ball bearing, including a bearing outer ring, an inner wall of which is provided with a first outer ring raceway and a second outer ring raceway which are distributed in parallel; the outer wall of the bearing inner ring is provided with a first inner ring raceway and a second inner ring raceway which are distributed in parallel; the first steel ball is positioned in a rollaway nest formed by the first outer ring rollaway nest and the first inner ring rollaway nest; the second steel ball is positioned in a rollaway nest formed by the second outer ring rollaway nest and the second inner ring rollaway nest; a first oil groove is arranged between the first outer ring raceway and the second outer ring raceway, and comprises a first bending part, a first slope part and a first convex part; one end of the first bending part is connected with the first outer ring raceway, the other end of the first bending part is connected with the first slope part, the other end of the first protruding part is connected with the first slope part, and the other end of the first protruding part is connected with the second outer ring raceway;
according to the utility model, through the arrangement of the first oil groove, enough space is provided in the bearing to store lubricating grease, so that the lubrication in the bearing is more sufficient, and meanwhile, the arrangement of the first convex part reduces the gap between the relative radial direction and the axial direction of the roller paths, so that the precision of the bearing is improved, the durability of the first steel ball and the second steel ball is ensured, and the precision, the high-speed performance and the load distribution of the bearing are further improved to be more uniform.
Further, the whole first oil groove is the ring channel, and the cell wall of first oil groove and bearing inner race inner wall rounding off.
Further, a second oil groove is arranged between the first inner ring raceway and the second inner ring raceway, and comprises a second bending part, a second slope part and a second convex part; one end of the second bending part is connected with the second inner ring raceway, the other end of the second bending part is connected with the second slope part, one end of the second protruding part is connected with the second slope part, and the other end of the second protruding part is connected with the second inner ring raceway.
Further, the whole second oil groove is the ring channel, and the cell wall of second oil groove and bearing inner race inner wall smooth transition.
Further, the bearing outer ring comprises a large outer ring end face and a small outer ring end face, the large outer ring end face is connected with a first corner portion on the inner peripheral surface of the bearing outer ring, the small outer ring end face is connected with a second corner portion on the inner peripheral surface of the bearing outer ring, and a first connecting portion is arranged between the second corner portion and a second outer ring raceway.
Further, the first corner, the second corner and the first connecting portion all adopt smooth surfaces.
Further, the bearing inner ring comprises an inner ring large end face and an inner ring small end face, the inner ring large end face is connected with a third corner portion on the outer peripheral face of the bearing inner ring, the inner ring small end face is connected with a fourth corner portion on the outer peripheral face of the bearing inner ring, a second connecting portion is arranged between the third corner portion and the second inner ring raceway, and smooth surfaces are adopted for the third corner portion, the fourth corner portion and the second connecting portion.
The utility model has the beneficial effects that: the double-row serial integrated high-precision angular contact ball bearing is good in oil storage effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model.
In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
In the drawings:
FIG. 1 is an overall schematic of an embodiment according to the present utility model;
FIG. 2 is a schematic structural view of a portion of an embodiment, primarily showing the bearing outer race and bearing inner race configuration;
fig. 3 is a schematic structural view of a portion of an embodiment, mainly showing the first oil groove and the second oil groove structures.
Reference numerals:
1. a bearing outer ring; 11. a first outer race track; 12. a second outer race track; 13. the large end face of the outer ring; 14. the small end face of the outer ring; 15. a first corner; 16. a second corner; 17. a first connection portion; 2. a bearing inner ring; 21. a first inner race track; 22. a second inner race track; 23. the large end face of the inner ring; 24. a small end face of the inner ring; 25. a third corner; 26. a fourth corner; 27. a second connecting portion; 3. a first steel ball; 4. a second steel ball; 5. a first holder; 6. a second holder; 7. a first oil groove; 71. a first bending part; 72. a first slope portion; 73. a first convex portion; 8. a second oil groove; 81. a second bending part; 82. a second slope portion; 83. and a second convex portion.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1-3, the double-row tandem integrated high-precision angular contact ball bearing comprises a bearing outer ring 1, a bearing inner ring 2, double-row rollers, a first retainer 5 and a second retainer 6; the inner wall of the bearing outer ring 1 is provided with a first outer ring raceway 11 and a second outer ring raceway 12, and the first outer ring raceway 11 and the second outer ring raceway 12 are angular contact ball channels and are distributed in parallel in series. The outer wall of the bearing inner ring 2 is provided with a first inner ring raceway 21 and a second inner ring raceway 22, and the first inner ring raceway 21 and the second inner ring raceway 22 are angular contact ball grooves and are distributed in parallel in series. So that double row roller raceways are formed between the first and second outer ring raceways 12 and the first and second inner ring raceways 22. The double-row roller comprises a first steel ball 3 and a second steel ball 4; the first steel ball 3 and the first retainer 5 are positioned in the rollaway nest formed by the first outer ring rollaway nest 11 and the first inner ring rollaway nest 21; the second steel balls 4 and the second cage 6 are located in the raceways formed by the second outer ring raceway 12 and the second inner ring raceway 22.
Specifically, the first steel ball 3 and the second steel ball 4 have the same size and the same center diameter. Therefore, under the same external dimension, the center diameters of the first steel ball 3 and the second steel ball 4 are as large, so that materials can be saved, the number of the steel balls is more, the diameter of the steel balls is larger, and the bearing capacity is stronger. The problem of different bearing capacities of the steel balls is avoided, so that the two steel balls are uniformly loaded in the axial direction, and the service life is longer.
Specifically, the first retainer 5 and the second retainer 6 are made of nylon 46, nylon 66 or phenolic cloth pressing pipes, 25% or 30% of glass fibers are added to the nylon 46 and the nylon 66, and the phenolic cloth pressing pipes do not need to be added with glass fibers.
Specifically, the bearing outer ring 1 comprises an outer ring large end surface 13 and an outer ring small end surface 14, the inner peripheral surfaces of the outer ring large end surface 13 and the bearing outer ring 1 are connected with a first corner 15, the inner peripheral surfaces of the outer ring small end surface 14 and the bearing outer ring 1 are connected with a second corner 16, and a first connecting part 17 is arranged between the second corner 16 and the second outer ring raceway 12; the first corner 15, the second corner 16, and the first connecting portion 17 each adopt a smooth surface. Therefore, the rotating surfaces of the first steel ball 3 and the second steel ball 4 are not damaged due to excessively reduced service life, the durability of the rotating surfaces is ensured, the axial space is ensured, and the rigidity and the bearing capacity of the bearing are improved.
Specifically, the bearing inner ring 2 includes a large inner ring end surface 23 and a small inner ring end surface 24, the outer circumferential surfaces of the large inner ring end surface 23 and the bearing inner ring 2 are connected with a third triangle portion 25, the outer circumferential surfaces of the small inner ring end surface 24 and the bearing inner ring 2 are connected with a fourth angle portion 26, and a second connection portion 27 is further provided between the third triangle portion 25 and the second inner ring raceway 22; the third corner 25, the fourth corner 26, and the second connecting portion 27 are each smooth surfaces.
Specifically, a first oil groove 7 is arranged on the bearing outer ring 1 between the first outer ring raceway 11 and the second outer ring raceway 12, and the whole first oil groove 7 is an annular groove and is in smooth transition with the inner wall of the bearing outer ring 1; the first oil groove 7 includes a first bent portion 71, a first slope portion 72, and a first convex portion 73; the first bending portion 71 has one end connected to the first outer race track 11 and the other end connected to the first slope portion 72, and the first slope portion 72 is provided so that the bearing has a sufficient space to store grease therein, thereby making lubrication inside the bearing more sufficient. One end of the first convex part 73 is connected with the first slope part 72, the other end is connected with the second outer ring raceway 12, and the arrangement of the first convex part 73 reduces the gap between the opposite radial direction and the axial direction of the raceways, so that the precision of the raceways is improved, the durability of the first steel ball 3 and the second steel ball 4 is ensured, and the bearing precision, the high-speed performance and the load distribution are improved more uniformly.
Specifically, a second oil groove 8 is arranged on the bearing inner ring 2 between the first inner ring raceway 21 and the second inner ring raceway 22, and the second oil groove 8 is an annular groove integrally and is in smooth transition with the inner wall of the bearing inner ring 2. The second oil groove 8 includes a second bent portion 81, a second slope portion 82, and a second convex portion 83; one end of the second bending part 81 is connected with the second inner ring raceway 22, and the other end is connected with the second slope part 82, and the second slope part 82 is arranged to enable the interior of the bearing to have enough space to store lubricating grease, so that the lubrication of the interior of the bearing is more sufficient. One end of the second convex part 83 is connected with the second slope part 82, the other end of the second convex part 83 is connected with the second inner ring raceway 22, and the arrangement of the second convex part 83 reduces the gap between the opposite radial direction and the axial direction of the raceways, so that the precision of the second convex part is improved, the durability of the first steel ball 3 and the second steel ball 4 is ensured, and the bearing precision, the high-speed performance and the load distribution are improved more uniformly. Therefore, the precision is ensured by changing the original repair or the spacer bush addition selection into the manufacturing groove center distance a, the precision is reduced, the discrete problem of groove position assurance in the production and processing process can be well solved, the manufacturing difficulty and the manufacturing cost are reduced, the selection and preparation cost is reduced, and the installation is convenient. Meanwhile, the space of the sealing ring structure can be reduced relative to the original structure, so that the structure is more compact, an axial space is provided for the heavy-load design, and the rigidity and the bearing capacity of the bearing are improved.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the utility model. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (7)
1. A double row tandem integrated high precision angular contact ball bearing comprising:
the inner wall of the bearing outer ring is provided with a first outer ring raceway and a second outer ring raceway which are distributed in parallel;
the outer wall of the bearing inner ring is provided with a first inner ring raceway and a second inner ring raceway which are distributed in parallel;
the first steel ball is positioned in a rollaway nest formed by the first outer ring rollaway nest and the first inner ring rollaway nest;
the second steel ball is positioned in a rollaway nest formed by the second outer ring rollaway nest and the second inner ring rollaway nest;
the method is characterized in that:
a first oil groove is arranged between the first outer ring raceway and the second outer ring raceway, and comprises a first bending part, a first slope part and a first convex part; one end of the first bending part is connected with the first outer ring raceway, the other end of the first bending part is connected with the first slope part, the other end of the first protruding part is connected with the first slope part, and the other end of the first protruding part is connected with the second outer ring raceway.
2. The double row tandem integrated high precision angular contact ball bearing of claim 1, wherein: the whole ring channel that is of first oil groove, the cell wall of first oil groove with the smooth transition of bearing inner race inner wall.
3. The double row tandem integrated high precision angular contact ball bearing of claim 1, wherein: a second oil groove is arranged between the first inner ring raceway and the second inner ring raceway, and comprises a second bending part, a second slope part and a second convex part; one end of the second bending part is connected with the second inner ring raceway, the other end of the second bending part is connected with the second slope part, one end of the second protruding part is connected with the second slope part, and the other end of the second protruding part is connected with the second inner ring raceway.
4. The double row tandem integrated high precision angular contact ball bearing of claim 3, wherein: the second oil groove is integrally an annular groove, and the groove wall of the second oil groove and the inner wall of the bearing inner ring are in smooth transition.
5. The double row tandem integrated high precision angular contact ball bearing of claim 1, wherein: the bearing outer ring comprises a large outer ring end face and a small outer ring end face, the large outer ring end face and the inner peripheral surface of the bearing outer ring are connected with a first corner, the small outer ring end face and the inner peripheral surface of the bearing outer ring are connected with a second corner, and a first connecting part is arranged between the second corner and the second outer ring raceway.
6. The double row tandem integrated high precision angular contact ball bearing of claim 5, wherein: the first corner, the second corner and the first connecting part are smooth surfaces.
7. The double row tandem integrated high precision angular contact ball bearing of claim 1, wherein: the bearing inner ring comprises an inner ring large end face and an inner ring small end face, the inner ring large end face and the outer peripheral surface of the bearing inner ring are connected with a third corner, the inner ring small end face and the outer peripheral surface of the bearing inner ring are connected with a fourth corner, a second connecting portion is arranged between the third corner and the second inner ring raceway, and the third corner, the fourth corner and the second connecting portion all adopt smooth surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321541624.5U CN220101803U (en) | 2023-06-15 | 2023-06-15 | Double-row serial integrated high-precision angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321541624.5U CN220101803U (en) | 2023-06-15 | 2023-06-15 | Double-row serial integrated high-precision angular contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220101803U true CN220101803U (en) | 2023-11-28 |
Family
ID=88848613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321541624.5U Active CN220101803U (en) | 2023-06-15 | 2023-06-15 | Double-row serial integrated high-precision angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220101803U (en) |
-
2023
- 2023-06-15 CN CN202321541624.5U patent/CN220101803U/en active Active
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| GR01 | Patent grant |