High-stability angular contact ball bearing

By designing the combination of bolts, limit blocks, and outer rings, the individual replacement of steel balls in angular contact ball bearings is achieved, solving the problem in existing technologies where the entire bearing needs to be replaced when steel balls are damaged, thus reducing replacement costs. Furthermore, the combination of sliding columns, sliders, and springs enables rapid maintenance and lubrication of the sealing rings, extending their service life.

CN224315364UActive Publication Date: 2026-06-02CHANGZHOU SBEJIA NEEDLE ROLLING BEARING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU SBEJIA NEEDLE ROLLING BEARING CO LTD
Filing Date
2025-10-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Due to their integrated design, existing angular contact ball bearings require the entire bearing to be replaced when a single ball fails, leading to unnecessary increased replacement costs.

Method used

A highly stable angular contact ball bearing was designed. The individual replacement of the steel balls is achieved through the cooperation of bolts, limit blocks and outer rings. The replacement of the steel balls is achieved by using a rotating component and a slot structure to allow the limit block to slide in the slot. At the same time, the design of the sealing ring and lubrication structure is achieved through the cooperation of sliding column, slider and spring.

Benefits of technology

This allows for the replacement of only the damaged steel ball when it fails individually, reducing unnecessary replacement costs. It also extends the service life of the sealing ring through quick maintenance, reduces frictional wear, and ensures good working condition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bearing field discloses a high stability angular contact ball bearing, including the outer ring, the inside sliding joint of outer ring has first slide post, the outer wall of first slide post abuts with second sliding block, the inner wall sliding joint of second sliding block is in the outer ring, the outer wall fixedly connected with first slide plate of first slide post, the inner wall sliding joint of first slide plate is in the outer ring, one end fixedly connected with one end of first spring of first slide plate, the other end fixedly connected in the inner wall of outer ring of first spring, in the utility model, through the mutual cooperation between steel ball, bolt, limit block and outer ring, reached the effect that steel ball is replaced, solved the problem that single steel ball damage replaces whole component, is favorable to when steel ball is damaged alone, only replaces the damaged steel ball, need not to replace whole component, reduces unnecessary replacement cost.
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Description

Technical Field

[0001] This utility model relates to the field of bearings, and in particular to a high-stability angular contact ball bearing. Background Technology

[0002] Angular contact ball bearings, as a key component capable of simultaneously bearing radial and axial loads, are widely used in high-precision, high-speed transmission systems such as machine tool spindles, automotive gearboxes, and aero engines. The stability of their performance directly affects the operating accuracy, efficiency, and service life of the entire mechanical system, thus occupying an irreplaceable position in industrial production. However, under the influence of long-term high-speed operation, load fluctuations, and harsh working conditions (such as dust, high temperature, and vibration), they are prone to wear, cracks, and spalling.

[0003] However, in the existing technology, due to the integrated design, when a single steel ball is damaged during actual use, the entire bearing needs to be replaced. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a highly stable angular contact ball bearing, which aims to improve the problem in the prior art where, due to the integrated design, the entire bearing needs to be replaced when a single ball is damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-stability angular contact ball bearing, comprising an outer ring, a first sliding column slidably connected inside the outer ring, a second slider abutting against the outer wall of the first sliding column, the outer wall of the second slider slidably connected to the inner wall of the outer ring, a first sliding plate fixedly connected to the outer wall of the first sliding column, the outer wall of the first sliding plate slidably connected to the inner wall of the outer ring, one end of the first sliding plate fixedly connected to one end of the first spring, the other end of the first spring fixedly connected to the inner wall of the outer ring, a first groove and a second groove formed on the outer wall of the outer ring, a limiting block slidably connected to the inner wall of the outer ring, the outer wall of the limiting block slidably connected to the inner wall of the second groove, a third groove formed on the outer wall of the limiting block, and a rotating assembly provided on the inner wall of the outer ring.

[0006] The above technical solution works as follows: during the rotation of the bolt, it rotates on the inner wall of the third slot. When the bolt rotates out of the third slot, it pulls the limiting block outward, causing the limiting block to slide on the inner wall of the second slot during the movement. This achieves the effect of replacing the steel ball. This is beneficial because when a steel ball is damaged individually, only the damaged steel ball needs to be replaced, without replacing the entire component, thus reducing unnecessary replacement costs.

[0007] Preferably, the rotating assembly includes a bolt, the outer wall of which is threadedly connected to the inner wall of a first slot, and the outer wall of which is threadedly connected to the inner wall of a third slot.

[0008] Preferably, a steel ball is rotatably connected to the inner wall of the outer ring, and a fixing frame is rotatably connected to the outer wall of the steel ball. The outer wall of the fixing frame is rotatably connected to the inner wall of the inner ring and the inner wall of the outer ring.

[0009] Preferably, the bottom end of the steel ball is rotatably connected to an inner ring, the inner wall of the inner ring is rotatably connected to a sealing ring, and the inner wall of the sealing ring is slidably connected to the outer wall of the second slider.

[0010] Preferably, the inner ring is slidably connected to a second sliding post, the outer wall of the second sliding post abuts against a first slider, the outer wall of the first slider is slidably connected to the inner wall of the inner ring, the outer wall of the first slider is slidably connected to the inner wall of the sealing ring, and the outer wall of the second sliding post is fixedly connected to a second sliding plate.

[0011] Preferably, one end of the second spring is fixedly connected to the outer wall of the second slide, and the other end of the second spring is fixedly connected to the inner wall of the inner ring.

[0012] Preferably, a third sliding post is slidably connected inside the sealing ring, a third sliding plate is fixedly connected to the outer wall of the third sliding post, a second slider is fixedly connected to the outer wall of the third sliding post, one end of a third spring is fixedly connected to the outer wall of the third sliding plate, and the other end of the third spring is fixedly connected to the inner wall of the sealing ring.

[0013] Preferably, an oil reservoir is fixedly connected to the inner wall of the outer ring, an oil tank plug is slidably connected inside the oil reservoir, the outer wall of the oil tank plug is slidably connected to the inner wall of the outer ring, and an oil outlet is fixedly connected to the upper surface of the oil reservoir, the outer wall of the oil outlet is fixedly connected to the inner wall of the outer ring.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the steel ball is replaced by the cooperation between the steel ball, bolt, limiting block and outer ring. This solves the problem of replacing the whole part when a single steel ball is damaged. It is beneficial to replace only the damaged steel ball when a single steel ball is damaged, without replacing the whole part, thus reducing unnecessary replacement costs.

[0016] 2. In this utility model, the mutual cooperation between the first sliding column, the second sliding column, the first slider, the second slider, the outer ring, the inner ring, the sealing ring, the third sliding column, the third spring, the first spring, and the second spring achieves the effect of maintaining the sealing ring, which is beneficial to quickly maintain the sealing ring and extend its service life.

[0017] 3. In this utility model, the oil tank plug, oil reservoir, outer ring, oil outlet and steel ball are coordinated to achieve the effect of lubrication of steel ball, which helps to reduce frictional loss of steel ball during operation and ensure good working condition. Attached Figure Description

[0018] Figure 1 This is a perspective view of a high-stability angular contact ball bearing proposed in this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the inner ring of a high-stability angular contact ball bearing proposed in this utility model.

[0020] Figure 3 This is a partial schematic diagram of the bolt structure of a high-stability angular contact ball bearing proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of a partial structure of the steel balls in a high-stability angular contact ball bearing proposed in this utility model.

[0022] Figure 5 This is a cross-sectional schematic diagram of the internal structure of the outer ring of a high-stability angular contact ball bearing proposed in this utility model;

[0023] Figure 6 This is a cross-sectional schematic diagram of the internal structure of the sealing ring of a high-stability angular contact ball bearing proposed in this utility model.

[0024] Figure 7 This is a cross-sectional schematic diagram of the internal structure of the oil reservoir of a high-stability angular contact ball bearing proposed in this utility model.

[0025] Legend:

[0026] 1. Outer ring; 2. First sliding column; 3. First sliding plate; 4. First spring; 5. Second sliding column; 6. Second sliding plate; 7. Second spring; 8. First slot; 9. Second slot; 10. Limiting block; 11. Third slot; 12. Bolt; 13. Steel ball; 14. Fixing bracket; 15. Inner ring; 16. Sealing ring; 17. Third sliding column; 18. Third sliding plate; 19. Third spring; 20. First slider; 21. Second slider; 22. Oil reservoir; 23. Oil tank plug; 24. Oil outlet. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example 1:

[0029] Reference Figure 1 , Figure 2 , Figure 3 An embodiment of this utility model provides a high-stability angular contact ball bearing, comprising an outer ring 1, a first sliding column 2 slidably connected inside the outer ring 1, a second slider 21 abutting against the outer wall of the first sliding column 2, the outer wall of the second slider 21 slidably connected to the inner wall of the outer ring 1, a first sliding plate 3 fixedly connected to the outer wall of the first sliding column 2, the outer wall of the first sliding plate 3 slidably connected to the inner wall of the outer ring 1, one end of the first sliding plate 3 fixedly connected to one end of the first spring 4, the other end of the first spring 4 fixedly connected to the inner wall of the outer ring 1, a first slot 8 and a second slot 9 opened on the outer wall of the outer ring 1, a limiting block 10 slidably connected to the inner wall of the outer ring 1, the outer wall of the limiting block 10 slidably connected to the inner wall of the second slot 9, a third slot 11 opened on the outer wall of the limiting block 10, and a rotating assembly provided on the inner wall of the outer ring 1.

[0030] Specifically, the outer ring 1 can limit the movement of the first sliding column 2, ensuring that the first sliding column 2 always moves in a horizontal straight line during the movement without wobbling. The outer ring 1 can provide sliding space for the first sliding plate 3. One end of the first sliding plate 3 is fixedly connected to one end of the first spring 4, and the other end of the first spring 4 is fixedly connected to the inner wall of the outer ring 1 to limit the elastic range of the first spring 4. The second slot 9 opened on the outer wall of the outer ring 1 can limit the movement of the limiting block 10. The limiting block 10 is used to prevent the steel ball 13 from popping out during rotation. The outer ring 1 and the sealing ring 16 can provide sliding space for the second slider 21.

[0031] Reference Figure 1 and Figure 3 The rotating assembly includes a bolt 12, the outer wall of which is threadedly connected to the inner wall of the first slot 8, and the outer wall of which is threadedly connected to the inner wall of the third slot 11.

[0032] Specifically, the first slot 8 and the third slot 11 can limit the bolt 12, ensuring that the bolt 12 always moves in a circle during rotation. The bolt 12 is used to fix the limit block 10, thereby achieving the effect of replacing the steel ball 13.

[0033] Reference Figure 4 , Figure 5 and Figure 6 A steel ball 13 is rotatably connected to the inner wall of the outer ring 1, and a fixing frame 14 is rotatably connected to the outer wall of the steel ball 13. The outer wall of the fixing frame 14 is rotatably connected to the inner wall of the inner ring 15 and the inner wall of the outer ring 1. The bottom end of the steel ball 13 is rotatably connected to the inner ring 15, and a sealing ring 16 is rotatably connected to the inner wall of the inner ring 15. The inner wall of the sealing ring 16 is slidably connected to the outer wall of the second slider 21. A second sliding post 5 is slidably connected inside the inner ring 15. The outer wall of the second sliding post 5 abuts against the first slider 20. The outer wall of the first slider 20 is slidably connected to the inner wall of the inner ring 15. The sealing ring 16 is movably connected to the inner wall of the sealing ring 16. The outer wall of the second sliding post 5 is fixedly connected to the second sliding plate 6. One end of the second spring 7 is fixedly connected to the outer wall of the second sliding plate 6, and the other end of the second spring 7 is fixedly connected to the inner wall of the inner ring 15. The sealing ring 16 is slidably connected to the inside. The outer wall of the third sliding post 17 is fixedly connected to the second slider 21. The outer wall of the third sliding post 17 is fixedly connected to the third sliding plate 18. One end of the third spring 19 is fixedly connected to the outer wall of the third sliding plate 18, and the other end of the third spring 19 is fixedly connected to the inner wall of the sealing ring 16.

[0034] Specifically, the fixing bracket 14 can limit the movement of the steel ball 13, ensuring that the steel ball 13 will not collide during rotation. The steel ball 13 is used to convert sliding friction into rolling friction, reducing the frictional resistance when the bearing is working. The sealing ring 16 is used to seal and prevent external dust and impurities from entering the bearing, while also preventing internal lubricating oil leakage. One end of the second spring 7 is fixedly connected to the outer wall of the second slide plate 6, and the other end of the second spring 7 is fixedly connected to the inner wall of the inner ring 15, which can ensure that the second spring 7 maintains a certain contraction force. The sealing ring 16 can provide sliding space for the third slide plate 18. One end of the third spring 19 is fixedly connected to the outer wall of the third slide plate 18, and the other end of the third spring 19 is fixedly connected to the inner wall of the sealing ring 16, which is used to limit the elastic range of the third spring 19 and provide elastic support and buffer for the sealing ring 16. The inner ring 15 and the sealing ring 16 can provide sliding space for the first slider 20.

[0035] Example 2:

[0036] Reference Figure 7 An oil reservoir 22 is fixedly connected to the inner wall of the outer ring 1. An oil tank plug 23 is slidably connected inside the oil reservoir 22. The outer wall of the oil tank plug 23 is slidably connected to the inner wall of the outer ring 1. An oil outlet 24 is fixedly connected to the upper surface of the oil reservoir 22. The outer wall of the oil outlet 24 is fixedly connected to the inner wall of the outer ring 1.

[0037] Specifically, when the steel ball 13 needs lubrication, the oil tank plug 23 is pulled outward, causing the oil tank plug 23 to slide inside the oil reservoir 22 during its movement. At the same time, the oil tank plug 23 slides against the inner wall of the outer ring 1 during its movement, allowing air to enter the oil reservoir 22 through the inner wall of the outer ring 1. During this process, the lubricating oil inside the oil reservoir 22 lubricates the steel ball 13 through the oil outlet 24, thereby achieving the effect of lubricating the steel ball 13. This helps to reduce the frictional loss of the steel ball 13 during operation and ensures good working condition.

[0038] Working principle: When the steel ball 13 is damaged and needs to be replaced, the bolt 12 is rotated, causing the bolt 12 to rotate on the inner wall of the first slot 8 during the rotation process. At the same time, the bolt 12 will also rotate on the inner wall of the third slot 11 during the rotation process. When the bolt 12 rotates to the point of disengaging from the third slot 11, the limiting block 10 is pulled outward, causing the limiting block 10 to slide on the inner wall of the second slot 9 during the movement process. This achieves the effect of replacing the steel ball 13. It is beneficial to replace only the damaged steel ball 13 when the steel ball 13 is damaged, without replacing the entire component, thus reducing unnecessary replacement costs.

[0039] When maintaining the sealing ring 16, pressing the first sliding post 2 and the second sliding post 5 causes the first sliding post 2 to slide against the inner wall of the outer ring 1 during its movement. This causes the first sliding post 2 to move the first sliding plate 3, which in turn slides against the inner wall of the outer ring 1. The first sliding plate 3 then moves the first spring 4, which in turn moves the second slider 21, causing it to slide against the inner wall of the outer ring 1. Simultaneously, the second slider 21 slides against the inner wall of the sealing ring 16, causing the second slider 21 to move the third sliding post 17. This movement of the third sliding post 17 then moves the third sliding plate 18, which slides against the inner wall of the sealing ring 16. This movement of the third sliding plate 18 then moves the third spring 19, causing the second sliding post 5 to slide against the inner wall of the inner ring 15. During the movement of the second sliding column 5, the second sliding plate 6 is moved, causing the second sliding plate 6 to slide against the inner wall of the outer ring 1. This movement of the second sliding plate 6 then moves the second spring 7, which in turn moves the second sliding column 5, causing the first slider 20 to move. The first slider 20 then slides against the inner wall of the inner ring 15 and the inner wall of the sealing ring 16. This movement of the first slider 20 then moves the third sliding column 17, which in turn moves the third sliding plate 18, causing it to slide against the inner wall of the sealing ring 16. This movement of the third sliding plate 18 then moves the third spring 19. After maintenance, the first spring 4, the third spring 19, and the second spring 7 reset, thus achieving the effect of maintaining the sealing ring 16. This facilitates quick maintenance of the sealing ring 16 and extends its service life.

[0040] In practical use, this highly stable angular contact ball bearing can not only replace the steel ball 13, which is beneficial when the steel ball 13 is damaged, but also allows for the replacement of only the damaged steel ball 13 without replacing the entire component, reducing unnecessary replacement costs. In addition, it can also maintain the sealing ring 16, which is beneficial for quick maintenance of the sealing ring 16 and extending its service life.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-stability angular contact ball bearing, comprising an outer ring (1), characterized in that: The outer ring (1) is slidably connected to a first sliding post (2), the outer wall of the first sliding post (2) abuts against a second slider (21), the outer wall of the second slider (21) is slidably connected to the inner wall of the outer ring (1), the outer wall of the first sliding post (2) is fixedly connected to a first sliding plate (3), the outer wall of the first sliding plate (3) is slidably connected to the inner wall of the outer ring (1), one end of the first sliding plate (3) is fixedly connected to one end of a first spring (4), the other end of the first spring (4) is fixedly connected to the inner wall of the outer ring (1), the outer wall of the outer ring (1) is provided with a first slot (8), the outer wall of the outer ring (1) is provided with a second slot (9), the inner wall of the outer ring (1) is slidably connected to a limit block (10), the outer wall of the limit block (10) is slidably connected to the inner wall of the second slot (9), the outer wall of the limit block (10) is provided with a third slot (11), and the inner wall of the outer ring (1) is provided with a rotating component.

2. The high-stability angular contact ball bearing according to claim 1, characterized in that: The rotating assembly includes a bolt (12) whose outer wall is threaded to the inner wall of a first slot (8) and whose outer wall is threaded to the inner wall of a third slot (11).

3. The high-stability angular contact ball bearing according to claim 1, characterized in that: The inner wall of the outer ring (1) is rotatably connected to a steel ball (13), and the outer wall of the steel ball (13) is rotatably connected to a fixing frame (14). The outer wall of the fixing frame (14) is rotatably connected to the inner wall of the inner ring (15) and the inner wall of the outer ring (1).

4. The high-stability angular contact ball bearing according to claim 3, characterized in that: The bottom end of the steel ball (13) is rotatably connected to an inner ring (15), and the inner wall of the inner ring (15) is rotatably connected to a sealing ring (16). The inner wall of the sealing ring (16) is slidably connected to the outer wall of the second slider (21).

5. A high-stability angular contact ball bearing according to claim 4, characterized in that: The inner ring (15) is slidably connected to a second sliding post (5), the outer wall of the second sliding post (5) abuts against a first slider (20), the outer wall of the first slider (20) is slidably connected to the inner wall of the inner ring (15), the outer wall of the first slider (20) is slidably connected to the inner wall of the sealing ring (16), and the outer wall of the second sliding post (5) is fixedly connected to a second sliding plate (6).

6. A high-stability angular contact ball bearing according to claim 5, characterized in that: One end of the second spring (7) is fixedly connected to the outer wall of the second slide (6), and the other end of the second spring (7) is fixedly connected to the inner wall of the inner ring (15).

7. A high-stability angular contact ball bearing according to claim 4, characterized in that: The sealing ring (16) is slidably connected to a third sliding post (17), and a second slider (21) is fixedly connected to the outer wall of the third sliding post (17). A third sliding plate (18) is fixedly connected to the outer wall of the third sliding post (17), and one end of a third spring (19) is fixedly connected to the outer wall of the third sliding plate (18). The other end of the third spring (19) is fixedly connected to the inner wall of the sealing ring (16).

8. A high-stability angular contact ball bearing according to claim 1, characterized in that: An oil storage tank (22) is fixedly connected to the inner wall of the outer ring (1). An oil tank plug (23) is slidably connected inside the oil storage tank (22). The outer wall of the oil tank plug (23) is slidably connected to the inner wall of the outer ring (1). An oil outlet (24) is fixedly connected to the upper surface of the oil storage tank (22). The outer wall of the oil outlet (24) is fixedly connected to the inner wall of the outer ring (1).