A bearing ring
By designing rotating grooves and oil injection holes on the bearing rings and utilizing sealing components to achieve convenient opening and closing and triple sealing, the problems of difficult lubricant injection and leakage are solved, improving the convenience and efficiency of lubrication operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINCHANG MINGYU BEARING CO LTD
- Filing Date
- 2025-08-16
- Publication Date
- 2026-06-02
AI Technical Summary
Existing ball bearings are difficult to lubricate and the lubricating oil is prone to leakage, resulting in waste.
A bearing ring was designed with a groove on the inner wall and a rotating groove and an oil injection hole on the top wall. The cover is rotatably connected, and the oil injection hole can be easily opened and closed and triple sealed through the sealing component to prevent lubricating oil leakage.
It enables convenient injection and effective sealing of lubricating oil, avoids lubricating oil leakage, and improves the convenience and efficiency of lubrication operations.
Smart Images

Figure CN224315375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing technology, specifically to a bearing ring. Background Technology
[0002] Bearings are an important component in modern machinery. Their main function is to support rotating parts of the machine, reduce the coefficient of friction during movement, and ensure rotational accuracy. Ball bearings, also known as spherical bearings, use balls as rolling elements. They cannot withstand large loads and are mostly used in light-load industrial applications.
[0003] Currently, existing ball bearings typically consist of an outer ring and an inner ring, with a cage between the outer and inner rings. Several balls are rotatably connected to the cage, and grooves for the balls to roll are provided on both the outer and inner rings. When the balls roll in the grooves, some balls will experience severe friction with the grooves. Over time, this can easily lead to wear and deformation of the balls, requiring regular lubrication.
[0004] In existing ball bearings, lubricating oil needs to be injected into the gap between the outer and inner rings to ensure even application to the balls. However, due to the extremely narrow gap between them, lubrication is difficult. Furthermore, since the gap is exposed, the lubricating oil applied to the balls is prone to leaking out of the gap after lubrication, resulting in waste. Utility Model Content
[0005] The purpose of this utility model is to provide a bearing ring to solve the above-mentioned problems.
[0006] This utility model achieves the above-mentioned objective through the following technical solution: a bearing ring, comprising a ring body, a groove formed circumferentially on the inner sidewall of the ring body, a rotating groove formed on the top wall of the ring body, a plurality of oil injection holes formed on the bottom wall of the rotating groove, a cover for sealing the oil injection holes rotatably connected inside the rotating groove, the cover having an opening for communicating with the oil injection holes, an elastic gasket made of rubber material provided on the bottom wall of the rotating groove, the elastic gasket having a plurality of through holes communicating with the oil injection holes, and a sealing assembly provided on the ring body for sealing the cover inside the rotating groove.
[0007] As a further feature of this utility model, the sealing component includes a threaded sleeve and a sealing cover plate disposed on the threaded sleeve. An external thread structure is provided on the outer side wall of the threaded sleeve, and an internal thread structure matching the external thread structure is provided on the inner side wall of the rotating groove. A groove for the threaded sleeve to be screwed in is formed between the cover plate and the inner side wall of the rotating groove.
[0008] As a further feature of this invention, the side wall of the closed cover is provided with several anti-slip grooves.
[0009] As a further feature of this invention, the top wall of the cover is provided with several force-applying grooves.
[0010] As a further feature of this invention, a protruding edge is provided on the outer side wall of the cover, and an annular groove is provided on the outer side wall of the rotating groove along the circumferential direction, with the protruding edge rotatably connected inside the annular groove.
[0011] As a further feature of this invention, the main body of the collar is made of GCr15 steel.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this invention, during the oil filling operation, the sealing component can first release the seal on the cap, then rotate the cap to move the opening. When the opening moves to the oil filling hole position, it will connect with the oil filling hole, opening the oil filling hole. Lubricating oil can then be drawn out with a syringe and injected into the groove through the oil filling hole, thus evenly coating the balls in the groove for lubrication. The operation is relatively convenient and simple. After the operation is completed, the position of the cap can be adjusted so that the opening moves to a position between adjacent oil filling holes. Then, the sealing component can seal the cap inside the rotating groove. The cap seals the oil filling hole, the elastic gasket seals the space between the cap and the rotating groove, and the sealing component seals the cap, achieving triple sealing of the oil filling hole, preventing lubricating oil from leaking through the oil filling hole and avoiding waste. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the present invention after the sealing component has been removed;
[0016] Figure 3 This is a schematic diagram of the structure of the enclosed component in this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the cap in this utility model;
[0018] Figure 5 This is a half-sectional view of the main body of the collar and the elastic washer in this utility model;
[0019] Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.
[0020] Reference numerals in the attached drawings: 1. Ring body; 2. Groove; 3. Rotating groove; 4. Oil injection hole; 5. Cover; 6. Opening; 7. Elastic gasket; 8. Through hole; 9. Threaded sleeve; 10. Closed cover plate; 11. Anti-slip groove; 12. Force application groove; 13. Raised edge; 14. Annular groove. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-6As shown, a bearing ring includes a ring body 1 made of GCr15 steel. GCr15 steel has high hardness, high wear resistance, and high heat resistance, thus ensuring the durability of the ring body 1. A groove 2 is formed circumferentially on the inner wall of the ring body 1. The ring body 1 serves as the outer ring of the bearing and needs to be used in conjunction with an inner ring, cage, and balls. A rotating groove 3 is formed on the top wall of the ring body 1, and multiple oil injection holes 4 are formed on the bottom wall of the rotating groove 3. A sealing device for sealing the oil injection holes 4 is rotatably connected inside the rotating groove 3. The cover 5 has an opening 6 that communicates with the oil filling hole 4. An elastic gasket 7, made of rubber, is provided on the bottom wall of the rotating groove 3. Multiple through holes 8 communicating with the oil filling hole 4 are provided on the elastic gasket 7. A sealing assembly is provided on the main body 1 of the collar to seal the cover 5 inside the rotating groove 3. During oil filling, the sealing assembly can be released from the cover 5 first, and then the cover 5 can be rotated, causing the opening 6 to move accordingly. When the opening 6 moves to the position of the oil filling hole 4, it will communicate with the oil filling hole. The connection 4 allows the oil injection hole 4 to be opened, enabling the use of a syringe to draw lubricating oil and then inject it into the groove 2 through the oil injection hole 4. This ensures even lubrication of the balls within the groove 2, making the operation convenient and simple. After operation, the position of the cap 5 is adjusted so that the opening 6 is positioned between adjacent oil injection holes 4. Then, the cap 5 is sealed inside the rotating groove 3 by the sealing component. The cap 5 seals the oil injection hole 4, the elastic gasket 7 seals the space between the cap 5 and the rotating groove 3, and the sealing component seals the cap 5. It can achieve triple sealing of the oil filling hole 4 to prevent lubricating oil from leaking through the oil filling hole 4 and avoid waste. Several force-applying grooves 12 are provided on the top wall of the cover 5. The force-applying grooves 12 can serve as the force points for rotating the cover 5, making the operation more convenient and labor-saving. A protruding edge 13 is provided on the outer wall of the cover 5, and an annular groove 14 is provided circumferentially on the outer wall of the rotating groove 3. The protruding edge 13 is rotatably connected inside the annular groove 14. Through the rotatable connection of the protruding edge 13 in the annular groove 14, the cover 5 can be smoothly rotated in the rotating groove 3.
[0023] Please see Figure 1-3As shown, the sealing assembly includes a threaded sleeve 9 and a sealing cover plate 10 disposed on the threaded sleeve 9. An external thread structure is formed on the outer side wall of the threaded sleeve 9, and an internal thread structure matching the external thread structure is formed on the inner side wall of the rotating groove 3. A groove for screwing the threaded sleeve 9 is formed between the sealing cover 5 and the inner side wall of the rotating groove 3. By screwing the threaded sleeve 9 into the groove, it is threadedly connected to the rotating groove 3, and the sealing cover plate 10 can be fixed on the collar body 1, thereby sealing the sealing cover 5 inside the rotating groove 3. When it is necessary to release the seal, simply screw the sealing cover plate 10 to unscrew the threaded sleeve 9 from the groove. The operation is relatively convenient and simple. In addition, several anti-slip grooves 11 are formed on the side wall of the sealing cover plate 10, which greatly increases the friction coefficient on the side wall of the sealing cover plate 10, so that there is no slippage when screwing the sealing cover plate 10, making the operation easier and less strenuous.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A bearing ring, comprising a ring body (1), wherein a groove (2) is provided circumferentially on the inner sidewall of the ring body (1), characterized in that: The top wall of the ring body (1) is provided with a rotating groove (3), and the bottom wall of the rotating groove (3) is provided with multiple oil injection holes (4). A cover (5) for sealing the oil injection holes (4) is rotatably connected inside the rotating groove (3). An opening (6) is provided on the cover (5) for communicating with the oil injection holes (4). An elastic gasket (7) is provided on the bottom wall of the rotating groove (3). The elastic gasket (7) is made of rubber material. Multiple through holes (8) communicating with the oil injection holes (4) are provided on the elastic gasket (7). A sealing component is provided on the ring body (1) for sealing the cover (5) inside the rotating groove (3).
2. A bearing ring according to claim 1, characterized in that: The sealing assembly includes a threaded sleeve (9) and a sealing cover plate (10) disposed on the threaded sleeve (9). The outer side wall of the threaded sleeve (9) is provided with an external thread structure, and the inner side wall of the rotating groove (3) is provided with an internal thread structure that matches the external thread structure. A groove for the threaded sleeve (9) to be screwed in is formed between the cover plate (5) and the inner side wall of the rotating groove (3).
3. A bearing ring according to claim 2, characterized in that: The side wall of the closed cover plate (10) is provided with several anti-slip grooves (11).
4. A bearing ring according to claim 1, characterized in that: The top wall of the cover (5) is provided with several force-applying grooves (12).
5. A bearing ring according to claim 1, characterized in that: The outer side wall of the cover (5) is provided with a protruding edge (13), and the outer side wall of the rotating groove (3) is provided with an annular groove (14) along the circumferential direction. The protruding edge (13) is rotatably connected inside the annular groove (14).
6. A bearing ring according to claim 1, characterized in that: The main body of the ring (1) is made of GCr15 steel.