Self-lubricating stainless steel bearing
By introducing roller and guide groove structures into self-lubricating stainless steel bearings, the problem of poor sliding effect caused by friction loss in existing self-lubricating bearings is solved, achieving automatic lubrication and high-efficiency lubrication, and improving the practicality of the bearings.
Patent Information
- Application Number
- CN202520107834.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing self-lubricating bearings suffer from poor sliding performance due to friction loss and other factors during operation, which affects the overall practicality of the bearings.
A self-lubricating stainless steel bearing was designed. By setting a roller between the outer and inner rings, the automatic supply of lubricating oil is achieved through the structure of guide grooves and guide holes. Combined with sealing bolts and sealing rings, the sealing performance and effective lubrication of the lubricating oil are ensured.
It achieves efficient lubrication of bearings, has a simple structure, allows for easy addition of lubricating oil, provides good automatic lubrication, and improves the practicality of bearings.
Smart Images

Figure CN223648348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing technology, and in particular to a self-lubricating stainless steel bearing. Background Technology
[0002] A sliding bearing is a bearing that operates under sliding friction. It typically consists of a shaft and bearing bushes. Sliding bearings operate smoothly, reliably, and quietly, and are widely used in machines operating under low-speed, heavy-load conditions. There are many types of sliding bearings, which can be divided into radial (centripetal) sliding bearings and thrust sliding bearings according to the direction of the load they can withstand. The important components of a sliding bearing include the bearing bushes and bearing liners, and their materials are collectively referred to as sliding bearing materials. Commonly used sliding bearing materials include bearing alloys (also known as Babbitt metal or white alloys), wear-resistant cast iron, copper-based and aluminum-based alloys, powder metallurgy materials, plastics, and polytetrafluoroethylene (PTFE). Existing self-lubricating bearings mostly rely on the properties of the bearing material itself for journal sliding during operation. Before operation, lubricating oil is applied to the bearing bushes to form an oil film. After a period of operation, due to factors such as frictional wear, the bearing sliding effect is prone to poor, affecting the overall usability of the bearing. Therefore, we propose a self-lubricating stainless steel bearing. Utility Model Content
[0003] To address the aforementioned problems, this invention provides a self-lubricating stainless steel bearing. This invention solves the problem that existing self-lubricating bearings mostly rely on the properties of the bearing material itself for journal sliding during operation. Before operation, lubricating oil is applied to the bearing bush to form an oil film. However, after a period of operation, due to friction and other factors, the bearing's sliding effect is often poor, affecting the overall usability of the bearing.
[0004] This utility model discloses a self-lubricating stainless steel bearing, comprising a housing, an outer ring in the middle of the housing, a guide groove in the middle of the outer side of the outer ring, an inner ring in the middle of the outer ring, and a plurality of rollers arranged in a matrix between the outer ring and the inner ring. The outer ring has first guide holes on both sides of the upper end of the guide groove, and oil inlets on both sides of the upper end of the housing. An oil storage tank is provided in the housing below the oil inlets, and a second guide hole matching the first guide holes is provided at the lower end of the housing in the oil storage tank. A sealing bolt is provided in the oil inlet, and the inner wall of the oil inlet has an internal thread matching the sealing bolt.
[0005] In the above scheme, a fixing seat is provided inside the housing on one side of the outer ring, and a first sealing ring is provided inside the fixing seat.
[0006] In the above scheme, a fixing plate is provided on the side of the housing away from the fixing seat, and a second sealing ring is provided between the fixing plate and the housing.
[0007] In the above scheme, the fixing plate and the housing are fixedly connected by bolts, and the housing is provided with threaded holes that match the bolts.
[0008] In the above scheme, two mounting holes are provided on both sides of the lower end of the housing.
[0009] The advantages and beneficial effects of this utility model are as follows: This utility model provides a self-lubricating stainless steel bearing. The roller shaft is located between the outer ring and the inner ring. The outer ring and the inner ring can limit the movement of the roller shaft, allowing the roller shaft to rotate between them. The sealing bolt can seal the oil inlet hole. Lubricating oil can be added into the oil storage tank through the oil inlet hole. The lubricating oil in the oil storage tank can flow into the space between the outer ring and the inner ring through the first guide hole and the second guide hole, thereby lubricating the bearing. This type of bearing has a simple structure, good lubrication effect, and easy lubrication. The lubricating oil can automatically lubricate the bearing, effectively improving the practicality of the bearing. Attached Figure Description
[0010] 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.
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0013] Figure 3 This is a cross-sectional view of the present invention;
[0014] Figure 4 This is a schematic diagram of part A of the present invention.
[0015] In the diagram: 1. Shell; 2. Outer ring; 3. Flow channel; 4. Inner ring.
[0016] 5. Roller shaft; 6. First guide hole; 7. Oil inlet hole; 8. Oil storage tank
[0017] 9. Second guide hole; 10. Sealing bolt; 11. Fixing base; 12. First sealing ring
[0018] 13. Fixing plate; 14. Second sealing ring; 15. Bolt; 16. Threaded hole
[0019] 17. Mounting holes. Detailed Implementation
[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0021] like Figure 1-4 As shown, this utility model is a self-lubricating stainless steel bearing, including a housing 1. An outer ring 2 is located in the center of the housing 1. A guide groove 3 is formed in the center of the outer side of the outer ring 2. An inner ring 4 is located in the center of the outer ring 2. Multiple rollers 5 arranged in a matrix are arranged between the outer ring 2 and the inner ring 4. The rollers 5 are positioned between the outer ring 2 and the inner ring 4, and the outer ring 2 and the inner ring 4 can limit the movement of the rollers 5, allowing them to rotate between them. The outer ring 2 has first guide holes 6 on both sides of its upper end within the guide groove 3. The upper end of the housing 1... Both sides are provided with oil inlet holes 7. The housing 1 is provided with an oil storage tank 8 located below the oil inlet holes 7. The housing 1 is provided with a second guide hole 9 at the lower end of the oil storage tank 8, which matches the first guide hole 6. A sealing bolt 10 is provided in the oil inlet hole 7. The inner wall of the oil inlet hole 7 is provided with an internal thread that matches the sealing bolt 10. The sealing bolt 10 can seal the oil inlet hole 7. Lubricating oil can be added into the oil storage tank 8 through the oil inlet hole 7. The lubricating oil in the oil storage tank 8 can flow into the space between the outer ring 2 and the inner ring 4 through the first guide hole 6 and the second guide hole 9, thereby lubricating the bearing.
[0022] The housing 1 has a fixing seat 11 located on one side of the outer ring 2. The fixing seat 11 has a first sealing ring 12, which can seal the contact surface between the outer ring 2 and the housing 1.
[0023] The housing 1 is provided with a fixing plate 13 on the side away from the fixing seat 11. A second sealing ring 14 is provided between the fixing plate 13 and the housing 1. The second sealing ring 14 can seal the contact surface between the fixing plate 13 and the housing 1.
[0024] The fixing plate 13 is fixedly connected to the housing 1 by bolts 15, and the housing 1 is provided with threaded holes 16 that match the bolts 15.
[0025] The housing 1 has two mounting holes 17 on both sides of its lower end, through which the bearing can be fixedly installed.
[0026] Specifically, in this utility model, the roller shaft 5 is located between the outer ring 2 and the inner ring 4. The outer ring 2 and the inner ring 4 can limit the roller shaft 5, so that the outer ring 2 and the inner ring 4 cooperate with each other, allowing the roller shaft 5 to rotate between the outer ring 2 and the inner ring 4. The sealing bolt 10 can seal the oil inlet hole 7. Lubricating oil can be added into the oil storage tank 8 through the oil inlet hole 7. The lubricating oil in the oil storage tank 8 can flow into the space between the outer ring 2 and the inner ring 4 through the first guide hole 6 and the second guide hole 9, thereby lubricating the bearing.
[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 self-lubricating stainless steel bearing, comprising a housing (1), characterized in that, The housing (1) has an outer ring (2) in the middle of its inner part. A guide groove (3) is provided in the middle of the outer side of the outer ring (2). An inner ring (4) is provided in the middle of the inner part of the outer ring (2). A plurality of rollers (5) are arranged in a matrix between the outer ring (2) and the inner ring (4). The outer ring (2) is provided with first guide holes (6) on both sides of the upper end of the guide groove (3). The housing (1) is provided with oil inlet holes (7) on both sides of the upper end. An oil storage tank (8) is provided in the housing (1) below the oil inlet hole (7). The housing (1) is provided with a second guide hole (9) matching the first guide hole (6) at the lower end of the oil storage tank (8). A sealing bolt (10) is provided in the oil inlet hole (7). The inner wall of the oil inlet hole (7) is provided with an internal thread matching the sealing bolt (10).
2. The self-lubricating stainless steel bearing according to claim 1, characterized in that, The housing (1) is provided with a fixing seat (11) on one side of the outer ring (2), and the fixing seat (11) is provided with a first sealing ring (12).
3. The self-lubricating stainless steel bearing according to claim 2, characterized in that, A fixing plate (13) is provided on the side of the housing (1) away from the fixing seat (11), and a second sealing ring (14) is provided between the fixing plate (13) and the housing (1).
4. A self-lubricating stainless steel bearing according to claim 3, characterized in that, The fixing plate (13) is fixedly connected to the housing (1) by bolts (15), and the housing (1) has threaded holes (16) that match the bolts (15).
5. A self-lubricating stainless steel bearing according to claim 1, characterized in that, The housing (1) has two mounting holes (17) on both sides of its lower end.