Single-row ball bearing
By employing a combination ring and snap-fit design in single-row ball bearings, the problem of difficult cage removal is solved, achieving stable cage connection and convenient separation, simplifying the ball replacement process, and extending the bearing's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINCHANG MINGYU BEARING CO LTD
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-21
AI Technical Summary
When replacing balls in existing ball bearings, removing the cage is difficult, especially the riveting between the two halves of the cage, which makes separation difficult and affects the maintenance and lifespan of the bearing.
A single-row ball bearing was designed, employing a cage with two combined rings. Through the structure of the snap-fit element and the snap-fit wing, the snap-fit element can stably connect the combined rings and can be easily separated when needed, simplifying the ball replacement process.
It achieves stable connection and convenient separation of the cage, simplifies the ball replacement process, and extends the service life of the bearing.
Smart Images

Figure CN224533264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearings, and more specifically, to a single-row ball bearing. Background Technology
[0002] A ball bearing is a mechanical component that uses rolling elements to reduce friction and support rotational motion. Its core function is to replace sliding friction with rolling friction, thereby significantly reducing energy loss and improving mechanical efficiency.
[0003] A ball bearing consists of an inner ring, an outer ring, and a number of balls. All the balls are located between the inner and outer rings. The ball bearing also has a cage, which maintains the ball spacing, so that the load is evenly distributed among the balls, avoiding local stress concentration and thus extending the bearing life. When the balls need to be replaced, the inner and outer rings are usually separated. At this time, the cage needs to be removed first. However, the two halves of the cage are riveted together, making subsequent removal difficult.
[0004] Therefore, a new solution is needed to address this problem. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a single-row ball bearing.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a single-row ball bearing, including an inner ring and an outer ring, wherein a cage and a plurality of balls are provided between the inner ring and the outer ring, the cage includes two combined rings, each of the two combined rings having a mounting hole and a snap-fit hole, the mounting hole and the snap-fit hole being alternately arranged on the combined rings, a snap-fit member being slidably connected in the mounting hole, one end of the snap-fit member having a deformation groove, and snap-fit wings located on both sides of the deformation groove being fixedly connected to the snap-fit member, the snap-fit member being able to snap into the snap-fit hole on the other combined ring by deforming toward the deformation groove.
[0007] The present invention is further configured such that: the diameter of the mounting hole is smaller than the diameter of the snap-fit hole, the two snap-fit wings are always exposed outside the mounting hole, and a receiving hole communicating with the mounting hole is also provided on one side of the combined ring, the receiving hole being used to jointly accommodate the two snap-fit wings.
[0008] The present invention is further configured such that one end of the snap-fit component with the deformation groove is arc-shaped.
[0009] The present invention is further configured such that: two levers are fixedly connected to the snap-fit component, and the sides of the two levers facing each other are flush with the inner wall of the deformation groove.
[0010] The present invention is further configured such that: a positioning groove is provided on one of the combined rings, and a positioning block is fixedly connected to the other combined ring; when the positioning block is engaged in the positioning groove, the mounting hole on the combined ring is aligned with the snap-fit hole on the other combined ring.
[0011] The present invention is further configured such that the positioning groove is connected to the outer peripheral wall of the combined ring.
[0012] The present invention is further configured such that arc-shaped grooves are provided on both the side walls of the outer ring and the inner ring.
[0013] In summary, this utility model has the following beneficial effects:
[0014] When the snap-fit component is inserted into the snap-fit hole, the snap-fit wing abuts against one side of the combined ring. Simultaneously, under the action of the limiting block, the snap-fit component will not disengage from the mounting hole, thus ensuring the stability between the two combined rings. When it is necessary to separate the two combined rings, simply deform the two snap-fit wing towards the deformation groove, causing the two snap-fit wing to retract into the snap-fit hole. At this point, the snap-fit component can be slid to disengage from the snap-fit hole. After all snap-fit components are disengaged, the two combined rings are separated. Then, all the balls can be moved to the same side of the inner ring, facilitating the separation of the inner and outer rings. This design facilitates the replacement of the balls in the bearing, thereby ensuring the overall service life of the bearing. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the present invention;
[0017] Figure 3 for Figure 2 Enlarged view of section A;
[0018] Figure 4 for Figure 2 Enlarged view of section B;
[0019] Figure 5 This is a schematic diagram of the cage structure in this utility model.
[0020] In the diagram: 1. Inner ring; 2. Outer ring; 3. Cage; 4. Ball bearing; 5. Combination ring; 6. Mounting hole; 7. Snap-fit hole; 8. Snap-fit piece; 9. Deformation groove; 10. Snap-fit wing; 11. Dial plate; 12. Positioning groove; 13. Positioning block; 14. Arc groove; 15. Receiving hole. Detailed Implementation
[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] Single-row ball bearings, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the device includes an inner ring 1 and an outer ring 2. A retainer 3 and several balls 4 are provided between the inner ring 1 and the outer ring 2. The retainer 3 includes two combined rings 5, which are interlocked to form the retainer 3. All balls 4 are limited between the two combined rings 5. Each of the two combined rings 5 has a mounting hole 6 and a snap-fit hole 7, which are alternately arranged on the combined rings 5 and located between two adjacent balls 4. A snap-fit element 8 is slidably connected in the mounting hole 6. By inserting the snap-fit element 8 into the snap-fit hole 7, the two combined rings 5 can be prevented from separating. One end of the snap-fit element 8 has a deformation groove 9, and snap-fit wings 10 located on both sides of the deformation groove 9 are fixedly connected to the snap-fit element 8. The snap-fit element 8 can be snapped into the snap-fit hole 7 on the other combined ring 5 by deforming towards the deformation groove 9. A limit block is provided at the end of the snap-fit element 8 facing away from the snap-fit wings 10. A limiting groove communicating with the mounting slot is provided on the side. When the snap-fit 8 is snapped into the snap-fit hole 7, the snap-fit wing 10 abuts against one side of the combined ring 5. At the same time, under the action of the limiting block, the snap-fit 8 will not come out of the mounting hole 6, thus ensuring the stability between the two combined rings 5. When it is necessary to separate the two combined rings 5, simply deform the two snap-fit wings 10 toward the deformation groove 9, so that the two snap-fit wings 10 retract into the snap-fit hole 7. At this time, people can slide the snap-fit 8 to disengage from the snap-fit hole 7. After all the snap-fit 8s are disengaged, the two combined rings 5 are separated. At this time, people can move all the balls 4 to the same side of the inner ring 1 to facilitate the separation of the inner ring 1 and the outer ring 2. The snap-fit hole 7 and the mounting hole 6 are both provided on the two combined rings 5. In this way, during the rotation of the bearing, it is impossible to apply force from one side of the cage 3 to separate the cage 3, thus ensuring the stability of the cage 3.
[0023] like Figure 3 , Figure 4 and Figure 5As shown, the diameter of the mounting hole 6 is smaller than the diameter of the snap-fit hole 7. The two snap-fit wings 10 are always exposed outside the mounting hole 6. A receiving hole 15 communicating with the mounting hole 6 is also provided on one side of the combined ring 5. The receiving hole 15 is used to jointly accommodate the two snap-fit wings 10. The receiving hole 15 and the mounting hole 6 are coaxially arranged. No matter how the two snap-fit wings 10 deform into the deformation groove 9, they cannot come out of the mounting hole 6, which ensures the stability of the snap-fit component 8 in the mounting hole 6. The end of the snap-fit component 8 with the deformation groove 9 is arc-shaped. When the outer edge of the snap-fit hole 7 abuts against the arc-shaped end of the snap-fit component 8, the two snap-fit wings 10 can directly deform into the groove 9 by the pushing force applied to the snap-fit component 8. The groove 9 is deformed to facilitate the snap-fit 8 into the snap-fit hole 7. A positioning groove 12 is provided on one combination ring 5, and a positioning block 13 is fixedly connected to the other combination ring 5. When the positioning block 13 is snapped into the positioning groove 12, the mounting hole 6 on the combination ring 5 is aligned with the snap-fit hole 7 on the other combination ring 5. The positioning groove 12 and the positioning block 13 facilitate the alignment of the two combination rings 5. Furthermore, by providing a receiving hole 15, the receiving hole 15 can fully accommodate the positions of the two snap-fit wings 10, thereby allowing the two combination rings 5 to fit together. The positioning groove 12 is connected to the outer peripheral wall of the combination ring 5, which makes it easy for people to observe the position of the positioning groove 12.
[0024] like Figure 3 and Figure 4 As shown, two lever plates 11 are also fixedly connected to the snap-fit 8. The sides of the two lever plates 11 facing each other are flush with the inner wall of the deformation groove 9. By pressing the two lever plates 11, the two snap-fit wings 10 can deform towards the deformation groove 9. This arrangement makes it easy for people to detach the snap-fit 8 from the snap-fit hole 7. Arc-shaped grooves 14 are provided on both sides of the outer ring 2 and the inner ring 1. The arc-shaped grooves 14 on the outer ring 2 and the inner ring 1 are set one-to-one. The line connecting the two arc-shaped grooves 14 passes through the center point of the bearing. The setting of the arc-shaped grooves 14 increases the space that people can operate between the inner ring 1 and the outer ring 2, making it easier for people to detach the snap-fit 8 from the snap-fit hole 7.
[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A single-row ball bearing, comprising an inner ring (1) and an outer ring (2), wherein a cage (3) and a plurality of balls (4) are disposed between the inner ring (1) and the outer ring (2), characterized in that: The retainer (3) includes two combined rings (5), each of which has a mounting hole (6) and a snap-fit hole (7). The mounting hole (6) and the snap-fit hole (7) are alternately arranged on the combined rings (5). A snap-fit member (8) is slidably connected in the mounting hole (6). One end of the snap-fit member (8) has a deformation groove (9). The snap-fit member (8) is fixedly connected with snap-fit wings (10) located on both sides of the deformation groove (9). The snap-fit member (8) can be snapped into the snap-fit hole (7) on the other combined ring (5) by deforming towards the deformation groove (9).
2. The single-row ball bearing according to claim 1, characterized in that: The diameter of the mounting hole (6) is smaller than the diameter of the snap-fit hole (7). The two snap-fit wings (10) are always exposed outside the mounting hole (6). A receiving hole (15) communicating with the mounting hole (6) is also provided on one side of the combined ring (5). The receiving hole (15) is used to jointly accommodate the two snap-fit wings (10).
3. The single-row ball bearing according to claim 1, characterized in that: The end of the snap-fit component (8) with the deformation groove (9) is arc-shaped.
4. The single-row ball bearing according to claim 1, characterized in that: Two levers (11) are also fixedly connected to the snap-fit component (8), and the sides of the two levers (11) facing each other are flush with the inner wall of the deformation groove (9).
5. The single-row ball bearing according to claim 2, characterized in that: One of the combined rings (5) has a positioning groove (12), and another combined ring (5) has a positioning block (13) fixedly connected to it. When the positioning block (13) is inserted into the positioning groove (12), the mounting hole (6) on the combined ring (5) is aligned with the snap-fit hole (7) on the other combined ring (5).
6. The single-row ball bearing according to claim 5, characterized in that: The positioning groove (12) is connected to the outer peripheral wall of the combined ring (5).
7. The single-row ball bearing according to claim 1, characterized in that: Arc-shaped grooves (14) are provided on both sides of the outer ring (2) and the inner ring (1).