Portable bearing capable of being quickly disassembled and assembled
By combining the insert rod and the limiting groove, the problem of time-consuming and labor-intensive disassembly of existing bearings is solved, achieving the effect of quick disassembly and assembly of the cage and enhancing the installation stability of the bearing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO LONGYIN BEARING CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-19
AI Technical Summary
When replacing the balls in existing bearings, multiple small bolts need to be removed one by one, which makes the disassembly process time-consuming and labor-intensive, and prone to problems such as stripping or loss of bolts.
The cage is assembled and disassembled by a combination of insert rod and limiting groove. The insertion of the insert rod and the limiting groove and the elastic deformation of the elastic plate enable quick assembly and disassembly of the cage, avoiding the cumbersome operation of traditional bolt connection.
It enables quick assembly and disassembly of the cage without tools, shortening maintenance time and enhancing the installation stability and reliability of the cage.
Smart Images

Figure CN224260718U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bearing technology, and more specifically, to a convenient and quick-assembly bearing. Background Technology
[0002] Bearings are mechanical parts used to support rotating shafts or other moving components, reduce friction, and ensure the normal operation of equipment. They are widely used in the automotive, machinery manufacturing, and aerospace industries. Based on the frictional properties of the moving elements, bearings can be divided into rolling bearings and sliding bearings. Rolling bearings are widely used due to their low frictional resistance, flexible starting, and high efficiency. A rolling bearing generally consists of an inner ring, an outer ring, rolling elements (such as balls and rollers), and a cage.
[0003] Existing bearings typically use cages to retain the balls, which are usually connected by bolts. When the balls inside the bearing wear out and need to be replaced, maintenance personnel must use a screwdriver to unscrew each bolt one by one. Due to the large number and small size of the bolts, the disassembly process is not only time-consuming and labor-intensive, but also prone to stripping or losing bolts. If a stripped bolt cannot be removed, more complex tools (such as a broken thread extractor) may be required, which is time-consuming and labor-intensive. Utility Model Content
[0004] To address the aforementioned issues, this application provides a convenient and quick bearing assembly / disassembly method.
[0005] The present application provides a convenient and quick-assembly bearing using the following technical solution:
[0006] A convenient and quick-release bearing includes an outer ring, an inner ring inside the outer ring, an upper cage between the outer ring and the inner ring, a lower cage below the upper cage, a plurality of balls between the upper cage and the lower cage, and a mounting assembly between the upper cage and the lower cage.
[0007] The mounting components are provided in multiple sets. Each set of mounting components includes a plug rod, which is fixedly connected to the upper retainer. One end of the lower retainer is fixedly connected to a fixing block. The fixing block has a limit groove inside, and the plug rod is inserted into the limit groove.
[0008] Through the above technical solution, the installation components can be quickly assembled and disassembled without tools, avoiding the tedious operation of disassembling traditional bolted connections with screwdrivers, greatly shortening maintenance time, and solving the problem of time-consuming and labor-intensive disassembly caused by a large number of small bolts.
[0009] Furthermore, each insertion rod has a groove at both ends, and an elastic piece is fixedly connected to one end of each groove.
[0010] Furthermore, each elastic piece is fixedly connected to a locking block on its outer side, and each limiting groove has a locking slot at both ends.
[0011] Furthermore, each pair of card blocks engages with its corresponding card slot.
[0012] Furthermore, an auxiliary rod is fixedly connected to the bottom of each insertion rod, and a slot is provided at the bottom of each limiting groove.
[0013] Furthermore, each auxiliary rod is inserted into its corresponding slot.
[0014] Through the above technical solution, the close cooperation between the auxiliary rod and the slot plays a role in auxiliary fixation.
[0015] Furthermore, two levers are fixedly connected to the top of the upper retainer.
[0016] Furthermore, both the inner wall of the outer ring and the outer wall of the inner ring are provided with raceways, and the outer walls of multiple balls are in rolling connection with the raceways.
[0017] In summary, this application includes at least one of the following beneficial technical effects:
[0018] (1) By setting the installation components, this utility model achieves the effect of quick disassembly and assembly of the retainer without tools, avoiding the tedious operation of disassembly with a screwdriver required for traditional bolt connections, greatly shortening maintenance time, and solving the problem of time-consuming and labor-intensive disassembly caused by a large number of small bolts.
[0019] (2) By setting up auxiliary rods and slots, this utility model achieves the effect of assisting in fixing the upper and lower retainers, thereby enhancing the stability and reliability of retainer installation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the present invention;
[0022] Figure 3 This is a schematic diagram of the connection structure between the upper and lower retainers of this utility model;
[0023] Figure 4 This is a schematic diagram of the connection structure between the insertion rod and the fixing block of this utility model;
[0024] Figure 5 This is a partial plan view of the present invention.
[0025] Explanation of reference numerals in the attached diagram: 1. Outer ring; 2. Inner ring; 3. Upper cage; 4. Raceway; 5. Ball; 6. Pull rod; 7. Lower cage; 8. Insert rod; 9. Fixing block; 10. Elastic plate; 11. Groove; 12. Locking block; 13. Auxiliary rod; 14. Slot; 15. Locking groove; 16. Limiting groove. Detailed Implementation
[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0027] Reference Figures 1-5 A convenient and quick-release bearing includes an outer ring 1, an inner ring 2 on the inner side of the outer ring 1, an upper cage 3 between the outer ring 1 and the inner ring 2, a lower cage 7 below the upper cage 3, a plurality of balls 5 between the upper cage 3 and the lower cage 7, and an installation assembly between the upper cage 3 and the lower cage 7.
[0028] The mounting components are provided in multiple sets. Each set of mounting components includes a plug rod 8, which is fixedly connected to the upper retainer 3. One end of the lower retainer 7 is fixedly connected to a fixing block 9. A limiting groove 16 is opened inside the fixing block 9, and the plug rod 8 is inserted into the limiting groove 16.
[0029] When installing the ball bearings 5, first place the inner ring 2 coaxially inside the outer ring 1 so that the raceways 4 of the two are aligned; then, insert the ball bearings 5 one by one into the gap between the inner ring 2 and the outer ring 1 along the circumferential direction of the raceway 4.
[0030] Then, align the upper retainer 3 with the lower retainer 7. At this time, move the ball 5 into the pocket formed by the upper retainer 3 and the lower retainer 7, so that the insertion rod 8 is aligned with the limiting groove 16. Apply force to the upper retainer 3 and the lower retainer 7. The inner wall of the limiting groove 16 presses the locking blocks 12 at both ends of the insertion rod 8, forcing the elastic plate 10 to bend into the groove 11 and undergo elastic deformation, so that the locking block 12 retracts so that the insertion rod 8 can be inserted smoothly. When the insertion rod 8 is fully in place, the locking block 12 is aligned with the locking groove 15. The elastic plate 10 rebounds and pushes the locking block 12 into the locking groove 15 to achieve locking.
[0031] When disassembly is required, pull the lever 6 at the top of the upper retainer 3, which compresses the elastic plates 10 in the grooves 11 at both ends of the insert rod 8, causing the locking blocks 12 to disengage from the locking slots 15 at both ends of the limiting groove 16. After the locking limit is lost, the upper retainer 3 can be separated from the lower retainer 7, thereby quickly removing the ball bearing 5 for easy replacement, cleaning, or maintenance.
[0032] Reference Figures 1-5Each insertion rod 8 has a groove 11 at both ends, and an elastic piece 10 is fixedly connected to one end of each groove 11. A locking block 12 is fixedly connected to the outside of each elastic piece 10. Each limiting groove 16 has a locking slot 15 at both ends, and each pair of locking blocks 12 are respectively engaged with the corresponding locking slot 15.
[0033] Reference Figures 4-5 Each insertion rod 8 has an auxiliary rod 13 fixedly connected to its bottom, and each limiting groove 16 has a slot 14 at its bottom. Each auxiliary rod 13 is inserted into the corresponding slot 14.
[0034] Reference Figures 1-2 The top of the upper retainer 3 is fixedly connected to two pull rods 6. The inner wall of the outer ring 1 and the outer wall of the inner ring 2 are both provided with raceways 4, and the outer walls of multiple balls 5 are all in rolling connection with the raceways 4.
[0035] Working principle: During installation, first place the inner ring 2 coaxially inside the outer ring 1, aligning their raceways 4 to form an annular gap. Then, insert the balls 5 one by one along the circumference of the raceway 4, ensuring the balls 5 are evenly distributed between the inner ring 2 and the outer ring 1. Next, align the upper cage 3 with the lower cage 7, so that the balls 5 are correspondingly inserted into the pockets formed by the upper cage 3 and the lower cage 7. At the same time, align the insert rod 8 of the upper cage 3 with the limiting groove 16 of the fixing block 9 of the lower cage 7. When force is applied to the upper cage 3 and the lower cage 7, the inner wall of the limiting groove 16 presses the locking blocks 12 at both ends of the insert rod 8, forcing the elastic plate 10 to bend and deform into the groove 11. The locking blocks 12 retract so that the insert rod 8 can be smoothly inserted into the limiting groove 16. When the insert rod 8 is fully inserted, the locking blocks 12 are aligned with the locking slots 15 at both ends of the limiting groove 16. The elastic plate 10 rebounds and pushes the locking blocks 12 into the locking slots 15, thus locking the upper cage 3 and the lower cage 7. At this time, the ball 5 is limited between the pocket and the raceway 4 and can roll freely.
[0036] During disassembly, pull the lever 6 at the top of the upper retainer 3 to move the insert rod 8. The elastic plate 10 is compressed by force, and the locking block 12 disengages from the slot 15, releasing the lock. This allows the upper retainer 3 to be separated from the lower retainer 7, and the ball bearing 5 to be quickly removed for cleaning, replacement, or maintenance.
[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A convenient and quick-assembly bearing, characterized in that, include: An outer ring (1) is provided on the inner side of the outer ring (1), an inner ring (2) is provided on the inner side of the outer ring (1), an upper retainer (3) is provided between the outer ring (1) and the inner ring (2), a lower retainer (7) is provided below the upper retainer (3), a plurality of balls (5) are provided between the upper retainer (3) and the lower retainer (7), and an installation assembly is provided between the upper retainer (3) and the lower retainer (7). The mounting assembly is provided in multiple sets, each set of mounting assembly includes a plug rod (8), the plug rod (8) is fixedly connected to the upper retainer (3), and a fixing block (9) is fixedly connected to one end of the lower retainer (7). A limiting groove (16) is opened inside the fixing block (9), and the plug rod (8) is inserted into the limiting groove (16).
2. The convenient and quick-assembly bearing according to claim 1, characterized in that: Each of the inserts (8) has a groove (11) at both ends, and an elastic piece (10) is fixedly connected to one end of each groove (11).
3. The convenient and quick-assembly bearing according to claim 2, characterized in that: Each of the elastic pieces (10) is fixedly connected to a locking block (12) on its outer side, and each of the limiting grooves (16) has a locking groove (15) at both ends.
4. The convenient and quick-assembly bearing according to claim 3, characterized in that: Each pair of the card blocks (12) is engaged with the corresponding card slot (15).
5. A convenient and quick-assembly bearing according to claim 1, characterized in that: Each of the inserts (8) has an auxiliary rod (13) fixedly connected to its bottom, and each of the limiting grooves (16) has a slot (14) at its bottom.
6. A convenient and quick-assembly bearing according to claim 5, characterized in that: Each of the auxiliary rods (13) is inserted into the corresponding slot (14).
7. A convenient and quick-assembly bearing according to claim 1, characterized in that: The top of the upper retainer (3) is fixedly connected to two levers (6).
8. A convenient and quick-assembly bearing according to claim 1, characterized in that: The inner wall of the outer ring (1) and the outer wall of the inner ring (2) are both provided with raceways (4), and the outer walls of the multiple balls (5) are all in rolling connection with the raceways (4).