Combined rear bearing outer cover
By combining the sealing components of the rear bearing cover with the bearing assembly design, the problem of insufficient dust and water resistance of existing covers is solved, achieving good sealing effect and structural stability, extending the service life of the bearing and reducing equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
The existing rear bearing cover is insufficient in terms of dust and water protection. External impurities can easily enter the bearing cavity, and bearing grease is prone to leakage, leading to accelerated wear. Existing improvement methods are costly or require redesigning the equipment.
Design a combined rear bearing outer cover, including a sealing component and a bearing component. The sealing component and the bearing component are connected by a connecting component. The sealing component consists of an outer cover body and a sealing gasket. There are fixing bolts on the outside of the outer cover body. The bearing component has an annular fixing protrusion, forming a tight protective barrier.
It effectively blocks the intrusion of external dust, moisture and impurities, prevents grease leakage, improves sealing performance and structural stability, extends bearing life, and reduces equipment maintenance frequency and cost.
Smart Images

Figure CN224214585U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing equipment, and specifically relates to a combined rear bearing outer cover. Background Technology
[0002] The rear bearing cover is a crucial component in mechanical transmission systems, protecting the bearing and maintaining normal equipment operation. Currently, some rear bearing covers have room for improvement in dust and water resistance. Due to insufficient consideration of environmental media isolation in their structural design, external dust, moisture, and other impurities can easily enter the bearing cavity through the gap between the cover and the shaft or equipment housing. Simultaneously, bearing grease can easily leak from these gaps, leading to poor bearing lubrication, accelerated wear, and ultimately shortened equipment lifespan. Conventional solutions include adding sealant or wrapping sealing tape to fill the gaps during assembly, or replacing the cover with one featuring a sealing groove and adding a sealing ring during later equipment maintenance. However, the fit and durability of additional sealant or sealing tape are significantly affected by material properties and installation processes, and long-term use may result in aging and cracking, leading to seal failure. Replacing with a cover featuring a sealing groove requires redesigning the cover structure and adjusting installation dimensions, potentially increasing equipment modification costs and downtime. Furthermore, the compatibility of the new structure with existing equipment components needs further verification. Therefore, a new structure is needed to address these technical problems. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a combined rear bearing outer cover to solve the problems mentioned in the background art.
[0004] This utility model is achieved through the following technical solution: a combined rear bearing outer cover, comprising: a sealing assembly and a bearing assembly, wherein the sealing assembly is connected to the bearing assembly via a connecting assembly, the sealing assembly is mounted on the rear surface of the bearing assembly via the connecting assembly, the sealing assembly includes an outer cover body for sealing installation, a sealing gasket is mounted on the rear surface of the outer cover body, and multiple fixing bolts are uniformly installed through the outer surface of the outer cover body, the bearing assembly includes a mounting cover for mounting the bearing body, and the outer surface of the mounting cover has a ring-shaped structure with an integrally formed fixing protrusion.
[0005] In a preferred embodiment, the outer cover body has a disc structure, and a convex ring is integrally formed at the center of the inner surface of the outer cover body. The convex ring is recessed inward to form a groove, and a circular through hole is provided at the center of the bottom of the groove. The central axis of the circular through hole is collinear with the central axis of the outer cover body.
[0006] In a preferred embodiment, a disc-shaped sealing gasket is installed on the inner surface of the outer cover body. The structure of the sealing gasket matches the structure of the outer cover body. The surface of the sealing gasket has multiple mounting holes evenly distributed in a ring structure. During use, the sealing assembly formed by the outer cover body and the sealing gasket can effectively prevent external dust, moisture, and impurities from entering the bearing, while preventing bearing grease leakage and ensuring that the bearing is in a good lubrication and clean environment. Multiple fixing bolts evenly distributed on the outer side of the outer cover body are connected to the bearing assembly through a connecting component, which not only ensures the installation reliability of the sealing assembly but also enhances the structural stability.
[0007] In a preferred embodiment, the number and position of the mounting holes match the number and position of the fixing bolts. The connecting assembly includes a first connecting seat and a second connecting seat. The first connecting seat is connected to the second connecting seat. The first connecting seat is installed at the center of the surface of the outer cover body away from the sealing gasket.
[0008] In a preferred embodiment, a connecting seat two is installed at the center of the inner surface of the mounting cover. The mounting cover is connected to the outer cover body through connecting seat one and connecting seat two. The diameter of the mounting cover is smaller than the diameter of the outer cover body.
[0009] In a preferred embodiment, the outer surface of the mounting cover has three uniformly integrally formed annular protrusions. A fixing hole is provided at the center of the surface of each fixing protrusion. A mounting block is integrally formed on the side of the mounting cover away from the connecting seat. In use, the structural design of the mounting cover and fixing protrusions provides a stable and reliable mounting foundation for the bearing body. The annular fixing protrusions can enhance the structural strength of the mounting cover, ensure the stability of the bearing during operation, and reduce wear and vibration caused by loose installation. The sealing component works in conjunction with the bearing component to form a tight protective barrier around the bearing, effectively isolating external dust, moisture and impurities from intrusion, and enhancing the overall reliability and durability of the equipment.
[0010] In a preferred embodiment, the center of the surface of the mounting block is designed with a through hole, and a bearing body is installed inside the mounting block. The central axis of the bearing body is collinear with the central axis of the circular through hole.
[0011] After adopting the above technical solution, the beneficial effects of this utility model are as follows: 1. By setting a sealing component, the sealing component is connected to the bearing component through a connecting component. The sealing component includes an outer cover body for sealing installation. A sealing gasket is installed on the rear surface of the outer cover body. Multiple fixing bolts are evenly installed through the outer surface of the outer cover body. In use, the sealing component formed by the outer cover body and the sealing gasket can effectively prevent external dust, moisture, and impurities from entering the bearing. At the same time, it prevents bearing grease leakage and ensures that the bearing is in a good lubrication and clean environment. The multiple fixing bolts evenly distributed on the outer side of the outer cover body are connected to the bearing component through the connecting component, which not only ensures the installation reliability of the sealing component, but also enhances the structural stability.
[0012] 2. By setting up a bearing assembly, the bearing assembly includes a mounting cover for installing the bearing body. The outer surface of the mounting cover has an integrally formed annular structure with a fixing protrusion. During use, the structural design of the mounting cover and the fixing protrusion provides a stable and reliable mounting base for the bearing body. The annular fixing protrusion can enhance the structural strength of the mounting cover, ensuring the stability of the bearing during operation and reducing wear and vibration caused by loose installation. The sealing component works in conjunction with the bearing assembly to form a tight protective barrier around the bearing, effectively isolating external dust, moisture and impurities from intrusion, while preventing bearing grease leakage and ensuring a good lubrication environment for the bearing. The synergistic effect of the two not only improves the sealing performance and structural stability of the rear bearing cover, but also extends the service life of the bearing, reduces the frequency of equipment maintenance and operating costs, and enhances the overall reliability and durability of the equipment. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of a combined rear bearing outer cover according to the present invention.
[0015] Figure 2 This is a schematic diagram of the side structure of a combined rear bearing outer cover according to the present invention.
[0016] Figure 3 This is a schematic diagram of a sealing gasket for a combined rear bearing outer cover according to this utility model.
[0017] Figure 4 This is a schematic diagram of a bearing assembly for a combined rear bearing outer cover according to the present invention.
[0018] Figure 5 This is a schematic diagram of the rear surface structure of a combined rear bearing outer cover according to the present invention.
[0019] In the diagram, 100 is the outer cover body, 101 is the circular through hole, 110 is the raised ring, 111 is the groove, 120 is the sealing gasket, 121 is the mounting hole, and 130 is the fixing bolt.
[0020] 200-Connector 1, 210-Connector 2;
[0021] 300-Mounting cover, 310-Fixing protrusion, 311-Fixing hole, 320-Mounting block, 330-Bearing body. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1 to 5 As the first embodiment of this utility model: a combined rear bearing outer cover, including: a sealing assembly and a bearing assembly, the sealing assembly is connected to the bearing assembly through a connecting assembly, the sealing assembly is installed on the rear surface of the bearing assembly through the connecting assembly, the sealing assembly includes an outer cover body 100 for sealing installation, a sealing gasket 120 is installed on the rear surface of the outer cover body 100, and a plurality of fixing bolts 130 are uniformly installed through the outer surface of the outer cover body 100, the bearing assembly includes a mounting cover 300 for mounting the bearing body 330, and a fixing protrusion 310 is integrally formed on the outer surface of the mounting cover 300 in an annular structure;
[0024] The outer cover body 100 has a disc structure. A convex ring 110 is integrally formed at the center of the inner surface of the outer cover body 100. The convex ring 110 is recessed inward to form a groove 111. A circular through hole 101 is provided at the center of the bottom of the groove 111. The central axis of the circular through hole 101 is collinear with the central axis of the outer cover body 100.
[0025] A disc-shaped sealing gasket 120 is installed on the inner surface of the outer cover body 100. The structure of the sealing gasket 120 matches the structure of the outer cover body 100. The surface of the sealing gasket 120 has a plurality of mounting holes 121 evenly formed in a ring structure.
[0026] The number and position of mounting holes 121 match the number and position of fixing bolts 130. The connecting assembly includes a first connecting seat 200 and a second connecting seat 210. The first connecting seat 200 is connected to the second connecting seat 210. The first connecting seat 200 and the second connecting seat 210 are connected. The first connecting seat 200 is installed at the center of the surface of the outer cover body 100 away from the sealing gasket 120.
[0027] In use, the user first connects the outer cover body 100 to the external equipment using the fixing bolts 130. When the outer cover body 100 is connected to the external equipment, the sealing gasket 120 on the inner surface of the outer cover body 100 will play a sealing role. At this time, the sealing assembly formed by the outer cover body 100 and the sealing gasket 120 can effectively prevent external dust, moisture and impurities from entering the bearing, while preventing bearing grease leakage and ensuring that the bearing is in a good lubrication and clean environment. The multiple fixing bolts 130 evenly distributed on the outer side of the outer cover body 100 are connected to the bearing assembly through the connecting assembly, which not only ensures the installation reliability of the sealing assembly, but also enhances the structural stability.
[0028] Please see Figures 1 to 5 As a second embodiment of the present utility model: based on the description in the above embodiments, further, a connecting seat 210 is installed at the center of the inner surface of the mounting cover 300, and the mounting cover 300 is connected to the outer cover body 100 through the connecting seat 200 and the connecting seat 210. The diameter of the mounting cover 300 is smaller than the diameter of the outer cover body 100.
[0029] The outer surface of the mounting cover 300 has three fixed protrusions 310 uniformly formed in a ring structure. A fixed hole 311 is provided at the center of the surface of the fixed protrusion 310. The mounting block 320 is integrally formed on the side surface of the mounting cover 300 away from the connecting seat 210.
[0030] The center of the surface of the mounting block 320 is designed with a through hole. The bearing body 330 is installed inside the mounting block 320. The central axis of the bearing body 330 is collinear with the central axis of the circular through hole 101.
[0031] During use, the structural design of the mounting cover 300 and the fixing protrusion 310 provides a stable and reliable mounting base for the bearing body 330. The annular fixing protrusion 310 can enhance the structural strength of the mounting cover 300, ensuring that the bearing remains stable during operation and reducing wear and vibration caused by loose installation. The sealing component and the bearing component work together to form a tight protective barrier around the bearing, effectively isolating external dust, moisture and impurities from intrusion, while preventing bearing grease leakage and ensuring a good lubrication environment for the bearing. The synergistic effect of the two not only improves the sealing performance and structural stability of the rear bearing cover, but also extends the service life of the bearing, reduces the frequency of equipment maintenance and operating costs, and enhances the overall reliability and durability of the equipment.
[0032] 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 combined rear bearing outer cover, comprising: A sealing assembly and a bearing assembly, characterized in that the sealing assembly is connected to the bearing assembly via a connecting assembly, the sealing assembly is mounted on the rear surface of the bearing assembly via the connecting assembly, the sealing assembly includes an outer cover body (100) for sealing installation, a sealing gasket (120) is mounted on the rear surface of the outer cover body (100), and a plurality of fixing bolts (130) are uniformly installed through the outer surface of the outer cover body (100), and the bearing assembly includes a mounting cover (300) for mounting the bearing body (330), the outer surface of the mounting cover (300) having a fixed protrusion (310) integrally formed in an annular structure.
2. The combined rear bearing outer cover as described in claim 1, characterized in that: The outer cover body (100) has a disc structure. A convex ring (110) is integrally formed at the center of the inner surface of the outer cover body (100). The convex ring (110) is recessed inward to form a groove (111). A circular through hole (101) is provided at the center of the bottom of the groove (111). The central axis of the circular through hole (101) is collinear with the central axis of the outer cover body (100).
3. The combined rear bearing outer cover as described in claim 2, characterized in that: The inner surface of the outer cover body (100) is fitted with a sealing gasket (120) in the shape of a disc. The structure of the sealing gasket (120) matches the structure of the outer cover body (100). The surface of the sealing gasket (120) is uniformly provided with a plurality of mounting holes (121) in the shape of a ring.
4. The combined rear bearing outer cover as described in claim 3, characterized in that: The number and position of the mounting holes (121) match the number and position of the fixing bolts (130). The connecting assembly includes a first connecting seat (200) and a second connecting seat (210). The first connecting seat (200) and the second connecting seat (210) are connected. The first connecting seat (200) and the second connecting seat (210) are connected. The first connecting seat (200) is installed at the center of the surface of the outer cover body (100) away from the sealing gasket (120).
5. A combined rear bearing outer cover as described in claim 4, characterized in that: A connecting seat 2 (210) is installed at the center of the inner surface of the mounting cover (300). The mounting cover (300) is connected to the outer cover body (100) through the connecting seat 1 (200) and the connecting seat 2 (210). The diameter of the mounting cover (300) is smaller than the diameter of the outer cover body (100).
6. A combined rear bearing outer cover as described in claim 5, characterized in that: The outer surface of the mounting cover (300) has three fixed protrusions (310) uniformly and integrally formed in a ring structure. A fixing hole (311) is provided at the center of the surface of the fixed protrusion (310). A mounting block (320) is integrally formed on the side surface of the mounting cover (300) away from the connecting seat (210).
7. A combined rear bearing outer cover as described in claim 6, characterized in that: The mounting block (320) has a through hole at the center of its surface. A bearing body (330) is installed inside the mounting block (320). The central axis of the bearing body (330) is collinear with the central axis of the circular through hole (101).