Heat dissipating bearing
By installing a heat dissipation mechanism in the bearing, the problem of heat accumulation caused by the seal is solved by utilizing the airflow of the collar and ventilation frame and the heat conduction of the heat-conducting plate, thus ensuring the quality of the lubricant and the smoothness of the steel ball.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI TONGJI BEARING CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-05-29
AI Technical Summary
The sealing design affects airflow, causing heat to accumulate inside the bearing. Frictional heat generation affects the quality of the lubricant and the smoothness of the steel ball rotation.
A heat dissipation mechanism, including a collar, a ventilation frame, and a heat-conducting plate, is installed on the surface of the cage to dissipate heat through airflow and heat conduction, thus preventing heat accumulation.
It effectively dissipates internal heat from the bearing, maintains lubricant quality, ensures smooth rotation of the steel balls, and reduces the entry of external impurities.
Smart Images

Figure CN224301251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing technology, specifically a heat dissipation bearing. Background Technology
[0002] Bearings are core components in mechanical equipment used to support rotating shafts or moving parts. Their main functions include supporting rotating bodies and reducing friction. Bearings are usually composed of an inner ring, an outer ring, a cage, and steel balls. The rotating shaft is fixed to the inner ring and drives the inner ring to rotate simultaneously when it rotates.
[0003] Currently, some bearings use seals to block the gap between the inner and outer rings during use, preventing external dust and other impurities from entering between the inner and outer rings and reducing the impact of impurities on the lubricant in the bearing. However, the installation of seals directly affects airflow. Over time, the friction generated between the steel balls and the inner or outer ring tends to accumulate inside the bearing and is difficult to dissipate to the outside. Frictional heat not only causes thermal deformation of the inner and outer rings and affects the fitting accuracy of the inner and outer rings, but also accelerates the oxidation and deterioration of the lubricant, affecting the smoothness of the steel balls during rotation and causing the friction temperature to rise further. Utility Model Content
[0004] The purpose of this invention is to provide a heat dissipation bearing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation bearing, comprising an inner ring, an outer ring, a cage disposed between the inner ring and the outer ring, and steel balls embedded inside the cage, further comprising:
[0006] A surface heat dissipation mechanism mounted on the cage includes two collars that can cover the gap between the inner and outer rings;
[0007] A ventilation frame is fixedly connected between two collars, and an extension frame is provided at the top of the ventilation frame.
[0008] Preferably, the heat dissipation mechanism further includes a connecting rod fixedly connected to the surface of the retainer, the end of the connecting rod away from the retainer being fixedly connected to a collar, a ventilation frame being fixedly connected between the two collars, and a groove being formed on the surface of the collar.
[0009] Preferably, the width of the slot is equal to the thickness of the collar, and the slot is correspondingly provided with the ventilation frame.
[0010] Preferably, both sides of the top of the extension frame are arc-shaped, and the height of the top of the extension frame is lower than the height of the steel ball.
[0011] Preferably, a heat-conducting plate is embedded at the top of the extension frame, and the top of the heat-conducting plate is flush with the top of the extension frame.
[0012] Preferably, the inner wall of the collar is embedded with balls, and grooves are formed on both sides of the outer ring, with the surface of the balls in contact with the inner wall of the grooves.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention, through the cooperation of a heat dissipation mechanism and a cage, allows the airflow within the ventilation frame and extension frame to absorb heat from the inner ring of the bearing during use, preventing continuous heat accumulation that could affect bearing performance. Furthermore, the heat dissipation mechanism in this bearing ensures normal lubrication and smooth ball rotation during use. The collar reduces the entry of external impurities into the inner and outer rings, solving the problem in some bearings where seals can block impurities, but this can negatively impact heat dissipation, leading to heat buildup that affects the lubricant and bearing performance. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a three-dimensional structural diagram of the disassembled present invention;
[0017] Figure 3 This is a three-dimensional structural diagram of the cage, steel ball, heat dissipation mechanism, and ball bearing in this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the retainer, extension frame, and heat-conducting plate of this utility model;
[0019] Figure 5 This is a three-dimensional structural diagram of the present invention with the outer ring cut open.
[0020] In the diagram: 1. Inner ring; 2. Outer ring; 3. Cage; 4. Steel ball; 5. Heat dissipation mechanism; 51. Connecting rod; 52. Collar; 53. Ventilation frame; 54. Extension frame; 55. Heat conduction plate; 56. Slot; 6. Ball bearing; 7. Slot. 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 1-5 As shown, a heat dissipation bearing includes an inner ring 1, an outer ring 2, a cage 3 disposed between the inner ring 1 and the outer ring 2, and steel balls 4 embedded inside the cage 3. A heat dissipation mechanism 5 is installed on the surface of the cage 3. The heat dissipation mechanism 5 includes a connecting rod 51 fixedly connected to the surface of the cage 3. A collar 52 is fixedly connected to the end of the connecting rod 51 away from the cage 3. The collar 52 is in contact with the surfaces of both the inner ring 1 and the outer ring 2. There are two collars 52. A ventilation frame 53 is fixedly connected between the two collars 52. A groove 56 is opened on the surface of the collar 52. The width of the groove 56 is equal to the thickness of the collar 52. The groove 56 is correspondingly arranged with the ventilation frame 53. External air can be discharged into the interior of the ventilation frame 53 through the groove 56.
[0023] An extension frame 54 is connected to the top of the ventilation frame 53. Both sides of the top of the extension frame 54 are arc-shaped. The height of the top of the extension frame 54 is lower than the height of the steel ball 4. This ensures that the extension frame 54 can rotate with the cage 3 and avoids the extension frame 54 from colliding with the inner walls of the inner ring 1 and the outer ring 2. The inner wall of the collar 52 is embedded with balls 6. The surfaces on both sides of the outer ring 2 are provided with grooves 7. The surface of the balls 6 contacts the inner wall of the grooves 7. The arrangement of the balls 6 and the grooves 7 increases the smoothness of the collar 52 during rotation.
[0024] Working principle: The inner ring 1 is fitted onto the surface of the rotating shaft. When the rotating shaft rotates, the heat generated by the friction between the steel ball 4 and the inner wall of the inner ring 1 can be conducted to the surface of the rotating shaft for heat dissipation through the inner ring 1. The connecting rod 51 drives the collar 52 to rotate with the retainer 3. When the collar 52 rotates, the air around it flows rapidly. The outside air is discharged into the ventilation frame 53 and the extension frame 54 through the slot 56. A heat-conducting plate 55 is embedded in the top of the extension frame 54. The top of the heat-conducting plate 55 is flush with the top of the extension frame 54. The heat-conducting plate 55 can absorb the heat from the inner wall of the outer ring 2 and discharge the heat through the air flow inside the extension frame 54. The rapid air flow in the ventilation frame 53 and the extension frame 54 can carry away the heat, thereby reducing the heat accumulation between the inner ring 1 and the outer ring 2 and reducing the impact on the use of the steel ball 4.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat-dissipating bearing, comprising an inner ring (1), an outer ring (2), a cage (3) disposed between the inner ring (1) and the outer ring (2), and steel balls (4) embedded inside the cage (3), characterized in that, Also includes: A surface heat dissipation mechanism (5) is mounted on the retainer (3), the heat dissipation mechanism (5) including two collars (52) that can cover the gap between the inner ring (1) and the outer ring (2); A ventilation frame (53) is fixedly connected between two collars (52), and an extension frame (54) is provided at the top of the ventilation frame (53).
2. The heat dissipation bearing according to claim 1, characterized in that: The heat dissipation mechanism (5) further includes a connecting rod (51) fixedly connected to the surface of the retainer (3). The end of the connecting rod (51) away from the retainer (3) is fixedly connected to the collar (52). A ventilation frame (53) is fixedly connected between the two collars (52). The surface of the collar (52) is provided with a slot (56).
3. A heat dissipation bearing according to claim 2, characterized in that: The width of the slot (56) is equal to the thickness of the collar (52), and the slot (56) is correspondingly set with the ventilation frame (53).
4. A heat dissipation bearing according to claim 1, characterized in that: Both sides of the top of the extension frame (54) are arc-shaped, and the height of the top of the extension frame (54) is lower than the height of the steel ball (4).
5. A heat dissipation bearing according to claim 1, characterized in that: A heat-conducting plate (55) is embedded in the top of the extension frame (54), and the top of the heat-conducting plate (55) is flush with the top of the extension frame (54).
6. A heat dissipation bearing according to claim 1, characterized in that: The inner wall of the collar (52) is fitted with balls (6), and the surfaces on both sides of the outer ring (2) are provided with grooves (7), and the surface of the balls (6) is in contact with the inner wall of the grooves (7).