Silicone rubber seal high temperature resistant clutch release bearing structure
By using silicone rubber seals in the clutch release bearing, designing sealing sections and corrugated sections between the inner and outer rings, and connecting the outer ring with a sealing strip, the problem of poor sealing performance after seal wear is solved, and a stable sealing effect of the high-temperature resistant seal is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI MINLIAN AUTOMOBILE PARTS CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-17
AI Technical Summary
The seals of existing high-temperature clutch release bearings are prone to wear due to the rotation of the inner ring, resulting in poor sealing performance. Furthermore, after wear, it is difficult to adaptively adjust to ensure a tight seal.
Silicone rubber sealing rings are used, and a high-temperature resistant sealing ring is installed between the inner and outer rings. The inner end of the sealing ring is provided with a sealing section and a corrugated section, and the outer end of the outer ring is provided with an outer sealing ring and a sealing strip, forming a multi-set sealing connection structure. When the inner ring rotates, the sealing section is tightly pressed against the inner sealing port by the elasticity of the corrugated section, and the outer sealing ring is connected to the outer ring by the sealing strip in an alternating manner to ensure sealing performance.
It effectively solves the problem of poor sealing performance after the sealing ring wears out, ensures a stable seal between the inner and outer rings, and extends the service life.
Smart Images

Figure CN224515694U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to a high-temperature resistant clutch release bearing structure with silicone rubber sealing ring. Background Technology
[0002] The clutch release bearing is a key component of the automotive transmission system. It is installed between the clutch and the gearbox and coordinates the rotation and axial movement of the release lever to achieve smooth engagement and disengagement of the clutch, reduce wear, and extend the service life of the transmission system.
[0003] Existing high-temperature clutch release bearing structures, such as the high-temperature sealing structure of a clutch release bearing disclosed in publication number CN221170474U, although they can achieve the function of sealing the space between the inner and outer rings from the outside, the high-temperature fluororubber seal ring that is fitted between the inner and outer rings is prone to wear due to the rotation of the inner ring, and after wear, it is inconvenient to adaptively tighten and adjust to ensure sealing. Therefore, we propose a high-temperature clutch release bearing structure with silicone rubber seal ring. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] The high-temperature resistant clutch release bearing structure with silicone rubber seal ring includes: a bearing body and a sealing assembly; the bearing body includes an inner ring and an outer ring that are movably installed at their inner and outer ends respectively; the sealing assembly includes a high-temperature resistant seal ring that is movably engaged between the inner and outer rings on both sides, a corrugated section that is fixedly provided at the inner end of the high-temperature resistant seal ring, a sealing section that is fixedly provided at the inner end of the corrugated section, an inner sealing port that is opened on both sides of the inner ring, and an outer snap-fit port that is opened on both sides of the outer ring.
[0007] Preferably, each of the high-temperature resistant sealing rings is further fixedly connected to an outer sealing ring, and the outer sealing ring is further fixedly arranged with a first sealing strip at its outer end.
[0008] Preferably, a second fixing strip is also arranged and fixed on both sides of the outer ring.
[0009] Preferably, an inner stop block is also fixedly installed on the inner side of each inner sealing port.
[0010] Preferably, each of the high-temperature resistant sealing rings is also fixedly installed with a steel frame.
[0011] Preferably, all the sealing sections are movably installed in the inner sealing port, and the outer ends of the high-temperature resistant sealing rings are movably engaged in the outer clamping port.
[0012] Preferably, both the inner and outer rings are provided with mounting openings, and multiple sets of steel columns are movably arranged and installed in the mounting openings. A retainer is movably installed at the outer end of each steel column.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0014] 1. In this utility model, the high-temperature resistant sealing ring installed between the inner ring and the outer ring in the bearing body can ensure the sealing of the middle part of the inner ring and the outer ring by the tight contact between its two ends and the inner ring and the outer ring. The sealing section set at the inner end of this high-temperature resistant sealing ring can always stably seal in the inner sealing port on the inner ring, thereby ensuring the sealing performance between the inner end of the high-temperature resistant sealing ring and the inner ring. When the inner ring rotates and the inner layer of the sealing section wears, the corrugated section set at the outer end of the sealing section can also use its elasticity to keep the sealing section pressed tightly against the inner sealing port, thereby solving the problem of poor sealing effect after the inner end of the existing high-temperature resistant sealing ring wears.
[0015] 2. In this utility model, the outer sealing ring and the multiple sets of first sealing strips at the outer end of the high-temperature resistant sealing ring can also be matched and installed between the second fixing strips at the inner end of the outer ring along with the installation of the high-temperature resistant sealing ring, thereby forming multiple sets of sealing connection structures to ensure the sealing performance between the outer end of the high-temperature resistant sealing ring and the outer ring. Attached Figure Description
[0016] Figure 1 This is an overall structural diagram of the present invention;
[0017] Figure 2 This is a side sectional view of the present invention;
[0018] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;
[0019] Figure 4 This utility model Figure 2 Enlarged view of B in the middle;
[0020] Figure 5 This is a structural diagram of the high-temperature resistant sealing ring of this utility model.
[0021] Figure label:
[0022] 100. Bearing body; 101. Inner ring; 102. Outer ring; 103. Mounting port; 104. Steel column; 105. Cage;
[0023] 200. Sealing assembly; 201. High-temperature resistant sealing ring; 202. Corrugated section; 203. Sealing section; 204. Inner sealing port; 205. Outer snap-fit; 206. Outer sealing ring; 207. First sealing strip; 208. Second fixing strip; 209. Inner stop block; 210. Steel frame. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0025] The following describes, with reference to the accompanying drawings, some embodiments of the high-temperature resistant clutch release bearing structure with silicone rubber sealing ring provided by this utility model.
[0026] Example 1:
[0027] Combination Figure 1-5 As shown, the high-temperature resistant clutch release bearing structure with silicone rubber sealing ring provided by this utility model includes: a bearing body 100 and a sealing assembly 200; the bearing body 100 includes an inner ring 101 and an outer ring 102, which are movably installed at their inner and outer ends respectively; both the inner ring 101 and the outer ring 102 are provided with mounting openings 103, and multiple sets of steel columns 104 are movably arranged and installed in the mounting openings 103, and a retainer 105 is movably installed at the outer end of the steel column 104; the sealing assembly 200 includes a high-temperature resistant sealing ring 201 that is movably engaged on both sides between the inner ring 101 and the outer ring 102, a corrugated section 202 that is fixedly provided at the inner end of the high-temperature resistant sealing ring 201, and a corrugated section 202 at the inner end of the corrugated section 202. All are fixedly installed with sealing sections 203, inner sealing ports 204 on both sides of the inner ring 101, and outer snap-fit ports 205 on both sides of the outer ring 102. The outer end of the high-temperature resistant sealing ring 201 is also fixedly connected with an outer sealing ring 206. The outer end of the outer sealing ring 206 is also fixedly arranged with a first sealing strip 207. The outer ring 102 is also fixedly arranged with a second fixing strip 208 on both sides. The inner side of the inner sealing port 204 is also fixedly installed with an inner stop block 209. The high-temperature resistant sealing ring 201 is also fixedly installed with a steel frame 210. The sealing sections 203 are all movably installed in the inner sealing port 204. The outer ends of the high-temperature resistant sealing ring 201 are all movably snapped into the outer snap-fit ports 205.
[0028] Specifically, the automotive clutch release bearing is a key component of the automotive transmission system, installed between the clutch and the gearbox. It coordinates the rotation and axial movement of the release lever to achieve smooth clutch engagement and disengagement. The high-temperature resistant sealing ring 201 installed between the inner ring 101 and the outer ring 102 in the bearing body 100 ensures a seal between the middle of the inner and outer rings 101 and 102 through its tight contact with both ends. The sealing section 203 at the inner end of the high-temperature resistant sealing ring 201 stably seals within the inner sealing port 204 on the inner ring 101 at all times, thus ensuring the seal between the inner end of the high-temperature resistant sealing ring 201 and the inner ring 101. When the inner ring 101 rotates and causes wear on the inner layer of the sealing section 203, the corrugated section 202 at the outer end of the sealing section 203 can also use its elasticity to keep the inner layer of the sealing section 203 tightly pressed against the inner seal. In port 204, the problem of poor sealing effect after wear of the inner end of the existing high-temperature resistant sealing ring 201 is solved. The outer sealing ring 206 set at the outer end of the high-temperature resistant sealing ring 201, and the multiple sets of first sealing strips 207 at the outer end of the outer sealing ring 206 can also be matched and installed between the second fixing strips 208 at the inner end of the outer ring 102 along with the installation of the high-temperature resistant sealing ring 201, thereby forming multiple sets of sealing connection structures to ensure the sealing performance between the outer end of the high-temperature resistant sealing ring 201 and the outer ring 102. The inner stop block 209 fixedly installed at the inner end of the inner sealing port 204 is mainly used to block the inner end of the sealing section 203 during the installation of the high-temperature resistant sealing ring 201, so as to accurately install it into the inner sealing port 204. The outer snap-fit 205 opened in the outer ring 102 is mainly used for the movable snap-fit installation of the high-temperature resistant sealing ring 201. The steel frame 210 is mainly used to support the high-temperature resistant sealing ring 201 and ensure its strength.
[0029] Working principle and usage process of this utility model:
[0030] After the high-temperature resistant sealing ring 201 is engaged and installed between the inner ring 101 and the outer ring 102 in the bearing body 100, the outer end of the high-temperature resistant sealing ring 201 is engaged within the outer retaining 205 to maintain a tight seal. The first sealing strip 207 at the upper end of the outer sealing ring 206 outside the high-temperature resistant sealing ring 201 can also be interleaved with the second fixing strip 208 at the inner end of the outer ring 102 to form multiple sealing structures, thereby ensuring the sealing performance between the high-temperature resistant sealing ring 201 and the outer ring 102. The sealing section 203 at the inner end of the high-temperature sealing ring 201 will be installed into the inner sealing port 204 on the inner ring 101 to maintain the seal between it and the inner ring 101. When the inner ring 101 in the bearing body 100 rotates, the inner layer of the sealing section 203 will wear. The corrugated section 202 at the outer end of the sealing section 203 can always keep the worn inner layer of the sealing section 203 tightly against the inner sealing port 204 through its elasticity, thereby ensuring the sealing performance between the inner end of the high-temperature sealing ring 201 and the inner ring 101.
[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A high temperature resistant clutch release bearing structure of a silicon rubber seal ring, characterized in that, include: Bearing body (100), sealing assembly (200); The bearing body (100) includes an inner ring (101) and an outer ring (102) that are movably mounted at their inner and outer ends, respectively; The sealing assembly (200) includes a high-temperature resistant sealing ring (201) that is movably engaged between the inner ring (101) and the outer ring (102) on both sides, a corrugated section (202) that is fixedly provided at the inner end of the high-temperature resistant sealing ring (201), a sealing section (203) that is fixedly provided at the inner end of the corrugated section (202), an inner sealing port (204) that is opened on both sides of the inner ring (101), and an outer snap-fit port (205) that is opened on both sides of the outer ring (102).
2. The high temperature resistant clutch puller bearing structure of claim 1, wherein, The outer end of each high-temperature resistant sealing ring (201) is also fixedly connected to an outer sealing ring (206), and the outer end of the outer sealing ring (206) is also fixedly arranged with a first sealing strip (207).
3. The high temperature resistant clutch puller bearing structure of claim 1, wherein, The outer ring (102) is also provided with second fixing strips (208) on both sides.
4. The high temperature resistant clutch puller bearing structure of claim 1, wherein, An inner stop block (209) is also fixedly installed on the inner side of the inner sealing port (204).
5. The high temperature resistant clutch puller bearing structure of claim 1, wherein, Each of the high-temperature resistant sealing rings (201) is also fixedly installed with a steel frame (210).
6. The high-temperature resistant clutch release bearing structure with silicone rubber seal ring according to claim 1, characterized in that, The sealing sections (203) are all movably installed in the inner sealing port (204), and the outer ends of the high-temperature resistant sealing rings (201) are all movably engaged in the outer slots (205).
7. The high temperature resistant clutch puller bearing structure of claim 1, wherein, The inner ring (101) and the outer ring (102) are each provided with an installation port (103), and multiple sets of steel columns (104) are movably arranged in the installation port (103). A retainer (105) is movably installed at the outer end of the steel column (104).