A wear-resistant bearing rubber seal

By setting a cavity inside the bearing rubber oil seal and filling it with high-pressure gas, the problem of sealing failure caused by wear of the rubber oil seal is solved, thereby improving the sealing effect and extending the service life of the rubber oil seal. Wearing rubber oil seals can be replaced in time through an indicator light system to ensure the sealing effect.

CN224515696UActive Publication Date: 2026-07-17ZHANGJIAKOU TIMES RUBBER PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAKOU TIMES RUBBER PROD CO LTD
Filing Date
2025-10-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing bearing rubber oil seals wear down due to friction between the inner and outer rings during use, resulting in ineffective sealing and an inability to monitor the pressure of the rubber seals in real time.

Method used

A wear-resistant bearing rubber seal was designed. By setting a cavity inside the rubber seal and filling it with high-pressure gas, the seal expands and fits tightly between the outer and inner rings. The high-pressure gas pushes the rubber seal to expand and fix it in place. Combined with an indicator light system, the gas pressure changes are monitored in real time to determine the wear condition.

Benefits of technology

This system reduces wear, improves sealing performance, extends the lifespan of rubber oil seals, and allows for timely replacement of worn or damaged rubber oil seals via an indicator light system, ensuring a good seal.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224515696U_ABST
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Abstract

This utility model relates to the field of bearing rubber oil seal technology and discloses a wear-resistant bearing rubber oil seal, including an outer ring assembly, a testing mechanism, an air intake mechanism, a rubber oil seal component mechanism, and an inner ring assembly. The rubber oil seal component mechanism includes a rubber oil seal body with a cavity inside. High-pressure air is introduced into the cavity through the air intake mechanism. This utility model inserts the rubber oil seal component mechanism between the outer ring assembly and the inner ring assembly, and introduces high-pressure gas into the cavity through the air intake mechanism. This increases the pressure inside the cavity, thereby pushing the rubber oil seal body to expand outward, achieving a seal. The expansion range of the rubber oil seal body driven by the high-pressure gas is larger than that of the rubber material itself, and the pressure change is small. This effectively achieves a seal while reducing wear and extending the service life of the rubber oil seal component mechanism. When not inflated, the rubber oil seal component mechanism is small in size, making it easy to disassemble and install.
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