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Hebei Hankai cassette oil seal
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2. Contaminant Protection Grease seals act as a first line of defense against contaminants. Dust, water, and debris can enter the bearing assembly and potentially lead to corrosion, pitting, and other forms of wear. By keeping these contaminants out, grease seals help maintain the integrity of the bearings.
wheel bearing grease seal

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2025-08-15 15:14
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Another factor that can contribute to oil seal failure is contamination. Around 47% of oil seals fail due to contamination by dirt, debris, or other particles. This can cause the seal to wear out quickly and lose its effectiveness. Regularly cleaning and inspecting the seals can help prevent contamination and prolong their lifespan

25 47 7 oil seal.

25 47 7 oil seal.