Aimed at main failure modes, the internal geometry of bearing and the structure of cage and seal are improved.

针对其主要失效形式，对轴承的内部几何形状及保持架和密封结构进行了改进。

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Aimed at main failure modes, the internal geometry of bearing and the structure of cage and seal are improved.

针对其主要失效形式，对轴承的内部几何形状及保持架和密封结构进行了改进。

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