水泵轴连轴承失效形式主要为：心轴断裂，心轴滚动表面、外圈沟(滚)道表面、滚动体表面的磨损和疲劳剥落及密封失效。

Main failure modes of automobile water pump bearings are: breakage of shaft, wear and fatigue flaking of rolling contact surfaces.

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水泵淤塞，密封环磨损过多。

The pump is stagnated. The sealing ring wears too much.

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动静环的密封面之间涂以润滑脂，防止动静环密封面在水泵开车前磨损。

Movement between the ring sealing surface coated with grease to prevent the movement ring sealing surface wear in the pump drive.

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动静环的密封面之间涂以润滑脂，防止动静环密封面在水泵开车前磨损。

Movement between the ring sealing surface coated with grease to prevent the movement ring sealing surface wear in the pump drive.

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