环形齿轮或驱动小齿轮上齿磨损。

Worn teeth on ring gear or drive pinion gear.

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驱动小齿轮轴承的端隙。

End play in drive pinion bearings.

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它有一个桶，上面安装了由小齿轮驱动的齿圈。

It has a drum with gear ring fitted on it which is driven by pinion.

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与张力辊齿轮啮 合的小齿轮驱动传动轴；

The pinion meshed with the tension roll drives the transmission shaft;

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与张力辊齿轮啮 合的小齿轮驱动传动轴；

The pinion meshed with the tension roll drives the transmission shaft;

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