因此，几何变化或失败而高接触应力和过度磨损或许是可以避免的。

Thus, geometric changes or failure due to high contact stresses and excessive wear may be prevented.

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准双曲面齿轮与普通圆锥齿轮相比，具有重合度大、齿面接触应力低、传动平稳、冲击和噪音小、承载能力高和寿命长等优点。

Compared to bevel gear, hypoid gear has larger overlap coefficient, lower gear contact stress, more smooth transmission, lower impact and noise, higher load bearing capacity, longer life and so on.

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由于模具在非常高的接触应力下工作，其寿命大为缩短，因此，锻件的制造成本也不断提高。

For working under extremely high of contacting stress, long service life of dies would be shortened.

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