齿面的承载能力应与齿面硬度有关，硬度越高，则其承载能力也越高。根据齿面硬度的大小，通常人们将齿轮传动分为两类，即硬齿面齿轮传动和软齿面齿轮传动。通常一对啮合齿轮的齿面硬度均大于350HBW，称为硬齿面齿轮，否则即称为软齿面齿轮。
Machining hardened face gear with high precision is one of the key developments of gear machining technology at present.
硬齿面齿轮的精加工是目前齿轮加工技术发展的重点之一。
参考来源 - 新构形法硬齿面插齿刀的研制·2,447,543篇论文数据，部分数据来源于NoteExpress
对硬齿面齿轮在不同的磨损阶段的磨损特性进行了定性和定量分析。
The characteristics of gears in each wear stage were analysed qualitatively and quantitatively.
研究以珩代磨的硬齿面齿轮加工方法和珩齿机理具有重要的现实意义。
The study on the method of machining hard teeth profile gear of honing instead of grinding and honing mechanism has the meaning of important reality.
渐开面包络环面内螺纹蜗杆砂轮磨齿，是一种硬齿面齿轮精加工的新型工艺。
Grinding gear with the toroidal involute interior thread worm grind wheel is a new kind of process in hard surface gear finish machining.
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