As in the case of helical gears, spiral bevelgears give a much smoother tooth action than straightbevelgears, and hence are useful where high speed are encountered.
在案件的螺旋齿轮，螺旋锥齿轮给予一个更平滑齿行动的机率远高于直锥齿轮，因而是有益的高速，都遇到。
2
Straightbevelgears used in car differential have strict requirements for dimensional precision and quality, it is difficult to form accurately them by the traditional forging techniques.
轿车上的直齿圆锥齿轮尺寸精度与产品质量要求很高，难以采用常规的塑性加工技术成形。
3
The teeth on bevelgears can be straight, spiral or hypoid.