spur bevel gear meaning in English

正齿伞齿轮
直齿伞齿轮

Study on gear tooth surface of generating spur bevel gear
滚齿直齿圆锥齿轮齿形的研究
A unified model was established for spur cylindrical gears , helical cylindrical gears , spur bevel gears and helical bevel gears
建立了直齿圆柱齿轮、斜齿圆柱齿轮、直齿圆锥齿轮、斜齿同锥齿轮的统一模型。
The result of static calculation showed that the tooth profile long modification of spur bevel gear possesses better effects of vibration reduction
静态计算结果表明，直齿锥齿轮齿廓长修形具有较好的减振效果。
Adopting the precision cold forging to carrying out the tooth profile modification of spur bevel gear evidently lowered the cost , thus provided a kind of new researching method for the modification , vibration reduction , noise dropping and design of the gear transmission system
直齿锥齿轮采用冷精锻进行齿廓修形，显著地降低了成本，这为齿轮传动系统的修形、减振、降噪和设计提供了一种新的研究方法。