It plays a very important role of the shape of transitional curve in gear root to bending strength,for higher strength,we must research the transitional curve in gear root.

• 齿根过渡曲线的形状对齿根弯曲强度有重要影响,为了提高齿轮的弯曲强度,就有必要研究齿根过渡曲线。