用“非零“负变位原理（Ｘ１＋Ｘ２＜０）代替传统零度位、正变位原理，用大齿制（）代替传统标准齿高制获得一种新型高强度、低噪声斜齿圆柱齿轮。切齿试验和噪声仍验表明这是一种不提高齿轮制造成本的最佳方法，即在常规机床和刀具材质前提下，不必磨齿、采用优质材料、加大齿轮尺寸，即可达到目的。 A new type of high strength and low noise bevel gear was obtained by replacing the traditional zero degree and positive displacement principle with “nonzero” negative displacement principle (X1 + X2 <0) instead of traditional standard tooth height system. Tooth cutting tests and noise tests have shown that this is a way not to improve the cost of gear manufacturing the best way, that is, under the premise of conventional machine tools and tool materials, without grinding, using high quality materials, increase gear size, you can achieve their goals.