在选配机床挂轮时,有时挂轮比的精度要求达到小数点后的八位。下面介绍一种计算精密挂轮的方法。 当已知挂轮比值i后,先从“挂轮选取表”中选出两个和i相邻近的比值,其中一个路大可使　更接近或等于i值。 结论:通过 求得x、y值后,即可算出 现举例说明如下: 一、求i=0.16916844 In the optional machine hanging wheel, and sometimes the accuracy of the request to reach the number of decimal places eight after the decimal point. Here is a method of calculating the precision pinion. When the known value of the hanger ratio i, the first choice from the “wheel selection table” and two adjacent to the ratio of i, one of the roads can be made larger or closer to i value. Conclusion: By calculating the value of x, y, we can calculate the following example: First, find i = 0.16916844