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从链轮标准规定的齿形变动范围、滚刀告形角的变化对滚切链轮啮合传动性能的影响以及链轮齿顶厚度和滚刀齿根宽度对齿形角的限制等几方面对齿形角的优选问题进行了分析，并给出了优选结果。
From the sprocket standard tooth profile variation range, the hob angle changes on the hobbing sprocket meshing transmission performance as well as the sprocket tooth top thickness and gear tooth root width of the tooth profile angle restrictions on several aspects of The preferred problem of profile angle was analyzed and the preferred results were given.