英文齿轮参数 number of teeth normal module transverse module addendum modification factor reference diameter tip diameter root diameter base diameter prefinishing diameter control form diameter effective outside diameter lead normal pressure angle transverse pressure angle helix angle base helix angle hand of helix circular thickness on Dp chordal addendum normal circular thickness on Dp after finishing and heat treatment base tangent measurement after finishing and heat treatment dimension over f diameter balls or pin after finishing and heat treament backlash center distance tool tip radius tooth tip fillet angle refered to axis

中文齿轮参数 齿数 法向模数 端面模数 变位系数 分度圆直径 齿顶圆直径 齿根圆直径 基圆直径 剃前渐开线起始圆直径 渐开线检查有效直径 渐开线终止圆直径 导程 法向压力角

端面压力角 分度圆螺旋角 基圆螺旋角 旋向 分度圆上弧齿厚 弦齿高 分度圆弦齿厚 公法线长度 跨棒距 总侧系 中心距 刀具齿顶圆角半径 齿顶倒角