GB/T 18842-2008 in English

《GB/T 18842-2008圆锥直齿渐开线花键》由TC109（全国机器轴与附件标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准是对GB/T 18842-2002《圆锥直齿渐开线花键》的修订。本标准规定了圆锥直齿渐开线花键的术语、代号和定义、尺寸的计算公式、尺寸系列、公差等级与配合类别、公差、参数标注、检验方法和尺寸表等内容。本标准适于用内花键齿形为直线，外花键齿形为渐开线、标准压力角45、模数为0.50mm~1.50mm和锥度为1：15的圆锥直齿渐开线花键。

Scope

This standard specifies the terms, codes and definitions, calculation formulas of dimensions, dimension series, tolerance grades and fit categories, tolerances, parameter marking, inspection methods and dimension tables, etc. content. This standard is applicable to the tooth shape of the internal spline is straight line, the tooth shape of the external spline is involute, and the standard pressure angle is 45^. , conical straight tooth involute spline with modulus of 0.50mm~1.50mm and taper of 1:15.