本文件提供了设计和制造直（非螺旋）侧装圆柱渐开线花键所需的数据和说明。 极限尺寸、公差、制造偏差及其对连接同轴花键元件之间配合的影响在公式中定义，并在表格中给出。除非另有规定，否则线性尺寸以毫米表示，角度尺寸以度表示。

This document provides the data and indications necessary for the design and manufacture of straight (non-helical) side-fitting cylindrical involute splines. Limiting dimensions, tolerances, manufacturing deviations and their effects on the fit between connecting coaxial spline elements are defined in the formulae and given in the tables. Unless otherwise specified, linear dimensions are expressed in millimetres and angular dimensions in degrees.