ISO 3019的本部分规定了两螺栓和四螺栓的尺寸和尺寸，并建立了识别码 正排量旋转液压动力泵和电机的安装法兰和轴端。 它适用于带外螺纹的圆柱键轴端，也适用于无螺纹的圆柱键轴端 带外螺纹的锥形键轴端和30°渐开线花键轴端。 注:渐开线花键符合SAE J744[1]的要求。

This part of ISO 3019 specifies sizes and dimensions and establishes an identification code for the two- and fourbolt mounting flanges and the shaft ends of positive-displacement, rotary hydraulic fluid power pumps and motors. It is applicable to cylindrical keyed shaft ends with an external thread, as well as to those without a thread, to conical keyed shaft ends with an external thread and to 30° involute spline shaft ends. NOTE Involute spline is in accordance with SAE J744 [1].