an element of a surface or an axis is a - describes a condition of a surface of revolution in which all - is the condition permitting a uniform amount of - indicating that a tolerance applies to surfaces all Position Toleranceplane of a feature is permitted to vary from true (theoretically...
INCLUDEPICTURE "http://.tec-ease/images/projected_tolerance.gif" \* MERGEFORMATINET Projected Tolerance Zone延伸公差带 - applies to a hole in which a pin, stud, screw, etc., is to be inserted. It controls the perpendicularity of the hole to the extent of the projection from the hole and...
内外螺纹旋合时，其公差带代号用斜线分开，如6H/6g、6H/5g6g等。普通螺纹的标注示例 圆柱管螺纹 非螺纹密封的圆柱管螺纹、用螺纹密封的圆柱管螺纹及圆锥管螺纹。管螺纹标注应标注螺纹符号和管子公称直径，直径单位为英寸。非螺纹密封的圆柱管螺纹的外螺纹公差等级分A级和B级两种，A级为精密级，B级为粗糙级。内螺纹...