标准摘要
[中文适用范围]： ISO 9448 的这一部分规定了 G 型导套、阶梯式滑动导套、1 型的主要尺寸和公差（以毫米为单位），用于冲压工具并在一定长度上以过盈配合安装在夹板中。 长度的剩余部分确保引导。 衬套设有润滑间隙。 它根据 ISO 9448 的这一部分提供了材料指南，并规定了衬套的硬度和名称。 [外文原描述]： ISO 9448-8:2013 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form G, stepped gliding bushes, type 1, intended for use in press tools and to be mounted in the clamp plate with interference fit over a certain length. The remaining portion of the length ensures the guiding. The bushes are provided with a clearance for lubrication. It gives guidance on the materials, and specifies the hardness and the designation of bushes in accordance with ISO 9448-8:2013.
英文名称Tools for pressing — Guide bushes — Part 8: Form G, gliding bushes, stepped, type 1