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一、前言 本标准规定了薄壁轴瓦的主要尺寸和公差,虽然不希望所规定的尺寸都采用,但采用标准尺寸可降低加工成本。 对每个轴承座尺寸,本标准提出了壁厚尺寸范围,以便能按照设计的需要选择轴颈的尺寸。 薄壁轴瓦的某些尺寸和公差,由于其特殊性而不能直接测量。因此在第6节中规定了检验这些尺寸与公差的方法。 2、适用范围 本标准适用于轴承座孔内径为20～500毫米的往复运动机器中的薄壁轴瓦。 本标准规定了轴瓦的一般结构要素,但在特殊设计中,是否采用这些结构要素由用户根据自己的使用知识决定。 3、参考标准 ISO3547滑动轴承-卷制轴套的尺寸、公差和检验方法。
First, the preamble This standard specifies the main dimensions and tolerances of thin-walled bushings, although do not want the size of the provisions are used, but the use of standard size can reduce processing costs. For each bearing seat size, this standard presents a wall thickness range so that the size of the journal can be selected as required for the design. Some dimensions and tolerances of thin-walled bushings can not be directly measured due to their special nature. Therefore, Section 6 specifies the methods for checking these dimensions and tolerances. 2, the scope of this standard applies to bearing bore diameter of 20 ~ 500 mm reciprocating machine in thin-walled bearing. This standard specifies the general structural elements bearing, but in the special design, the use of these structural elements by the user according to their own use of knowledge decision. 3, reference standard ISO3547 plain bearings - roll sleeve size, tolerances and test methods.