标准摘要
[中文适用范围]： 本部分 ISO 4378 定义了用于滑动轴承领域的基本符号。还定义了用作上标和下标的附加符号。所使用的字符来自拉丁字母和希腊字母、阿拉伯数字以及其他符号，例如点、逗号、水平线或星号。在最简单的情况下，应用符号仅由基本字符组成；在最复杂的情况下，由带有下标和上标（附加符号）的基本字符组成。为了国际适用性，所有基本符号和附加符号均源自英语单词，并尽可能采用了目前技术文献中使用的符号。已尝试使所有类型滑动轴承的符号具有广泛的一致性。该分类用于计算、技术和几何测定以及滑动轴承的质量保证。对于某些结构具有固定值的量，尽可能用大写字母表示。根据特殊应用领域，指定的基本字符可单独使用，或必要时与附加符号适当组合，以最大限度地减少混淆风险；可以通过使用适当的索引和附加符号来避免多重符号。 [外文原描述]： ISO 4378-4:2009 defines basic symbols for use in the field of plain bearings. Additional signs are also defined for use as superscripts and subscripts. The characters employed are drawn from the Latin and Greek alphabets, Arabic numerals and other signs, for example points, commas, horizontal lines or asterisks. In the simplest case, an application symbol consists of the basic character alone; in the most complex, of the basic character with subscripts and superscripts (additional signs). For the purposes of international applicability, all basic symbols and additional signs have been derived from English words, and designations used in technical literature up to now have been adopted as far as possible. Wide conformity of the symbols for all types of plain bearings has been attempted. This classification is established for use in calculations and technological and geometrical determinations, as well as in the quality assurance of plain bearings.
英文名称Plain bearings — Terms, definitions, classification and symbols — Part 4: Basic symbols