本标准包括有关叶链的以下信息:一系列用销交替组装的连接板，其连接方式可在相邻节距之间自由铰接。主要的主题是（a）描述；（b） 编号和标记系统；（c） 装配和一般比例；（d） 互换性的一般链条尺寸；（e） 最小极限抗拉强度；（f） 链长公差；（g） 测量载荷；和（g）预加载。本标准还包括以下有关U形夹的信息:（a）设计考虑；和（b）U形夹类型。本标准还包括有关滑轮比例的信息。也有关于（a）一般链条尺寸的表格。嗯,；（b） 最小极限抗拉强度；和（c）B型叶链锚爪的尺寸，英寸。嗯。还有关于润滑和维护的补充信息。

This Standard includes the following information on Leaf Chains: A series of link plates alternately assembled with pins in such a way that the joint is free to articulate between adjoining pitches. The main topics are(a) Description;(b) Numbering and marking system;(c) Assemblies and general proportions;(d) General chain dimensions for interchangeability;(e) Minimum ultimate tensile strength;(f) Tolerance for chain length;(g) Measuring load; and(g) Preload.This Standard also includes the following information on Clevises:(a) Design considerations; and(b) Clevis types.This Standard also includes information on proportions of Sheaves. There are also Tables for(a) General Chain Dimensions, in. and mm;(b) Minimum Ultimate Tensile Strength; and(c) Dimensions for Anchor Clevises-Type B Leaf chain, in. and mm. There is also supplementary information on lubrication and maintenance.