ASME B29.8 – Leaf Chains, Clevises and Sheaves

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.