BS ISO 4347:2015 pdf free.Leaf chains, clevises and sheaves一Dimensions, measuring forces, tensile strengths and dynamic strengths. BS ISO 4347 specifies the characteristics of chains used for general lifting purposes, together with the rim profiles of sheaves and the chain attachment ends of devises. It gives dimensions, limits for interchangeability, length measurement, preloading, minimum tensile strengths and minimum dynamic strengths. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 606, Short-pitch transmission precision roller and bush chains, attachments and associated chain sprockets ISO 156541), Fatigue test methods for transmission precision roller chains and leaf chains ASM E2) B29.8, Leaf chains, devises and sheaves 3 Chains 3.1 Nomenclature The nomenclature of chains is shown in Figure 1 (which does not necessarily define the actual form of the chain plates) and as given in Table 1 and Table 2. 3.2 Chain designation Leaf chain shall be designated by the prefix “LH”[“BL”] for chains derived from the ISO 606 A [ASME B29.8] series, or by the prefix“LL”for…