Conveyor belts - Determination of minimum pulley diameters
Conveyor belts - Determination of minimum pulley diameters
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ISO 3684:1990/Amd 1:2006 - Conveyor belts - Determination of minimum pulley diameters - is an international amendment to the 1990 ISO 3684 standard. It clarifies the application of the original standard for determining the minimum pulley diameters used with conveyor belts. The 2006 amendment explicitly states that the standard is not applicable to light conveyor belts as described in ISO 21183-1 (Light conveyor belts - Part 1: Principal characteristics and applications). The document was prepared by ISO/TC 41 (Pulleys and belts), Subcommittee SC 3 (Conveyor belts).
The amendment and parent standard focus on the practical and engineering aspects of pulley sizing for conveyor belts. Key technical topics and considerations covered or implied by the standard include:
Note: The amendment does not provide new numerical values or formulas in this extract; it clarifies scope exclusions (light conveyor belts).
ISO 3684:1990/Amd 1:2006 is used where safe, reliable and repeatable pulley sizing is required for industrial conveyor systems. Typical users and practical applications include:
Using the standard helps reduce belt fatigue, improve belt life, and ensure consistent performance across conveyor installations.
For anyone working on conveyor design or belt selection, referencing ISO 3684 along with ISO 21183-1 (for light belts) provides clearer scope and helps ensure the right pulley-sizing approach for the intended belt type.
Mentioned in the description and other SIST standards
