Resumo

GARCIA TOLL, Alejandra Elena et al. Evaluation of plain bearing performance according to standard ISO 7902:2020. Ingeniería Mecánica [online]. 2022, vol.25, n.2, pp. 17-24.  Epub 09-Set-2022. ISSN 1815-5944.

The international standard ISO 7902: Hydrodynamic plain journal bearing under steady-state conditions - Circular cylindrical bearings, is widely used for the evaluation of plain bearings in different operation conditions. In Cuba, the procedure proposed by this document has been used to evaluate plain bearings in different working conditions and productive sectors of the national economy, both by Universidad Tecnológica de La Habana researchers, and from other universities. The objective of this research is to demonstrate the relevance and feasibility of applying ISO 7902 standard. In this work research, a study of the load capacity calculation for plain bearings, according to the third edition of ISO standard 7902: 20202 is presented. The mentioned procedure was used to simulate the operating conditions and work capacity of a plain bearing support in an HSR7 637-8P generator of a Hyundai Himsen 9H 25/33 engine in a fuel-oil thermal power plant. The results show evidence of similarity between the simulation and the real operating conditions in the plain bearing. In this work, it could be concluded ISO standard 7902:2020 allows establishing a feasible procedure to apply to prevent the effects caused by control actions, working conditions and modification in the design of plain bearing.

Palavras-chave : ISO 7902 standard; hydrodynamic lubrication, lubricant; film thickness.

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