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April 10, 2026VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES MARINE ENGINEERING AND TECHNOLOGIESOpen Access

Comparative analysis of tribological characteristics of stern-tube bearing materials working by the scheme of a direct and an opposite friction pair

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Authors

YTY. N. TsvetkovASArina Stanislavovna SvetlovskayaDTDmitriy Viktorovich Tretyakov

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Overview

Comparative analysis evaluates friction characteristics in stern-tube bearings, suggesting implications for material choice.

Key Points

  • This analysis aims to compare the tribological characteristics of different friction pair configurations under boundary lubrication conditions.
  • Used MI-1 friction machine for tests with forward and reverse friction pairs
  • Applied fresh water lubrication in a closed cycle system
  • Maintained water temperature between 17°C and 23°C during tests
  • Examined wear and roughness changes of nylon and metal components
  • The pressure in the contact zone increased nearly threefold when changing from reverse to direct friction pairs
  • Nylon roughness approached that of metal roughness under testing conditions
  • Direct friction pairs showed significantly increased wear of nylon and higher friction coefficients compared to reverse pairs

Cite This Study

Tsvetkov et al. (2026) studied this question.

synapsesocial.com/papers/69d894ad6c1944d70ce05a9ahttps://doi.org/10.24143/2073-1574-2026-1-7-18
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