SubsTech provides engineering consulting services that help you to solve engine bearing related issues:

  • Engine bearing failure analysis
  • Investigation of engine bearing metallurgy: properties, microstructure, composition
  • Selection of the best bearing material for a particular engine
  • Analysis of engine bearing geometry and dimensions
  • Comparison of bearings made by different manufacturers
  • General questions on materials engineering: technologies, metallurgy, material properties and behavior

Contact Dr. Dmitri Kopeliovich for consultancy

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Selection of engine bearing materials

Dr. Dmitri Kopeliovich

Selection of bearing material suitable for a particular engine should be based on the following engine parameters:

Stock engines, street performance and circle track racing engines may use conventional aluminum-tin-silicon bi-metal or copper based tri-metal bearings depending on the load and crankshaft materials (AlSi bi-metal – for nodular cast iron shafts, tri-metal - for forged steel shafts).

Tri-metal bearings are recommended for off-road and off-shore racing engines (typically higher loaded applications).

High strength tri-metal materials (e.g. Sputter bearings) are recommended for applications with high bearing loading where conventional tri-metal material undergoes fatigue (for example upper conrod bearings in diesel engines with direct fuel injection).

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selection_of_engine_bearing_materials.txt · Last modified: 2018/01/23 by dmitri_kopeliovich
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