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SubsTech’s sister website Smooth Sliding provides independent engineering consulting services that help you to solve engine bearing related issues: failures, material selection, geometry design and optimization of hydrodynamic conditions.

Smooth Sliding is an engineering consulting company run by Dr. Dmitri Kopeliovich:

  • Director of Research & Development of King Engine Bearings.
  • World leading expert (25 years of experience) in design, technology and materials for Engine bearings in applications such as automotive, renewable energy, aviation, racing and others.
  • Founder and owner of SubsTech (Substances & Technologies) – a leading professional website on Materials Science and Engineering.
  • Author of numerous scientific and engineering publications and patents.
  • Founder and owner of Smooth Sliding.

For further information and for requesting consulting services please visit our sister website Smooth Sliding.



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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: 2018/02/03 by dmitri_kopeliovich
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