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AAT&D Four-Ball Test Machine

4-Ball Test Description (PDF)

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Testing Services

Test methods ideal for measuring and comparing lubricants for friction, wear, corrosion, film strength, and oxidation stability. Excellent repeatability. Quick turnaround.

Testing of a variety of lubricants and material surfaces (including steel, stainless steel, brass, aluminum, ceramics, plastics, and more):
      Motor oils
      Gear oils
      Hydraulic fluids
      Greases
      Oil-based coolants
      Water-based coolants
      Drawing oils
      Rolling oils
      Cutting fluids
      Diesel fuels
      Biodiesel fuels
      Compressor oils
      Brake fluids

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