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Boundary Lubrication Friction Coefficient Calculator













How This Is Calculated


$$ \mu_b = \frac{ \gamma }{ F_n } $$ where:

μb   =   Coefficient of friction   (Dimensionless)

γ   =   Tangential friction force   (N)

Fn   =   Normal Load   (N)


Assumptions


  • The fluid is newtonian.
  • The system is in steady state.
  • Lubricant film is uniform.
  • Thermal effects are negligible.
  • Contact conditions are constant.


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Coefficient of Friction in Hydrodynamic Lubrication