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Lubrication & Tribology (Viscosity (The No-Slip Condition on the…
Lubrication & Tribology
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- Requirements for Lubricants
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Elasto-hydrodynamic
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Lubricant introduction between rolling contact surfaces,
Boundary
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or velocity, viscosity or quantity of lubricant too low
If film breaks down, not thick enough for full-film lubrication
Hydrostatic
Film pressure results from external pressure,
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Thus, can be used where slow
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Hydrodynamic
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Film pressure results from viscosity and moving surface,
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