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Bearings: definition of a hydrodynamic (full-film) lubricated journal bearing Identify the correct statement describing film formation and pressure generation in hydrodynamic lubrication. Choose the correct option.

Difficulty: Easy

Correct Answer: There is a thick (full) film of lubricant between journal and bearing

Explanation:

Concept
Hydrodynamic bearings develop a self-generated pressure in a full fluid film due to relative motion and wedge action, fully separating the surfaces. Option (d) describes hydrostatic lubrication (external pressurisation). Option (b) is boundary/mixed lubrication.


Final Answer
There is a thick (full) film of lubricant between journal and bearing

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