Within hydrostatic bearing systems ____________________?
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Answer: B. the oil film is maintained by supplying oil under pressure
Explanation
Hydrostatic bearings require an external high-pressure fluid pump to force lubricating oil into the bearing clearances. This pressurized supply lifts and separates the rotating journal from the bearing surface before rotation begins. Load-carrying capacity depends entirely on the external fluid pressure rather than relying on rotational speed. Bearing lubrication systems minimize friction and wear between moving mechanical parts in heavy industrial machinery. Hydrostatic systems differ from hydrodynamic bearings, which generate their own oil film pressure via journal rotation. External high-pressure pumps ensure zero starting friction and eliminate wear during slow-speed or stationary phases.
Relying solely on journal rotation to generate oil pressure describes hydrodynamic bearings rather than hydrostatic systems. Claiming hydrostatic bearings do not require an external lubricant supply ignores their fundamental reliance on pressure pumps. Using grease for lubrication is characteristic of boundary or grease-packed rolling element bearings rather than hydrostatic systems.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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