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← ScienceWhich mechanism determines oil film thickness in hydrodynamic bearings?
A)Viscous pressure generation✓
B)Molecular diffusion limitations
C)Surface tension domination
D)Turbulent kinetic energy dissipation
💡 Explanation
Viscous pressure generation is the mechanism that supports the load. Because viscosity resists shear from relative motion, it creates pressure within the converging gap; therefore, the oil film resists compression, rather than relying purely on surface tension, molecular diffusion or turbulence.
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