Machine Design
The resistance to fatigue of a material is measured by

Endurance limit
Ultimate tensile strength
Young's modulus
Elastic limit

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Machine Design
In hydrodynamic bearings

The oil film is maintained by supplying oil under pressure
Do not require external supply of lubricant
Grease is used for lubrication
The oil film pressure is generated only by the rotation of the journal

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Machine Design
In hydrostatic bearings

Do not require external supply of lubricant
The oil film is maintained by supplying oil under pressure
The Oil film pressure is generated only by the rotation of the journal
Grease is used for lubrication

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