Machine Design
In hydrodynamic bearings

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

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Machine Design
When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will

Have contact at the bottom most of the bearing
Move towards right of the bearing making the metal to metal contact
Move towards right of the bearing making no metal to metal contact
Move towards left of the bearing making metal to metal contact

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