Machine Design
Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to

Completely reversed loading
Dynamic loading
Combined static and dynamic loading
Static loading

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Machine Design
In oilness bearings

The oil film is maintained by supplying oil under pressure
Do not require external supply of lubricant
Grease required to be applied after some intervals
The oil film pressure is generated only by the rotation of the journal

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