Machine Design
Deep groove ball bearings are used for

Heavy thrust load only
Radial load at high speed
Small angular displacement of shafts
Combined thrust and radial loads at high speed

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Machine Design
In hydrostatic bearings

Grease is used for lubrication
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

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