Machine Design
The strap end of a connecting rod of steam engine is joined by

Gib of cotter joint
Sleeve and cotter joint
Knuckle joint
Spigot socket cotter joint

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Machine Design
In oilness bearings

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

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Machine Design
Crowning on pulley helps

To increase pulley life
In increasing the slip of the belt
To keep the belt in centre on a pulley while it is in motion
In decreasing the slip of the belt

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