Machine Design
A fast and loose pulley drive is used when

Shafts are arranged parallel and rotate in the opposite directions
Shafts are arranged parallel and rotate in the same directions
Shafts are arranged at right angles and rotate in one definite direction
Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft

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

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

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