Machine Design
The property of a bearing material which has the ability to accommodate small particles of dust, grit etc. without scoring the material of the journal, is called

Fatigue strength
Comformability
Bondability
Embeddability

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Machine Design
A fast and loose pulley drive is used when

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

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