Machine Design
If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by

p/ZN
N/Zp
Z/pN
ZN/p

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Machine Design
When the belt is transmitting maximum power,

None of these
The tension in slack side is equal to the centrifugal tension
The tension in tight side is twice the centrifugal tension
The tension in tight side is thrice the centrifugal tension

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