Fluids

Classical Mechanics Level 5

A pivot bearing used on the shaft of an electrical instrument is shown .Oil with a viscosity of   0.010 lb. s/ft 2 0.010 \text{lb. s/ft}^2 fills the 0.001 in 0.001\text{ in} gap between the rotating shaft and the stationary base. Find the frictional torque (in ft.lb \text{ft.lb} ) on the shaft when it rotates at 5000 rpm 5000 \text{ rpm} .

7.33 × 10 − 4 7.33\times { 10 }^{ -4 } 3.13 × 10 − 2 3.13\times { 10 }^{ -2 } 9.53 × 10 − 4 9.53\times { 10 }^{ -4 } 1.3 × 10 − 5 1.3\times { 10 }^{ -5} 9.53 × 10 − 7 9.53\times { 10 }^{ -7 }

Jaswinder Singh by Jaswinder Singh , 23, India

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1 solution

Jaswinder Singh
Nov 24, 2015

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