A pivot bearing used on the shaft of an electrical
Chapter 1, Problem 1.86(choose chapter or problem)
A pivot bearing used on the shaft of an electrical instrument is shown in Fig. P1.86. An oil with a viscosity of \(\mu= 0.010~ \mathrm{lb \cdot s/ft^2}\) fills the 0.001-in. gap between the rotating shaft and the stationary base. Determine the frictional torque on the shaft when it rotates at 5000 rpm.
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