A 25-mm-diameter shaft is pulled through a cylindrical bearing as shown in Fig. P1.77. The lubricant that fills the \(0.3-\mathrm{mm}\) gap between the shaft and bearing is an oil having a kinematic viscosity of \(8.0 \times 10^{-4} \mathrm{~m}^{2} / \mathrm{s}\) and a specific gravity of 0.91. Determine the force \(P\) required to pull the shaft at a velocity of \(3 \mathrm{~m} / \mathrm{s}\). Assume the velocity distribution in the gap is linear.

Figure P1.77

Transcribed Image Text:

Bearing Lubricant Shaft 0.5 m P