A shaft with a diameter of D 5 80 mm and a lengthof L 5 400 mm, shown in Fig. P2127 is
Chapter 2, Problem 2-127(choose chapter or problem)
A shaft with a diameter of D 5 80 mm and a lengthof L 5 400 mm, shown in Fig. P2127 is pulled with a constantvelocity of U 5 5 m/s through a bearing with variablediameter. The clearance between shaft and bearing, whichvaries from h1 5 1.2 mm to h2 5 0.4 mm, is filled with aNewtonian lubricant whose dynamic viscosity is 0.10 Pa?s.Determine the force required to maintain the axial movementof the shaft. Answer: 69 N
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