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+//(Power Screws) Example 6.7

+//Speed of the tool holder v (m/min)

+v = 5

+//Number of starts of the screw n

+n = 1

+//Nominal diameter of the screw d (mm)

+d = 48

+//Pitch of the screw p (mm)

+p = 8

+//Force exerted by operating nut W (N)

+W = 500

+//Mean radius of the friction collar rm (mm)

+rm = 40

+//Coefficient of friction at thread and collar surfaces mu

+mu = 0.15