A conical friction clutch is used to transmit 50 kW at 1000 r.p.m. The semi cone angle is 15¬¨¬®‚Äö√†√ª and the coefficient of friction is 0.2. If the mean diameter of the bearing surface is 450 mm and the intensity of normal pressure is not to exceed 0.15 N/mm2, find the axial spring force necessary to engage the clutch.$#

A conical friction clutch is used to transmit 50 kW at 1000 r.p.m. The

1.	A conical friction clutch is used to transmit 50 kW at 1000 r.p.m. The semi cone angle is 15¬¨¬®‚Äö√†√ª and the coefficient of friction is 0.2. If the mean diameter of the bearing surface is 450 mm and the intensity of normal pressure is not to exceed 0.15 N/mm2, find the axial spring force necessary to engage the clutch.$#
A.	4796 N
B.	4774 N
C.	4785 N
D.	4742 N
Answer» B. 4774 N

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