In a conical clutch, the mean radius of the bearing surface is 300 mm whereas the breadth is 20 mm. Find the inner and outer radii. The semi cone angle is 30Â°.

Mechanical Engineering : Theory of Machines - Quiz(MCQ)

160 mm, 140 mm

155 mm, 145 mm

145 mm, 155 mm

140 mm, 160 mm

Correct Answer : Option (B) : 155 mm, 145 mm

Explanation : In a conical clutch b sinα = r1 – r2
r1 – r2 = 10 and r1 + r2 = 300
r1 = 155 mm and r2 = 145 mm.

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