The 20-kg steel ring A with inside and outside radii of 50 mm and 60 mm, respectively, rests on a fixed horizontal shaft of 40-mm radius. If a downward force P = 150 N applied to the periphery of the...

Topic: Journal Bearings

Extracted text: The 20-kg steel ring A with inside and outside radii of 50 mm and 60 mm, respectively, rests on a fixed horizontal shaft of 40-mm radius. If a downward force P = 150 N applied to the periphery of the ring is just sufficient to cause the ring to slip, calculate the coefficient of friction u and the angle 0. 40 mm В 50 mm 60 mm А PY