The frictional torque transmitted in a flat pivot bearing, assuming uniform wear

Question

The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing)

Options:

A . μwr

B . ¾μWR

C . ²/₃ μWR

D . ½μWR

Answer: Option D

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