The frictional torque transmitted in a flat collar bearing, considering uniform wear, is (where r1 and r2 = External and internal radii of collar respectively)

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Q. The frictional torque transmitted in a flat collar bearing, considering uniform wear, is (where r1 and r2 = External and internal radii of collar respectively)

(A) 1 2 μW(r1+r2)
(B) 2 3 μW(r1+r2)
(C) 1 2 μW( r 3 1 −r 3 2 r 2 1 −r 2 2 )
(D) 2 3 μW( r 3 1 −r 3 2 r 2 1 −r 2 2 )

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✅ Correct Answer: (A) 1 2 μW(r1+r2)

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