The torque required to overcome viscous resistance of a collar bearin – McqOptions

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1.	The torque required to overcome viscous resistance of a collar bearing is (where R1 and R2 = External and internal radius of collar)
A.	(μπ²N/60t) × (R₁ - R₂)
B.	(μπ²N/60t) × (R₁² - R₂²)
C.	μπ²N/60t) × (R₁³ - R₂³)
D.	(μπ²N/60t) × (R₁⁴ - R₂⁴)
Answer» E.

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