A natural feed journal bearing of diameter 50 mm and length 50 mm oper – McqOptions

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1.	A natural feed journal bearing of diameter 50 mm and length 50 mm operating at 20 revolution/second carries a load of 2.0 kN. The lubricant used has a viscosity of 20 mPa s. The radial clearance is 50 μm. The Sommerfield number for the bearing is
A.	0.062
B.	0.125
C.	0.25
D.	0.785
Answer» C. 0.25

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