A thrust bearing having collars of external and internal diameter as – McqOptions

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1.	A thrust bearing having collars of external and internal diameter as 40 cm and 20 cm respectively, carries an axial load of 3000 N. The co-efficient of friction is 0.09 and shaft runs at 420 rpm. The power lost in friction would be equal to ____.
A.	1.94 kw
B.	1.84 kw
C.	2 kw
D.	2.5 kw
Answer» C. 2 kw

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