Q.4A 0.15 m diameter journal run in a bearing0.3 m long. The lubricant used has a specificgravity of 0.855 and a kinematic viscosity1.81 stokes. If the radial clearance maybe assumed to be uniform and equal to0.05 mm, determine the power required toovercome the viscous resistance of lubricantwhen the journal rotates at 300 r.m.p.?

Given:Diameter, d=0.15 mLength of bearing, L=0.3 mSpecific gravity of lubricant=0.855kinematic…

Answered: A 0.15 m diameter journal run in a…

A 0.15 m diameter journal run in a bearing 0.3 m long. The lubricant used has a specific gravity of 0.855 and a kinematic viscosity

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Q.4
A 0.15 m diameter journal run in a bearing
0.3 m long. The lubricant used has a specific
gravity of 0.855 and a kinematic viscosity
1.81 stokes. If the radial clearance may
be assumed to be uniform and equal to
0.05 mm, determine the power required to
overcome the viscous resistance of lubricant
when the journal rotates at 300 r.m.p.?

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