04) A flat 30-cm diameter disk is rotated at 800 rpm at distance of 2 mm from a flat, stationary surface. If SAE-30 oil at 200C fill the gap between the disk and the surface. estimate the torque needed to rotate the disk. Torque = T = J rdF

04) A flat 30-cm diameter disk is rotated at 800 rpm at distance of 2 mm from a flat, stationary surface. If SAE-30 oil at 200C fill the gap between the disk and the surface. estimate the torque needed to rotate the disk. Torque = T = J rdF

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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Concept explainers

Lubricants

Lubricant can be expressed as the substance that is applied among surfaces to control the wear and tear and improve performance. Lubricants play an essential part in the safety of machinery components like gears, shaft, linkage, cam, clutches, and many others. The quantities which affect the amount of lubricant are temperature, surrounding conditions, speed of the components, and many more.

Question

U=3 m/S,
04) A flat 30-cm diameter disk is rotated at 800 rpm at distance of 2 mm from a flat,
stationary surface. If SAE-30 oil at 200C fill the gap between the disk and the surface,
estimate the torque needed to rotate the disk.
Torque = T = f rdF
%3D

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