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A journal and bearing are to be designed for a shaft that turns at 250 rpm....

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Mechanical Engineering

A journal and bearing are to be designed for a shaft that turnsat 250 rpm. Suppose
ISO VG100 (SAE Engine 30) is to be used as lubricant and thebearing length is to be equal to
1.2 times the diameter. If the no-load power loss is not to exceed2.5 x 10-4 horsepower and the
diametral clearance is 0.0045 times the diameter, estimate themaximum diameter that can be
used for the journal, and the allowable temperature limit.

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