Question: A set of sleeve bearings has a specification of shaft journal diameter of 1.250 in with a unilateral tolerance of 0.001 in. The bushing bore

A set of sleeve bearings has a specification of shaft journal diameter of 1.250 in with a unilateral tolerance of −0.001 in. The bushing bore has a diameter of 1.252 in with a unilateral tolerance of 0.003 in. The bushing is 1 ¼ in long. The radial load is 250 lbf and the shaft rotational speed is 1750 rev/min. The lubricant is SAE 10 oil and the axial-groove sump temperature at steady state Ts is 120◦F. For the cmin, cmedian, and cmax assemblies analyze the bearings and observe the changes in S, ǫ, f, Q, Qs , _T, Tmax, T¯f, and hp.

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Given d 1250 in ta 0001 in b 1252 in tp 0003 in 1 125 in W 250lbi N 1750 revmin SAE 10 lu... View full answer

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