The part shown in the figure below is to be used as a rotating member in a machine. Which of the following will NOT increase the fatigue life of this part?

Question

Answer

Reducing the fillet radius (ie, the radius at the base of the change in section) between the middle bearing and the adjoining sections

Answer

Redesign to equalize the cross-section of the middle bearing

Answer

Surface hardening treatments such as shot peening

Answer

Polishing the surface to remove scratches

Crowdly

The part shown in the figure below is to be used as a rotating member in a mac...

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