Question: The gearset of Prob. 1424 needs improvement of wear capacity. Toward this end the gears are nitrided so that the grade 1 materials have hardnesses

The gearset of Prob. 14–24 needs improvement of wear capacity. Toward this end the gears are nitrided so that the grade 1 materials have hardnesses as follows: The pinion core is 250 and the pinion case hardness is 390 Brinell, and the gear core hardness is 250 core and 390 case. Estimate the power rating for the new gearset.

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