A steel spur pinion and gear have a diametral pitch of 12

Chapter 14, Problem 14.15

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A steel spur pinion and gear have a diametral pitch of 12 teeth/in, milled teeth, 17 and 30 teeth, respectively, a 20 pressure angle, a face width of 7 8 in, and a pinion speed of 525 rev/min. The tooth properties are Sut 5 76 kpsi, Sy 5 42 kpsi and the Brinell hardness is 149. Use the Gerber criteria to compensate for one-way bending. For a design factor of 2.25, what is the power rating of the gearset?

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