Solved: A steel spur pinion has a pitch of 6 teeth/in, 17
Chapter 14, Problem 14-18(choose chapter or problem)
A steel spur pinion has a pitch of 6 teeth/in, 17 full-depth milled teeth, and a pressure angle of \(20^{\circ}\). The pinion has an ultimate tensile strength at the involute surface of 116 kpsi, a Brinell hardness of 232, and a yield strength of 90 kpsi. Its shaft speed is 1120 rev/min, its face width is 2 in, and its mating gear has 51 teeth. Use a design factor of 2.
(a) Pinion bending fatigue imposes what power limitation? Use the Gerber criteria to compensate for one-way bending.
(b) Pinion surface fatigue imposes what power limitation? The gear has identical strengths to the pinion with regard to material properties.
(c) Determine power limitations due to gear bending and wear.
(d) Specify the power rating for the gearset.
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