Engineering, 05.05.2020 07:23 edjiejwi

A commercial enclosed gear drive consists of a 20° spur pinion having 16 teeth driving a 48-tooth gear. The gears are straddle-mounted with bearings immediately adjacent. The pinion speed is 300 rev/min, the face width 2 in, and the diametral pitch 6 teeth/in. The gears are grade 1 steel, through-hardened at 200 Brinell, made to No. 6 quality standards, uncrowned, and are to be accurately and rigidly mounted. Assume a pinion life of 108 cycles and a reliability of 0.90, and use YN=1.3558N-0.0178, ZN=1.4488N-0.023. The power is 5hp. (Assume uniform loading, constant thickness gears).a. Find the AGMA factor of safety for bending for the pinion. b.Which of the AGMA terms used in part (a) will be different for the gear? No need to calculate them, just list the terms that would differ between pinion and gear.

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A commercial enclosed gear drive consists of a 20° spur pinion having 16 teeth driving a 48-tooth ge...

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