The diametral A speed-reducer has 20 full-depth teeth, and the single-reduction spur-gear gearset has 22 and 60 pitch is 4 teeth/in and the face width is 3.25 in. The pinion shaft speed is 1450 rev/min. The life goal of 5-year 24-hour-per- day service is about 3(109) pinion revolutions. The absolute value of the pitch variation is such that the quality number is 6. The materials are 4340 through-hardened grade 1 steels, heat-treated to 250 Brinell, core and case, both gears. The load is moderate shock and the power is smooth. For a reliability of 0.99, rate the speed reducer for power. Assume that the gear is a commercial enclosed unit and is uncrowned. Use (YMP-1.6831(3(109)-0.0323 and (ZN)p=1.4488(3 (109)) -0.023 NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Problem 14.025.b Transmitted Load and Bending Stress Determine the value of the transmitted load. W, and the achievable power based on the allowable bending stress calculated in the previous question. (You must provide an answer before moving to the next part.) The value of the transmitted load is lbf. The achievable power based on the allowable bending stress is hp.

The diametral A speed-reducer has 20 full-depth teeth, and the single-reduction spur-gear gearset has 22 and 60 pitch is 4 teeth/in and the face width is 3.25 in. The pinion shaft speed is 1450 rev/min. The life goal of 5-year 24-hour-per- day service is about 3(109) pinion revolutions. The absolute value of the pitch variation is such that the quality number is 6. The materials are 4340 through-hardened grade 1 steels, heat-treated to 250 Brinell, core and case, both gears. The load is moderate shock and the power is smooth. For a reliability of 0.99, rate the speed reducer for power. Assume that the gear is a commercial enclosed unit and is uncrowned. Use (YMP-1.6831(3(109)-0.0323 and (ZN)p=1.4488(3 (109)) -0.023 NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Problem 14.025.b Transmitted Load and Bending Stress Determine the value of the transmitted load. W, and the achievable power based on the allowable bending stress calculated in the previous question. (You must provide an answer before moving to the next part.) The value of the transmitted load is lbf. The achievable power based on the allowable bending stress is hp.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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