Estimate the horsepower that can be transmitted

Assignment Help Mechanical Engineering

Reference no: EM131377614

To what value could the gear hardness be reduced in Problem 15.31, without making the gear teeth weaker than the pinion teeth based on surface fatigue?

Problem 15.31

A pair of mating gears have 20° full-depth teeth with a diametral pitch of 8. Both gear and pinion are made of steel heat-treated to 350 Bhn, and both have a face width of 1.0 in. The teeth are cut with a top-quality hobbing operation. The pinion has 20 teeth and rotates 1100 rpm. It is mounted outboard on the shaft of an electric motor, and drives a 40-tooth gear that is positioned inboard on an accurately mounted blower shaft. The design life corresponds to 5 years of 60 hours/week, 50 weeks/year operation. Using a reliability of 99% and a safety factor of 1.5, estimate the horsepower that can be transmitted, based only on bending fatigue.

Reference no: EM131377614

Questions Cloud

What is the genetic nature of the lon mutation : Bio260- You have decided to do some genetic analysis on an earthworm species that is diploid. What is the genetic nature of the Lon mutation (genetic nature means is the Lon mutation dominant or recessive). How do you know this?

Explain whether the contract is enforceable : Finally, Zehmer claims that he was ‘‘high as a Georgia pine'' at the time but admits that he was not too drunk to make a valid contract. Explain whether the contract is enforceable.

Is there a contract or if so for what price : After reading the ad and then examining the car, O'Brien told a Lee Calan Imports salesman that he wanted to purchase the car for the advertised price of $1,095. Calan Imports refuses to sell the car to O'Brien for $1,095. Is there a contract? If ..

Discuss the impact of the identified internal-external force : For all assignments assume that you are the administrator of a fictitious organization of Bliss Care Healthcare. As the administrator, you are faced with the challenges of declining reimbursements from insurance providers and increasing demands fo..

Estimate the horsepower that can be transmitted : To what value could the gear hardness be reduced in Problem 15.31, without making the gear teeth weaker than the pinion teeth based on surface fatigue?

Discuss who wins in given case : Oliver maintains that a price quotation alone is not an offer. Southworth claims a valid contract has been made. Who wins? Discuss.

Estimate the horsepower that can be transmitted : Estimate the horsepower that can be transmitted with 99% reliability, based on tooth bending fatigue.

Does a binding contract exist : On April 6, the Adjutant General's office received by mail the signed contract dated April 3 and postmarked April 5. Does a binding contract exist? Explain.

Identify the common roles in a human resource project : Identify the common roles in a human resource project. Then, analyze these roles to typical human resource functions.Reorganize any two (2) roles at TriHealth that result in shared responsibilities and then state why you chose those two roles.Suggest..

User Account

All Pages