CONNECT F/SHIGLEY'S MECH.ENGR.DESIGN>I<
10th Edition
ISBN: 9781260058499
Author: BUDYNAS
Publisher: INTER MCG
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Chapter 15, Problem 2P
For the gearset and conditions of Prob. 15-1, find the power rating based on the AGMA surface durability.
15-1 An uncrowned straight-bevel pinion has 20 teeth, a diametral pitch of 6 teeth/in, and a transmission accuracy number of 6. Both the pinion and gear are made of through-hardened steel with a Brinell hardness of 300. The driven gear has 60 teeth. The gearset has a life goal of 109 revolutions of the pinion with a reliability of 0.999. The shaft angle is 90°, and the pinion speed is 900 rev/min. The face width is 1.25 in, and the normal pressure angle is 20°. The pinion is mounted outboard of its bearings, and the gear is straddle-mounted. Based on the AGMA bending strength, what is the power rating of the gearset? Use K0 = 1 and SF = SH = 1.
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A gear set with a 20-tooth input pinion and a 42-tooth gear has a diametral pitch of 4 teeth/in. the pinion speed is 200 rpm with an input torque of 170 in-lbf. Which component of the load contributes to the transmitted power and what is it’s magnitude?
Choose answer below
Radial load 68lbf
Tangential load 68lbf
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Tangential load 136 lbf
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A 57-tooth spur gear is in mesh with a 23-tooth pinion. The gearset transmits 125 hp at 1000 pinion rpm. Size the spur gears for a bending failure safety factor of at least 2 assuming a steady torque, 25∘ pressure angle, full-depth teeth, Qν = 9, an AISI 4140 steel pinion, and a class 40 cast iron gear.
Part A
Find the appropriate standard diametral pitch for the gearset.
Part B
Find the minimum required face width of the gears needed to satisfy the safety requirements
Q/A steel spur pinion and gear of grade 1 have a diametral pitch of 11 teeth/in , shaped profile teeth, 16 and 32 teeth, respectively, a 20. pressure angle, the pinion speed is 585 rev/min.
The tooth properties are Sactual bending =20230 psi and the Brinell hardness is 210. For a design factor of 3, a face width of 0.85 in, what is the power due to bending and wear for pinion?
Hint: - use "Shigleys Mechanical Engineering Design 8th Edition"
Chapter 15 Solutions
CONNECT F/SHIGLEY'S MECH.ENGR.DESIGN>I<
Ch. 15 - An uncrowned straight-bevel pinion has 20 teeth, a...Ch. 15 - For the gearset and conditions of Prob. 15-1, find...Ch. 15 - An uncrowned straight-bevel pinion has 30 teeth, a...Ch. 15 - For the gearset and conditions of Prob. 15-3, find...Ch. 15 - An uncrowned straight-bevel pinion has 22 teeth, a...Ch. 15 - Prob. 6PCh. 15 - In straight-bevel gearing, there are some analogs...Ch. 15 - Refer to your solution to Probs. 15-1 and 15-2. If...Ch. 15 - Prob. 9PCh. 15 - Prob. 10P
Ch. 15 - Apply the relations of Prob. 15-7 to Ex. 15-1 and...Ch. 15 - Prob. 14PCh. 15 - 15-15 to 15-22 As in Ex. 15-4, design a...Ch. 15 - 15-15 to 1 5-22 As in Ex. 154, design a...Ch. 15 - 15-15 to 15-22 As in Ex. 15-4, design a...Ch. 15 - 15-15 to 15-22 As in Ex. 15-4, design a...Ch. 15 - 15-15 to 15-22 As in Ex. 15-4, design a...Ch. 15 - 15-15 to 15-22 As in Ex. 15-4, design a...Ch. 15 - 15-15 to 15-22 As in Ex. 15-4, design a...Ch. 15 - Prob. 22P
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