SHIGLEY'S MECH.ENGIN....(LOOSE)>CUSTOM<
10th Edition
ISBN: 9781260163155
Author: BUDYNAS
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 13, Problem 8P
To avoid the problem of interference in a pair of spur gears using a 20° pressure angle, specify the minimum number of teeth allowed on the pinion for each of the following gear ratios.
- (a) 2 to 1
- (b) 3 to 1
- (c) 4 to 1
- (d) 5 to 1
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Design a two-stage compound spur gear train for an overall ratio of approximately17+01:1. Specify tooth numbers for each gear in the train.
Two straight-toothed bevel gears mesh with a shaft angle of 90° and a diametral pitch of 5. The pinion has 20 teeth, and the gear ratio is 2:1. The addendum and dedendum are the same as for 20 stub teeth. For the gear, determine the pitch radius, cone angle, outside diameter, cone distance, and face width.
Design a two-stage compound spur gear train for an overall ratio of approximately 17+12:1. Specify tooth numbers for each gear in the train.
Chapter 13 Solutions
SHIGLEY'S MECH.ENGIN....(LOOSE)>CUSTOM<
Ch. 13 - A 17-tooth spur pinion has a diametral pitch of 8...Ch. 13 - A 15-tooth spur pinion has a module of 3 mm and...Ch. 13 - A spur gearset has a module of 6 mm and a velocity...Ch. 13 - A 21-tooth spur pinion mates with a 28-tooth gear....Ch. 13 - A 20 straight-tooth bevel pinion having 14 teeth...Ch. 13 - A parallel helical gearset uses a 20-tooth pinion...Ch. 13 - A parallel helical gearset consists of a 19-tooth...Ch. 13 - To avoid the problem of interference in a pair of...Ch. 13 - Prob. 9PCh. 13 - Prob. 10P
Ch. 13 - Prob. 11PCh. 13 - Prob. 12PCh. 13 - Prob. 13PCh. 13 - Prob. 14PCh. 13 - A parallel-shaft gearset consists of an 18-tooth...Ch. 13 - The double-reduction helical gearset shown in the...Ch. 13 - Shaft a in the figure rotates at 600 rev/min in...Ch. 13 - The mechanism train shown consists of an...Ch. 13 - The figure shows a gear train consisting of a pair...Ch. 13 - A compound reverted gear trains are to be designed...Ch. 13 - Prob. 21PCh. 13 - Prob. 22PCh. 13 - Prob. 23PCh. 13 - A gearbox is to be designed with a compound...Ch. 13 - The tooth numbers for the automotive differential...Ch. 13 - Prob. 26PCh. 13 - In the reverted planetary train illustrated, find...Ch. 13 - Prob. 28PCh. 13 - Tooth numbers for the gear train shown in the...Ch. 13 - The tooth numbers for the gear train illustrated...Ch. 13 - Shaft a in the figure has a power input of 75 kW...Ch. 13 - The 24T 6-pitch 20 pinion 2 shown in the figure...Ch. 13 - The gears shown in the figure have a module of 12...Ch. 13 - The figure shows a pair of shaft-mounted spur...Ch. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - A speed-reducer gearbox containing a compound...Ch. 13 - For the countershaft in Prob. 3-72, p. 152, assume...Ch. 13 - Prob. 39PCh. 13 - Prob. 40PCh. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - The figure shows a 16T 20 straight bevel pinion...Ch. 13 - The figure shows a 10 diametral pitch 18-tooth 20...Ch. 13 - Prob. 45PCh. 13 - The gears shown in the figure have a normal...Ch. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 49PCh. 13 - The figure shows a double-reduction helical...Ch. 13 - A right-hand single-tooth hardened-steel (hardness...Ch. 13 - The hub diameter and projection for the gear of...Ch. 13 - A 2-tooth left-hand worm transmits 34 hp at 600...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Figure shown below illustrates the gears in a speed-change gearbox used in machine tool applications. By sliding the cluster gears on shafts Band C, nine speed changes can be obtained as shown in Table given below. The problem of the machine tool designer is to select tooth numbers for the various gears (2 to 10) so as to produce a reasonable distribution of speeds for the output shaft. The gears 2, 6 and 9 are having 20, 25 and 50 teeth respectively. The input shaft speed is 450 rpm and the output speed can vary from 137 rpm to 580 rpm depending on the sequence of the gears. If the output speed obtained through the gear sequence 2-5-5-8 is 257 rpm and if the minimum and maximum number of teeth in the gear system are 20 and 50 respectively, (i) Suitable tooth numbers for the remaining gears (3,4,5,7,8 & 10)arrow_forwardFor a pair of spur gears, one design decision is to specify the pressure angles. Please select the common values of pressure angle per textbook. 300 200 250arrow_forwardA set of gears is used to reduce the speed from an electric motor to a shaft driving a grocery checkout conveyor, depicted below. The gear on the motor shaft is a 10-pitch pinion, has 18 teeth, and drives at 1200 rpm clockwise. The driven gear has 72 teeth. The motor has failed and is to be replaced with the only motor available, a 600 rpm motor with an 8-pitch pinion. Specify the set of commercially available 20⁰ spur gears, by number of teeth (N3and N4), that would result in the same conveyor speed and can be used without modification to the mounting (the center distance must not change). Find the number of teeth N3 on the pinion (drive) gear (teeth): Find the number of teeth N4 on the driven gear (teeth):arrow_forward
- A reverted gear train with a speed ratio of 12 consists of four gear wheels. Gear A has a module pitch of 3mm and is meshed with gear B. Whereas gear C that is meshed with gear D has a module pitch of 2.5mm. Gear B and C form a compound gear system. The distance between axis of rotation of driving gear A and driven gear B is equal to 200mm. If gear A has 24 teeth, determine the suitable number of teeth for all gears.arrow_forwardlb pair of bevel gears having 20 and 75 teeth are used on axes that intersect at a 90" angle. Determine the velocity ratio and the pitch angles. of both gears.arrow_forwardA two-step power transmission with two identical gear sets (pinions and output gears) is designed to carry 30 HP, has an input speed of 900 RPM, and an output speed of 100 RPM. What is the speed of the middle shaft? O 750 RPM O 600 RPM O 500 RPM 0 450 RPM O 300 RPMarrow_forward
- A pair of standard 20o full-depth spur gears has a module of 1 mm. The driven gear has 30 teeth. Determine the minimum number of teeth for the pinion so that the contact ratio is greater than 1.6.arrow_forwardExample:Design a compound gear train for an exact reduction ratio of 180:1 given: ϕ =20o Module: 4mmarrow_forward2) Two mating internal 10-pitch, spur gears have 16 and 86 teeth. Determine the center distance. 3) Two mating external 8-pitch, 20o , spur gears have 24 and 64 teeth. Determine the contact ratio. 4) Two mating 20°, 8-pitch, spur gears have 14 and 42 teeth. Will they interfere? 5) A pair of 20°, mild-steel gears are to be selected for an application where they need to transfer 5 hp. The pinion drives at 1800 rpm and the gear must rotate as close to 480 rpm as possible. Select a set of gears to accomplish this task. a) Determine a suitable diametral pitch and pressure angle. b) Use the required velocity ratio to iterate and determine appropriate number of teeth (confirm that these gears are commercially available). c) Calculate the pitch diameters and center distance.arrow_forward
- Figure shows an alicyclic gear train with the following details:A has 40 teeth external (fixed gear) ; B has 80 teeth internal ; C - D is a compound wheel having 20 and 50 teeth (external) respectively, E-F is a compound wheel having 20 and 40 teeth (external) respectively, and G has 90 teeth (external). The arm runs at 100 r.p.m. in clockwise direction. Determine the speeds for gears C, E, and B.arrow_forwardDesign a pair of straight bevel gears to transmit 5.0 hp at a pinion speed of 850 rpm. the gear speed should be approximately 300 rpm. consider both strength and pitting resistance. the driver is a gasoline engine, and the driven machine is a heavy-duty conveyor.arrow_forwardQuestion 01: Design a two-stage compound spur gear train for an overall ratio of approximately 17+12 : 1. Specify tooth numbers for each gear in the train.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Power Transmission; Author: Terry Brown Mechanical Engineering;https://www.youtube.com/watch?v=YVm4LNVp1vA;License: Standard Youtube License