Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 17, Problem 25P
A double-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket.
- (a) What is the allowable horsepower of this drive?
- (b) Estimate the center-to-center distance if the chain length is 82 pitches.
- (c) Estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In the figure below, a motor with power 150kw and speed of 2500 rpm
is connected to shaft 1(by coupling) in a clockwise direction. Shaft 2 is
connected to shaft 1 by gears 1 and 2.
If 30% of the power is consumed by the gear3 and 9% by the pulley
and 61% by the sprocket, draw torque diagrams for both shafts. •
Lengths: AB=90mm/BC=GH=50mm/CD3HI=60mm/DE=IJ=80mm
13
Gear3 E
Gear2
14
15
16
Motor
shafth
2.
17
Bearing
Shaft1
Gear1
sprocket
The disc clutch of an automobile is carried on a 2-inch 6-splined shaft and not to slide under load. The nominal dimensions are as follows: b = 0.25 D; t = 0.075 D and d = 0.85 D. The hub length of 150 % of shaft diameter. Determine the total horsepower transmitted at 3,600 rpm, if the yield strength of the shaft is 1,400 psi
Hence
v = 44.1 m/s
N = 1500 x 44.1/23.6 = 2800 rev/min.
EXAMPLE 6.
Two parallel shafts connected by a cross belt have the diameters of pulleys 40cm and 60cm
respectively. The direction of rotation of the driven shaft is required to be reversed, by changing
over to an open belt drive. State if the same belt can be used. If not, what is the remedy? Assume
that the center distance between the shaft is fixed at 6meters.
CHAIN DRIVE
CLASSIFICATION OF CHAIN
(a) Hoist chains as shown below: These are used for hoists, cranes, block and tackle pulley
arrangement.
Chapter 17 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 17 - Example 17-2 resulted in selection of a 10-in-wide...Ch. 17 - A 6-in-widc polyamide F-l flat belt is used to...Ch. 17 - Prob. 3PCh. 17 - A flat-belt drive is to consist of two...Ch. 17 - In solving problems and examining examples, you...Ch. 17 - Return to Ex. 17-1 and complete the following. (a)...Ch. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - Two shafts 20 ft apart, with axes in the same...
Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - A designer has to select a metal-belt drive to...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Two B85 V belts are used in a drive composed of a...Ch. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - The geometric implications of a V-flat drive are...Ch. 17 - A 2-hp electric motor running at 1720 rev/min is...Ch. 17 - The standard roller-chain number indicates the...Ch. 17 - Prob. 24PCh. 17 - A double-strand no. 60 roller chain is used to...Ch. 17 - A four-strand no. 40 roller chain transmits power...Ch. 17 - Prob. 27PCh. 17 - Prob. 28PCh. 17 - Prob. 29PCh. 17 - Prob. 30PCh. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Prob. 33PCh. 17 - For Prob. 17-29 estimate the elongation of the...
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
- 2. Two shafts, one solid the other one hollow, are connected end to end by means of a coupling in which there are 8 screws on the pitch diameter D = 250 mm. The solid shaft has diameter d = 50 mm and transfers the power P = 500 kW at 75 rev/s. The external diameter of the hollow shaft is dex = 75 mm. %3D Note: All parts of the system must be equally strong, and able to transfer the required power Calculate: (a) The internal diameter d; of the hollow shaft (b) The diameter of the bolts d, connecting the two shafts (c) If the hollow shaft has to be replaced by a rectangular hollow cross-section with outer dimensions b xh and uniform wall thickness of 4 mm. Calculate the values b, h while following the request to keep h = 2barrow_forwardA hollow shaft of 1m length is designed to transmit a power of 30kW at 630 rpm. The maximum permissible angle of twist in the shaft is 1degree. The inner diameter of the shaft is 0.6 times the outer diameter. The modulus of rigidity is 90 GPa. Determine the outside diameter of the shaft?arrow_forwardA flat belt is to consist of 2 m diameter and 1.5 m diameter cast iron pulleys spaced at 4.8 m apart. It is to transmit 50 kW at a pulley speed of 380 rev/min. By using a service factor of 1.1 and a design factor 1277 ks 60 of 1.0: (a) Calculate the hoop tension, F. due to centrifugal force. (b) (c) b Find the torque,T due to the design power and pulley speed. Design and select a suitable belt type and dimension for the above application.arrow_forward
- A solid constant-diameter circular shaft is subjected to the torques of TA = 480 lb-ft, TB = 1060 lb-ft, Tc= 860 lb-ft, and Tp = 280 lb-ft, acting in the directions shown. The bearings shown allow the shaft to turn freely. (a) Plot a torque diagram showing the internal torque in segments (1), (2), and (3) of the shaft. Use the sign convention presented in %D Section 6.6. (b) If the allowable shear stress in the shaft is 5800 psi, what is the minimum acceptable diameter for the shaft? TB TA Tc (1) Tp (3) В C D Answer: (a) T1 = Ib-ft T2 = Ib-ft T3 = Ib-ft (b) d = in.arrow_forwardI want right solution plz solve if you know 100% flange coupling connects two 50 mm diameter lengths of commercial shafting. The coupling flanges are bolted together with four bolts of the same material as the shaft. The bolts are set in clearance holes. The diameter of the bolt circle is 240 mm and the flange thickness is 22 mm, Determine the minimum bolt diameter required to transmit the same torque that the shaft can transmit. What power may be transmitted at 200 rev/ min under steady load conditions?arrow_forwardA shaft is required for a chain drive illustrated in figure 5.42. The power transmitted is 12 kW at 100 rpm. The masses of the sprockets are 5 and 16.3kg, with respective diameters of 254.6 and 460.8 mm. The material selected for the shaft is quenched and drawn 817M40 with ultimate tensile strength 850 MPa and yield strength of 700 MPa. The torque is transmitted between the shaft and sprockets by means of keys in profiled keyways. Determine the minimum diameter for the shaft based on the ASME equation for the design of transmission shafting if the desired reliability is 90 per cent. Use an initial estimate for the shaft diameter of 60 mm.arrow_forward
- Q1/ A 6-in-wide polyamide F-1 flat belt is used to connect a 2-in-diameter pulley to drive a larger pulley with an angular velocity ratio of 0.5. The center-to-center distance is 9 ft. The angular speed of the small pulley is 1750 rev/min as it delivers 2 hp. The service is such that a service factor Ks of 1.25 is appropriate. (a) Find Fc, Fi, Fla, and F2. (b) Find Ha, nfs, and belt length. (c) Find the dip.arrow_forwardA motor provides 60 hp power to a wheel B. It rotates a solid shaft in AISI 1020 steel, 4 cm in diameter, at a speed of 300 rpm. Power is drawn from the shaft using belts attached to pulleys A and C. (Use the table if necessary) (a) Draw the torque diagram of the driven shaft. (b) What is the safety factor of the driven shaft? Answer: 5.22 (c) Determine the angle of torsion of pulley C with respect to pulley A. Answer: -1.88°arrow_forwardA pulley 610 mm diameter is driven at 300 revs/min by a belt, the tensions in the tight and slack sides of the belt being 670 N and 270 N. Find the power transmitted.arrow_forward
- A spur gear is mounted on a 28mm shaft at equal distances from two supporting bearing.The gear pitch circle is 7in and its pressure angle o = 15°. Its gearbox transmit 15kW.The shaft and gear turns together with an angular velocity of 30 rad/s. Select the most suitable bearing and calculate its bearing life in hours if dynamic load capacity is equivalent to 22kN.arrow_forwardIn the figure below, a motor with power 150kw and speed of 2500 rpm is connected to shaft 1(by coupling) in a clockwise direction. Shaft 2 is connected to shaft 1 by gears 1 and 2. If 30% of the power is consumed by the gear3 and 9% by the pulley and 61% by the sprocket, draw torque diagrams for both shafts. If the pressure angle of the gears is 20 degrees to the x-axis, Calculate the reaction forces of the bearings and draw the bending moment diagrams for both shafts according to the information below: Lengths: AB=90mm/BC=DGH=50mm/CD=HI=60mm/DE=IJ=80mm Diameters: dG1=dG2=47mm/ dG3=20mm/ d(pulley)=35mm/d(sprocket)=40mm Gears Gear2 Tew) shaftz Bearing Shaft Gear1 SProcketarrow_forwardThe module and the number of teeth on the pinion of a spur gear are 12mm and 15teeth respectively.A power of 400kW is to be transmitted at 1700rpm of width.if the involute teeth are of standard proportions (addendum=m) with the pressure angle of 22.5° determine (A) torque due to power delivered (B) tangential load (C) teeth width (E)load on the bearingsarrow_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 Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering 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
EVERYTHING on Axial Loading Normal Stress in 10 MINUTES - Mechanics of Materials; Author: Less Boring Lectures;https://www.youtube.com/watch?v=jQ-fNqZWrNg;License: Standard YouTube License, CC-BY