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
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Chapter 7, Problem 37P
To determine
The dimensions for a
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Gear 2 (pinion) runs at 1800 rpm ccw and transmits 3.5 kW to
frictionless, idler gear 3. The pressure angle is 20° with a module
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b. Pitch diameters of each gear.
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g. Torque on gear 4 shaft c.
Two shafts, each carrying a four-stepped pulley, are to be connected by a crossed belt. The driving shaft is to turn 150 rpm while the driven shafts is to turn 50, 150, 250 and 600 rpm. The smallest step of the driver is 10 in. in diameter. Find the diameters of all steps.
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7. A typical drive train for a 'geared' bicycle meant to be used on paved road (see a representative
image) has 48 teeth on front sprocket (Crank side), the diameter of front sprocket being 10.5 inches.
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(lowest gear) to Sprocket # 6 (highest gear) being 30, 26, 23, 20, 16 and 12, respectively. (Ignore
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of front Sprocket (at 5.25 inch radius length,
the force location indicated by red arrow), and
is engaged in Sprocket #5, what would be the
torque acting on Sprocket # 5, and the RPM at
which the rear wheel is spinning?
(b) For the condition as described in (a), If
the diameter of wheels is 26 inches, what is
the speed of the bicycle?
&
Chapter 7 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 7 - A shaft is loaded in bending and torsion such that...Ch. 7 - The section of shaft shown in the figure is to be...Ch. 7 - The rotating solid steel shaft is simply supported...Ch. 7 - A geared industrial roll shown in the figure is...Ch. 7 - Design a shaft for the situation of the industrial...Ch. 7 - The figure shows a proposed design for the...Ch. 7 - For the problem specified in the table, build upon...Ch. 7 - Prob. 8PCh. 7 - For the problem specified in the table, build upon...Ch. 7 - For the problem specified in the table, build upon...
Ch. 7 - In the figure is a proposed shaft design to be...Ch. 7 - The shaft shown in the figure is proposed for the...Ch. 7 - Prob. 20PCh. 7 - The shaft shown in the figure is proposed for the...Ch. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - A 25-mm-diameter uniform steel shaft is 600 mm...Ch. 7 - Prob. 29PCh. 7 - Compare Eq. (727) for the angular frequency of a...Ch. 7 - Prob. 31PCh. 7 - The steel shaft shown in the figure carries a...Ch. 7 - A transverse drilled and reamed hole can be used...Ch. 7 - Prob. 34PCh. 7 - The shaft shown in Prob. 721 is proposed for the...Ch. 7 - A guide pin is required to align the assembly of a...Ch. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - A ball bearing has been selected with the bore...Ch. 7 - Prob. 41PCh. 7 - A gear and shaft with nominal diameter of 35 mm...
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- (b) An internal wheelB with 90 teeth is keyed to a shaft F. A fixed internal wheel C with_ teeth is concentric with B. A compound wheel D-E gears with the two internal wheels; D has 30 teeth and gears with C while E gears with B. The compound wheels revolve freely on a pin which projects from a disc keyed to a shaft A co-axial with F. If the wheels have the same pitch and the shaft A makes_r.p.m., what is the speed of the shaft F ? Sketch the arrangement Tc= 90 Na(Speed of Shaft A)= 600rpmarrow_forwardA pair of iron cast gears connecting two shafts at the Angle of the elbow. The diameter of the pinion pitch and the gear is 80 mm and 100 mm. The shape of the gear gear was 14 restriction form. The static voltage allowed for both gear is 55 mpa. If the door transports to 2.95 kw power at the turn of 1200 RPM, identify the module and the number of teeth on each gear from the Angle of power and check the design from the Angle of the tear. Take the surface durability limit is 630 mpa and the modulus elasticity to iron cast is 84 kn /mm2.arrow_forwardA simple gear train of 30 and 50 teeth for pinion and gear wheel respectively, is used to drive an electric wheelchair at a velocity that is double the maximum velocity of slip. The pinion has an equal addendum as the gear wheel, a module of 3 mm, and a pressure angle of 14.5o. The wheelchair has a maximum velocity of 5 m/s when its pinion rotates at 800 r.p.m. Calculate The contact ratio.arrow_forward
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