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 17, Problem 19P
To determine
The selection of Gates rubber V-belt.
The factor of the safety.
The belt life in passes and hours
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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...
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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
- A horizontal belt conveyor arranged as shown in the figure P1 below operates at a speed of 270fpm and requires 25 Hp at the 40-inch-diameter driving drum. The drum receives power from a countershaftthrough a pair of spur gears. A motor operating at 860 rpm delivers power to the countershaft through aroller chain. The mechanical efficiency of the chain drive is 94 % and of the gears is 96 %. a) Determine theHp of the motor you would recommend. b) Determine the rpm of the driving drum and the countershaft. c)Calculate the number of teeth on the large sprocket required running the conveyor belt at the speedspecified. d) Determine the transmitted torque on the countershaft, in in-lb.arrow_forwardA 55-hp four-cylinder internal combustion engine is used to drive a medium-shock brick-making machine under a schedule of two shifts per day. The drive consists of two 25-in sheaves, with a sheave speed of 425 rev/min. A value of Ks = 1.5 and a design factor of 1.0 applies. Determine the number of D360 V-belts needed, calculate the factor of safety, and estimate the life in hours. The number of D360 V-belts needed is The factor of safety, nfs, is belts. and the life of the belts is hours.arrow_forwardThe width of the belt used if its thickness is 6 mm. Ans. 261 mm 8. A nylon-core flat belt has an elastomer envelop; is 200 mm wide, and transmits 60 KW at a belt speed of 25 m/s. The belt has a mass of 2 kg/m of the belt length. The belt is used in a crossed configuration to connect a 300 mm diameter driving pulley to a 900 mm diameter driven pulley at a shaft spacing of 6 m. A. Calculate the belt length and the angles of wrap. Ans. 13.95 m, 3.34 rad or 191.4° B. Compute the belt tensions based on a coefficient of friction of 0.33. Ans. 1.76 KN, 1.96 KNarrow_forward
- A 60 hp air pump blower in 18hr/day service running at a speed of 500 rpm is driven by means of a multiple v-belt drive which is powered by a compressor-stator motor with speed 1300 rpm. The center distance must be between 30 to 40 inches and the available driver sheave diameter iS 14 inches. Recommend a multiple v-belt drive that respects the following condition stated.arrow_forwardA conveyor is driven by a 2.5-hp high-starting-torque electric motor through a flexible coupling to a worm-gear speed reducer, whose speed ratio is 35, and then via a roller chain to the conveyor shaft that is to turn about 12 rpm; motor rpm is 1750. Operation is smooth, 8 hr./day and service factor can be taken as 1.2. Decide the chain pitch in inch.arrow_forwardA chain drive is desired to couple a gearmotor with a bucket elevator. The 40 hp. gearmotor will operate at 350 rpm and the elevator drive shaft must operate as close to 60 rpm as possible. Select an appropriate chain size, commercially available sprockets, and number of links for a chain. Also calculate the actual chain speed and the center distance.arrow_forward
- A single plate friction clutch with both sides of plate being effective is used to transmit power at an engine speed of 200rpm. It has outer and inner radii 10cm and 8cm respectively. Find maximum power transmitted and the corresponding axial thrust, if the maximum intensity of pressure is not to exceed 0.08N/mm2 . Assume coefficient of friction as 0.25.arrow_forward1. A 10 hp. 1400 rpm motor uses a roller chain to drive a line-shaft at 400 rpm with a center to center distance of 2 ft. The motor shaft has a diameter of 1 % inches and the load applied is moderate shock. Determine the approximate length of the chain.arrow_forwardmulti-disc clutch has three discs on the driving shaft and two on the driven shaft. The inner diameter of the contact surface is 120 mm. The maximum pressure between the surface is limited to 0.1 N/mm . Find the outer diameter for transmitting 25 kW at 1575 rpm . assume uniform wear condition and coefficient of friction 0.3.arrow_forward
- Determine the no. of links of an RC50 roller chain to transmit power from a 10-hp, 1200-rpm motor to a centrifugal pump running at 300 rpm. Use a service factor of 1.4. The number of teeth on the smaller sprocket is 19.arrow_forwardThe larger diameter and face of the disk of a multiple disk chutch are 225 mm and 20 mm respectively. The load applied to the spring of the clutch axially is 1500 N. Assuming that there are 8 pairs of friction 0.18 and tuning 800 rpm. Find the power transmitted by the clutch using uniform pressure method. (Ans, 13.67 kW)arrow_forwardA worm running at 2000rev/min is to drive a worm wheel at 200 rev/min and to transmit to it 15kW. The worm is double-threaded, of 80 mm mean diameter and 16mm pitch. The thrust of the worm is taken be a collar of mean diameter 75 mm. The coefficient of friction is 0.05 for both worm and collar. Find: a. The input power b. The system efficiency.arrow_forward
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