Connect 1-semester Access Card For Shigley's Mechanical Engineering Design
10th Edition
ISBN: 9780077591632
Author: Richard G Budynas; Keith J Nisbett
Publisher: McGraw-Hill Education
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Chapter 11, Problem 43P
To determine
The required radial rating for bearing
The required radial rating for bearing
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b) Design a self-aligning ball bearing with basic dynamic load rating of 69.5 KN to be used in the automobile industry to carry a thrust load of 1184 N. The expected life of the bearing is 5201 hours at 628 rpm. Take k=3 for all types of ball bearings. Take the value of the shock load factor as 1.7 and radial and axial load factors are 1.4 and 2.2 respectively, the rotational factor is 1. Calculate:
i) Expected life of bearings in millions of revolutions
ii) Design equivalent dynamic load in N
iii) Basic equivalent dynamic load in N
iv) Radial load acting on the bearing in N
As56.oA 407 radial ball bearing with inner race rotation has a 12 seconds work cycle as mentioned below For 3 seconds For 9 seconds F,= 5 kN F,= 3.5 kN F = 2 kN Speed = 900 r.p.m Speed = 1200 r.p.m F= 0 Steady load Light shock If the basic dynamic capacity of the bearing is 42500 N. Determine the expected average life of the bearing Take X= 0.56 and Y= 1,43..
A bearing is subjected to a radial force of 8kN and a thrust force of 3 kN. Thevalues of X and Y factors are 0.56 and 1.5 respectively. The shaft rotates at 1200 RPM. The diameter of the shaft is 75mm and Bearing no. 6315 (C= 112000N) is selected for this application. Estimate the life of this bearing with 90% reliability.
Chapter 11 Solutions
Connect 1-semester Access Card For Shigley's Mechanical Engineering Design
Ch. 11 - Manufacturer Rating Life, Revolutions Weibull...Ch. 11 - Manufacturer Rating Life, Revolutions Weibull...Ch. 11 - Manufacturer Rating Life, Revolutions Weibull...Ch. 11 - Problems 112 and 113 raise the question of the...Ch. 11 - Prob. 5PCh. 11 - Manufacturer Rating Life, Revolutions Weibull...Ch. 11 - Two ball bearings from different manufacturers are...Ch. 11 - 11-8 to 11-13 For the bearing application...Ch. 11 - 11-8 to 11-13 For the bearing application...Ch. 11 - 11-8 to 11-13 For the bearing application...
Ch. 11 - 11-8 to 11-13 For the bearing application...Ch. 11 - 11-8 to 11-13 For the bearing application...Ch. 11 - 11-8 to 11-13 For the bearing application...Ch. 11 - A countershaft carrying two V-belt pulleys is...Ch. 11 - A countershaft carrying two V-belt pulleys is...Ch. 11 - A countershaft carrying two V-belt pulleys is...Ch. 11 - A countershaft carrying two V-belt pulleys is...Ch. 11 - For the shaft application defined in Prob. 3-77,...Ch. 11 - For the shaft application defined in Prob. 3-79,...Ch. 11 - An 02-series single-row deep-groove ball bearing...Ch. 11 - An 02-series single-row deep-groove ball bearing...Ch. 11 - 11-22 to 11-26 An 02-series single-row deep-groove...Ch. 11 - 1122 to 1126 An 02-series single-row deep-groove...Ch. 11 - 1122 to 1126 An 02-series single-row deep-groove...Ch. 11 - 1122 to 1126 An 02-series single-row deep-groove...Ch. 11 - 1122 to 1126 An 02-series single-row deep-groove...Ch. 11 - The shaft shown in the figure is proposed as a...Ch. 11 - Repeat the requirements of Prob. 11-27 for the...Ch. 11 - The shaft shown in the figure is proposed as a...Ch. 11 - Repeat the requirements of Prob. 11-29 for the...Ch. 11 - Shown in the figure is a gear-driven squeeze roll...Ch. 11 - The figure shown is a geared countershaft with an...Ch. 11 - The figure is a schematic drawing of a...Ch. 11 - A gear-reduction unit uses the countershaft...Ch. 11 - The worm shaft shown in part a of the figure...Ch. 11 - In bearings tested at 2000 rev/min with a steady...Ch. 11 - A 16-tooth pinion drives the double-reduction...Ch. 11 - Estimate the remaining life in revolutions of an...Ch. 11 - The same 02-30 angular-contact ball bearing as in...Ch. 11 - A countershaft is supported by two tapered roller...Ch. 11 - For the shaft application defined in Prob. 3-74,...Ch. 11 - For the shaft application defined in Prob. 3-76,...Ch. 11 - Prob. 43PCh. 11 - The gear-reduction unit shown has a gear that is...
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- ....The rating life at 90% reliability for a ball bearing is 15 x 106 revolutions. If the bearing is subjected to an equivalent radial load of 2000 N, which of the following is its dynamic load rating? Group of answer choices 4506 N 4932 N 1890 N 1665 Narrow_forward...Which of the following is the rating life for a ball bearing with total expected life of 20 x 106 revolutions at 99% reliability? Group of answer choices 37 x 10^6 rev 79 x 10^6 rev 2.7 x 10^6 rev 149 x 10^6 revarrow_forwardi) Explain the static rating of rolling contact bearings.   ii) Write any three technical reasons why ball and roller bearings need to be lubricated. b) Design a self-aligning ball bearing to be used in a turbine to carry a combined radial load of 4466 N and thrust load of 1420 N. The basic dynamic load rating of the bearing is 31 kN at 547 rpm. Take k=3 for all types of ball bearings. Take the value of the shock load factor as 1.3. The axial and radial load factors are 1.8 and 1.2 respectively and the rotational factor is 1. Calculate:  i) Basic equivalent dynamic load in N                        ii) Design equivalent dynamic load in N                       iii) Expected life of bearings in hoursarrow_forward
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