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The worm shaft shown in the figure transmits 1-kW at 500 rev/min. A static force analysis results are also shown in the figure. Bearing A is to be an angular-contact ball bearing mounted to take the 2.75 kN thrust load. The bearing at B is to take only the radial load, so a straight roller bearing will be employed. Use an application factor of 1.2, a desired life of 25 kh, and a combined reliability goal of 0.99. (a)Specify each bearing by giving all required charecteristics.  (b) Determine the radial and thrust components of loads on each bearing.  (c) Make a design assessment for each bearing and of the system.

The worm shaft shown in the figure transmits 1-kW at 500 rev/min. A static force analysis results are also shown in the figure. Bearing A is to be an angular-contact ball bearing mounted to take the 2.75 kN thrust load. The bearing at B is to take only the radial load, so a straight roller bearing will be employed. Use an application factor of 1.2, a desired life of 25 kh, and a combined reliability goal of 0.99. (a)Specify each bearing by giving all required charecteristics.  (b) Determine the radial and thrust components of loads on each bearing.  (c) Make a design assessment for each bearing and of the system.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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The worm shaft shown in the figure transmits 1-kW at 500 rev/min. A static force
analysis results are also shown in the figure. Bearing A is to be an angular-contact ball
bearing mounted to take the 2.75 kN thrust load. The bearing at B is to take only the
radial load, so a straight roller bearing will be employed. Use an application factor of
1.2, a desired life of 25 kh, and a combined reliability goal of 0.99.

(a)Specify each bearing by giving all required charecteristics. 
(b) Determine the radial and thrust components of loads on each bearing. 
(c) Make a design assessment for each bearing and of the system.

 

y. 179 N 333 N 1054 N 179 N 2750 N 358 N 2750 N 720 N
Transcribed Image Text:y. 179 N 333 N 1054 N 179 N 2750 N 358 N 2750 N 720 N
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