A device contains two bearings is to operate at 300 rev/min, 8 hours per day, 5 days per week for 5 years with a reliability of 0.99. The design load is (2000+N) N and an application factor of 1.2 is appropriate. Find the catalog rating C10 For ball bearings For roller bearings The Weibull parameters are and Use SI units. Take the relations as and Where the subscripts D: desired R: rating f: factor
A device contains two bearings is to operate at 300 rev/min, 8 hours per day, 5 days per week for 5 years with a reliability of 0.99. The design load is (2000+N) N and an application factor of 1.2 is appropriate. Find the catalog rating C10 For ball bearings For roller bearings The Weibull parameters are and Use SI units. Take the relations as and Where the subscripts D: desired R: rating f: factor
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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Question
A device contains two bearings is to operate at 300 rev/min, 8 hours per day, 5 days per week for 5 years with a reliability of 0.99. The design load is (2000+N) N and an application factor of 1.2 is appropriate. Find the catalog rating C10
- For ball bearings
- For roller bearings
The Weibull parameters are and Use SI units. Take the relations as
and
Where the subscripts
D: desired
R: rating
f: factor
![Question:
A device contains two bearings is to operate at 300 rev/min, 8 hours per day, 5 days per week
for 5 years with a reliability of 0.99. The design load is 2000 N and an application factor of 1.2
is appropriate. Find the catalog rating C10
a) For ball bearings
b) For roller bearings
The Weibull parameters are xo = 0.02, (0 – xo) = 4.439, and b = 1.483. Use SI units. Take
the relations as
1/a
Xp
C10 = af Fp
+ (ө — хо)(1 — Rp)4/Ь]
and
Lonp60
Xp =
LR
Where the subscripts
D: desired
R: rating
f: factor](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fae70d7db-ed69-4ed3-a2b0-2ffc68083e6e%2F89c35a9a-1533-4e0d-b61b-efd47581b479%2F7926zld_processed.png&w=3840&q=75)
Transcribed Image Text:Question:
A device contains two bearings is to operate at 300 rev/min, 8 hours per day, 5 days per week
for 5 years with a reliability of 0.99. The design load is 2000 N and an application factor of 1.2
is appropriate. Find the catalog rating C10
a) For ball bearings
b) For roller bearings
The Weibull parameters are xo = 0.02, (0 – xo) = 4.439, and b = 1.483. Use SI units. Take
the relations as
1/a
Xp
C10 = af Fp
+ (ө — хо)(1 — Rp)4/Ь]
and
Lonp60
Xp =
LR
Where the subscripts
D: desired
R: rating
f: factor
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