A Ball bearing subjected to a radial load of 4000 N is expected to have a satisfactorylife of 12 000 hours at 720 r.p.m. with a reliability of 95%. Calculate the dynamic load carrying capacity of the bearing, so that it can be selected from manufacturer’s catalogue based on 90% reliability. If there are four such bearings each with a reliability of 95% in a system, what is the reliability of the complete system?
A Ball bearing subjected to a radial load of 4000 N is expected to have a satisfactorylife of 12 000 hours at 720 r.p.m. with a reliability of 95%. Calculate the dynamic load carrying capacity of the bearing, so that it can be selected from manufacturer’s catalogue based on 90% reliability. If there are four such bearings each with a reliability of 95% in a system, what is the reliability of the complete system?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A Ball bearing subjected to a radial load of 4000 N is expected to have a satisfactorylife of 12 000 hours at 720 r.p.m. with a reliability of 95%. Calculate the dynamic
load carrying capacity of the bearing, so that it can be selected from manufacturer’s
catalogue based on 90% reliability. If there are four such bearings each with a
reliability of 95% in a system, what is the reliability of the complete system?
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