Question
Download Solution PDFTwo identical ball bearings P and Q are operating at loads 30 kN and 45 kN respectively. The ratio of the life of bearing P to the life of bearing Q is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Loadlife relationship:
The approximate rating of the service life of a ball or roller bearing is based on the given fundamental equation.
L10 = Rated bearing life (in million revolutions)
C = Dynamic load capacity.
P = Load acting in bearing.
k = 3 for ball bearing and k = 10I3 for the roller bearing.
Calculation:
Given:
PP = 30 kN, QP = 45 kN and k = 3.
∵ the dynamic load capacity of bearing is the same i.e. CP = CQ.
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