RIGHT)^n}\)L10 = Rated bearing life (in million revolutions), C = Dynamic load-carrying CAPACITY, P = Load acting on the bearingn = 3 for ball bearing and n = 10/3 for roller bearing.Calculation:Given:PP = 30 KN, PQ = 45 kN, n = 3 (∵ ball bearing) and CP = CQ (∵ identical bearing).\({L_{10}} = {\left( {\frac{C}{P}} \right)^n}\)\(\therefore \frac{{{L_P}}}{{{L_Q}}} = {\left( {\frac{{{P_Q}}}{{{P_P}}}} \right)^3} \Rightarrow {\left( {\frac{{45}}{{30}}} \right)^3} = {\left( {\frac{3}{2}} \right)^3} \Rightarrow \frac{{27}}{8}\)

"> RIGHT)^n}\)L10 = Rated bearing life (in million revolutions), C = Dynamic load-carrying CAPACITY, P = Load acting on the bearingn = 3 for ball bearing and n = 10/3 for roller bearing.Calculation:Given:PP = 30 KN, PQ = 45 kN, n = 3 (∵ ball bearing) and CP = CQ (∵ identical bearing).\({L_{10}} = {\left( {\frac{C}{P}} \right)^n}\)\(\therefore \frac{{{L_P}}}{{{L_Q}}} = {\left( {\frac{{{P_Q}}}{{{P_P}}}} \right)^3} \Rightarrow {\left( {\frac{{45}}{{30}}} \right)^3} = {\left( {\frac{3}{2}} \right)^3} \Rightarrow \frac{{27}}{8}\)

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Two 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

General Knowledge General Awareness in General Knowledge 9 months ago

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Concept:Load-Life relationship of a Bearing:\({L_{10}} = {\left( {\frac{C}{P}} \RIGHT)^n}\)L10 = Rated bearing life (in million revolutions), C = Dynamic load-carrying CAPACITY, P = Load acting on the bearingn = 3 for ball bearing and n = 10/3 for roller bearing.Calculation:Given:PP = 30 KN, PQ = 45 kN, n = 3 (∵ ball bearing) and CP = CQ (∵ identical bearing).\({L_{10}} = {\left( {\frac{C}{P}} \right)^n}\)\(\therefore \frac{{{L_P}}}{{{L_Q}}} = {\left( {\frac{{{P_Q}}}{{{P_P}}}} \right)^3} \Rightarrow {\left( {\frac{{45}}{{30}}} \right)^3} = {\left( {\frac{3}{2}} \right)^3} \Rightarrow \frac{{27}}{8}\)

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Posted on 09 Nov 2024, this text provides information on General Knowledge related to General Awareness in General Knowledge. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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