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Engineering · Mechanical Engineering
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Figure 5.1 shows a gear-driven squeeze roll that mate with an idler roll. The roll is designed to exert a normal force of 6.25 N/mm of roll length and pull of 4.25 N/mm on the material being processes. The roll speed is 300 rev/min, and a design life is 40 kilo hours is desired. As an engineer in SKF Company, you are required to select the most suitable 02-series angular contact and deep groove ball bearings to be mounted at A and B respectively for combined reliability of at least 0.95. Use an application factor of 1.5 (15 marks) 50 25 Note: Dimensions in millimeter Figure 5.1 A gear-driven squeeze roll

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