Question

IV. A deep-groove bearing is subjected to a radial load of 25 kN. The expected life is to be 1500-hr at a speed of 2500 rev/min. Assume that the bearing is made by Manufacturer 1 and rated for 90 million revolutions, as shown in Table 2. (a) What basic load rating should be used to select the bearing with a reliability of 0.9? Choose a suitable 02-series deep-groove bearing from Table 3. (b) What basic load rating should be used to select the bearing with a reliability of 0.995? Choose a suitable 02-series deep-groove bearing from Table 3. (c) Estimate the new reliability if a 02-85 mm deep-groove bearing in Table 3 was used.

          IV. A deep-groove bearing is subjected to a radial load of 25 kN. The expected life is to be 1500-hr at a speed of 2500 rev/min. Assume that the bearing is made by Manufacturer 1 and rated for 90 million revolutions, as shown in Table 2.
(a) What basic load rating should be used to select the bearing with a reliability of 0.9? Choose a suitable 02-series deep-groove bearing from Table 3.
(b) What basic load rating should be used to select the bearing with a reliability of 0.995? Choose a suitable 02-series deep-groove bearing from Table 3.
(c) Estimate the new reliability if a 02-85 mm deep-groove bearing in Table 3 was used.

IV. A deep-groove bearing is subjected to a radial load of 25 kN. The expected life is to be 1500-hr at a speed of 2500 rev/min. Assume that the bearing is made by Manufacturer 1 and rated for 90 million revolutions, as shown in Table 2.
(a) What basic load rating should be used to select the bearing with a reliability of 0.9? Choose a suitable 02-series deep-groove bearing from Table 3.
(b) What basic load rating should be used to select the bearing with a reliability of 0.995? Choose a suitable 02-series deep-groove bearing from Table 3.
(c) Estimate the new reliability if a 02-85 mm deep-groove bearing in Table 3 was used.

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