Problem 5.2: An angular-contact, inner ring rotating, 02-series ball bearing is required for an application in which the life requirement is 40 kh at 520 rev/min. The design radial load is 725 lbf. The application factor is 1.4. The reliability goal is 0.90. Find the rating life X required and the catalog rating C10 from Table 11–2. Choose a bearing and estimate the existing reliability in service.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter4: Numerical Analysis Of Heat Conduction
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Problem 5.2:
An angular-contact, inner ring rotating, 02-series ball bearing is required for an application in
which the life requirement is 40 kh at 520 rev/min. The design radial load is 725 lbf. The
application factor is 1.4. The reliability goal is 0.90. Find the rating life X required and the
catalog rating C10 from Table 11–2. Choose a bearing and estimate the existing reliability in
service.
Transcribed Image Text:Problem 5.2: An angular-contact, inner ring rotating, 02-series ball bearing is required for an application in which the life requirement is 40 kh at 520 rev/min. The design radial load is 725 lbf. The application factor is 1.4. The reliability goal is 0.90. Find the rating life X required and the catalog rating C10 from Table 11–2. Choose a bearing and estimate the existing reliability in service.
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