Calculating Bearing Temperature with Empirical Cooling Factor

AI Thread Summary
To calculate bearing temperature for a rotating shaft, the cooling factor is essential but often missing from bearing catalogs. This cooling factor is typically an empirical value derived from manufacturer testing, influenced by loading, lubrication, and mounting fits. For accurate results, contacting the bearing manufacturer is recommended. Additionally, converting power loss due to friction into temperature requires specific empirical formulas, which may not account for lubrication effects. Understanding these factors is crucial for precise temperature calculations in bearing applications.
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Dear all
I need to calculate bearing Temperature for the shaft rotating of certain rpm.
Bearing catalog referred and found that cooling factor is missing to arrive final result.
How to find cooling factor?any empherical procedures?standards?sites? If so pl guide me to get the result.

Thanks
Prakash
 
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That information is almost always an empirical number derived from manufacturer testing. You would need to contact the bearing manufacturer because it will depend on things like loading, lubrication and mounting fits.
 
FredGarvin said:
That information is almost always an empirical number derived from manufacturer testing. You would need to contact the bearing manufacturer because it will depend on things like loading, lubrication and mounting fits.

Thanks Mr.Fredgarvin

Ok have you any idea to convert the power loss (due to friction)to temperature.
i.e.assume that 10 watts power is loss what will be the corresponding temperature induced (without accounting lubrication factor i.e.cooling factor)

thanks in advance
Prakash
 
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