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Bearing Parameters & Operating Conditions
āŖ Ball Bearing (p=3)
š Roller Bearing (p=10/3)
Bearing Life Analysis
Standard L10 Life Ā· Ball Bearing
LIVE
Basic Rating Life L10
0
hours
L10 (millions of rev)
0
10ā¶ rev
Adjusted Life Lnm
0
hours
Life at Selected Reliability
0
hours
š L10 Life Formula: Lāā = (C/P)įµ million revolutions ā¢ Ball bearings: p=3 ā¢ Roller bearings: p=10/3 ā 3.33
Adjusted Life: Lnm = aā Ć aā Ć aā Ć Lāā ā¢ aā: reliability factor ā¢ aā: material/operating ā¢ aā: lubrication
Adjusted Life: Lnm = aā Ć aā Ć aā Ć Lāā ā¢ aā: reliability factor ā¢ aā: material/operating ā¢ aā: lubrication
Why Bearing Life Calculation Matters
Every rotating machine depends on bearing life prediction. The L10 life is the number of hours that 90% of a group of identical bearings will exceed under given load conditions. ISO 281 provides the standard method using the basic rating life equation Lāā = (C/P)įµ.
The adjusted life Lnm accounts for modern bearing materials, improved lubrication, and operating conditions. Use this calculator to select bearings that match your design life requirements.
ā Vaibhav Dhokpande, Developer Ā· TaskJunction