Ball Bearings Fatigue Life and Load Ratings Calculator

Bearings Application Knowledge Menu

Fatigue life calculations assume the dispersion in life of identical ball bearings operating under identical conditions, a statistical result is obtained for bearing fatigue life.

Open Ball Bearings Fatigue Life Calculations and Load Ratings Equations

Variables
Life adjustment Factor for reliability see vendor (a1) =
Life adjustment Factor for Ball Bearing Material (a2) =
Life adjustment Factor for Application Conditions (a2) =
Operating Speed RPM (N) =
Extended Basic Dynamic Load Rating Radial Ball Bearings lbs or N (CE) =
Equivalent Radial Load on Bearing lbs or N (P) =
Dynamic Load rating Adjustment factor for Number of Adjacently Mounted Bearings (fB) =
Results
Life in hours (Ln) =

Automatic recalculation 

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