Analysis,Calculation and Investigation of Minimus Film Thickness of Rolling Bearing

The accurate calculation for the minimum film thicknes of rolling bear is important to the accurate estimates fatigue life of the rolling bear.The parameters that affect film of rolling bear were investigated.The formula of the minimum film thicknes at the contact point of thermal-elastohydrodynamic lubrication were gotten by Matlab regression analysis and significance test for the formula were carried on.It is proved that under certain conditions,this formula is correct and feasible.