Purposes of Roller Bearing Lubrication

Time：2015.10.16  Source：Roller Bearings Suppliers

The main purposes of lubrication are to reduce friction and wear inside the bearings that may cause premature failure . The effects of lubrication may be briefly explained as follows :

1.Reduction of friction and wear
Direc metallic contact between the bearing rings , rolling elements and cage,which are the basic components of a bearing , is prevented by an oil film which reduces the friction and wear in the contact areas .

2.Extension of fatigue life

The rolling fatigue life of bearings depends greatly upon the viscosity and film thickness between the rolling contact surfaces . A heavy film thickness prolongs the fatigue life , but it is shortened if the viscosity of the oil is too low so the film thickness is insufficient .