Lubrication mode of roller bearing

Lubrication is of great significance for bearings. The lubricant in bearings can not only reduce friction resistance, but also play the role of heat dissipation, reduce contact stress, absorb vibration and prevent corrosion.

The common lubrication methods of bearings are oil lubrication and grease lubrication. In addition, it is lubricated with solid lubricant. The choice of lubrication depends on the speed of the bearing. Generally, the DN value of the bearing (D is the inner diameter of the bearing, mm; n is the speed of the bearing, r/min) is used to express the speed of the bearing.