the lubricant inside the bearing can take away most of frictional heat

Describes the importance of imports bearing lubrication and effect
Lubrication of the bearings, in particular, the fatigue life of the rolling bearing and friction, wear, temperature, vibration, etc. have a major impact. Without proper lubrication, the bearings will not work. Analysis to understand: tapered bearing causes of damage showed that about 40% of the bearing damage are related with poor lubrication. Therefore, well lubricated bearings is to reduce bearing friction and wear of effective measures.
Slewing bearing lubrication effects can be briefly described as follows:
1 using oil lubrication, especially the use of circulating oil lubrication, oil mist lubrication and injection lubrication, the lubricant inside the bearing can take away most of frictional heat, serve as an effective heat sink.
2 in the rolling surface contact with each other or the two form a film between the sliding surfaces of the second surface spaced from the contact surface to reduce friction and wear.
3 has to prevent metal corrosion lubricant effect.
4 lubricated with grease, you can prevent external dust and other foreign matter from entering the bearing, and sealing effect.
5 to extend the fatigue life of bearings.