The purpose of lubricating rolling bearings is to reduce the internal friction and wear of the bearings and prevent burning and sticking. The lubricating effects are as follows.

⑴. Reduce friction and wear.

In the mutual contact parts of the rings, rolling elements and cages that make up the bearing, metal contact is prevented and friction and wear are reduced.

⑵. Prolong fatigue life.

The rolling fatigue life of the bearing is extended when the rolling contact surface is well lubricated during rotation. Conversely, if the oil viscosity is low and the thickness of the lubricating oil film is not good, it will be shortened.

⑶. Discharge of frictional heat, cooling

Circulating oil supply method, etc. can use oil to discharge heat generated by friction, or heat transmitted from the outside, for cooling. Prevent the bearing from overheating and prevent the lubricating oil itself from aging.

⑷.Other

It also has the effect of preventing foreign matter from intruding into the bearing, or preventing rust and corrosion.