Why are oilless bearings oilless?  (oilless Bearings = oilless Bushing)

Oilless bearing is a kind of product with self-lubricating property.

Appropriate size holes are developed and well-arranged on the friction surface of copper-bearing as a metal matrix, and graphite or molybdenum disulfide are embedded as a solid lubricant. 

This rational combination combines the respective performance advantages of metal alloys and non-metallic friction-reducing materials to complement each other.

It not only has the high bearing capacity of the metal but also has the lubrication property of the anti-wear material.

So oilless bearing is especially suitable for the environment like no refueling, less refueling, high temperature, high load, and water environment.

Application of oilless bearing :

● It is difficult to form lubricating oil film under low speed and heavy load.

● Bad environment, limited structure, not easy to add lubricating oil.

● The large temperature difference in the working environment.

● The maintenance is difficult and the long life of the bearing is required.

● When used in corrosive media.

● When impact load is easy to occur.