Graphite bearings typically do not require the use of lubricating oil because graphite itself possesses excellent self-lubricating properties. Graphite is a solid material with a molecular structure characterized by layered arrangements of carbon atoms, creating sliding surfaces. This enables graphite to form a lubricating film during bearing operation, reducing friction, minimizing wear, and enhancing the bearing’s resistance to abrasion and longevity.
The use of lubricating oil may have adverse effects on graphite bearings. Lubricating oil could hinder the formation of the lubricating film inherent to graphite, resulting in increased friction, heightened wear, and potentially affecting the performance and lifespan of the bearing. Therefore, in the design and application of graphite bearings, it is generally unnecessary to add additional lubricating oil, as the self-lubricating properties of graphite suffice to meet operational requirements.