What are solid lubricants?

The solid lubricant is solid materials that separate and reduce friction between two moving surfaces without a liquid a media and decrease wear and tear.
E.g.: talc, graphite, molybdenum disulfide, Teflon, boron nitride etc. the most commonly used solid lubricant is graphite and molybdenum disulfide.

Solid lubricant

Advantages of solid lubricants:

• Ability to work under high loads.
• High thermal stability.
• The diversity of the application forms.

Disadvantages of solid lubricants:

• Higher coefficient of friction and wear as compared to the hydrodynamic regime.
• Low stability of the lubrication film.
• The less convenient system of the lubricant delivery to the friction surfaces. In contrast to solid lubricants, fluid lubricants are continuously supplied, filtered and cooled.