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

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.

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