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2. Dry lubricant - Wikipedia

   en.wikipedia.org/wiki/Dry_lubricant

   The four most commonly used solid lubricants are: Graphite. Used in air compressors, food industry, railway track joints, brass instrument valves, piano actions, open gear, ball bearings, machine-shop works, etc. It is also very common for lubricating locks, since a liquid lubricant allows particles to get stuck in the lock worsening the ...

3. Self-lubricating chain - Wikipedia

   en.wikipedia.org/wiki/Self-lubricating_chain

   Because of these advancements, the self-lubrication style chains achieved strength on par with regular roller chain, with the added benefit of being lube-free. [ citation needed ] Powdered metal sintered bearings (in the case of roller chain, the bushes) are self-lubricating because their porosity is impregnated with lubricants during the ...

4. Gear oil - Wikipedia

   en.wikipedia.org/wiki/Gear_oil

   Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery. It has high viscosity and ...

5. Schaeffer Oil - Wikipedia

   en.wikipedia.org/wiki/Schaeffer_Oil

   The company was the first major lubricant supplier to the global mining industry to introduce solvent free technology for open gear compounds. [citation needed] Schaeffer manufactures biodegradable lubricants and cleaners, [8] designed to dissipate rapidly when spilled into environmentally-sensitive areas.

6. Fluid bearing - Wikipedia

   en.wikipedia.org/wiki/Fluid_bearing

   A lubricant, which must be a viscous fluid. Hydrodynamic flow behavior of fluid between bearing and journal. The surfaces between which the fluid films move must be convergent. Hydrodynamic (full film) lubrication is obtained when two mating surfaces are completely separated by a cohesive film of lubricant.

7. Extreme pressure additive - Wikipedia

   en.wikipedia.org/wiki/Extreme_pressure_additive

   Methylenebis(dibutyldithiocarbamate) is an additive in some extreme pressure gear oils, serving as an antioxidant and protecting metal surfaces. [ 1 ] The early extreme pressure additives were based on lead salts of fatty acids ("lead soaps "), "active sulfur" compounds (e.g. thiols and elementary sulfur), and chlorinated compounds.