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2. Gear oil - Wikipedia

   en.wikipedia.org/wiki/Gear_oil

   Gear oils account for about 20% of the lubricant market. [1] Most lubricants for manual gearboxes and differentials contain extreme pressure (EP) additives and antiwear additives to cope with the sliding action of hypoid bevel gears. Typical additives include dithiocarbamate derivatives and sulfur-treated organic compounds ("sulfurized ...

3. 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.

4. Dry lubricant - Wikipedia

   en.wikipedia.org/wiki/Dry_lubricant

   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 problem. It is often used to lubricate the internal ...

5. 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.

6. Oil pump (internal combustion engine) - Wikipedia

   en.wikipedia.org/wiki/Oil_pump_(internal...

   Gear pumps [1] [2] trochoid pumps [3] and vane pumps [a] are all commonly used. Plunger pumps have been used in the past, but these are now only used rarely, for small engines. To avoid the need for priming, the pump is always mounted low-down, either submerged or around the level of the oil in the sump. A short pick-up pipe with a simple wire ...

7. NLGI consistency number - Wikipedia

   en.wikipedia.org/wiki/NLGI_consistency_number

   Examples include enclosed gear drives operating at low speeds and open gearing. Grades 0, 1 and 2 are used in highly loaded gearing. Grades 1 through 4 are often used in rolling contact bearings. Greases with a higher number are firmer, tend to stay in place and are a good choice when leakage is a concern.