Lubrication Facts & Knowledge

Most people think engine oil only reduces friction, but it also acts as a sound dampener. A thin film of oil between metal parts absorbs vibrations and prevents them from creating loud...

In coal mines and steel mills, standard hydraulic oil can become a deadly fire hazard when high-pressure lines rupture near hot surfaces. Fire-resistant hydraulic fluids use water-based emulsions or synthetic esters that won't ignite even at temperatures exceeding 600°C. Aircraft...

Car brake fluid is hygroscopic, meaning it naturally absorbs moisture from the air over time. Even in a sealed system, brake fluid can absorb 2-3% water within two years, which lowers its boiling point from around 230°C to...

Old manual typewriters contain hundreds of moving parts that require careful lubrication to maintain smooth key action. However, applying too much oil is a common mistake that actually makes typing worse by attracting dust and lint that gums...

The oil used in power plant steam turbines must be extraordinarily clean, often filtered to remove particles smaller than a human red blood cell. Even microscopic contamination can cause catastrophic damage when turbine blades spin at thousands of revolutions per minute. A single...

Mechanics sometimes place a drop of used engine oil on paper towel and let it dry overnight. The oil spreads in rings, with heavy particles staying in the center while...

The grease inside cordless drills and impact drivers can reach temperatures of 200°F (93°C) during heavy use, which is why manufacturers use special high-temperature greases. Regular household greases would break down and leak out of the gearbox within minutes under these conditions. This...

When ice skaters glide, the pressure and friction from the blade actually melts a microscopic layer of ice beneath it, creating a self-lubricating water film. This natural lubricant lets skaters reach speeds over 50 km/h with minimal...

A typical lawn mower engine holds less than half a liter of oil but spins at over 3,000 RPM while running much hotter than car engines due to air cooling. The oil must protect engine parts in extreme heat with minimal cooling assistance, which is why using the wrong...

Researchers are developing lubricants from ionic liquids, which are salts that remain liquid at room temperature. Unlike traditional oils made from hydrocarbon chains, these liquids are made entirely of charged particles that conduct electricity....