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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 usually contains organosulfur compounds. Some modern automatic transaxles (integrated transmission and differential) do not use a heavy oil at all but lubricate with the ...
Automatic transmission fluid (ATF) is a hydraulic fluid that is essential for the proper functioning of vehicles equipped with automatic transmissions. Usually, it is coloured red or green to differentiate it from motor oil and other fluids in the vehicle. This fluid is designed to meet the unique demands of an automatic transmission.
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.
This transmission has a separate oil for the differential in the transmission, so there are two fluid levels to check. The differential fluid is checked by unscrewing the speed sensor gear assembly and use it as a dipstick. The speed sensor gear assembly is located on top of the transmission just above the right inner CV joint.
Oil pump from a scooter engine. A gear pump uses the meshing of gears to pump fluid by displacement. [ 1] They are one of the most common types of pumps for hydraulic fluid power applications. The gear pump was invented around 1600 by Johannes Kepler. [ 2] Gear pumps are also widely used in chemical installations to pump high- viscosity fluids.
Gear housing. The gear housing is a mechanical housing that surrounds the mechanical components of a gear box . It provides mechanical support for the moving components, a mechanical protection from the outside world for those internal components, and a fluid-tight container to hold the lubricant that bathes those components.
Jacking gear. A jacking gear (also known as a turning gear) is a device placed on the main shaft of an engine or the rotor of a turbine. The jacking gear rotates the shaft or rotor and associated machinery (such as reduction gears and main steam or gas turbines ), to ensure uniform cool-down. Without turning, hogging or sagging can occur.
Overdrive (mechanics) An overdrive is sometimes a separate unit that fits into the back of a gearbox, as with this Fairey unit. A plate warns to only engage the unit in third and fourth gears. Overdrive is the operation of an automobile cruising at sustained speed with reduced engine speed (rpm), leading to better fuel consumption, lower noise ...