shaft reduction
1Reduction drive — A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small scale version using ball bearings in an epicyclic arrangement instead of toothed gears.Reduction drives are used in engines of all kinds,… …
2reduction gear — noun a system of gearwheels in which the driven shaft rotates more slowly than the driving shaft …
3Drive shaft — This article is about the mechanical device. For the fictional music group from the American television series Lost , see Charlie Pace. Not to be confused with Axle. Drive shaft with universal joints at each end and a spline in the centre A drive …
4Lithic reduction — The Levallois technique of flint knapping Lithic reduction involves the use of a hard hammer precursor, such as a hammerstone, a soft hammer fabricator (made of wood, bone or antler), or a wood or antler punch to detach lithic flakes from a lump… …
5quill shaft — i. A long, thin, hardened steel shaft with splines on each end that connects the engine to the generator. ii. A form of torsional vibration damper used between the engine crankshaft and the propeller reduction gear. iii. A slim driveshaft or… …
6single-shaft turboprop engine — A turboprop engine in which the propeller reduction gears are driven by the same shaft that drives the compressor for the gas generator. See geared engine …
7iron processing — Introduction use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a… …
8metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
9tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
10Overdrive (mechanics) — For other uses, see Overdrive. 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 …
