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An idler gear is a gear wheel that is inserted between two or more other gear wheels. The purpose of an idler gear can be two-fold. Firstly, the idler gear will change the direction of rotation of the output shaft. Secondly, an idler gear can assist to reduce the size of the input/output gears whilst maintaining the spacing of the shafts.
TX-55 Metal Gear is the Metal Gear model's designation in the original Metal Gear game, [4] although it is simply referred as "Metal Gear" and no particular meaning is given behind this codename. Within Outer Heaven , Solid Snake learns Metal Gear's weakness after rescuing creator Dr. Drago Pettrovich Madnar and his daughter Ellen Madnar.
Meccano is a brand of construction set system created in 1898 by Frank Hornby in Liverpool, England.The system consists of reusable metal strips, plates, angle girders, wheels, axles and gears, and plastic parts that are connected using nuts and bolts.
The opposite effect is obtained when a large gear drives a small one. The changes are proportional to the gear ratio r, the ratio of the tooth counts: namely, T 2 / T 1 = r = N 2 / N 1 , and ω 2 / ω 1 = 1 / r = N 1 / N 2 . Depending on the geometry of the pair, the sense of rotation may also be inverted ...
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 to increase the amount of torque per revolution of a shaft: the gearbox of any car is a ubiquitous example of a reduction drive.
Print advertisement for Erector Set, circa 1922 An early Erector set. Erector Set (trademark styled as "ERECTOR") was a brand of metal toy construction sets which were originally patented by Alfred Carlton Gilbert and first sold by his company, the Mysto Manufacturing Company of New Haven, Connecticut, in 1913.
Western Models – handbuilt 1:43 white metal cars (incl. related brand Small Wheels). Used to provide models to Danhausen. WELLY DIECAST - mass produced diecast model cars and bikes in 1:18, 1:24, 1:32 and 1:43 scale; Werk83 - German diecast model brand founded by CK Models making a variety of modern and classic road and race cars
Therefore, regardless of the worm's size (sensible engineering limits notwithstanding), the gear ratio is the "size of the worm wheel - to - 1". Given a single-start worm, a 20-tooth worm wheel reduces the speed by the ratio of 20:1. With spur gears, a gear of 12 teeth must match with a 240-tooth gear to achieve the same 20:1 ratio.
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