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Non-circular gear example Another non-circular gear. A non-circular gear (NCG) is a special gear design with special characteristics and purpose. While a regular gear is optimized to transmit torque to another engaged member with minimum noise and wear and with maximum efficiency, a non-circular gear's main objective might be ratio variations, axle displacement oscillations and more.
The layshaft is the gear-carrying shaft that links the wallower (the small spur gear driven at increased speed by the waterwheel) to any upright shafts that carry the millstones. The term, layshaft, was also used by millwrights , in both wind- and watermills, to refer to a shaft that drove secondary machinery such as sack hoists, rather than ...
The large gears in timepieces are generally called wheels, the smaller gears they mesh with (large to small, large to small) are called pinions, and the shafts that the wheels and pinions are mounted on are called arbors. [3] The wheels are mounted between the plates of the movement, with the pivots rotating in holes in the plates. The pivot ...
The shape of a hypoid gear is a revolved hyperboloid (that is, the pitch surface of the hypoid gear is a hyperbolic surface), whereas the shape of a spiral bevel gear is normally conical. The hypoid gear places the pinion off-axis to the crown wheel (ring gear) which allows the pinion to be larger in diameter and have more contact area. In ...
the typically smaller gear in a gear drive train (although in the first commercially successful steam locomotive—the Salamanca—the pinion was rather large). [1] In many cases, such as remote controlled toys , the pinion is also the drive gear for a reduction in speed, since electric motors operate at higher speed and lower torque than ...
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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.
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