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operating pitch diameter

См. также в других словарях:

  • Profile angle — The profile angle of a gear is the angle at a specified pitch point between a line tangent to a tooth surface and the line normal to the pitch surface (which is a radial line of a pitch circle). This definition is applicable to every type of gear …   Wikipedia

  • List of gear nomenclature — Gears have a wide range of unique terminology known as gear nomenclature. Many of the terms defined cite the same reference work.[1] Contents 1 Addendum 2 Addendum angle 3 Addendum circle …   Wikipedia

  • Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… …   Wikipedia

  • Micrometer — This article is about the measuring device. For the unit of length, see Micrometre. Outside, inside, and depth micrometers A micrometer (   …   Wikipedia

  • Adjustable-speed drive — (ASD) or variable speed drive (VSD) describes equipment used to control the speed of machinery. Many industrial processes such as assembly lines must operate at different speeds for different products. Where process conditions demand adjustment… …   Wikipedia

  • Belt (mechanical) — For other belts, see Belt (disambiguation). A pair of vee belts …   Wikipedia

  • Outer Drive Bridge — The double decker Outer Drive Bridge across the Chicago River Carries Motor vehicles, pedestrians Crosses Chicago River …   Wikipedia

  • Pelton wheel — The Pelton wheel is among the most efficient types of water turbines. It was invented by Lester Allan Pelton (1829 1908) in the 1870s, and is an impulse machine, meaning that it uses the principle of Newton s second law to extract energy from a… …   Wikipedia

  • Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… …   Wikipedia

  • Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …   Wikipedia

  • Steam whistle — A steam whistle is a device used to produce sound with the aid of live steam. Unlike a horn, the sounding mechanism of a whistle contains no moving parts (compare to train horn).The whistle consists of the following main parts, as seen on the… …   Wikipedia

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