constant lead screw


constant lead screw
экстр. червяк с резьбой постоянного угла наклона винтовой линии

English-russian plastics terminology dictionary. 2013.

Смотреть что такое "constant lead screw" в других словарях:

  • lead screw — ˈlēd noun : the screw that moves the tool carriage of a lathe when cutting threads compare feed screw * * * /leed/ (on a lathe) a rotating horizontal screw for moving the tool carriage along the work at a constant rate …   Useful english dictionary

  • lead screw — /leed/ (on a lathe) a rotating horizontal screw for moving the tool carriage along the work at a constant rate. * * * …   Universalium

  • lead screw —    A highly accurate screw which is turned at a constant rate to move the optical heads of some laser disk and CD recording machines to produce uniformly spaced spiral tracks …   IT glossary of terms, acronyms and abbreviations

  • machine tool — machine tooled, adj. a power operated machine, as a lathe, used for general cutting and shaping of metal and other substances. [1860 65] * * * Stationary, power driven machine used to cut, shape, or form materials such as metal and wood. Machine… …   Universalium

  • Mechanical pencil — A mechanical pencil (U.S. English) or a propelling pencil (UK English)[1][2][3] is a pencil with a replaceable and mechanically extendable solid pigment core called a lead (  / …   Wikipedia

  • Stepper motor — A stepper motor (or step motor) is a brushless, synchronous electric motor that can divide a full rotation into a large number of steps. The motor s position can be controlled precisely, without any feedback mechanism (see open loop control).… …   Wikipedia

  • Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …   Wikipedia

  • Bearing (mechanical) — A bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as… …   Wikipedia

  • Stephenson valve gear — The Stephenson valve gear or Stephenson link or shifting link [Snell, J B (1971). Mechanical Engineering: Railways, Longman Co, London] is a simple design of valve gear that was widely used throughout the world for all kinds of steam engine. It… …   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

  • printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …   Universalium


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