universal joint

universal joint
(UJ) A flexible double-pivoted joint that allows driving power to be carried through two shafts that are at an angle to each other. It consists of two Y-shaped yokes and a cross-shaped member called the spider. The four arms of the spider are assembled into bearings in the ends of the two yokes. With the normal cross-and-two-yoke universal joint there is some change in speed when the driveshaft and the driven shaft are at an angle to each other. The change in speed occurs because the driven yoke and driven shaft speed up and then slow down twice with every revolution of the drive line. The greater the angle between the drive and driven shafts, the greater the speed variation. To eliminate this speed variation, which results in increased wear of the affected parts, constant velocity joints are used on many cars. In front drive vehicles, it is called the constant velocity joint. Also called "Hooke joint" or "cardan joint."
See

Dictionary of automotive terms. 2015.

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  • Universal joint — Universal U ni*ver sal, a. [L. universalis: cf. F. universel, OF. also universal. See {Universe}.] 1. Of or pertaining to the universe; extending to, including, or affecting, the whole number, quantity, or space; unlimited; general; all reaching; …   The Collaborative International Dictionary of English

  • Universal joint — Joint Joint (joint), n. [F. joint, fr. joindre, p. p. joint. See {Join}.] [1913 Webster] 1. The place or part where two things or parts are joined or united; the union of two or more smooth or even surfaces admitting of a close fitting or… …   The Collaborative International Dictionary of English

  • universal joint — ► NOUN ▪ a joint which can transmit rotary power by a shaft at any selected angle …   English terms dictionary

  • universal joint — or universal coupling n. a flexible mechanical connection, esp. one used to transmit rotary motion from one shaft to another not in line with it, as in the drive shaft of an automobile …   English World dictionary

  • universal joint — n a part in a machine, at the point where two other parts join together, that can turn in all directions …   Dictionary of contemporary English

  • Universal joint — A universal joint, U joint, Cardan joint, Hardy Spicer joint, or Hooke s joint is a joint in a rigid rod that allows the rod to bend in any direction, and is commonly used in shafts that transmit rotary motion. It consists of a pair of ordinary… …   Wikipedia

  • universal joint — Kardano lankstas statusas T sritis fizika atitikmenys: angl. Cardan joint; Hooke’s coupling; universal joint vok. Kardangelenk, n; Universalgelenk, n; Wellengelenk, n rus. кардан, m; карданный шарнир, m; универсальный шарнир, m pranc. cardan, m;… …   Fizikos terminų žodynas

  • universal joint — noun coupling that connects two rotating shafts allowing freedom of movement in all directions in motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps • Syn: ↑universal • Hypernyms: ↑coupling …   Useful english dictionary

  • Universal Joint Task List — The Universal Joint Task List, more commonly known as UJTL, is a comprehensive list of possible military tasks at the strategic, operationals and (joint) tactical level of war.[1] The UJTL was developed for the U.S. Armed Forces but it has been… …   Wikipedia

  • universal joint socket — A socket with universal joint to reach into cramped working areas …   Dictionary of automotive terms

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