Back gear

Back gear

On a metalworking lathe or milling machine a back gear is a set of gears that reduces the spindle speed in half.


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  • back gear — noun or back gearing : the gearing at the headstock of a lathe for reducing the speed of the spindle from that of the driving pulley • back geared ˈ ̷ ̷| ̷ ̷ adjective * * * backgeared, adj. (in a lathe) one of several gears for driving the… …   Useful english dictionary

  • back gear — backgeared, adj. (in a lathe) one of several gears for driving the headstock at various speeds. * * * …   Universalium

  • back shaft — noun 1. : a countershaft driven by a back gear 2. : any shaft placed at the back of a machine * * * Mach. a spindle carrying back gears. [1875 80] …   Useful english dictionary

  • back-geared — adjective (of a lathe) equipped with gearing for reducing the speed of the spindle from that of the driving pulley a back geared lathe • Syn: ↑double geared • Similar to: ↑geared * * * adjective see back gear …   Useful english dictionary

  • back gearing — noun see back gear …   Useful english dictionary

  • Gear cutting — is any number of methods used to manufacture precision gears.Gear hobbing is a method by which a special hobbing anto cutter and gear blank are rotated at the same time to transfer the profile of the hob onto the gear blank.Spur and other… …   Wikipedia

  • Back-on — Основная информация Жанр J Rock …   Википедия

  • Back-On — Жанры J rock Альтернативный рок Рэп рок Годы 2002 Наше время Страна …   Википедия

  • Back cone distance — in a bevel gear is the distance along an element of the back cone from its apex to the pitch cone. [ ANSI/AGMA 1012 G05 , Gear Nomenclature, Definition of Terms with Symbols .] Notes …   Wikipedia

  • Back angle — Back angle, in a bevel gear, is the angle between an element of the back cone and a plane of rotation, and usually is equal to the pitch angle.1 Notes 1. ANSI/AGMA 1012 G05 , Gear Nomenclature, Definition of Terms with Symbols …   Wikipedia

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