pulley gear

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• Gear ratio — The gear ratio is the relationship between the number of teeth on two gears that are meshed or two sprockets connected with a common roller chain, or the circumferences of two pulleys connected with a drive belt. General description In the… …   Wikipedia

• Pulley — For the band, see Pulley (band). For the village, see Pulley, Shropshire. For the American photographer, see Gerald P. Pulley. Pulley Pulleys on a ship. In this context, pulleys are usually known as blocks. Classification …   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

• Overrunning alternator pulley — During normal operation alternator pulleys can rotate at up to 18,000rpm and coupled with rapid acceleration and deceleration can lead to premature alternator, pulley and drive belt failure. To prevent this Overrunning Alternator Pulleys (OAPs)… …   Wikipedia

• Bull gear — The term bull gear is used to refer to the larger of two spur gears that are in engagement in any machine. The smaller gear is usually referred to as a pinion.LatheOn a lathe a bull gear is a gear which allows one to connect the spindle to the… …   Wikipedia

• Idle pulley — Idle I dle, a. [Compar. {Idler}; superl. {Idlest}.] [OE. idel, AS. [=i]del vain, empty, useless; akin to OS. [=i]dal, D. ijdel, OHG. [=i]tal vain, empty, mere, G. eitel, Dan. & Sw. idel mere, pure, and prob. to Gr. ? clear, pure, ? to burn. Cf.… …   The Collaborative International Dictionary of English

• Friction gear — Friction Fric tion, n. [L. frictio, fr. fricare, frictum,to rub: cf. F. friction. See {Fray} to rub, arid cf. {Dentifrice}.] 1. The act of rubbing the surface of one body against that of another; attrition; in hygiene, the act of rubbing the body …   The Collaborative International Dictionary of English

• Eccentric pulley — Eccentric Ec*cen tric ([e^]k*s[e^]n tr[i^]k), a. [F. excentrique, formerly also spelled eccentrique, fr. LL. eccentros out of the center, eccentric, Gr. e kkentros; ek out of + ke ntron center. See {Ex }, and {Center}, and cf. {Excentral}.] 1.… …   The Collaborative International Dictionary of English

• jockey pulley — [1] On a bicycle, the pulley in a rear derailleur that stays closest to the freewheelcogs and guides the chain from cog to cog during a gear shift. [2] A free turning, spring loaded idler used to keep tension on the timing belt. Also called… …   Dictionary of automotive terms

• Eccentric gear — Eccentric Ec*cen tric ([e^]k*s[e^]n tr[i^]k), a. [F. excentrique, formerly also spelled eccentrique, fr. LL. eccentros out of the center, eccentric, Gr. e kkentros; ek out of + ke ntron center. See {Ex }, and {Center}, and cf. {Excentral}.] 1.… …   The Collaborative International Dictionary of English

• 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