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searchaux" style="display:none">Mechanical drive belt</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For the automotive part, see <a href="/wiki/Timing_belt_(camshaft)" title="Timing belt (camshaft)">Timing belt (camshaft)</a>.</div> <p><br /> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Dragster_Kompressor_2005.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Dragster_Kompressor_2005.jpg/220px-Dragster_Kompressor_2005.jpg" decoding="async" width="220" height="215" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Dragster_Kompressor_2005.jpg/330px-Dragster_Kompressor_2005.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/52/Dragster_Kompressor_2005.jpg/440px-Dragster_Kompressor_2005.jpg 2x" data-file-width="640" data-file-height="624" /></a><figcaption>Supercharger drive belt in a dragster</figcaption></figure> <p>A <b>toothed belt</b>, <b>timing belt</b>, <b>cogged belt</b>, <b>cog belt</b>, or <b>synchronous belt</b> is a flexible belt with teeth moulded onto its inner surface. Toothed belts are usually designed to run over matching toothed pulleys or <a href="/wiki/Sprocket" title="Sprocket">sprockets</a>. Toothed belts are used in a wide array of mechanical devices where high power transmission is desired. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Design_and_application">Design and application</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Toothed_belt&action=edit&section=1" title="Edit section: Design and application"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Timing belts</i>,<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <i>toothed belts</i>,<sup id="cite_ref-Gates,_patent_2-0" class="reference"><a href="#cite_note-Gates,_patent-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> <i>cogged</i> or <i>cog belts</i>,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> and <i>synchronous belts</i><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> are non-slipping mechanical <a href="/wiki/Drive_belt" class="mw-redirect" title="Drive belt">drive belts</a>. They are made as flexible belts with teeth moulded onto their inner surface. The belts run over matching toothed pulleys or sprockets.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> When correctly tensioned, these type of belts have no slippage, and are often used to transfer motion for indexing or timing purposes (hence their name). They are often used in lieu of chains or gears, so there is less noise and a lubrication bath is not necessary. </p><p>Toothed belts are used widely in mechanical devices, including <a href="/wiki/Sewing_machine" title="Sewing machine">sewing machines</a>, <a href="/wiki/Photocopier" title="Photocopier">photocopiers</a> and many others. A major use of toothed belts is as the <a href="/wiki/Timing_belt_(camshaft)" title="Timing belt (camshaft)">timing belt</a> used to drive the <a href="/wiki/Camshaft" title="Camshaft">camshafts</a> within an <a href="/wiki/Internal_combustion_piston_engine" class="mw-redirect" title="Internal combustion piston engine">automobile</a> or motorcycle engine. </p><p>As toothed belts can deliver more power than a friction-drive belt, they are used for high-power transmissions. These include the <a href="/wiki/Primary_drive_(motorcycle)" class="mw-redirect" title="Primary drive (motorcycle)">primary drive</a> of some <a href="/wiki/Motorcycle" title="Motorcycle">motorcycles</a>, notably later <a href="/wiki/Harley-Davidson" title="Harley-Davidson">Harley-Davidsons</a>; and the <a href="/wiki/Roots_supercharger" class="mw-redirect" title="Roots supercharger">supercharger</a> used for <a href="/wiki/Drag_racing" title="Drag racing">dragsters</a>. </p><p><a href="/wiki/Microlight" class="mw-redirect" title="Microlight">Microlight</a> aircraft driven by high-speed <a href="/wiki/Two-stroke_engine" title="Two-stroke engine">two-stroke engines</a> such as the <a href="/wiki/Rotax_532" title="Rotax 532">Rotax 532</a> use toothed belt reduction drives to allow the use of a quieter and more efficient slower-speed propeller. Some amateur-built airplanes powered by automotive engines use cog belt reduction drive units.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Other_names">Other names</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Toothed_belt&action=edit&section=2" title="Edit section: Other names"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span class="anchor" id="Gilmer_belt"></span> A <i>gilmer belt</i> was a brand or trade name for a <a href="/wiki/Belt_(mechanical)" title="Belt (mechanical)">mechanical belt</a> used for transferring power between <a href="/wiki/Axle" title="Axle">axles</a> in a <a href="/wiki/Machine" title="Machine">machine</a>. The gilmer belt was originally sold by the L. H. Gilmer company after 1949,<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> and represents one of the earliest toothed belt designs. Gilmer belts use trapezoidal teeth to engage matching grooves on toothed pulleys in order to maintain synchronicity between moving parts.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> Belts are no longer sold under the Gilmer name, although enthusiasts are still likely to refer to toothed belts by the gilmer name.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Fabrication">Fabrication</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Toothed_belt&action=edit&section=3" title="Edit section: Fabrication"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Toothed belts are made of a flexible polymer over a fabric reinforcement. Originally this was rubber over a natural textile, but developments in material science have had a substantial effect in increasing the lifetime of these belts. This included changes from <a href="/wiki/Natural_rubber" title="Natural rubber">natural</a> to <a href="/wiki/Synthetic_rubber" title="Synthetic rubber">synthetic rubber</a> and <a href="/wiki/Polyurethane" title="Polyurethane">polyurethane</a> and also the adoption of <a href="/wiki/Steel" title="Steel">steel</a>, <a href="/wiki/Nylon" title="Nylon">nylon</a>, <a href="/wiki/Kevlar" title="Kevlar">Kevlar</a> (or other <a href="/wiki/Aramid" title="Aramid">aramid</a> fibres), and/or <a href="/wiki/Carbon_fibre" class="mw-redirect" title="Carbon fibre">carbon fibres</a> in their reinforcement.<sup id="cite_ref-Gates,_patent_2-1" class="reference"><a href="#cite_note-Gates,_patent-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Belt_failure">Belt failure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Toothed_belt&action=edit&section=4" title="Edit section: Belt failure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:2001_honda_accord_timing_belt-terabass.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/2001_honda_accord_timing_belt-terabass.jpg/220px-2001_honda_accord_timing_belt-terabass.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/2001_honda_accord_timing_belt-terabass.jpg/330px-2001_honda_accord_timing_belt-terabass.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/2001_honda_accord_timing_belt-terabass.jpg/440px-2001_honda_accord_timing_belt-terabass.jpg 2x" data-file-width="3888" data-file-height="2592" /></a><figcaption>A new belt, already damaged by knotting</figcaption></figure> <p>Toothed belts have two failure modes, one gradual and one <a href="/wiki/Catastrophic_failure" title="Catastrophic failure">catastrophic</a>. There is an increased risk of either over the lifetime of the belt, so it is common for highly-stressed belts to be given a <a href="/wiki/Service_life" title="Service life">service lifetime</a> and to be replaced before this failure can occur. </p><p>One failure mode is gradual wear to the tooth shape, which may eventually lead to slippage over rounded teeth. The belt often continues to work, but the relative timing between shafts changes. </p><p>The catastrophic failure mode is caused by <a href="/wiki/Delamination" title="Delamination">delamination</a> between the belt and its fabric reinforcement. Although this may be caused by age and wear, it is often accelerated by mistreatment of the belt, often during initial installation. Overloading the belt by bending it to a narrow radius is a common cause of damage, either by bending out of the belt's designed axis, twisting, levering it into place with tools, bending in the correct axis but to too small a radius, or even <a href="/wiki/Knot" title="Knot">knotting</a> a belt in storage. Another cause, particularly with natural rubber belts, is contamination by oil, especially to the edges where the reinforcing fabric is exposed and can cause a wick effect. </p><p>It is extremely rare for a timing belt to break. More common is for the belt to delaminate, disconnecting the fabric <a href="/w/index.php?title=Strength_member&action=edit&redlink=1" class="new" title="Strength member (page does not exist)">strength member</a> from the teeth that ride on the pulleys. The belt is then often thrown from the pulleys and may be further damaged, cut, or break. Although worn teeth may be detectable by careful inspection, internal deterioration is not considered to be reliably detectable and so the observance of service lifetimes is important. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Toothed_belt&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Polygroove_belt" class="mw-redirect" title="Polygroove belt">Polygroove belt</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Toothed_belt&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.huco.com/products.asp?cat=313">"Huco Timing Belts and Pulleys"</a>. Huco Dynatork.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Huco+Timing+Belts+and+Pulleys&rft.pub=Huco+Dynatork&rft_id=http%3A%2F%2Fwww.huco.com%2Fproducts.asp%3Fcat%3D313&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-Gates,_patent-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-Gates,_patent_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Gates,_patent_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1041539562">.mw-parser-output .citation{word-wrap:break-word}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}</style><span class="citation patent"><a rel="nofollow" class="external text" href="https://worldwide.espacenet.com/textdoc?DB=EPODOC&IDX=US5807194">US patent 5807194</a>, "Toothed belt", published 15 September 1998,  assigned to <a href="/wiki/Gates_Corporation" title="Gates Corporation">Gates Corporation</a></span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.number=5807194&rft.cc=US&rft.title=Toothed+belt&rft.assignee=%5B%5BGates+Corporation%5D%5D&rft.pubdate=15 September 1998"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text">in <i>Contact !</i>, Experimental Aircraft and Powerplant Newsforum for Designers and Builders, n°55, Dieselis Aircraft, A Prototype Aircraft with a Diesel Engine</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.gates.com/brochure.cfm?brochure=7913&location_id=11543">"PowerGrip HTD and timing synchronous belts"</a>. <a href="/wiki/Gates_Corporation" title="Gates Corporation">Gates Corporation</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=PowerGrip+HTD+and+timing+synchronous+belts&rft.pub=Gates+Corporation&rft_id=http%3A%2F%2Fwww.gates.com%2Fbrochure.cfm%3Fbrochure%3D7913%26location_id%3D11543&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.clarks-garage.com/shop-manual/eng-10.htm">"ENG-10, Camshaft (Timing) Belt and Balance Shaft Belt Tension - Checking and Adjusting"</a>. Clarks Garage<span class="reference-accessdate">. Retrieved <span class="nowrap">2014-02-27</span></span>. <q>This should be checked at the midpoint between the cam sprocket and the crankshaft sprocket.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=ENG-10%2C+Camshaft+%28Timing%29+Belt+and+Balance+Shaft+Belt+Tension+-+Checking+and+Adjusting&rft.pub=Clarks+Garage&rft_id=http%3A%2F%2Fwww.clarks-garage.com%2Fshop-manual%2Feng-10.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.allpar.com/fix/timing-belt-22.html">"Replacing Chrysler 2.2 and 2.5 liter engine timing belts"</a>. AllPar<span class="reference-accessdate">. Retrieved <span class="nowrap">2014-02-27</span></span>. <q>Sprockets on the cam and intermediate shaft are twice the diameter of the sprocket on the crank, so for every two turns of the crankshaft the cam and intermediate shaft is turned one time.</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Replacing+Chrysler+2.2+and+2.5+liter+engine+timing+belts&rft.pub=AllPar&rft_id=http%3A%2F%2Fwww.allpar.com%2Ffix%2Ftiming-belt-22.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.pfeiferindustries.com/timing-belt-pulley-pitch-diameter-outside-diameter-charts-i-12-l-en.html">"Timing Belt Pulley Pitch Diameter & Outside Diameter Charts"</a>. Pfeifer Industries<span class="reference-accessdate">. Retrieved <span class="nowrap">2014-02-27</span></span>. <q>sprocket pitch circle</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Timing+Belt+Pulley+Pitch+Diameter+%26+Outside+Diameter+Charts&rft.pub=Pfeifer+Industries&rft_id=http%3A%2F%2Fwww.pfeiferindustries.com%2Ftiming-belt-pulley-pitch-diameter-outside-diameter-charts-i-12-l-en.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text">For example : <a href="/wiki/Bede_BD-5" title="Bede BD-5">Bede BD-5</a>, Dieselis aircraft <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://archive.today/20130701233949/http://membres.multimania.fr/dieselis/gb2.htm">"DslGB001"</a>. Archived from <a rel="nofollow" class="external text" href="http://membres.multimania.fr/dieselis/gb2.htm">the original</a> on 2013-07-01<span class="reference-accessdate">. Retrieved <span class="nowrap">2013-05-12</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=DslGB001&rft_id=http%3A%2F%2Fmembres.multimania.fr%2Fdieselis%2Fgb2.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span>, and <a href="/wiki/Pennec_Gaz%27Aile_2" title="Pennec Gaz'Aile 2">Pennec Gaz'Aile 2</a></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20160809044413/http://ww2.gates.com/IF/facts/documents/Gf000191.pdf"><i>Synchronous Belts - Part 1</i></a> <span class="cs1-format">(PDF)</span>, Gates Rubber Company, archived from <a rel="nofollow" class="external text" href="http://ww2.gates.com/IF/facts/documents/Gf000191.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2016-08-09</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Synchronous+Belts+-+Part+1&rft.pub=Gates+Rubber+Company&rft_id=http%3A%2F%2Fww2.gates.com%2FIF%2Ffacts%2Fdocuments%2FGf000191.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20101124085506/http://iskycams.com/glossary.php"><i>Definition of a Gilmer belt</i></a>, Isky Racing Cams, archived from <a rel="nofollow" class="external text" href="http://www.iskycams.com/glossary.php#G">the original</a> on 2010-11-24<span class="reference-accessdate">, retrieved <span class="nowrap">2011-01-16</span></span></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Definition+of+a+Gilmer+belt&rft.pub=Isky+Racing+Cams&rft_id=http%3A%2F%2Fwww.iskycams.com%2Fglossary.php%23G&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://www.nytimes.com/1986/05/22/business/uniroyal-to-sell-unit-to-gates.html">"Uniroyal to Sell Unit to Gates"</a>, <i>The New York Times</i>, 1986-05-22</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+New+York+Times&rft.atitle=Uniroyal+to+Sell+Unit+to+Gates&rft.date=1986-05-22&rft_id=https%3A%2F%2Fwww.nytimes.com%2F1986%2F05%2F22%2Fbusiness%2Funiroyal-to-sell-unit-to-gates.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AToothed+belt" class="Z3988"></span></span> </li> </ol></div></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist 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components</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chassis" title="Chassis">Chassis</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Motorcycle_frame" title="Motorcycle frame">Frame</a></li> <li><a href="/wiki/Suspension_(motorcycle)" class="mw-redirect" title="Suspension (motorcycle)">Suspension</a></li> <li><a href="/wiki/Motorcycle_fork" title="Motorcycle fork">Fork</a></li> <li><a href="/wiki/Swingarm" title="Swingarm">Swingarm</a></li> <li><a href="/wiki/Motorcycle_wheel" title="Motorcycle wheel">Wheels</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="5" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Absbrakes.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/12/Absbrakes.jpg/250px-Absbrakes.jpg" decoding="async" width="250" height="127" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/12/Absbrakes.jpg/375px-Absbrakes.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/12/Absbrakes.jpg/500px-Absbrakes.jpg 2x" data-file-width="600" data-file-height="305" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Motorcycle_engine" title="Motorcycle engine">Engine</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Layouts_(common)" scope="row" class="navbox-group" style="width:1%">Layouts (common)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Single-cylinder_engine" title="Single-cylinder engine">Single</a></li> <li><a href="/wiki/Straight-twin_engine" title="Straight-twin engine">Parallel twin</a></li> <li><a href="/wiki/V-twin_engine" title="V-twin engine">V-twin</a></li> <li><a href="/wiki/Flat_twin_engine" class="mw-redirect" title="Flat twin engine">Flat twin (boxer)</a></li> <li><a href="/wiki/Straight-three_engine" title="Straight-three engine">Triple</a></li> <li><a href="/wiki/Inline-four_engine" class="mw-redirect" title="Inline-four engine">Inline-four</a></li> <li><a href="/wiki/V4_engine" title="V4 engine">V4</a></li> <li><a href="/wiki/Flat-four_engine" title="Flat-four engine">Flat-four</a></li> <li><a href="/wiki/Straight-six_engine" title="Straight-six engine">Straight-six</a></li> <li><a href="/wiki/Flat-six_engine" title="Flat-six engine">Flat-six</a></li> <li><a href="/wiki/V8_engine" title="V8 engine">V8</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Layouts (other)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rotary-engine#Use_in_cars_and_motorcycles" class="mw-redirect" title="Rotary-engine">Rotary piston</a></li> <li><a href="/wiki/MTT_Turbine_Superbike" title="MTT Turbine Superbike">Turbine</a></li> <li><a href="/wiki/Wankel_engine#Motorcycle_engines" title="Wankel engine">Wankel (rotary)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Energy source</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Diesel_motorcycle" title="Diesel motorcycle">Diesel</a></li> <li><a href="/wiki/Electric_motorcycles_and_scooters" title="Electric motorcycles and scooters">Electric</a></li> <li><a href="/wiki/Petrol_engine" title="Petrol engine">Gasoline (petrol)</a></li> <li><a href="/wiki/Hydrogen_vehicle#Motorcycles_and_scooters" title="Hydrogen vehicle">Hydrogen fuel cell</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Motorcycle_transmission" title="Motorcycle transmission">Transmission</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Manual</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sequential_manual_transmission" title="Sequential manual transmission">Sequential manual transmission</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Automatic</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Continuously_variable_transmission" title="Continuously variable transmission">Continuously variable transmission</a></li> <li><a href="/wiki/Dual-clutch_transmission" title="Dual-clutch transmission">Dual-clutch transmission</a></li> <li><a href="/wiki/Semi-automatic_transmission#Motorcycles" title="Semi-automatic transmission">Semi-automatic</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Clutch#Motorcycles" title="Clutch">Clutch</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Slipper_clutch" title="Slipper clutch">Slipper</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Final drive</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chain_drive" title="Chain drive">Chain drive</a></li> <li><a href="/wiki/Gilmer_belt" class="mw-redirect" title="Gilmer belt">Belt drive</a></li> <li><a href="/wiki/Drive_shaft" title="Drive shaft">Shaft drive</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Motorcycle_accessories" title="Motorcycle accessories">Accessories</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Motorcycle_fairing" title="Motorcycle fairing">Fairing</a></li> <li><a href="/wiki/Pannier#Motorcycle_panniers" title="Pannier">Pannier</a></li> <li><a href="/wiki/Sidecar" title="Sidecar">Sidecar</a></li> <li><a href="/wiki/Motorcycle_trailer" title="Motorcycle trailer">Trailer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disc_brake#On_motorcycles" title="Disc brake">Disc brake</a></li> <li><a href="/wiki/Drum_brake" title="Drum brake">Drum brake</a></li> <li><a href="/wiki/Motorcycle_saddle" class="mw-redirect" title="Motorcycle saddle">Saddle</a></li> <li><a href="/wiki/Motorcycle_tyre" title="Motorcycle tyre">Tires</a></li> <li><a href="/wiki/Traction_control_system" title="Traction control system">Traction control system</a></li> <li><a href="/wiki/Anti-lock_braking_system" title="Anti-lock braking system">Anti-lock braking system</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div><div style="float:right; margin:0 1.0em;"><b><a href="/wiki/Outline_of_motorcycles_and_motorcycling" title="Outline of motorcycles and motorcycling">Outline of motorcycles and motorcycling</a></b></div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" 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