{"id":15121,"date":"2023-08-25T14:03:52","date_gmt":"2023-08-25T14:03:52","guid":{"rendered":"https:\/\/www.motointegrator.fr\/blog\/?p=15121"},"modified":"2025-09-25T06:14:57","modified_gmt":"2025-09-25T06:14:57","slug":"role-et-structure-du-vilebrequin","status":"publish","type":"post","link":"https:\/\/www.motointegrator.fr\/blog\/role-et-structure-du-vilebrequin\/","title":{"rendered":"R\u00f4le et structure du vilebrequin expliqu\u00e9s simplement"},"content":{"rendered":"<p>Le vilebrequin est un \u00e9l\u00e9ment important du bloc moteur d&rsquo;une voiture \u00e0 moteur thermique. Il assure la transmission de la force entre les pistons du moteur et le volant moteur. Dans cet article, nous vous expliquerons la <strong>structure d&rsquo;un vilebrequin<\/strong>, son fonctionnement et les <strong>travaux d&rsquo;entretien<\/strong> n\u00e9cessaires.<\/p>\n<h2>R\u00f4le : transformation d&rsquo;un mouvement lin\u00e9aire en mouvement rotatif<\/h2>\n<p>Lors de la combustion du m\u00e9lange air-carburant, le moteur g\u00e9n\u00e8re une <strong>force<\/strong>. Celle-ci doit \u00eatre transmise des pistons jusqu&rsquo;au volant moteur. Au d\u00e9part, le mouvement est lin\u00e9aire, de haut en bas, g\u00e9n\u00e9r\u00e9 par les pistons. C&rsquo;est le vilebrequin qui est charg\u00e9 de transformer ce mouvement en un <strong>mouvement rotatif<\/strong> et, par la suite, en un <strong>couple<\/strong>. Il est reli\u00e9 aux pistons par les bielles. Celles-ci transmettent le mouvement lin\u00e9aire au vilebrequin, qui transmet finalement la force au volant moteur.<\/p>\n<h2>Structure d&rsquo;un vilebrequin<\/h2>\n<p>Il s&rsquo;agit d&rsquo;une grande pi\u00e8ce compos\u00e9e de <strong>plusieurs \u00e9l\u00e9ments<\/strong> :<\/p>\n<ul>\n<li><strong>Tourillons :<\/strong> les tourillons sont int\u00e9gr\u00e9s dans l&rsquo;arbre proprement dit. Ils se d\u00e9placent dans les paliers principaux \u00e9galement inclus. Ils sont responsables de l&rsquo;axe de rotation du vilebrequin.<\/li>\n<li><strong>Manetons :<\/strong> les manetons se d\u00e9placent dans les paliers de bielle ou de levage. Ils re\u00e7oivent les bielles et assurent ainsi la liaison avec les pistons du moteur.<\/li>\n<li><strong>Bras de manivelle : <\/strong>Deux bras de manivelle forment ensemble une manivelle. Entre les deux se trouvent alternativement un maneton ou un tourillon. Ils relient les deux types de tourillons.<\/li>\n<li><strong>Contrepoids :<\/strong> les contrepoids se trouvent sur les bras de manivelle. Ils sont plac\u00e9s \u00e0 chaque fois \u00e0 l&rsquo;oppos\u00e9 du point de jonction avec le tourillon \u00e0 l&rsquo;autre extr\u00e9mit\u00e9. Ils pr\u00e9viennent les d\u00e9s\u00e9quilibres. Cela permet un mouvement de rotation r\u00e9gulier.<\/li>\n<\/ul>\n<p>La structure exacte d&rsquo;un vilebrequin d\u00e9pend de la <strong>construction du moteur<\/strong>. Ainsi, la structure du vilebrequin d&rsquo;un moteur \u00e0 faible nombre de cylindres doit \u00eatre diff\u00e9rente de celle d&rsquo;un moteur V8. D&rsquo;autres facteurs influencent sa structure, comme l&rsquo;<strong>ordre d&rsquo;allumage<\/strong> du moteur et la <strong>hauteur de course<\/strong>.<\/p>\n<p>Pour que le vilebrequin et le moteur fonctionnent en parfaite harmonie, les v\u00e9hicules modernes sont \u00e9quip\u00e9s d&rsquo;un <strong>capteur de vilebrequin<\/strong>. Celui-ci enregistre la position du vilebrequin et le r\u00e9gime moteur et permet ainsi une <strong>coordination optimale<\/strong> des composants et une d\u00e9tection pr\u00e9coce des probl\u00e8mes.<\/p>\n<div class=\"product-slider\" style=\"--swiper-theme-color: #d80812;--swiper-navigation-size: 22px;--swiper-navigation-sides-offset: -25px;\"><div class=\"swiper\"><div class=\"swiper-wrapper\"><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/ntsoeq7tqym5sld6ktms.jpg\" alt=\"47967\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1655005-bague-detancheite-elring-331330\" target=\"_blank\">Bague d'\u00e9tanch\u00e9it\u00e9 ELRING 331.330<\/a><p>Elring<\/p><div class=\"price-container\"><p class=\"price\">9.74 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" 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1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/e3mltxjm6n8emvz2rxg5.jpg\" alt=\"37320\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1735104-roue-dentee-vilebrequin-febi-bilstein-25172\" target=\"_blank\">Roue dent\u00e9e, vilebrequin FEBI BILSTEIN 25172<\/a><p>Febi Bilstein<\/p><div class=\"price-container\"><p class=\"price\">13.17 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" 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1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/xb4zuld1dyqmwdt3tie3.jpg\" alt=\"38965\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/227806-joint-detancheite-vilebrequin-elring-745740\" target=\"_blank\">Joint d'\u00e9tanch\u00e9it\u00e9, vilebrequin ELRING 745.740<\/a><p>Elring<\/p><div class=\"price-container\"><p class=\"price\">8.36 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" 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1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/dwckaaisbc6wdqffm71v.jpg\" alt=\"40046\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1861238-piston-mahle-028-pi-00117-000\" target=\"_blank\">Piston MAHLE 028 PI 00117 000<\/a><p>Mahle<\/p><div class=\"price-container\"><p class=\"price\">74.39 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" 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1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/tryntizlunlqqyrkcquy.jpg\" alt=\"41764\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/190499-jeu-de-segments-de-piston-mahle-030-77-n0\" target=\"_blank\">Jeu de segments de piston MAHLE 030 77 N0<\/a><p>Mahle<\/p><div class=\"price-container\"><p class=\"price\">15.72 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 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1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/rnig0fiekneuttdhqf6h.jpg\" alt=\"42560\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/403533-coussinet-de-vilebrequin-glyco-71-35604-std\" target=\"_blank\">Coussinet de vilebrequin GLYCO 71-3560\/4 STD<\/a><p>Glyco<\/p><div class=\"price-container\"><p class=\"price\">44.81 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/yfll0lgcyo1lupvinmhv.jpg\" alt=\"42901\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1910921-joint-detancheite-vilebrequin-reinz-81-39379-00\" target=\"_blank\">Joint d'\u00e9tanch\u00e9it\u00e9, vilebrequin REINZ 81-39379-00<\/a><p>Victor Reinz<\/p><div class=\"price-container\"><p class=\"price\">11.70 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/jupapmfmkobj7oturfa0.jpg\" alt=\"47141\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/251200-coussinet-de-vilebrequin-glyco-71-3994-std\" target=\"_blank\">Coussinet de vilebrequin GLYCO 71-3994 STD<\/a><p>Glyco<\/p><div class=\"price-container\"><p class=\"price\">7.20 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/rrfrkv7bioqqchjw0mk2.jpg\" alt=\"45681\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/1188825-jeu-de-segments-de-piston-mahle-083-06-n0\" target=\"_blank\">Jeu de segments de piston MAHLE 083 06 N0<\/a><p>Mahle<\/p><div class=\"price-container\"><p class=\"price\">15.13 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><div class=\"swiper-slide product\"><img decoding=\"async\" src=\"https:\/\/ic-files-res.cloudinary.com\/image\/upload\/t_pad_white1200x1200v1\/v1\/item\/dwmqg2y5qeydskf1m2ev.jpg\" alt=\"46302\" \/><a class=\"line-clamp-title\" href=\"https:\/\/www.motointegrator.fr\/produits\/175848-joint-detancheite-vilebrequin-elring-742960\" target=\"_blank\">Joint d'\u00e9tanch\u00e9it\u00e9, vilebrequin ELRING 742.960<\/a><p>Elring<\/p><div class=\"price-container\"><p class=\"price\">8.60 EUR<\/p><button class=\"price-button\"><svg id=\"fi_9219671\" enable-background=\"new 0 0 64 64\" height=\"512\" viewBox=\"0 0 64 64\" width=\"512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><g><g><path d=\"m25.308 61.679c-3.514 0-6.373-2.859-6.373-6.373s2.859-6.372 6.373-6.372 6.373 2.858 6.373 6.372-2.859 6.373-6.373 6.373zm0-8.745c-1.308 0-2.373 1.064-2.373 2.372 0 1.309 1.064 2.373 2.373 2.373s2.373-1.064 2.373-2.373c0-1.308-1.064-2.372-2.373-2.372z\"><\/path><path d=\"m47.462 61.679c-3.514 0-6.372-2.859-6.372-6.373s2.858-6.372 6.372-6.372 6.373 2.858 6.373 6.372-2.86 6.373-6.373 6.373zm0-8.745c-1.308 0-2.372 1.064-2.372 2.372 0 1.309 1.064 2.373 2.372 2.373 1.309 0 2.373-1.064 2.373-2.373 0-1.308-1.065-2.372-2.373-2.372z\"><\/path><\/g><path d=\"m52.128 43.994h-31.419c-3.057 0-5.668-2.081-6.35-5.061l-6.521-28.477c-.086-.376-.346-.698-.696-.86l-5.409-2.507c-1.252-.58-1.797-2.066-1.217-3.319.58-1.252 2.067-1.797 3.319-1.217l5.409 2.507c1.743.807 3.04 2.407 3.468 4.28l6.521 28.479c.158.692.765 1.176 1.476 1.176h31.419c.708 0 1.314-.481 1.476-1.171l5.07-21.813c.145-.62-.119-1.071-.288-1.284-.17-.214-.55-.572-1.186-.572h-37c-1.381 0-2.5-1.119-2.5-2.5s1.119-2.5 2.5-2.5h37c1.999 0 3.857.897 5.101 2.462s1.696 3.579 1.244 5.526l-5.071 21.814c-.691 2.965-3.3 5.037-6.346 5.037z\"><\/path><\/g><\/svg><path stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"m8.25 4.5 7.5 7.5-7.5 7.5\" \/><\/svg><\/button><\/div><p class=\"price-info\">TVA incluse, hors frais de port<\/p><\/div><\/div><div class=\"swiper-pagination\"><\/div><div class=\"swiper-button-prev\"><\/div><div class=\"swiper-button-next\"><\/div><\/div><\/div>\n<h2>Quels sont les mat\u00e9riaux utilis\u00e9s pour la fabrication des vilebrequins ?<\/h2>\n<p>Rien que le fonctionnement du vilebrequin explique l&rsquo;\u00e9norme charge \u00e0 laquelle il est soumis lorsque le v\u00e9hicule roule. Il ne cesse d&rsquo;acc\u00e9l\u00e9rer puis de freiner brusquement. Une telle sollicitation entra\u00eenerait une <strong>usure importante<\/strong> de la plupart des mat\u00e9riaux. C&rsquo;est pourquoi les vilebrequins sont encore aujourd&rsquo;hui principalement forg\u00e9s. En r\u00e8gle g\u00e9n\u00e9rale, les fabricants recourent pour cela \u00e0 un acier de traitement alli\u00e9. Ce dernier offre une grande r\u00e9sistance. Pour un meilleur amortissement des vibrations, on utilise \u00e9galement des mod\u00e8les en fonte contenant du graphite sph\u00e9ro\u00efdal.<\/p>\n<p>Les vilebrequins \u00e0 masses pleines constituent un mod\u00e8le particulier. Ils optimisent la pr\u00e9-compression dans le carter. Cela permet d&rsquo;augmenter le couple et, par cons\u00e9quent, le r\u00e9gime et la puissance. Les vilebrequins enti\u00e8rement m\u00e9talliques sont principalement utilis\u00e9s dans le domaine du <strong>tuning<\/strong> afin d&rsquo;optimiser les performances des v\u00e9hicules.<\/p>\n<h2>Un entretien est-il n\u00e9cessaire ?<\/h2>\n<p>En raison de la robustesse du mat\u00e9riau, aucun entretien n&rsquo;est n\u00e9cessaire pour le vilebrequin. Il ne s&rsquo;agit <strong>pas d&rsquo;une pi\u00e8ce d&rsquo;usure typique<\/strong>. De nombreux vilebrequins durent toute une vie de voiture. Si le vilebrequin est gravement endommag\u00e9, cela est souvent d\u00fb \u00e0 un <strong>manque d&rsquo;huile moteur<\/strong>. Toutefois, d&rsquo;autres pi\u00e8ces du moteur sont alors souvent touch\u00e9es et une r\u00e9paration importante s&rsquo;impose.<\/p>\n<p>Il n&rsquo;y a donc <strong>pas de travaux d&rsquo;entretien r\u00e9guliers<\/strong> \u00e0 effectuer sur le vilebrequin. Il n&rsquo;est toutefois pas inutile de v\u00e9rifier les paliers lorsque d&rsquo;autres composants sont remplac\u00e9s. C&rsquo;est le cas, par exemple, lorsque des travaux sont n\u00e9cessaires sur l&#8217;embrayage ou le volant moteur, qui sont habituellement situ\u00e9s \u00e0 proximit\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<p>Vous avez besoin d&rsquo;un nouveau <a href=\"https:\/\/www.motointegrator.fr\/produits\/vilebrequins-et-pieces-de-montage-10604\/\">vilebrequin<\/a> pour votre v\u00e9hicule ? Vous pouvez commander des pi\u00e8ces de rechange de qualit\u00e9 OEM en ligne chez Motointegrator \u00e0 des prix avantageux.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le vilebrequin est un \u00e9l\u00e9ment important du bloc moteur d&rsquo;une voiture \u00e0 moteur thermique. Il assure la transmission de la force entre les pistons du moteur et le volant moteur. Dans cet article, nous vous expliquerons la structure d&rsquo;un vilebrequin, son fonctionnement et les travaux d&rsquo;entretien n\u00e9cessaires. R\u00f4le : transformation d&rsquo;un mouvement lin\u00e9aire en mouvement [&hellip;]<\/p>\n","protected":false},"author":27,"featured_media":15122,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2155],"tags":[6607,6606,6605,6604,6608,4743],"class_list":["post-15121","post","type-post","status-publish","format-standard","has-post-thumbnail","category-conseils","tag-entretien-du-vilebrequin","tag-fonctionnement-du-vilebrequin","tag-role-du-vilebrequin","tag-structure-du-vilebrequin","tag-systeme-bielle-manivelle","tag-vilebrequin"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vilebrequin : r\u00f4le, structure et entretien | Motointegrator<\/title>\n<meta name=\"description\" content=\"Le vilebrequin assure la transmission de la force du moteur au volant moteur. 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