{"id":3351,"date":"2022-12-01T00:00:00","date_gmt":"2022-11-30T23:00:00","guid":{"rendered":"https:\/\/epidor.com\/fundamentos-de-mecanica-2\/"},"modified":"2026-01-09T10:52:30","modified_gmt":"2026-01-09T09:52:30","slug":"fondements-de-la-mecanique-2","status":"publish","type":"post","link":"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/","title":{"rendered":"Principes fondamentaux de la m\u00e9canique"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Pour comprendre la m\u00e9canique, il faut<\/span><b> de conna\u00eetre leur \u201cabc\u201d.<\/b><span style=\"font-weight: 400;\"> C'est pourquoi nous vous proposons cette fois-ci <\/span><b>un blog avec une diff\u00e9rence<\/b><span style=\"font-weight: 400;\">, \u00cates-vous pr\u00eat pour cet article o\u00f9 nous allons passer en revue quelques unes des bases de la m\u00e9canique ? Nous y voil\u00e0.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-left counter-flat ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Index<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Conceptos_propios_de_los_fundamentos_de_mecanica\" >Concepts sp\u00e9cifiques aux fondamentaux de la m\u00e9canique<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Ejes_y_vastagos\" >Arbres et tiges<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Diametro_parametro_imprescindible_a_tener_en_cuenta\" >Le diam\u00e8tre, un param\u00e8tre essentiel \u00e0 prendre en compte<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Unidades_de_medidas\" >Unit\u00e9s de mesure<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#La_velocidad\" >La vitesse<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Fuerza_y_movimiento\" >Force et mouvement\u00a0<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Segunda_ley_de_Newton\" >Deuxi\u00e8me loi de Newton<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#La_presion\" >La pression<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#La_dureza_un_fundamento_de_la_mecanica_a_tener_en_cuenta\" >La duret\u00e9, une base m\u00e9canique \u00e0 prendre en compte<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Rugosidad\" >Rugosit\u00e9<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Escala_ISO\" >\u00c9chelle ISO\u00a0<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/epidor.com\/fr\/blog\/fundamentos-de-mecanica\/#Video_en_Youtube_Fundamentos_de_mecanica\" >Vid\u00e9o Youtube ; Fondamentaux de la m\u00e9canique<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"anchor1\"><span class=\"ez-toc-section\" id=\"Conceptos_propios_de_los_fundamentos_de_mecanica\"><\/span><span style=\"font-weight: 400;\">Concepts sp\u00e9cifiques aux fondamentaux de la m\u00e9canique<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"anchor2\"><span class=\"ez-toc-section\" id=\"Ejes_y_vastagos\"><\/span><span style=\"font-weight: 400;\">Arbres et tiges<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20508\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/SRT_202212_Fudamentos_mecanica_Ejes-y-vastagos_836x395px.gif\" alt=\"Principes fondamentaux de la m\u00e9canique\" width=\"836\" height=\"395\" \/><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Lorsque nous commen\u00e7ons \u00e0 parler des bases de la m\u00e9canique, nous devons clarifier certains concepts, tels que la diff\u00e9rence entre <\/span><b>arbre et tige<\/b><span style=\"font-weight: 400;\">. Un arbre est une barre cylindrique qui tourne sur elle-m\u00eame, tandis qu'une tige de piston a un mouvement avant et arri\u00e8re.\u00a0<\/span><\/p>\n<h3 id=\"anchor3\"><span class=\"ez-toc-section\" id=\"Diametro_parametro_imprescindible_a_tener_en_cuenta\"><\/span><span style=\"font-weight: 400;\">Le diam\u00e8tre, un param\u00e8tre essentiel \u00e0 prendre en compte<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Pour d\u00e9finir les <\/span><a href=\"https:\/\/es.wikipedia.org\/wiki\/Di%C3%A1metro\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">diam\u00e8tre<\/span><\/a><span style=\"font-weight: 400;\"> d'un axe ou d'un arbre ou d'une tige doit \u00eatre imagin\u00e9<\/span><b> une section transversale dans la pi\u00e8ce<\/b><span style=\"font-weight: 400;\">. La figure r\u00e9sultant de cette coupe est un <\/span><b>la circonf\u00e9rence ; \u00e0 partir de l\u00e0, on obtient le diam\u00e8tre<\/b><span style=\"font-weight: 400;\"> des pi\u00e8ces.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20500\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/SRT_202212_Fudamentos_mecanica_Diametro_836x395px.jpg\" alt=\"Principes fondamentaux de la m\u00e9canique\" width=\"836\" height=\"395\" \/><\/p>\n<h3 id=\"anchor4\"><span class=\"ez-toc-section\" id=\"Unidades_de_medidas\"><\/span><span style=\"font-weight: 400;\">Unit\u00e9s de mesure<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Poursuivre ces concepts,<\/span><b> parlons des unit\u00e9s de mesure<\/b><span style=\"font-weight: 400;\">. Le syst\u00e8me de mesure international est le <\/span><a href=\"https:\/\/es.wikipedia.org\/wiki\/Sistema_MKS_de_unidades\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">MKS<\/span><\/a><span style=\"font-weight: 400;\">. Ce syst\u00e8me a les caract\u00e9ristiques suivantes <\/span><b>m\u00e8tre (m)<\/b><span style=\"font-weight: 400;\">, les <\/span><b>kilogramme (kg) <\/b><span style=\"font-weight: 400;\">et le <\/span><b>seconde(s) <\/b><span style=\"font-weight: 400;\">en tant qu'unit\u00e9s de base, associ\u00e9es \u00e0 trois grandeurs fondamentales, \u00e0 savoir le <\/span><b>masse<\/b><span style=\"font-weight: 400;\">, les <\/span><b>longueur<\/b><span style=\"font-weight: 400;\">, et le <\/span><b>temps<\/b><span style=\"font-weight: 400;\">. Des unit\u00e9s compl\u00e9mentaires sont obtenues \u00e0 partir de ces derni\u00e8res, par exemple la <\/span><b>millim\u00e8tre (mm) <\/b><span style=\"font-weight: 400;\">qui est l'unit\u00e9 la plus courante en m\u00e9canique et qui \u00e9vite l'utilisation d'un trop grand nombre de d\u00e9cimales.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cependant, <\/span><b>dans les pays anglo-saxons, le pouce est utilis\u00e9<\/b><span style=\"font-weight: 400;\">,et est divis\u00e9 en moiti\u00e9s (\u00bd\u201d), en quarts (\u00bc\u201d), en huiti\u00e8mes (\u215b\u201d)... et ainsi de suite.\u00a0\u00a0<\/span><\/p>\n<h3 id=\"anchor5\"><span class=\"ez-toc-section\" id=\"La_velocidad\"><\/span><span style=\"font-weight: 400;\">La vitesse<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Les <\/span><a href=\"https:\/\/es.wikipedia.org\/wiki\/Velocidad\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">vitesse<\/span><\/a><span style=\"font-weight: 400;\"> est un <\/span><b>concept d\u00e9velopp\u00e9 par Galileo Galilei<\/b><span style=\"font-weight: 400;\"> (XVIe si\u00e8cle) dans l'\u00e9tude du mouvement des corps, et se d\u00e9finit comme suit <\/span><b>la distance parcourue par un objet en un temps donn\u00e9<\/b><span style=\"font-weight: 400;\">. La vitesse est exprim\u00e9e en m\u00e8tres par seconde (m\/s). Dans le syst\u00e8me anglo-saxon, on utilise les pieds par seconde (ft\/s).\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pour conna\u00eetre la vitesse de rotation d'un arbre, on compte le nombre de tours ou de r\u00e9volutions par minute (r.p.m.). <\/span><b>tours par minute<\/b><span style=\"font-weight: 400;\">. Cette vitesse est appel\u00e9e<\/span><b> vitesse angulaire<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Si l'on parle de vitesse en m\u00e9canique, il est n\u00e9cessaire de commenter le concept de la <\/span><b>vitesse lin\u00e9aire ou p\u00e9riph\u00e9rique<\/b><span style=\"font-weight: 400;\">, d\u00e9finie comme la vitesse \u00e0 la p\u00e9riph\u00e9rie de l'axe ou tangentielle \u00e0 l'axe. Elle est exprim\u00e9e en m\u00e8tres par seconde.<\/span><\/p>\n<h3 id=\"anchor6\"><span class=\"ez-toc-section\" id=\"Fuerza_y_movimiento\"><\/span><span style=\"font-weight: 400;\">Force et mouvement\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Les <\/span><a href=\"https:\/\/es.wikipedia.org\/wiki\/Fuerza\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">force<\/span><\/a><span style=\"font-weight: 400;\"> est d\u00e9fini comme suit <\/span><b>l'action qui provoque des changements dans la <\/b><a href=\"https:\/\/es.wikipedia.org\/wiki\/Movimiento_(m%C3%BAsica)\" target=\"_blank\" rel=\"noopener\"><b>mouvement<\/b><\/a><span style=\"font-weight: 400;\"> ou la structure d'un objet et son unit\u00e9 est le Newton (N). Cette unit\u00e9 porte le nom du math\u00e9maticien anglais du XVIIe si\u00e8cle Sir <\/span><b>Isaac Newton<\/b><span style=\"font-weight: 400;\">, qui, par l'\u00e9tude, a statu\u00e9 sur les trois lois du mouvement : l'inertie, la loi fondamentale de la dynamique et le principe de l'action et de la r\u00e9action.<\/span><\/p>\n<h4 id=\"anchor7\"><span class=\"ez-toc-section\" id=\"Segunda_ley_de_Newton\"><\/span><span style=\"font-weight: 400;\">Deuxi\u00e8me loi de Newton<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">Cette loi du math\u00e9maticien britannique stipule que <\/span><b>la force est le produit d'une masse et d'une acc\u00e9l\u00e9ration<\/b><span style=\"font-weight: 400;\">. Par cons\u00e9quent, nous pourrions d\u00e9finir le poids comme la force exerc\u00e9e par la gravit\u00e9 terrestre sur tout objet sur Terre. Ainsi, les unit\u00e9s de <\/span><b>force<\/b><span style=\"font-weight: 400;\">, <\/span><b>t\u00e9l\u00e9charger<\/b><span style=\"font-weight: 400;\">, <\/span><b>tension <\/b><span style=\"font-weight: 400;\">y <\/span><b>poids <\/b><span style=\"font-weight: 400;\">sont les m\u00eames.<\/span><\/p>\n<h3 id=\"anchor8\"><span class=\"ez-toc-section\" id=\"La_presion\"><\/span><span style=\"font-weight: 400;\">La pression<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Les <\/span><a href=\"https:\/\/es.wikipedia.org\/wiki\/Presi%C3%B3n\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">pression<\/span><\/a><span style=\"font-weight: 400;\"> est un param\u00e8tre essentiel pour comprendre la m\u00e9canique et l'hydraulique. C'est la <\/span><b>effet d'une force agissant sur une surface<\/b><span style=\"font-weight: 400;\">. Elle est d\u00e9finie en utilisant le Pascal comme unit\u00e9 de mesure. Il s'agit toutefois d'une unit\u00e9 peu pratique, qui comporte g\u00e9n\u00e9ralement des multiples du Pascal. <\/span><b>m\u00e9gapascal (MPa) <\/b><span style=\"font-weight: 400;\">y <\/span><b>hectopascal (hPa)<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">D'autres d\u00e9finitions de la pression sont \u00e9galement utilis\u00e9es <\/span><b>les unit\u00e9s telles que l'atmosph\u00e8re et le bar<\/b><span style=\"font-weight: 400;\">. Ceux-ci d\u00e9finissent un <\/span><b>kilogramme <\/b><span style=\"font-weight: 400;\">de force appliqu\u00e9e \u00e0 la surface d'un centim\u00e8tre carr\u00e9. Le syst\u00e8me anglo-saxon utilise le \u201cpsi\u201d (pounds square inches), c'est-\u00e0-dire la force appliqu\u00e9e \u00e0 un centim\u00e8tre carr\u00e9, <\/span><b>une livre de force appliqu\u00e9e sur une surface d'un pouce carr\u00e9.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Une pression peut \u00eatre <\/span><b>relatif<\/b><span style=\"font-weight: 400;\"> o <\/span><b>absolu<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">- En cas de pression <b>relatif<\/b><span style=\"font-weight: 400;\">, signifie que <\/span><b>est li\u00e9 \u00e0 une r\u00e9f\u00e9rence<\/b><span style=\"font-weight: 400;\"> et prenons, par exemple, la pression atmosph\u00e9rique au niveau de la mer. \u00c0 partir de l\u00e0, nous aurons diff\u00e9rents niveaux de pression exprim\u00e9s positivement ou n\u00e9gativement. L'adjectif \u201cmanom\u00e9trique\u201d est souvent ajout\u00e9 \u00e0 la pression car l'appareil qui mesure la pression s'appelle un manom\u00e8tre.<\/span><\/span><\/li>\n<li><span style=\"color: #000000;\">- Dans le cas o\u00f9 l'on est <b>absolu<\/b><span style=\"font-weight: 400;\">, La pression de r\u00e9f\u00e9rence est nulle, c'est-\u00e0-dire le vide absolu, et c'est comme si le corps se trouvait en dehors de l'atmosph\u00e8re terrestre, dans l'espace.\u00a0<\/span><\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20516\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/SRT_202212_Fudamentos_mecanica_presion_836x395px.jpg\" alt=\"Principes fondamentaux de la m\u00e9canique\" width=\"836\" height=\"395\" \/><\/p>\n<h3 id=\"anchor9\"><span class=\"ez-toc-section\" id=\"La_dureza_un_fundamento_de_la_mecanica_a_tener_en_cuenta\"><\/span><span style=\"font-weight: 400;\">La duret\u00e9, une base m\u00e9canique \u00e0 prendre en compte<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Un autre concept de base, lorsqu'on parle des fondements de la m\u00e9canique, est celui de la <\/span><a href=\"https:\/\/es.wikipedia.org\/wiki\/Dureza\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">duret\u00e9<\/span><\/a><span style=\"font-weight: 400;\">. Il est d\u00e9fini comme suit <\/span><b>la r\u00e9sistance d'un mat\u00e9riau \u00e0 une modification physique, par exemple \u00e0 la rayure, \u00e0 l'abrasion ou \u00e0 la p\u00e9n\u00e9tration<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20504\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/SRT_202212_Fudamentos_mecanica_DUREZA_836x395px.jpg\" alt=\"Principes fondamentaux de la m\u00e9canique\" width=\"836\" height=\"395\" \/>\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L'\u00e9chelle qui <\/span><b>mesure la duret\u00e9<\/b><span style=\"font-weight: 400;\"> d\u00e9pend du type de mat\u00e9riau. Dans le cas des mat\u00e9riaux \u00e9lastom\u00e8res et thermoplastiques, l'\u00e9chelle de duret\u00e9 utilis\u00e9e est la suivante <\/span><b>type de rive A<\/b><span style=\"font-weight: 400;\">, qui commence par le chiffre z\u00e9ro, correspondant \u00e0 des mat\u00e9riaux tr\u00e8s souples.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Les <\/span><b>\u00e9chelle de rive type D<\/b><span style=\"font-weight: 400;\"> est destin\u00e9 aux mat\u00e9riaux plus rigides, tels que le polyur\u00e9thane ou les plastiques durs.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20512\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/SRT_202212_Fudamentos_mecanica_escala-shore_836x395px.jpg\" alt=\"Principes fondamentaux de la m\u00e9canique\" width=\"836\" height=\"395\" \/><\/p>\n<h3 id=\"anchor10\"><span class=\"ez-toc-section\" id=\"Rugosidad\"><\/span><span style=\"font-weight: 400;\">Rugosit\u00e9<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Toute solution d'\u00e9tanch\u00e9it\u00e9 (joint plat, joint torique, collier, dispositif de retenue, racleur...) sera en contact avec la surface d'\u00e9tanch\u00e9it\u00e9. La performance de la solution d'\u00e9tanch\u00e9it\u00e9 choisie sera influenc\u00e9e par l'\u00e9tat de surface de la surface d'\u00e9tanch\u00e9it\u00e9. Celui-ci a une s\u00e9rie de <\/span><b>d'irr\u00e9gularit\u00e9s qui d\u00e9finissent leur <\/b><a href=\"https:\/\/es.wikipedia.org\/wiki\/Rugosidad_(mec%C3%A1nica)\" target=\"_blank\" rel=\"noopener\"><b>rugosit\u00e9<\/b><\/a><b>.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">La rugosit\u00e9 est d\u00e9terminante pour l'\u00e9tanch\u00e9it\u00e9.<\/span><b> Si une surface pr\u00e9sente une tr\u00e8s faible rugosit\u00e9, comme un miroir, le joint d'\u00e9tanch\u00e9it\u00e9 peut devenir glissant.<\/b><span style=\"font-weight: 400;\">. Au contraire, <\/span><b>en cas de rugosit\u00e9 \u00e9lev\u00e9e, le joint peut s'user pr\u00e9matur\u00e9ment<\/b><span style=\"font-weight: 400;\">. L'exp\u00e9rience nous apprend donc que la rugosit\u00e9 de la surface est d\u00e9terminante pour la dur\u00e9e de vie du joint et qu'il est recommand\u00e9 d'avoir une rugosit\u00e9 comprise entre une valeur maximale et une valeur minimale.\u00a0\u00a0<\/span><\/p>\n<h4 id=\"anchor11\"><span class=\"ez-toc-section\" id=\"Escala_ISO\"><\/span><span style=\"font-weight: 400;\">\u00c9chelle ISO\u00a0<\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">En raison de l'usure des composants utilis\u00e9s dans le processus de fabrication des pi\u00e8ces, les pi\u00e8ces fabriqu\u00e9es ne seront jamais les m\u00eames. C'est la raison pour laquelle, <\/span><b>il est important d'accepter une certaine tol\u00e9rance dans la partie r\u00e9pliqu\u00e9e.<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00c0 ces niveaux, l'\u00e9chelle utilis\u00e9e pour exprimer la tol\u00e9rance est la suivante <\/span><b>milli\u00e8me de millim\u00e8tre ou micron<\/b><span style=\"font-weight: 400;\">. Dans le cas des angles, les \u00e9l\u00e9ments suivants sont utilis\u00e9s <\/span><b>minutes <\/b><span style=\"font-weight: 400;\">o <\/span><b>secondes<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C'est la raison pour laquelle,<\/span><b> la norme ISO indique des tol\u00e9rances qui se situent dans la fourchette normale<\/b><span style=\"font-weight: 400;\"> et sont exprim\u00e9s en lettres, qui d\u00e9finissent la tol\u00e9rance, et en chiffres, son amplitude.\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-20496\" src=\"https:\/\/epidor.com\/wp-content\/uploads\/2025\/04\/SRT_202212_Fudamentos_escala-ISO_836x395px.jpg\" alt=\"Principes fondamentaux de la m\u00e9canique\" width=\"836\" height=\"395\" \/><\/p>\n<p><span style=\"font-weight: 400;\">La rugosit\u00e9 et la tol\u00e9rance sont souvent confondues. <\/span><b>les deux concepts ne sont pas li\u00e9s<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>\n<h2 id=\"anchor12\"><span class=\"ez-toc-section\" id=\"Video_en_Youtube_Fundamentos_de_mecanica\"><\/span><span style=\"font-weight: 400;\">Vid\u00e9o Youtube ; Fondamentaux de la m\u00e9canique<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Si vous ma\u00eetrisez d\u00e9j\u00e0 ces concepts, <\/span><b>nous vous invitons \u00e0 regarder notre vid\u00e9o de formation sur les bases de la m\u00e9canique<\/b><span style=\"font-weight: 400;\">. Retrouvez cette formation et d'autres formations compl\u00e9mentaires dans la rubrique <\/span><a href=\"https:\/\/epidor-srt.com\/area-tecnica\/formacion\/\"><span style=\"font-weight: 400;\">Domaine technique<\/span><\/a><span style=\"font-weight: 400;\"> \u00e0 partir de notre site web ou en visitant notre <\/span><a href=\"https:\/\/www.youtube.com\/@epidorsealsandrubbertechno9309\"><span style=\"font-weight: 400;\">Cha\u00eene Youtube<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<div style=\"text-align: center;\">\n<iframe loading=\"lazy\" title=\"Lecteur vid\u00e9o YouTube\" src=\"https:\/\/www.youtube.com\/embed\/W_HXupLQU4s\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe>\n<\/div>\n<p><span style=\"font-weight: 400;\">Nous esp\u00e9rons que cet article vous a int\u00e9ress\u00e9. Si vous avez des questions \u00e0 ce sujet, veuillez contacter <\/span><a href=\"https:\/\/epidor-srt.com\/contactanos\/\"><span style=\"font-weight: 400;\">nos sp\u00e9cialistes sur le terrain<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Para poder entender mec\u00e1nica, necesitamos conocer su \u201cabc\u201d. Es por eso que esta vez traemos un blog un poco diferente, un art\u00edculo donde repasamos algunos de los fundamentos de mec\u00e1nica. \u00bfEst\u00e1s preparado? All\u00e1 vamos. Conceptos propios de los fundamentos de mec\u00e1nica Ejes y v\u00e1stagos Al empezar a hablar de fundamentos de mec\u00e1nica tenemos que aclarar [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3359,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[41],"tags":[],"class_list":["post-3351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-informacion-tecnica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fundamentos de mec\u00e1nica - Epidor - Expertos en soluciones de estanqueidad<\/title>\n<meta name=\"description\" content=\"Para poder entender la mec\u00e1nica, necesitamos conocer cu\u00e1les son los fundamentos de mec\u00e1nica. 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