{"id":11962,"date":"2017-12-14T21:27:20","date_gmt":"2017-12-14T21:27:20","guid":{"rendered":"http:\/\/accento.space\/imporbrake.com\/?p=11962"},"modified":"2018-01-31T16:59:21","modified_gmt":"2018-01-31T16:59:21","slug":"discos-de-freno","status":"publish","type":"post","link":"https:\/\/www.imporbrake.com\/?p=11962","title":{"rendered":"Discos de Freno"},"content":{"rendered":"<p align=\"justify\">El freno de disco es un sistema de frenado normalmente para ruedas de veh\u00edculos, en el cual una parte m\u00f3vil (el disco) solidario con la rueda que gira es sometido al rozamiento de unas superficies de alto coeficiente de fricci\u00f3n (las pastillas) que ejercen sobre ellos una fuerza suficiente como para transformar toda o parte de la energ\u00eda cin\u00e9tica del veh\u00edculo en movimiento, en calor, hasta detenerlo o reducir su velocidad, seg\u00fan sea el caso. Esta inmensa cantidad de calor ha de ser evacuada de alguna manera, y lo m\u00e1s r\u00e1pidamente posible. El mecanismo es similar en esto al freno de tambor, con la diferencia de que la superficie frenante es menor pero la evacuaci\u00f3n del calor al ambiente es mucho mejor, compensando ampliamente la menor superficie frenante.<\/p>\n<h5>&#8211; Historia<\/h5>\n<p align=\"justify\">Inicialmente los frenos de disco fueron introducidos en los veh\u00edculos deportivos que demandaban una mayor capacidad de frenada. Algunos estaban colocados dentro del veh\u00edculo, junto al diferencial, pero la inmensa mayor\u00eda de los actuales se colocan dentro de las ruedas. Los posicionados dentro del veh\u00edculo permiten disminuir la masa suspendida y el calor transmitido a las ruedas, importante en la alta competici\u00f3n. En la actualidad los frenos de disco han sido introducidos pr\u00e1cticamente en la totalidad de los veh\u00edculos, si bien se siguen utilizando los frenos de tambor en el eje trasero en las gamas bajas, como forma de reducir costes y simplificar el funcionamiento del freno de mano. Dado que la mayor\u00eda del esfuerzo de frenada se produce en el eje delantero, esta soluci\u00f3n ofrece un compromiso razonable entre coste y seguridad.<\/p>\n<h5>&#8211; Mordazas (Calipers) o pinzas<\/h5>\n<p align=\"justify\">La mordaza es el soporte de las pastillas y los pistones de freno. Los pistones est\u00e1n generalmente hechos de Hierro dulce y luego son recubiertos por un cromado. Hay dos tipos de mordazas: flotantes o fijas. Las fijas no se mueven, en relaci\u00f3n al disco de freno, y utilizan uno o m\u00e1s pares de pistones. De este modo, al accionarse, presionan las pastillas a ambos lados del disco. En general son m\u00e1s complejas y caras que las mordazas flotantes. Las mordazas flotantes, tambi\u00e9n denominadas &#8220;mordazas deslizantes&#8221;, se mueven en relaci\u00f3n al disco; un piston a uno de los lados empuja la pastilla hasta que esta hace contacto con la superficie del disco, haciendo que la mordaza y con ella la pastilla de freno interior se desplacen. De este modo la presi\u00f3n es aplicada a ambos lados del disco y se logra la acci\u00f3n de frenado. Las mordazas flotantes pueden fallar debido al enclavamieto de la mordaza. Esto puede ocurrir por suciedad o corrosi\u00f3n, cuando el veh\u00edculo no es utilizado por tiempos prolongados. Si esto sucede, la pastilla de freno de la mordaza har\u00e1 fricci\u00f3n con el disco a\u00fan cuando el freno no est\u00e9 siendo utilizado, ocasionando un desgaste acelerado de la pastilla y una reducci\u00f3n en el rendimiento del combustible, junto con una p\u00e9rdida de la capacidad de frenado debida al recalenamiento del respectivo conjunto de frenado (tambor-balata o disco-pastilla) provocando adem\u00e1s desequilibrio en el frenado, ya que la rueda con freno recalentado frenar\u00e1 menos que su contraparte.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El freno de disco es un sistema de frenado normalmente para ruedas de veh\u00edculos, en el cual una parte m\u00f3vil (el disco) solidario con la rueda que gira es sometido<\/p>\n","protected":false},"author":1,"featured_media":11888,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rs_blank_template":"","rs_page_bg_color":"","slide_template_v7":"","_joinchat":[],"footnotes":""},"categories":[7],"tags":[],"class_list":["post-11962","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-discos-de-freno"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v27.8) - 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