{"id":73060,"date":"2026-09-11T08:18:17","date_gmt":"2026-09-11T06:18:17","guid":{"rendered":"https:\/\/www.km77.com\/revista\/?p=73060"},"modified":"2026-09-11T08:18:19","modified_gmt":"2026-09-11T06:18:19","slug":"codigo-utqg-neumaticos-que-es","status":"publish","type":"post","link":"https:\/\/www.km77.com\/revista\/engendro-mecanico\/codigo-utqg-neumaticos-que-es\/","title":{"rendered":"Qu\u00e9 es el c\u00f3digo UTQG de los neum\u00e1ticos"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Al inspeccionar el flanco exterior de un neum\u00e1tico de turismo, m\u00e1s all\u00e1 de la medida dimensional, el \u00edndice de carga y el c\u00f3digo de velocidad, suele figurar una inscripci\u00f3n estandarizada precedida por las siglas\u00a0<strong>UTQG<\/strong>\u00a0(<em>Uniform Tire Quality Grading<\/em>). Este sistema de clasificaci\u00f3n, instaurado originalmente por el Departamento de Transporte de los Estados Unidos (DOT) a trav\u00e9s de la NHTSA (<em>National Highway Traffic Safety Administration<\/em>), se ha consolidado como un est\u00e1ndar informativo para comparar el <strong>rendimiento relativo<\/strong> entre distintas cubiertas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En\u00a0esta entrada desgranamos la metodolog\u00eda de ensayo que define cada uno de los <strong>tres par\u00e1metros del UTQG<\/strong> y los l\u00edmites que deben considerarse al interpretar estos datos en condiciones reales de circulaci\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00cdndice de desgaste relativo<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El Treadwear se determina mediante un ensayo normalizado en el que el neum\u00e1tico se compara con un neum\u00e1tico de referencia sobre un recorrido establecido, bajo condiciones controladas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La cifra asignada toma como referencia un neum\u00e1tico de control estandarizado con un \u00edndice base de 100:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Un neum\u00e1tico con un valor\u00a0<strong>Treadwear 200<\/strong>\u00a0est\u00e1 proyectado para durar <strong>te\u00f3ricamente<\/strong> el doble que el neum\u00e1tico patr\u00f3n bajo id\u00e9nticas condiciones de prueba.<\/li>\n\n\n\n<li>Un neum\u00e1tico con&nbsp;<strong>Treadwear 400<\/strong>&nbsp;o superior triplica o cuadruplica dicha durabilidad te\u00f3rica.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"559\" src=\"https:\/\/www.km77.com\/revista\/wp-content\/uploads\/2026\/08\/Gemini_Generated_Image_ixg332ixg332ixg3-1024x559.jpg\" alt=\"\" class=\"wp-image-73064\" srcset=\"https:\/\/www.km77.com\/revista\/wp-content\/uploads\/2026\/08\/Gemini_Generated_Image_ixg332ixg332ixg3-1024x559.jpg 1024w, https:\/\/www.km77.com\/revista\/wp-content\/uploads\/2026\/08\/Gemini_Generated_Image_ixg332ixg332ixg3-980x535.jpg 980w, https:\/\/www.km77.com\/revista\/wp-content\/uploads\/2026\/08\/Gemini_Generated_Image_ixg332ixg332ixg3-480x262.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">En t\u00e9rminos generales, una cifra baja (entre 140 y 240) es propia de compuestos blandos orientados a veh\u00edculos deportivos, donde se prioriza la adherencia mec\u00e1nica y la precisi\u00f3n de guiado a costa de una degradaci\u00f3n acelerada del caucho. Por contra, los neum\u00e1ticos de turismo convencionales y de baja resistencia a la rodadura suelen registrar valores<strong> entre 400 y 600.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No obstante, este \u00edndice tiene una limitaci\u00f3n t\u00e9cnica clave: la asignaci\u00f3n final del valor la realiza cada fabricante tras extrapolar los datos del ensayo oficial. En consecuencia, el Treadwear resulta sumamente fiable para comparar modelos dentro de la gama de una misma marca de neum\u00e1ticos, pero puede presentar ligeras discrepancias relativas al contrastar cubiertas de distintos fabricantes sometidas a diferentes filosof\u00edas de calibraci\u00f3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tracci\u00f3n y temperatura<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los dos par\u00e1metros restantes del c\u00f3digo UTQG eval\u00faan la capacidad de agarre en l\u00ednea recta sobre firme h\u00famedo y la resistencia a la degradaci\u00f3n t\u00e9rmica provocada por la rodadura continua a alta velocidad:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tracci\u00f3n:<\/strong>&nbsp;Se califica mediante las letras&nbsp;<strong>AA, A, B y C<\/strong>, siendo&nbsp;<strong>AA<\/strong>&nbsp;el nivel m\u00e1s alto. Esta prueba mide exclusivamente el coeficiente de fricci\u00f3n longitudinal del neum\u00e1tico durante una frenada en recta sobre superficies controladas de asfalto y hormig\u00f3n mojados, sin que intervengan los sistemas antibloqueo (ABS). Es fundamental recalcar que esta prueba no eval\u00faa la adherencia transversal en curva, la resistencia al&nbsp;aquaplaning ni el comportamiento sobre nieve o hielo.<\/li>\n\n\n\n<li><strong>Temperatura:<\/strong>\u00a0Se clasifica con las letras <strong>A, B o C<\/strong>, donde A representa el nivel m\u00e1s alto. La prueba se realiza en un banco dinamom\u00e9trico de laboratorio y eval\u00faa la resistencia del neum\u00e1tico a la generaci\u00f3n y acumulaci\u00f3n de calor bajo condiciones controladas. La calificaci\u00f3n C corresponde al nivel m\u00ednimo exigido por la normativa estadounidense, mientras que B y A representan niveles superiores de resistencia t\u00e9rmica.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La lectura conjunta de estos tres par\u00e1metros permite hacerse una idea de la resistencia al desgaste, la capacidad de frenado sobre mojado y la resistencia t\u00e9rmica del neum\u00e1tico. No obstante, el UTQG no describe todas sus prestaciones y no sustituye a una comparaci\u00f3n m\u00e1s amplia de comportamiento en seco, curva, aquaplaning, ruido o resistencia a la rodadura.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Al inspeccionar el flanco exterior de un neum\u00e1tico de turismo, m\u00e1s all\u00e1 de la medida dimensional, el \u00edndice de carga y el c\u00f3digo de velocidad, suele figurar una inscripci\u00f3n estandarizada precedida por las siglas\u00a0UTQG\u00a0(Uniform Tire Quality Grading). Este sistema de clasificaci\u00f3n, instaurado originalmente por el Departamento de Transporte de los Estados Unidos (DOT) a trav\u00e9s [&hellip;]<\/p>\n","protected":false},"author":93,"featured_media":73063,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[3912],"tags":[7975,22],"class_list":["post-73060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-engendro-mecanico","tag-de-todo-un-poco","tag-general"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu\u00e9 es el c\u00f3digo UTQG de los neum\u00e1ticos<\/title>\n<meta name=\"description\" content=\"Analizamos el significado de las calificaciones de Treadwear, Traction y Temperature, su metodolog\u00eda de ensayo y su utilidad 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