{"id":2377,"date":"2026-02-07T13:16:00","date_gmt":"2026-02-07T05:16:00","guid":{"rendered":"https:\/\/www.takebrakes.com\/?p=2377"},"modified":"2026-02-05T14:43:13","modified_gmt":"2026-02-05T06:43:13","slug":"what-causes-uneven-braking-vibration-or-judder-on-crane-brakes","status":"publish","type":"post","link":"https:\/\/www.takebrakes.com\/pt\/what-causes-uneven-braking-vibration-or-judder-on-crane-brakes\/","title":{"rendered":"O que causa travagem irregular, vibra\u00e7\u00e3o ou \u201cjudder\u201d em trav\u00f5es de grua?"},"content":{"rendered":"<p>A travagem irregular ou judder em gruas de ponte e de portal \u00e9 tipicamente causada por contacto de fric\u00e7\u00e3o inconsistente ou folgas mec\u00e2nicas. As causas comuns incluem desalinhamento entre o trav\u00e3o e o disco\/tambor, desgaste desigual do revestimento, folga incorreta do espa\u00e7o de ar\/folga, pinos e buchas gastas que criam folga, ou uma roda\/disco de trav\u00e3o com desvio, riscos ou pontos quentes. Revestimentos contaminados (\u00f3leo, graxa, humidade) tamb\u00e9m podem criar zonas de fric\u00e7\u00e3o alternadas altas\/baixas que parecem vibra\u00e7\u00e3o ou agarrar.<\/p>    <p>O controlo do tempo tamb\u00e9m pode contribuir. Se um trav\u00e3o engata enquanto ainda h\u00e1 velocidade residual ou transi\u00e7\u00e3o de torque (especialmente com guinchos VFD), o sistema pode tremer e oscilar. A solu\u00e7\u00e3o \u00e9 inspecionar as superf\u00edcies de fric\u00e7\u00e3o, confirmar o alinhamento e as folgas, substituir juntas gastas e garantir que o trav\u00e3o est\u00e1 a engatar no ponto correto do perfil de movimento. Use materiais de fric\u00e7\u00e3o OEM sempre que poss\u00edvel, porque coeficientes incompat\u00edveis podem aumentar o judder e a instabilidade.<\/p>","protected":false},"excerpt":{"rendered":"<p>Uneven braking or judder on overhead and gantry cranes is typically caused by inconsistent friction contact or mechanical looseness. Common causes include misalignment between brake and disc\/drum, uneven lining wear, incorrect air gap\/clearance, worn pins and bushings creating play, or a brake wheel\/disc with runout, scoring, or hot spots. Contaminated linings (oil, grease, moisture) can [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[132,3],"tags":[133],"class_list":["post-2377","post","type-post","status-publish","format-standard","hentry","category-faq","category-blog","tag-overhead-or-gantry-crane"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/posts\/2377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/comments?post=2377"}],"version-history":[{"count":1,"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/posts\/2377\/revisions"}],"predecessor-version":[{"id":2388,"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/posts\/2377\/revisions\/2388"}],"wp:attachment":[{"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/media?parent=2377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/categories?post=2377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.takebrakes.com\/pt\/wp-json\/wp\/v2\/tags?post=2377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}