{"id":19125,"date":"2024-12-22T23:06:24","date_gmt":"2024-12-22T23:06:24","guid":{"rendered":"https:\/\/remarca.md\/2024\/12\/22\/ce-rulmenti-sa-alegi-si-de-ce-se-defecteaza\/"},"modified":"2025-01-20T15:11:44","modified_gmt":"2025-01-20T15:11:44","slug":"ce-rulmenti-sa-alegi-si-de-ce-se-defecteaza","status":"publish","type":"post","link":"https:\/\/remarca.md\/ro\/2024\/12\/22\/ce-rulmenti-sa-alegi-si-de-ce-se-defecteaza\/","title":{"rendered":"Ce rulmen\u021bi s\u0103 alegi \u0219i de ce se defecteaz\u0103"},"content":{"rendered":"\n<p>Rulmentul \u2013 una dintre cele mai importante piese ale oric\u0103rui vehicul.<br\/>Acesta are o gam\u0103 larg\u0103 de utiliz\u0103ri: rulmen\u021bi de butuc, rulmen\u021bi de cutie de viteze, de motor. Func\u021bia principal\u0103 a rulmentului este de a men\u021bine stabilitatea piesei \u00een raport cu rota\u021bia axului, bielei, ro\u021bii sau altor componente ale vehiculului.<br\/>Rulmentul const\u0103 \u00een bile \u00eenchise \u00eentr-un inel metalic, sus\u021binute de un separator, role sau ace metalice. Totul depinde de loca\u021bia rulmentului \u0219i de rolul s\u0103u \u00een func\u021bionarea unei anumite piese a vehiculului sau tractorului.    <\/p>\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1300\" height=\"381\" data-id=\"18609\" src=\"https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-1300x381.jpg\" alt=\"\" class=\"wp-image-18609\" srcset=\"https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-1300x381.jpg 1300w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-400x117.jpg 400w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-768x225.jpg 768w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-430x126.jpg 430w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-700x205.jpg 700w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4-150x44.jpg 150w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/podshipniki-4.jpg 1505w\" sizes=\"(max-width: 1300px) 100vw, 1300px\" \/><\/figure>\n<\/figure>\n\n<h2 class=\"wp-block-heading\">De ce se defecteaz\u0103 rulmen\u021bii<\/h2>\n\n<p>Principalele motive ale defect\u0103rii rulmen\u021bilor la automobile pot fi urm\u0103toarele:<br\/>Dac\u0103 este vorba despre rulmen\u021bii de butuc ai ro\u021bilor unui automobil: calitatea slab\u0103 a drumurilor \u0219i toate \u0219ocurile care pot ap\u0103rea \u00een timpul deplas\u0103rii vehiculului afecteaz\u0103 negativ func\u021bionarea rulmentului, ceea ce duce la o reducere semnificativ\u0103 a duratei sale de via\u021b\u0103.<br\/>De asemenea, a\u0219a cum s-a men\u021bionat anterior, rulmentul este sensibil la \u0219ocurile \u00een direc\u021bia axei de rota\u021bie, astfel c\u0103 este extrem de important\u0103 precau\u021bia \u00een timpul instal\u0103rii acestuia. Montajul incorect, utilizarea unor unelte neadecvate sau instalarea unor componente vechi \u0219i uzate conduc la uzura accelerat\u0103 a unui rulment nou sau la reducerea semnificativ\u0103 a duratei de via\u021b\u0103 a piesei respective.<br\/>Calitatea rulmen\u021bilor fabrica\u021bi joac\u0103, de asemenea, un rol semnificativ \u00een procesul de uzur\u0103. Deoarece rulmentul func\u021bioneaz\u0103 sub sarcini mari, acesta trebuie s\u0103 \u00eendeplineasc\u0103 anumite cerin\u021be pentru a asigura buna func\u021bionare a sistemului \u00een automobil. Este necesar s\u0103 opt\u0103m pentru produc\u0103tori de rulmen\u021bi verifica\u021bi, dar s\u0103 nu uit\u0103m c\u0103 cel mai bun produs nu este \u00eentotdeauna cel mai scump. Pre\u021bul de brand nu este mereu justificat.<br\/>Calitatea sc\u0103zut\u0103 sau tratamentul termic insuficient al materialului rulmentului duce la uzura prematur\u0103 a suprafe\u021belor de lucru \u0219i, implicit, la defectarea rapid\u0103 a rulmentului de rostogolire.<br\/>\u00cen ceea ce prive\u0219te condi\u021biile de exploatare, trebuie men\u021bionat c\u0103 rulmentul con\u021bine lubrifiant intern care reduce frecarea bilelor de suprafa\u021ba inelului metalic. P\u0103trunderea prafului, murd\u0103riei sau apei duce la contaminarea suprafe\u021bei de lubrifiere, ceea ce spore\u0219te frecarea \u0219i, implicit, sarcina suplimentar\u0103 asupra rulmentului, rezult\u00e2nd defectarea acestuia.<br\/>Modific\u0103rile neautorizate ale automobilului pot, de asemenea, accelera uzura rulmentului \u0219i defectarea acestuia. De exemplu, schimbarea dimensiunii jantelor sau instalarea altor amortizoare modific\u0103 sarcinile care ac\u021bioneaz\u0103 asupra rulmentului. Astfel, un rulment proiectat pentru a func\u021biona \u00eentr-un anumit interval de sarcin\u0103 ajunge s\u0103 lucreze la limitele sale, ceea ce afecteaz\u0103 negativ durata de via\u021b\u0103 a acestuia.            <\/p>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1300\" height=\"381\" src=\"https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-1300x381.jpg\" alt=\"\" class=\"wp-image-18611\" srcset=\"https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-1300x381.jpg 1300w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-400x117.jpg 400w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-768x225.jpg 768w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-430x126.jpg 430w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-700x205.jpg 700w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18-150x44.jpg 150w, https:\/\/remarca.md\/wp-content\/uploads\/2024\/12\/kakie-podshipniki-vybrat-i-pochemu-oni-lomayutsya-18.jpg 1505w\" sizes=\"(max-width: 1300px) 100vw, 1300px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Rulmentul \u2013 una dintre cele mai importante piese ale oric\u0103rui vehicul.Acesta are o gam\u0103 larg\u0103 de utiliz\u0103ri: rulmen\u021bi de butuc,<\/p>\n","protected":false},"author":1,"featured_media":18258,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[107],"tags":[],"class_list":["post-19125","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rulmenti"],"_links":{"self":[{"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/posts\/19125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/comments?post=19125"}],"version-history":[{"count":1,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/posts\/19125\/revisions"}],"predecessor-version":[{"id":19126,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/posts\/19125\/revisions\/19126"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/media\/18258"}],"wp:attachment":[{"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/media?parent=19125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/categories?post=19125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/remarca.md\/ro\/wp-json\/wp\/v2\/tags?post=19125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}