{"id":3233,"date":"2021-01-21T09:47:09","date_gmt":"2021-01-21T08:47:09","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=3233"},"modified":"2025-10-13T15:30:43","modified_gmt":"2025-10-13T13:30:43","slug":"role-cilindrice-zb-cu-capete-logaritmice","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/ro\/produsele\/role-cilindrice-si-cu-ace\/role-cilindrice-zb-cu-capete-logaritmice\/","title":{"rendered":"Role ZB \u2013 cape\u0163i logaritmici"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Cylindrical_roller_bearing?utm_source=chatgpt.com\">Role cilindrice \u201eZB\u201d cu capete logaritmice \u2013 Role cu tensiuni reduse la margine pentru rulmen\u021bi toleran\u021bi la nealiniere<\/a><\/h2>\n<p>Role cilindrice \u201eZB\u201d cu profil logaritmic al capetelor sunt role drepte proiectate pentru a reduce tensiunile de margine \u0219i a \u00eembun\u0103t\u0103\u021bi distribu\u021bia \u00eenc\u0103rc\u0103rii \u00een caz de u\u0219oar\u0103 nealiniere. Ofer\u0103 capacitate radial\u0103 ridicat\u0103, frecare redus\u0103 \u0219i performan\u021b\u0103 stabil\u0103 \u00een rulmen\u021bi cu role cilindrice \u0219i ansambluri personalizate pentru antren\u0103ri \u0219i sisteme de mi\u0219care solicitante.<\/p>\n<h3>\ud83d\udd27 Specifica\u021bii tehnice cheie<\/h3>\n<ul>\n<li><strong>Geometria capetelor<\/strong>: ZB = profil logaritmic pe ambele p\u0103r\u021bi pentru a minimiza \u00eenc\u0103rcarea pe margine fa\u021b\u0103 de fe\u021bele plate sau pur cilindrice.<\/li>\n<li><strong>Standarde<\/strong>: Dimensiuni \u0219i precizie conform <em>DIN 5402-1<\/em> (role cilindrice).<\/li>\n<li><strong>Materiale<\/strong>: O\u021bel de rulment 100Cr6 \/ AISI 52100 (1.3505) standard; op\u021biuni inox (AISI 420C\/440C) la cerere.<\/li>\n<li><strong>Duritate (AISI 52100)<\/strong>: ~60\u201366 HRC dup\u0103 tratament termic pentru rezisten\u021b\u0103 la uzur\u0103 \u0219i stabilitate.<\/li>\n<li><strong>Suprafa\u021b\u0103<\/strong>: OD rectificat de precizie &amp; superfinisat; capete rectificate pe contur logaritmic pentru contact optimizat.<\/li>\n<li><strong>Dimensiuni tipice<\/strong>: Diametru \u2248 2,0\u201370,0 mm; Lungime \u2248 4,0\u2013100,0 mm (dimensiuni speciale conform desen).<\/li>\n<li><strong>Toleran\u021be<\/strong>: Sortare la nivel de micron pe diametru\/lungime; clase de precizie conform DIN 5402-1.<\/li>\n<\/ul>\n<h3>\u2705 Avantaje<\/h3>\n<ul>\n<li><strong>Capacitate radial\u0103 ridicat\u0103<\/strong> cu tensiuni de margine reduse \u00een condi\u021bii de nealiniere.<\/li>\n<li><strong>Frecare &amp; temperatur\u0103 mai mici<\/strong> la contactele de cap\u0103t datorit\u0103 profilului logaritmic optimizat.<\/li>\n<li><strong>Durat\u0103 de via\u021b\u0103 \u00eembun\u0103t\u0103\u021bit\u0103<\/strong> datorit\u0103 unei distribu\u021bii mai uniforme a \u00eenc\u0103rc\u0103rii \u0219i a reducerii oboselii de contact.<\/li>\n<li><strong>B\u0103taie (runout) constant\u0103<\/strong> prin finisare OD de precizie \u0219i sortare str\u00e2ns\u0103.<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplica\u021bii penru Role cilindrice \u201eZB\u201d cu capete logaritmice<\/h3>\n<ul>\n<li><strong>Rulmen\u021bi cilindrici<\/strong> (seriile NU, NJ, NUP) \u00een cutii de viteze, antren\u0103ri industriale \u0219i transmisii grele.<\/li>\n<li><strong>Motoare, pompe, compresoare<\/strong> unde poate ap\u0103rea o u\u0219oar\u0103 nealiniere sau deflexie a arborelui.<\/li>\n<li><strong>Ma\u0219ini-unelte &amp; etape de precizie<\/strong> ce necesit\u0103 ghidaj axial stabil cu \u00eenc\u0103rcare minim\u0103 pe margine.<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Clase &amp; dimensiuni disponibile<\/h3>\n<ul>\n<li><strong>Clase de precizie<\/strong>: <a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\">Conform DIN 5402-1<\/a>; seturi \u00eemperecheate \u0219i selec\u021bii speciale disponibile.<\/li>\n<li><strong>Domeniu diametre<\/strong>: ~2,0\u201370,0 mm; <strong>Lungime<\/strong>: ~4,0\u2013100,0 mm.<\/li>\n<li><strong>Tipuri conexe<\/strong>: <strong>ZB<\/strong> = profil logaritmic al capetelor<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-328\" src=\"\/wp-content\/uploads\/2021\/01\/cylindrical-roller-zb-logarithmic-ends.jpg\" alt=\"\" width=\"400\" height=\"252\" srcset=\"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2021\/01\/cylindrical-roller-zb-logarithmic-ends.jpg 400w, https:\/\/www.redhillballs.com\/wp-content\/uploads\/2021\/01\/cylindrical-roller-zb-logarithmic-ends-300x189.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Role cilindrice \u201eZB\u201d cu capete logaritmice \u2013 Role cu tensiuni reduse la margine pentru rulmen\u021bi toleran\u021bi la nealiniere Role cilindrice \u201eZB\u201d cu profil logaritmic al capetelor sunt role drepte proiectate pentru a reduce tensiunile de margine \u0219i a \u00eembun\u0103t\u0103\u021bi distribu\u021bia \u00eenc\u0103rc\u0103rii \u00een caz de u\u0219oar\u0103 nealiniere. Ofer\u0103 capacitate radial\u0103 ridicat\u0103, frecare redus\u0103 \u0219i performan\u021b\u0103 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9005,"parent":3223,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3233","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Role cilindrice ZB cu capete logaritmice performan\u021b\u0103 \u0219i durabilitate<\/title>\n<meta name=\"description\" content=\"Role cilindrice ofer\u0103 distribu\u021bie uniform\u0103 a sarcinii, reduc uzura \u0219i asigur\u0103 func\u021bionare lin\u0103 \u00een rulmen\u021bi \u0219i mecanisme de precizie\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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