{"id":3227,"date":"2021-01-21T09:46:18","date_gmt":"2021-01-21T08:46:18","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=3227"},"modified":"2025-10-13T08:18:23","modified_gmt":"2025-10-13T06:18:23","slug":"role-cu-ace-nrb-cu-capete-plane","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/ro\/produsele\/role-cilindrice-si-cu-ace\/role-cu-ace-nrb-cu-capete-plane\/","title":{"rendered":"Role cu ace NRB cu capete plane"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Needle_roller_bearing?utm_source=chatgpt.com\">Role cu ace NRB cu capete plane \u2013 Role cu capete plate pentru ansambluri rigide \u0219i cu sarcini mari<\/a><\/h2>\n<p>Role cu ace NRB cu capete plane sunt elemente cu v\u00e2rf plat utilizate \u00een cu\u0219ti de precizie \u0219i ansambluri de rulmen\u021bi cu ace, unde sarcinile radiale mari, frecarea redus\u0103 \u0219i gabaritul compact sunt esen\u021biale. Geometria capetelor plane permite pozi\u021bionare axial\u0103 precis\u0103 \u00een cu\u0219ti \u0219i inele de cap\u0103t, sus\u021bin\u00e2nd func\u021bionarea stabil\u0103 \u00een sisteme bine aliniate precum cutii de viteze, transmisii, mi\u0219care liniar\u0103 \u0219i alte mecanisme de control al mi\u0219c\u0103rii.<\/p>\n<h3>\ud83d\udd27 Specifica\u021bii tehnice cheie<\/h3>\n<ul>\n<li><strong>Geometria capetelor<\/strong>: NRB = capete plane pe ambele p\u0103r\u021bi pentru localizare axial\u0103 exact\u0103 \u0219i ghidare simpl\u0103 a cu\u0219tii (vs. capete sferice).<\/li>\n<li><strong>Standarde<\/strong>: Fabricate conform DIN 5402-3 \/ ISO 3096 (clase dimensionale \u0219i de precizie).<\/li>\n<li><strong>Materiale<\/strong>: O\u021bel rulment crom 100Cr6 (AISI 52100); op\u021biuni inox (AISI 420C\/440C) \u0219i ceramic\u0103\/carburi tehnice la cerere.<\/li>\n<li><strong>Duritate (AISI 52100)<\/strong>: ~60\u201366 HRC dup\u0103 tratament termic.<\/li>\n<li><strong>Finisaj de suprafa\u021b\u0103<\/strong>: Suprafa\u021b\u0103 exterioar\u0103 (OD) rectificat\u0103 fin \u0219i superfinisat\u0103 pentru frecare redus\u0103 \u0219i b\u0103t\u0103i constante.<\/li>\n<li><strong>Dimensiuni tipice<\/strong>: Diametru Dw \u2248 1,0\u20136,0 mm; lungime Lw \u2248 5,8\u201359,8 mm (alte dimensiuni conform desen).<\/li>\n<li><strong>Toleran\u021be tipice<\/strong>: Diametru 0\/\u221210 \u00b5m; clase de precizie G2, G3, G5 (conform ISO 3096\/DIN 5402-3).<\/li>\n<\/ul>\n<h3>\u2705 Avantaje<\/h3>\n<ul>\n<li><strong>Capacitate radial\u0103 ridicat\u0103<\/strong> cu sec\u021biune minim\u0103 pentru proiecte compacte.<\/li>\n<li><strong>Pozi\u021bionare axial\u0103 precis\u0103<\/strong> \u0219i design simplu al buzunarelor cu\u0219tii datorit\u0103 capetelor plane.<\/li>\n<li><strong>Frecare redus\u0103 &amp; b\u0103t\u0103i constante<\/strong> datorit\u0103 sort\u0103rii stricte \u0219i calit\u0103\u021bii \u00eenalte a suprafe\u021bei.<\/li>\n<li><strong>Versatilitate de materiale<\/strong> pentru cerin\u021be de uzur\u0103, coroziune sau temperatur\u0103.<\/li>\n<\/ul>\n<h3>\ud83d\udd04 Aplica\u021bii pentru Role cu ace NRB cu capete plane<\/h3>\n<ul>\n<li><strong>Cu\u0219ti de ace &amp; ansambluri de rulmen\u021bi<\/strong> \u00een reductoare, angrenaje planetare &amp; armonice.<\/li>\n<li><strong>Transmisii auto<\/strong> \u0219i subansambluri compacte ale lan\u021bului cinematic.<\/li>\n<li><strong>Ghidoare liniare<\/strong>, ma\u0219ini-unelte, micromotoare \u0219i sisteme de mi\u0219care.<\/li>\n<\/ul>\n<h3>\ud83d\udce6 Clase &amp; dimensiuni disponibile<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.redhillballs.com\/company\/precision-grades\/\"><strong>Clase<\/strong>: G2\u2013G5<\/a> (conform DIN 5402-3 \/ ISO 3096); selec\u021bii speciale la cerere.<\/li>\n<li><strong>Domeniu diametre<\/strong>: ~1,0\u20136,0 mm (tip NRB); <strong>Lungimi<\/strong>: ~5,8\u201359,8 mm.<\/li>\n<li><strong>Tipuri \u00eenrudite<\/strong>: NRB (capete plane)<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-269\" src=\"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2021\/01\/needle-roller-nrb-flat-ends.jpg\" alt=\"\" width=\"400\" height=\"246\" srcset=\"https:\/\/www.redhillballs.com\/wp-content\/uploads\/2021\/01\/needle-roller-nrb-flat-ends.jpg 400w, https:\/\/www.redhillballs.com\/wp-content\/uploads\/2021\/01\/needle-roller-nrb-flat-ends-300x185.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udee0\ufe0f Role cu ace NRB cu capete plane \u2013 Role cu capete plate pentru ansambluri rigide \u0219i cu sarcini mari Role cu ace NRB cu capete plane sunt elemente cu v\u00e2rf plat utilizate \u00een cu\u0219ti de precizie \u0219i ansambluri de rulmen\u021bi cu ace, unde sarcinile radiale mari, frecarea redus\u0103 \u0219i gabaritul compact sunt esen\u021biale. Geometria [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6989,"parent":3223,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3227","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 cu ace NRB cu capete sferice \u2013 precizie \u0219i rezisten\u021b\u0103<\/title>\n<meta name=\"description\" content=\"Role cu ace NRB cu capete sferice asigur\u0103 mi\u0219care lin\u0103, durabilitate \u0219i stabilitate pentru rulmen\u021bi, mecanisme \u0219i aplica\u021bii de precizie.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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