{"id":10199,"date":"2025-05-22T06:50:34","date_gmt":"2025-05-22T06:50:34","guid":{"rendered":"https:\/\/www.skf-eu.com\/?post_type=product&#038;p=10199"},"modified":"2025-05-22T06:50:34","modified_gmt":"2025-05-22T06:50:34","slug":"four-row-tapered-roller-bearings","status":"publish","type":"product","link":"https:\/\/www.skf-eu.com\/it\/prodotto\/four-row-tapered-roller-bearings\/","title":{"rendered":"Cuscinetti a rulli conici a quattro corone"},"content":{"rendered":"<h2><strong>Panoramica dei cuscinetti a rulli conici a quattro file<\/strong><\/h2>\n<p>Quattro file <a href=\"https:\/\/www.skf-eu.com\/category\/roller-bearings\/tapered-roller-bearings\/\"><strong>cuscinetti a rulli conici<\/strong><\/a> adottano il design dei rulli conici e degli angoli di contatto tra anello interno ed esterno, in grado di sopportare contemporaneamente carichi radiali e assiali compositi. Rispetto ai cuscinetti a una o due corone, la struttura a quattro corone di rulli migliora notevolmente la capacit\u00e0 di carico ed \u00e8 adatta a scenari industriali con requisiti di carico elevato, alta velocit\u00e0 e alta precisione.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10205 aligncenter\" data-src=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-1.webp\" alt=\"Four-row Tapered Roller Bearings for Machine tool spindle\" width=\"583\" height=\"337\" srcset=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-1.webp 583w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-1-480x277.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 583px, 100vw\" \/><\/p>\n<h2><strong>Caratteristiche principali<\/strong><\/h2>\n<p><strong>Prestazioni di carico elevatissime<\/strong><br \/>\nQuattro file di rulli distribuiscono uniformemente il carico, migliorano significativamente i limiti di carico radiale e assiale del cuscinetto e sono adatti a condizioni di lavoro estreme.<\/p>\n<p><strong>Eccellente resistenza all'usura<\/strong><br \/>\nIl design ottimizzato dell'angolo di contatto del rullo conico riduce le sollecitazioni locali, riduce l'usura e prolunga la durata.<\/p>\n<p><strong>Ampia applicabilit\u00e0<\/strong><br \/>\nHa una capacit\u00e0 di carico sia radiale che assiale e si adatta ad ambienti di forza complessi, come carichi d'urto o sollecitazioni alternate.<\/p>\n<p><strong>Protezione affidabile della tenuta<\/strong><br \/>\nLa struttura di tenuta standard o antipolvere blocca efficacemente gli agenti inquinanti e garantisce un funzionamento stabile dei cuscinetti in ambienti difficili come polvere e umidit\u00e0.<\/p>\n<h2><strong>Confronto tra i parametri di un modello tipico<\/strong><\/h2>\n<table class=\"tg\" style=\"border-collapse: collapse; border-spacing: 0;\">\n<thead>\n<tr>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Modello<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Diametro interno (mm)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Diametro esterno (mm)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Larghezza (mm)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Carico dinamico (kN)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Carico statico (kN)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Peso (kg)<\/th>\n<th style=\"font-family: Arial, sans-serif; font-size: 14px; font-weight: bold; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Applicazione principale<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">31330X<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">150<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">320<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">90<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">315<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">540<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">18<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Sistema di trasmissione industriale<\/td>\n<\/tr>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">33210X<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">50<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">90<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">26.25<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">51<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">96<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">0.8<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Trasporto automobilistico e ferroviario<\/td>\n<\/tr>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">30330<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">150<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">320<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">68<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">292<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">535<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">12<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Attrezzature metallurgiche, macchine utensili di precisione<\/td>\n<\/tr>\n<tr>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">32036X<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">180<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">280<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">58<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">276<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">477<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">10.5<\/td>\n<td style=\"font-family: Arial, sans-serif; font-size: 14px; overflow: hidden; padding: 10px 5px; text-align: center; vertical-align: top; word-break: normal; border: 1px solid black;\">Apparecchiature eoliche, gruppi elettrogeni<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Descrizione dei parametri<\/strong><\/p>\n<p>Carico dinamico\/statico: riflette la capacit\u00e0 di carico massima del cuscinetto rispettivamente in stato rotante e stazionario.<\/p>\n<p>Dimensioni e peso: influenzano direttamente il design della struttura dell'apparecchiatura e lo spazio di installazione.<\/p>\n<h2><strong>Marchi comuni<\/strong><\/h2>\n<p>SKF Cuscinetti a quattro corone di rulli conici<br \/>\nCuscinetti a rulli conici a quattro corone di NSK<br \/>\nNTN Cuscinetti a rulli conici a quattro corone<br \/>\nFAG Cuscinetti a rulli conici a quattro corone<br \/>\nCuscinetti a rulli conici a quattro corone INA<br \/>\nKOYO Cuscinetti a rulli conici a quattro corone<br \/>\nTIMKEN Cuscinetti a rulli conici a quattro corone<br \/>\nNACHI Cuscinetti a rulli conici a quattro corone<\/p>\n<h2><strong>Aree di applicazione tipiche<\/strong><\/h2>\n<p>Produzione di automobili: componenti chiave come gli assi di trasmissione e le unit\u00e0 mozzo per far fronte a rotazioni ad alta velocit\u00e0 e a sollecitazioni composite.<\/p>\n<p>Trasporto ferroviario: assi di locomotive e riduttori per soddisfare requisiti di carico elevato e durata a lungo termine.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10203 aligncenter\" data-src=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Gearbox-.webp\" alt=\"Four-row Tapered Roller Bearings\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Gearbox-.webp 1200w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Gearbox--980x551.webp 980w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Gearbox--480x270.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1200px, 100vw\" \/><\/p>\n<p>Industria metallurgica: sistema di rulli per laminatoi, impianti di colata continua, resistenza alle alte temperature, ai carichi pesanti e agli urti.<\/p>\n<p>Apparecchiature energetiche: albero principale della turbina eolica, turbina idraulica, adattabile a carichi variabili e ad ambienti difficili.<\/p>\n<p>Macchine utensili di precisione: sistema di supporto del mandrino per garantire una lavorazione di alta precisione e un funzionamento a basse vibrazioni.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10204 size-full aligncenter\" data-src=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Machine-tool-spindle1.webp\" alt=\"Four-row Tapered Roller Bearings for Machine tool spindle\" width=\"1078\" height=\"984\" srcset=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Machine-tool-spindle1.webp 1078w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Machine-tool-spindle1-980x895.webp 980w, https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Four-row-Tapered-Roller-Bearings-for-Machine-tool-spindle1-480x438.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1078px, 100vw\" \/><\/p>\n<h2><strong>Analisi dei problemi comuni<\/strong><\/h2>\n<p>Q1: Intervallo di temperatura applicabile?<br \/>\nI modelli convenzionali possono lavorare in un ambiente da -20\u2103 a 120\u2103, mentre la lubrificazione o i materiali speciali possono essere estesi a temperature pi\u00f9 elevate.<\/p>\n<p>D2: Come effettuare una manutenzione efficace?<\/p>\n<p>Controllare regolarmente lo stato di lubrificazione e sostituire il grasso in tempo.<\/p>\n<p>Pulire l'ambiente circostante il cuscinetto per evitare l'ingresso di impurit\u00e0.<\/p>\n<p>Verificare la presenza di rumori anomali, aumenti di temperatura o vibrazioni e risolvere i guasti in anticipo.<\/p>\n<p>D3: Come si determina la capacit\u00e0 di carico?<br \/>\nPer la selezione e il calcolo \u00e8 necessario considerare in modo completo il carico dinamico (Cr), il carico statico (Cor) e le condizioni di lavoro effettive (velocit\u00e0, direzione della forza).<\/p>\n<p>D4: Supporta il funzionamento ad alta velocit\u00e0?<br \/>\n\u00c8 adatto a scenari ad alta velocit\u00e0, ma deve essere combinato con lubrificanti ad alte prestazioni e controllare l'aumento della temperatura per evitare il degrado delle prestazioni.<\/p>\n<h2><strong>Conclusione<\/strong><\/h2>\n<p>Quattro file coniche <a href=\"https:\/\/www.skf-eu.com\/category\/roller-bearings\/\"><strong>cuscinetti a rulli<\/strong><\/a> sono la scelta ideale per le apparecchiature con carichi pesanti, ad alta velocit\u00e0 e di precisione, grazie alla loro elevata rigidit\u00e0, alla lunga durata e all'adattabilit\u00e0 a molteplici condizioni di lavoro. Grazie a una selezione scientifica e a una manutenzione standardizzata, \u00e8 possibile massimizzare l'efficienza operativa delle apparecchiature, soddisfacendo le esigenze principali di settori chiave come l'automobile, l'energia e la metallurgia.<\/p>","protected":false},"excerpt":{"rendered":"<p><strong>Quattro file<\/strong> <strong>cuscinetti a rulli conici<\/strong> adottano il design dei rulli conici e degli angoli di contatto tra anello interno ed esterno, in grado di sopportare contemporaneamente carichi radiali e assiali compositi. Rispetto ai cuscinetti a una o due corone, la struttura a quattro corone di rulli migliora notevolmente la capacit\u00e0 di carico ed \u00e8 adatta a scenari industriali con requisiti di carico elevato, alta velocit\u00e0 e alta precisione.<\/p>","protected":false},"featured_media":10200,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[240,243],"product_tag":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>China Wholesale Four-row Tapered Roller Bearings Supplier - Comdale Bearing<\/title>\n<meta name=\"description\" content=\"As Professional Four-row Tapered Roller Bearings distributor , Comdale supply Roller Bearings, Ball Bearings, Plain Bearing, Slewing Ring Bearings, Combined Bearings, Linear Bearings\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.skf-eu.com\/it\/prodotto\/four-row-tapered-roller-bearings\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"China Wholesale Four-row Tapered Roller Bearings Supplier - 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