{"id":10006,"date":"2025-05-13T01:40:31","date_gmt":"2025-05-13T01:40:31","guid":{"rendered":"https:\/\/www.skf-eu.com\/?post_type=product&p=10006"},"modified":"2025-05-13T01:41:16","modified_gmt":"2025-05-13T01:41:16","slug":"four-row-spherical-roller-bearing","status":"publish","type":"product","link":"https:\/\/www.skf-eu.com\/pt\/produto\/four-row-spherical-roller-bearing\/","title":{"rendered":"rolamento de rolos esf\u00e9ricos de quatro carreiras"},"content":{"rendered":"

\ud83d\udd29 Structure and features<\/h2>\n

The four-row spherical roller bearing consists of an outer ring, an inner ring, a cage and rollers. The outer ring adopts a spherical raceway design, and its curvature center coincides with the bearing rotation center, giving the bearing an automatic self-aligning function, which can effectively compensate for the deflection caused by the installation deviation of the shaft and the bearing seat or the bending of the shaft.<\/p>\n

\ud83d\udcc8 Model and specification<\/h2>\n

The model of the four-row spherical roller bearing usually includes the following elements:<\/p>\n

Basic model: such as 22300, 23000 and other series.<\/p>\n

Inner ring design identification: for example, C (no rib structure, with stamped cage), CA (with double-sided ribs, with solid cage).<\/p>\n

Outer ring feature identification: such as W33 (outer ring with oil groove and three oil holes).<\/p>\n

Accuracy and clearance code: P6 (accuracy grade), C3 (radial clearance range).<\/p>\n

Temperature resistance grade: S1 (resistant to high temperature of 200\u00b0C), S2 (resistant to high temperature of 250\u00b0C).
\nThe selection needs to be considered comprehensively in combination with the equipment working conditions and technical parameters.<\/p>\n

\"Four-row<\/p>\n

Marcas comuns<\/h2>\n

SKF Spherical Roller Bearing<\/strong><\/a> four-row
\nNSK four-row spherical roller bearing
\nFAG four-row spherical roller bearing
\nKOYO four-row spherical roller bearing
\nNTN four-row spherical roller bearing
\nTIMKEN four-row spherical roller bearing
\nNACHI four-row spherical roller bearing
\nINA four-row spherical roller bearing<\/p>\n

\ud83c\udfd7\ufe0f Application areas<\/h2>\n

This bearing is widely used in the following scenarios due to its high load-bearing and self-aligning capabilities:<\/p>\n

Metallurgical equipment<\/strong>: heavy equipment such as rolling mills and continuous casting machines.<\/p>\n

\"Four-row<\/p>\n

Mining machinery<\/strong>: harsh environments such as crushing equipment, screening machines and conveying systems.<\/p>\n

Papermaking industry<\/strong>: high-temperature, high-speed and heavy-loaded parts such as drying cylinders and calender rollers.<\/p>\n

Textile machinery<\/strong>: fiber processing equipment such as spinning machines and looms.<\/p>\n

Power transmission<\/strong>: gearboxes, crane reduction devices, etc.<\/p>\n

Fluid machinery<\/strong>: rotating systems such as centrifugal fans and compressors.<\/p>\n

Agricultural machinery<\/strong>: field equipment such as tillers and harvesters.<\/p>\n

Marine engineering<\/strong>: axial load support parts such as propeller shafting.<\/p>\n

\"Four-row<\/p>\n

\u2754 FAQ<\/h2>\n

Q1: What are the typical application conditions for this type of bearing?
\nA1: Suitable for occasions with heavy loads, vibrations or poor shaft alignment, such as mining equipment, metallurgical rolling mills, etc.<\/p>\n

Q2: What factors should be considered for selection?
\nA2: Parameters such as load characteristics, speed range, temperature rise limit and installation space need to be comprehensively evaluated.<\/p>\n

Q3: What lubrication solutions are recommended?
\nA3: Grease lubrication or circulating oil lubrication can be selected according to the working conditions, and special lubricants are required for high temperature environments.<\/p>\n

Q4: How to improve bearing durability?
\nA4: The focus includes regular replenishment of lubricants, prevention of contaminants, monitoring of operating loads, and timely replacement of failed parts.<\/p>\n

Please see the Rolamento autocompensador de rolos<\/a>\u00a0<\/strong>Catalog for more information!<\/p>","protected":false},"excerpt":{"rendered":"

Principais aplica\u00e7\u00f5es<\/h3>\n

Heavy industry: rolling mills, continuous casting machines<\/p>\n

Mining machinery: crushers, vibrating screens<\/p>\n

Papermaking equipment: drying cylinders, calendering rollers<\/p>\n

Textile machinery: spinning machines, looms<\/p>\n

Reducers and gearboxes: high-load transmission systems<\/p>\n

Ship propulsion: propeller shaft support<\/p>\n

Principais vantagens<\/h3>\n

\u2705 Automatic self-aligning – adapt to shaft deflection and reduce friction and wear
\n\u2705 High load capacity – four-row roller design, withstands extremely heavy loads
\n\u2705 Anti-vibration and shock – suitable for harsh working conditions
\n\u2705 Long life – optimize roller contact stress and improve durability
\n\u2705 Multiple configurations available – different lubrication, sealing and material solutions<\/p>","protected":false},"featured_media":10007,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[241,240],"product_tag":[291],"yoast_head":"\nChina Wholesale four-row spherical roller bearing Supplier - Comdale Bearing<\/title>\n<meta name=\"description\" content=\"As Professional four-row spherical roller bearing 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\/pt\/produto\/four-row-spherical-roller-bearing\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"China Wholesale four-row spherical roller bearing Supplier - 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