{"id":9997,"date":"2025-05-13T01:27:22","date_gmt":"2025-05-13T01:27:22","guid":{"rendered":"https:\/\/www.skf-eu.com\/?post_type=product&p=9997"},"modified":"2025-05-13T01:32:03","modified_gmt":"2025-05-13T01:32:03","slug":"double-row-angular-contact-ball-bearing","status":"publish","type":"product","link":"https:\/\/www.skf-eu.com\/ko\/product\/double-row-angular-contact-ball-bearing\/","title":{"rendered":"\ubcf5\uc5f4 \uc575\uade4\ub7ec \ucf58\ud0dd\ud2b8 \ubcfc \ubca0\uc5b4\ub9c1"},"content":{"rendered":"

Double-row angular contact ball bearing technology overview<\/h2>\n

A double row angular contact ball bearing<\/strong><\/a> uses a design with two rows of steel balls arranged symmetrically, which can simultaneously withstand radial and axial forces. Its unique structure gives it higher rigidity and load capacity, and is particularly suitable for industrial scenarios with strict requirements on operating accuracy and load-bearing performance. Compared with single-row models, the double-row design significantly improves the overall performance of the bearing, especially under high-speed operating conditions.<\/p>\n

\"Double<\/p>\n

\ud575\uc2ec \uc131\ub2a5 \uc774\uc810<\/h2>\n

Compound load bearing capacity<\/h3>\n

The synergistic effect of the double-row steel balls can simultaneously cope with radial and axial composite stresses, and the load capacity is increased by more than 40% compared with single-row bearings.<\/p>\n

Precision operation characteristics<\/h3>\n

The optimized contact angle design ensures low-friction operation and excellent temperature rise control, meeting the micron-level tolerance requirements of precision equipment.<\/p>\n

Long-term and durable design<\/h3>\n

Uniform load distribution reduces local wear, and with high-quality steel and heat treatment processes, the service life is extended by 30%-50%.<\/p>\n

Versatile adaptability<\/h3>\n

Standardized sizes cover a wide range of working conditions and support customized sealing solutions (contact\/non-contact sealing).<\/p>\n

Technical parameters of typical models<\/h2>\n\n\n\n\n\n\n\n\n
\ubaa8\ub378<\/span><\/th>\nInner diameter <\/span>
\n(mm)<\/span><\/th>\n		Outer diameter <\/span>
\n(mm)<\/span><\/th>\n		Thickness <\/span>
\n(mm)<\/span><\/th>\n		Dynamic load <\/span>
\n(kN)<\/span><\/th>\n		Static load<\/span>
\n (kN)<\/span><\/th>\n		Net weight<\/span>
\n (kg)<\/span><\/th>\n		Typical <\/span>
\napplication <\/span>
\nscenarios<\/span><\/th>\n<\/tr>\n<\/thead>\n
3207A<\/td>\n35<\/td>\n72<\/td>\n30<\/td>\n19.6<\/td>\n11.9<\/td>\n0.14<\/td>\nCNC spindle\/electric vehicle motor<\/td>\n<\/tr>\n
3308A<\/td>\n40<\/td>\n90<\/td>\n36<\/td>\n30.7<\/td>\n19.8<\/td>\n0.28<\/td>\nWind power gearbox\/industrial pump<\/td>\n<\/tr>\n
32206A<\/td>\n30<\/td>\n62<\/td>\n20<\/td>\n22.5<\/td>\n13.4<\/td>\n0.08<\/td>\nPrecision machine tool spindle<\/td>\n<\/tr>\n
7311B<\/td>\n55<\/td>\n120<\/td>\n29<\/td>\n55<\/td>\n36<\/td>\n0.56<\/td>\nAviation transmission system<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key parameter explanation<\/h2>\n

Dynamic\/static load ratio: reflects the safety margin of the bearing in the rotating and stationary state<\/p>\n

Compact design: small volume to achieve high load bearing, optimize equipment space utilization<\/p>\n

\uacf5\ud1b5 \ube0c\ub79c\ub4dc<\/h2>\n

SKF Double-row angular contact ball bearing
\nNSK Double-row angular contact ball bearing
\nFAG Double-row angular contact ball bearing
\nINA Double-row angular contact ball bearing
\nKOYO Double-row angular contact ball bearing
\nTIMKEN Double-row angular contact ball bearing
\nNACHI Double-row angular contact ball bearing
\nNTN Double-row angular contact ball bearing<\/p>\n

Key application areas<\/h2>\n

High-end equipment manufacturing<\/h3>\n

The five-axis linkage machine tool spindle adopts P4-level precision bearings to ensure 0.001mm machining accuracy<\/p>\n

\"Double<\/p>\n

New energy vehicles<\/h3>\n

The drive motor bearings must meet a speed of more than 20,000 rpm and withstand the axial electromagnetic force of the motor<\/p>\n

\"Double<\/p>\n

Clean energy equipment<\/h3>\n

The design life of the wind turbine main shaft bearing is 200,000 hours, adapting to the extremely cold environment of -40\u2103<\/p>\n

\ud56d\uacf5\uc6b0\uc8fc<\/h3>\n

The helicopter transmission system bearings are treated with special lubrication to achieve stable operation at 200\u2103<\/p>\n

Intelligent robots<\/h3>\n

The collaborative robot joint module adopts an ultra-quiet design with an operating noise of less than 45dB<\/p>\n

Technical questions and answers<\/h2>\n

Q1 What are the core advantages compared to single-row bearings?<\/strong>
\nThe double-row structure has an axial rigidity increase of more than 60%, and the bidirectional thrust load capacity has doubled, which is particularly suitable for working conditions with axial movement.<\/p>\n

Q2 Extreme operating temperature?<\/strong>
\nThe standard type is suitable for the range of -30\u2103~120\u2103, and the use of fully synthetic grease can be extended to -50\u2103~180\u2103 (such as aerospace-specific models).<\/p>\n

Q3 Key factors for selection?<\/strong>
\nNeed to focus on verification:<\/p>\n

Equivalent dynamic load calculation (Fr+Fa composite formula)<\/p>\n

Relationship between limiting speed and dmN value<\/p>\n

Lubrication method and relubrication cycle<\/p>\n

Q4 Maintenance points?<\/strong><\/p>\n

Check the grease status every 2000 hours of operation<\/p>\n

Use a laser alignment instrument to ensure that the installation eccentricity is less than 0.02mm<\/p>\n

The vibration monitoring warning value is set to 4.5mm\/s<\/p>\n

If you have any questions, please see our \uc575\uade4\ub7ec \ucf58\ud0dd\ud2b8 \ubcfc \ubca0\uc5b4\ub9c1<\/a>\u00a0<\/strong>Catalog for answer, and if you have futher questions, please seek for our sales representatives for help!<\/p>","protected":false},"excerpt":{"rendered":"

Main applications<\/h3>\n

Machine tool spindles (CNC machining centers, grinders)<\/p>\n

Automotive drive systems (motors, gearboxes, wheel hubs)<\/p>\n

Wind power generation equipment (spindles, gearboxes)<\/p>\n

Industrial robots (spherical bearings, reducers)<\/p>\n

Aerospace (aircraft engines, landing gears)<\/p>\n

Advantages and features<\/h3>\n

\u2705 High load capacity-double-row structure improves radial and axial load capacity
\n\u2705 High rigidity-optimized contact angle design, reduced deformation, and improved precision
\n\u2705 High-speed performance-low friction design, suitable for high-speed working conditions
\n\u2705 Long life-optimized load distribution, reduced wear, and extended service life
\n\u2705 Versatility-suitable for complex loads, high precision and harsh environments<\/p>","protected":false},"featured_media":9999,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[256,244],"product_tag":[290],"yoast_head":"\nChina Wholesale Double row angular contact ball bearing Supplier - Comdale Bearing<\/title>\n<meta name=\"description\" content=\"As Professional Double row angular contact ball 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\/ko\/product\/double-row-angular-contact-ball-bearing\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"China Wholesale Double row angular contact ball bearing Supplier - Comdale Bearing\" \/>\n<meta property=\"og:description\" content=\"As Professional Double row angular contact ball bearing distributor , Comdale supply Roller Bearings, Ball Bearings, Plain Bearing, Slewing Ring Bearings, Combined Bearings, Linear Bearings\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.skf-eu.com\/ko\/product\/double-row-angular-contact-ball-bearing\/\" \/>\n<meta property=\"og:site_name\" content=\"Comdale Bearing\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-13T01:32:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Double-row-angular-contact-ball-bearings.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"512\" \/>\n\t<meta property=\"og:image:height\" content=\"503\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\uc608\uc0c1 \ub418\ub294 \ud310\ub3c5 \uc2dc\uac04\" \/>\n\t<meta name=\"twitter:data1\" content=\"4\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.skf-eu.com\/product\/double-row-angular-contact-ball-bearing\/\",\"url\":\"https:\/\/www.skf-eu.com\/product\/double-row-angular-contact-ball-bearing\/\",\"name\":\"China Wholesale Double row angular contact ball bearing Supplier - 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