{"id":10337,"date":"2025-05-29T01:48:25","date_gmt":"2025-05-29T01:48:25","guid":{"rendered":"https:\/\/www.skf-eu.com\/?post_type=product&p=10337"},"modified":"2025-05-29T02:10:29","modified_gmt":"2025-05-29T02:10:29","slug":"dry-rolling-bearings","status":"publish","type":"product","link":"https:\/\/www.skf-eu.com\/ru\/product\/dry-rolling-bearings\/","title":{"rendered":"\u0421\u0443\u0445\u0438\u0435 \u043f\u043e\u0434\u0448\u0438\u043f\u043d\u0438\u043a\u0438 \u043a\u0430\u0447\u0435\u043d\u0438\u044f"},"content":{"rendered":"

Analysis of Dry Rolling Bearing Technology<\/h2>\n

1. Product Introduction<\/h3>\n

Dry Rolling Bearing<\/strong> is a rolling bearing that does not require external lubrication and relies on solid lubricating materials or surface treatment technology to achieve low-friction operation. Its core features include<\/p>\n

Lubrication-free design: self-lubricating coating, composite materials, or special heat treatment processes are used to avoid reliance on grease or lubricating oil.<\/p>\n

Low-friction performance: friction resistance and wear are reduced by optimizing the surface of the raceway and rolling element.<\/p>\n

Extreme environment resistance: suitable for scenes with high temperature, vacuum, strong corrosion, or high cleanliness requirements.<\/p>\n

Typical structural types:<\/p>\n

Solid lubricating coated bearings: MoS\u2082, PTFE, or DLC (diamond-like carbon) coating is sprayed on the surface of the raceway or rolling element.<\/p>\n

Ceramic hybrid bearings: Si\u2083N\u2084 or ZrO\u2082 ceramic balls are used with steel or stainless steel cages.<\/p>\n

Self-lubricating bearings: solid lubricants (such as graphite) are embedded in the cage and slowly released during operation.<\/p>\n

\"Dry<\/p>\n\n\n\n\n\n\n\n\n\n\n
\u041c\u043e\u0434\u0435\u043b\u044c<\/th>\n\u0412\u043d\u0443\u0442\u0440\u0435\u043d\u043d\u0438\u0439 \u0434\u0438\u0430\u043c\u0435\u0442\u0440 (\u043c\u043c)<\/th>\n\u0412\u043d\u0435\u0448\u043d\u0438\u0439 \u0434\u0438\u0430\u043c\u0435\u0442\u0440 (\u043c\u043c)<\/th>\n\u0428\u0438\u0440\u0438\u043d\u0430 (\u043c\u043c)<\/th>\n\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/th>\n\u0425\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/th>\nApplication\u00a0\u00a0\u00a0Scenarios<\/th>\n<\/tr>\n<\/thead>\n
DRB-1010<\/td>\n10<\/td>\n20<\/td>\n10<\/td>\nHigh-temperature\u00a0\u00a0\u00a0ceramic<\/td>\nHigh\u00a0\u00a0\u00a0temperature resistance, low friction coefficient<\/td>\nHigh-temperature\u00a0\u00a0\u00a0kilns, chemical equipment<\/td>\n<\/tr>\n
DRB-2020<\/td>\n20<\/td>\n30<\/td>\n15<\/td>\nNickel-based\u00a0\u00a0\u00a0alloy<\/td>\nCorrosion\u00a0\u00a0\u00a0resistance, excellent oxidation resistance<\/td>\nPetrochemical\u00a0\u00a0\u00a0industry, marine engineering<\/td>\n<\/tr>\n
DRB-3030<\/td>\n30<\/td>\n40<\/td>\n20<\/td>\nSilicon\u00a0\u00a0\u00a0carbide ceramic<\/td>\nHigh\u00a0\u00a0\u00a0hardness, excellent wear resistance<\/td>\nDusty\u00a0\u00a0\u00a0environments, mining equipment<\/td>\n<\/tr>\n
DRB-4040<\/td>\n40<\/td>\n60<\/td>\n25<\/td>\nTitanium\u00a0\u00a0\u00a0alloy + coating<\/td>\nLightweight,\u00a0\u00a0\u00a0high strength, low friction<\/td>\nAerospace,\u00a0\u00a0\u00a0precision equipment<\/td>\n<\/tr>\n
DRB-5050<\/td>\n50<\/td>\n70<\/td>\n30<\/td>\nHard\u00a0\u00a0\u00a0chrome steel<\/td>\nHigh\u00a0\u00a0\u00a0strength, low friction, no lubrication needed<\/td>\nHigh-load\u00a0\u00a0\u00a0machinery, heavy equipment<\/td>\n<\/tr>\n
\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440 \u041e\u0431\u044a\u044f\u0441\u043d\u0435\u043d\u0438\u0435:
\nInner Diameter, Outer Diameter, Width: These represent the key installation\u00a0\u00a0\u00a0dimensions of the bearing.Material: The base material of the bearing and any special coatings (if\u00a0\u00a0\u00a0applicable).Features: Key performance characteristics of the bearing under dry friction\u00a0\u00a0\u00a0conditions.<\/p>\n

Application Scenarios: Recommended fields for application.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. Product application analysis<\/h3>\n

(1) Industrial machinery<\/p>\n

Food packaging equipment: avoid lubricant contamination and meet FDA\/NSF certification requirements.<\/p>\n

Textile machinery: reduce fiber adsorption and reduce maintenance frequency.<\/p>\n

(2) Transportation<\/p>\n

Electric vehicle motor bearings: reduce the impact of grease aging and improve high temperature stability.<\/p>\n

Aerospace: suitable for vacuum or extreme temperature environments (such as satellite deployment mechanisms).<\/p>\n

(3) Energy and heavy industry<\/p>\n

Wind turbine yaw system: salt spray corrosion resistance and maintenance-free design.<\/p>\n

Steel continuous casting equipment: stable operation in high temperature environment (up to 400\u00b0C or above).<\/p>\n

(4) Medical and semiconductor<\/p>\n

Medical robots: no particle shedding, meet clean room standards (ISO Class 5+).<\/p>\n

Wafer handling robot: ultra-high precision, avoid lubricant volatilization contamination.<\/p>\n

3. Summary<\/h3>\n

Advantages Limitations
\n\u2714 Maintenance-free, lower operating costs \u2716 High initial cost
\n\u2714 Resistant to high temperature, vacuum, and corrosive environments \u2716 High-speed performance is slightly inferior to oil lubrication
\n\u2714 No pollution, suitable for clean scenes \u2716 Targeted selection is required (PV value)
\nApplication scenario priority:<\/p>\n

Recommended use: extreme environments, oil-free requirements, and long-term maintenance-free occasions.<\/p>\n

Use with caution: ultra-high speed (>10,000 rpm), frequent impact load conditions.<\/p>\n

4. FAQ (Frequently Asked Questions)<\/h3>\n

Q1: What is the life of dry friction bearings?
\nA1: The life depends on the load and speed, usually 60%~80% of oil-lubricated bearings, but it can be significantly better than traditional bearings in high temperature\/oil-free environments.<\/p>\n

Q2: Is a running-in period required?
\nA2: Some coated bearings require a short-term running-in (<50 hours) to form a stable transfer film, and ceramic bearings can be used directly.<\/p>\n

Q3: Can it replace all lubricated bearings?
\nA3: No, the working conditions need to be evaluated (for example, oil lubrication is still recommended for high speed and heavy load).<\/p>\n

Q4: How to clean dry friction bearings?<\/p>\n

A4: Use lint-free cloth or ultrasonic cleaning (to avoid strong solvents damaging the coating).<\/p>\n

Q5: What is the maximum tolerable temperature?<\/p>\n

A5: Ordinary coated bearings are about 250\u2103, and ceramic bearings can reach 800\u2103 (high temperature resistant cages are required).<\/p>\n

5. Selection suggestions<\/h3>\n

Step 1: Identify the environment (temperature, medium, cleanliness).<\/p>\n

Step 2: Calculate the PV value (pressure \u00d7 speed) and match the bearing load capacity.<\/p>\n

Step 3: Select coating\/material (such as MoS\u2082 is suitable for vacuum, PTFE is resistant to chemical corrosion).<\/p>\n

Example: Semiconductor equipment can choose DLC coated bearings, and wind power equipment should use ceramic hybrid bearings.\\<\/p>\n

\"SKF<\/p>","protected":false},"excerpt":{"rendered":"

Product Features and Advantages
\nMaintenance-free operation<\/p>\n

No need to add grease or lubricant, reducing maintenance costs, suitable for difficult-to-lubricate occasions.<\/p>\n

Resistant to extreme environments<\/p>\n

Adapt to high temperature (up to 800\u00b0C), vacuum, strong corrosion or high cleanliness requirements (such as medical and semiconductor industries).<\/p>\n

Low friction and wear resistance<\/p>\n

Adopt MoS\u2082, PTFE, DLC coating or ceramic rolling elements, low friction coefficient and long life.<\/p>\n

No pollution<\/p>\n

No grease volatilization or shedding, in line with the cleanliness standards of food, medicine and other industries (FDA\/ISO Class 5+).<\/p>\n

High reliability<\/p>\n

Avoids failures caused by lubrication failure of traditional bearings, suitable for long-term unmanned maintenance scenarios (such as wind power and aerospace).<\/p>\n

See more at \u0421\u0443\u0445\u043e\u0439 \u043f\u043e\u0434\u0448\u0438\u043f\u043d\u0438\u043a<\/strong><\/a> Catalog!<\/p>","protected":false},"featured_media":10340,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_cat":[304,249],"product_tag":[305],"yoast_head":"\nChina Wholesale Dry Rolling Bearings Supplier - Comdale Bearing<\/title>\n<meta name=\"description\" content=\"As Professional Dry Rolling 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\/ru\/product\/dry-rolling-bearings\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"China Wholesale Dry Rolling Bearings Supplier - Comdale Bearing\" \/>\n<meta property=\"og:description\" content=\"As Professional Dry Rolling Bearings 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\/ru\/product\/dry-rolling-bearings\/\" \/>\n<meta property=\"og:site_name\" content=\"Comdale Bearing\" \/>\n<meta property=\"article:modified_time\" content=\"2025-05-29T02:10:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.skf-eu.com\/wp-content\/uploads\/2025\/05\/Dry-Rolling-Bearing-1.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"2000\" \/>\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=\"\u041f\u0440\u0438\u043c\u0435\u0440\u043d\u043e\u0435 \u0432\u0440\u0435\u043c\u044f \u0434\u043b\u044f \u0447\u0442\u0435\u043d\u0438\u044f\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 \u043c\u0438\u043d\u0443\u0442\u044b\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.skf-eu.com\/product\/dry-rolling-bearings\/\",\"url\":\"https:\/\/www.skf-eu.com\/product\/dry-rolling-bearings\/\",\"name\":\"China Wholesale Dry Rolling Bearings Supplier - 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