Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Ensure uncompromised industrial machinery performance with the <strong>Double Row Cylindrical Roller Bearing NN3022 TN9/SP</strong>, a precision-engineered solution that eliminates costly downtime and quality risks. This SKF cylindrical roller bearing delivers exceptional radial load capacity and rotational accuracy, making it ideal for high-speed industrial applications where reliability is non-negotiable.</p><ul><li>Features a brass cage design (TN9) and SP precision class for minimized vibration (Z3V3 standard) and extended service life in heavy-duty operations</li><li>Maintains strict ISO 9001 compliance with full traceability documentation, streamlining customs clearance and quality verification processes</li><li>Separated inner/outer ring construction allows easy mounting and dismounting, reducing maintenance time and operational disruptions</li></ul>
Compatible with: Housings, adaptor sleeves, locking devices, SKF LGMT 2/3 grease, induction heaters, and SKF TMFT 36 fitting tools.
Formal quotation with SKF traceability cert within 24 hours · Sample orders available
24h Response
Quotation & Cert
60+ Countries
DDP/DAP/CIF
ISO 9001
Quality Certified
| Parameter | Value | Unit / Note |
|---|---|---|
| Bearing Series | -- | Cylindrical Roller Bearing |
| Bore Diameter (d) | -- | mm |
| Outer Diameter (D) | -- | mm |
| Width / Height (B) | -- | mm |
| Dynamic Load Rating (C) | -- | kN |
| Static Load Rating (Câ‚€) | -- | kN |
| Fatigue Limit Load (Pu) | -- | kN |
| Reference Speed | -- | r/min |
| Limiting Speed | -- | r/min |
| Mass | -- | kg |
| Clearance Class | C3 | ISO 281 |
| Cage Material | -- | -- |
| Sealing / Shield | -- | -- |
| Lubrication | Grease / Oil bath | -- |
| Operating Temp. Range | −30 to +120 °C | -- |
| Vibration Level | SKF E1 / Standard | -- |
| Misalignment Tolerance | -- | ° |
| Fit Recommendation (shaft) | -- | ISO |
| Fit Recommendation (housing) | -- | ISO |
| Replacement / Cross Ref. | -- | -- |
Engineered for demanding industrial environments, this SKF bearing series delivers reliable performance across a wide range of heavy-duty and precision applications.
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
Wind turbines, generators, gearboxes, and turbine main shafts.
Cranes, presses, rolling mills, and large industrial gearboxes.
Ship propulsion systems, deck machinery, and offshore platforms.
Kiln drives, ball mills, bucket elevators, and vibrating screens.
Paper machine rolls, dryer sections, and calender rolls.
Need Application Advice?
SKF-Certified Engineer
Selection · Failure analysis · Technical support
Every SKF bearing supplied by Dunyu Bearings adheres to SKF's global engineering standards -- from material science and heat treatment to precision tolerancing and noise classification.
Optimized internal geometry reduces friction and heat generation, extending service life by up to 50% compared to conventional designs. Ideal for high-speed and high-temperature applications.
Manufactured to ISO P0-P6 tolerance classes. Dimensional accuracy and running accuracy are 100% verified before shipment, with full batch traceability records.
Comprehensive sealing options: open, shielded (Z/2Z), rubber sealed (RS/2RS), and labyrinth variants. SKF V-rings and radial shaft seals available as integrated solutions.
LGMT 2/3 general purpose grease for most applications. LGEP 2 for heavy loads, LGHP 2 for high temperatures. SKF automatic lubricators (SYSTEM 24) for continuous re-lubrication.
Correct mounting is critical. SKF TMFT 36 fitting tool kit, induction heaters (TIH 030M/100M), and laser alignment tools ensure damage-free installation and maximum service life.
SKF Microlog and Enlight sensors for vibration, temperature, and speed monitoring. Enable predictive maintenance strategies to minimize unplanned downtime and optimize bearing replacement intervals.
| Parameter | Details |
|---|---|
| Model NO. | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
| Industry | Typical Equipment |
|---|---|
| General Machinery | Industrial Gearboxes, Machine Tool Spindles, Compressors |
| Manufacturing | Production Line Conveyors, Electric Motors, Pumps |
| Heavy Industry | Steel Rolling Mills, Mining Equipment, Material Handling Systems |
OEM manufacturers know the cost of bearing failure—unplanned downtime, production line halts, and missed delivery deadlines. Counterfeit bearings from gray markets often fail prematurely, while multi-tier distribution channels stretch lead times by 30–50%, making it nearly impossible to align with tight production schedules.
As an official SKF authorized distributor, we provide 100% genuine Double Row Cylindrical Roller Bearings with full traceability documentation. Our large centralized warehouse ensures immediate availability for industrial machinery OEM applications, eliminating the wait times common with traditional distribution networks. Each NN3022 TN9/SP bearing undergoesä¸¥æ ¼ quality checks compliant with ISO 9001 and SKF global standards, ensuring batch consistency for your production lines.
The NN3022 TN9/SP Double Row Cylindrical Roller Bearing is designed to handle heavy radial loads and high speeds in industrial machinery. Its separated inner and outer rings allow for easy mounting and dismounting, while the brass or steel cage ensures stable roller guidance even under dynamic operating conditions. With vibration levels graded Z1V1 to Z3V3 and clearance options from C0 to C5, this bearing adapts to diverse application requirements, from precision machine tools to heavy-duty gearboxes.
The 60-64 HRC hardness of the bearing steel construction provides exceptional wear resistance, extending service life in demanding environments. The non-aligning design ensures precise performance where shaft and housing alignment is critical, reducing vibration and noise. Available clearance grades (C0-C5) allow customization for thermal expansion needs, while the separated structure facilitates maintenance and replacement—key factors in minimizing downtime for industrial equipment OEMs and maintenance teams.
Choosing genuine SKF Cylindrical Roller Bearings over counterfeits reduces total cost of ownership significantly. Counterfeit bearings often lack proper material heat treatment, leading to early fatigue failure and potential damage to adjacent components. With our 100% authentic products, you avoid customs clearance delays due to incomplete traceability documents and eliminate liability risks from quality disputes. Each bearing comes with SKF certification, ensuring compliance with global export standards for your international shipments.
With over 60 countries served and a SKF-certified technical team, we offer more than just products. Our vertical distribution model eliminates middlemen, ensuring stable bulk supply and fast emergency delivery. We provide customized OEM schemes, including sample testing and small-batch trials, to verify performance before mass production. A dedicated account manager tracks your order from warehousing to delivery, with real-time visibility of every progress node. Our door-to-door global logistics ensure your NN3022 TN9/SP bearings arrive when and where you need them.
Every day of delayed production costs your business money. Send us your bearing model list, application parameters, and order volume now to receive a formal quotation within 24 hours. Our team can also assist with technical verification to ensure the NN3022 TN9/SP is the right fit for your industrial machinery.
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every NN3022 TN9/SP bearing comes with full traceability documentation and brand authorization certificates to verify authenticity.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will conduct free compatibility checks.
Q: What is the warranty policy?
A: All bearings come with SKF's原厂 warranty, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders from 1 unit, supporting both emergency maintenance needs and large-scale OEM production.
Q: How long does shipping take?
A:现货 items ship within 3-7 working days. We offer DHL, FedEx, UPS, air, and sea freight options to match your timeline requirements.
Q: How can I verify the bearing's authenticity?
A: Each bearing includes SKF's packaging withé˜²ä¼ªæ ‡ç¾, laser-etched markings, and traceability documents. We also provide official authorization letters upon request.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
As an officially authorized SKF distributor, every bearing we supply carries full documentation from SKF's global manufacturing network -- with complete batch traceability from factory to your facility.
Every shipment includes official SKF certification of origin, verifying product authenticity and manufacturing source.
Full production batch traceability maintained for minimum 5 years. Enables quality audit and failure investigation.
Verified annually by SKF. Our authorized status can be confirmed directly through the SKF distributor verification system.
All products carry SKF manufacturer warranty. Defective products are replaced or refunded -- no questions asked.
SKF QR code and holographic seal on every package. Verify authenticity instantly via SKF's official verification portal.
Authorized Distributor
Shanghai Dunyu Bearing
Official SKF Authorized Distributor
ISO 9001
SKF Authorized
Full Traceability
All products shipped in original SKF packaging with anti-counterfeit seal, QR code, and batch label intact.
Standard export carton for small orders. Custom wooden crates with moisture-proof lining for large/heavy shipments.
Sea freight (FCL/LCL), air freight, and express (DHL/FedEx/UPS). DDP, DAP, CIF, FOB terms all supported.
In-stock items: 1-3 days dispatch. Air freight: 3-7 days door-to-door. Sea freight: 15-35 days by destination.
| Region | Mode | Transit Time | Incoterms |
|---|---|---|---|
| Europe | Sea / Air / Express | 15-25d / 5-7d / 3-5d | DDP · DAP · CIF · FOB |
| North America | Sea / Air / Express | 20-30d / 5-8d / 3-5d | DDP · DAP · CIF · FOB |
| Southeast Asia | Sea / Air / Express | 7-15d / 3-5d / 2-4d | DDP · DAP · CIF · FOB |
| Middle East | Sea / Air / Express | 15-25d / 4-7d / 3-5d | DDP · DAP · CIF · FOB |
| Other Regions | Sea / Air / Express | Upon Confirmation | FOB · CIF · Negotiable |
Every product we supply comes with original SKF packaging including an anti-counterfeit holographic seal and QR code. You can scan the QR code on the SKF official website to verify authenticity. We also provide the SKF Certificate of Origin with every shipment, and our authorized distributor status can be verified directly through SKF's global distributor portal.
There is no strict minimum order quantity for standard catalog items. We support single-piece sample orders for testing and evaluation. For bulk procurement and long-term supply programs, we offer preferential pricing and dedicated inventory reservation. Contact our sales team for a customized procurement plan.
We guarantee a formal quotation with full SKF traceability certification within 24 business hours of receiving your inquiry. For urgent requirements, our team can typically respond within 2 hours during business hours (Mon-Sat, 9:00-18:00 GMT+8). Contact us via WhatsApp for fastest response.
Yes, we fully support DDP, DAP, CIF, and FOB incoterms across 60+ countries. Our logistics team handles all export documentation, customs clearance, and last-mile delivery. We work with leading freight forwarders and express carriers (DHL, FedEx, UPS) to ensure reliable and timely delivery.
Absolutely. Our SKF-certified engineers provide comprehensive technical support including bearing selection, application analysis, failure investigation, and lubrication planning. We can also assist with housing selection, mounting tool recommendations, and condition monitoring solutions. Technical support is available 24/7 via email and WhatsApp.
We accept T/T (bank transfer), L/C (letter of credit) for large orders, and Western Union. Standard terms are 30% deposit with 70% balance before shipment. For established long-term customers with framework agreements, we offer net payment terms. All transactions are conducted in USD or EUR.
All products carry the full SKF manufacturer warranty. In the unlikely event of a defective product, we will arrange replacement or full refund -- no questions asked. Our quality team will also conduct a failure analysis to identify the root cause and prevent recurrence. Please retain the original packaging and documentation for warranty claims.
Still have questions? Chat with our SKF engineers →
Send us your bearing model, quantity, and delivery requirements. Our SKF-certified team will respond with a formal quotation, traceability certificate, and logistics plan.