Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Ensure your industrial machinery runs with uncompromised precision and reliability using <strong>SKF Cylindrical Roller Bearings with Brass Cage</strong>. Designed for high radial load applications, these NJ2309E and NU2318ECM models deliver consistent performance even in demanding operating conditions, reducing unexpected downtime and keeping your production schedule on track.</p><ul><li>Brass cage construction enhances heat dissipation and durability, ideal for continuous-duty machinery requiring long service life</li><li>Precision rating up to P2 ensures minimal vibration (V1-V4 class) for smoother operation and reduced wear on connected components</li><li>Direct from authorized SKF distributor with full traceability documentation, eliminating concerns about counterfeit risks or compliance issues</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 Bearings |
| Bore Diameter (d) | -- | mm |
| Outer Diameter (D) | -- | mm |
| Width / Height (B) | -- | mm |
| Dynamic Load Rating (C) | -- | kN |
| Static Load Rating (C₀) | -- | 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 Designation | NJ2309E, NJ207ECP/C3, NU2318ECM |
| Product Type | Cylindrical Roller Bearings |
| Bore Diameter (d) | 35mm |
| Outside Diameter (D) | 72mm |
| Width (B) | 17mm |
| Outer Dimension Range | 35mm-180mm |
| Material | Bearing Steel, Chrome Steel, Ceramic, Nylon |
| Cage Material | Iron Cage/Brass Cage/Nylon Cage |
| Precision Rating | P0, P6, P5, P4, P2 |
| Load Direction | Radial Bearing |
| Structure | Separated, Cylindrical |
| Aligning Feature | Non-Aligning Bearings |
| Seals Type | Open |
| Lubrication Type | Oil, Grease, Dry |
| Vibration Class | V1, V2, V3, V4 |
| Standard Compliance | DIN, GB, ISO, JIS |
| Trademark | SKF |
| Origin | Sweden |
| HS Code | 8482500090 |
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | Gearboxes, Electric Motors, Pumps, Fans |
| Manufacturing | CNC Machine Tools, Conveyors, Compressors |
| Automotive | Transmissions, Axles, Engine Components |
| Rail Transit | Locomotive Gearboxes, Bogie Systems |
| General Machinery | Printing Presses, Textile Machinery, Paper Mills |
OEM manufacturers across Europe, North America, and Southeast Asia consistently face critical procurement challenges: counterfeit bearings from gray markets causing unexpected equipment failures, multi-tier distribution channels extending lead times by 30-50%, and inadequate technical support leaving teams to resolve installation and performance issues independently. These pain points directly impact production schedules, increasing maintenance costs and risking line shutdowns.
As an official SKF authorized distributor, Shanghai Dunyu Bearing Co., Ltd. addresses these challenges with SKF Cylindrical Roller Bearings NJ2309E and NU2318ECM—precision-engineered solutions for industrial machinery. Our large centralized warehouse ensures stable bulk supply, while global door-to-door logistics enable emergency delivery to keep your production lines running. Each bearing comes with complete traceability documentation, eliminating customs clearance obstacles and quality disputes.
These cylindrical roller bearings excel in high-load, high-speed industrial applications. Designed as separated, non-aligning radial bearings, they accommodate heavy radial loads while maintaining operational stability in gearboxes, electric motors, and conveyor systems. The brass cage option enhances heat dissipation and durability, making these bearings ideal for continuous operation in manufacturing facilities, where reliability directly impacts productivity.
The performance of SKF Cylindrical Roller Bearings is defined by critical engineering parameters. Precision ratings from P0 to P2 allow customization for applications requiring tight tolerances, such as CNC machine spindles where minimal vibration (V1-V4 classes) is essential. The open seal design facilitates lubrication flexibility—oil, grease, or dry operation—while the separated structure simplifies maintenance and replacement. With outer dimensions ranging from 35mm to 180mm, these bearings meet diverse industrial machinery requirements, ensuring compatibility with standard equipment designs.
Choosing genuine SKF bearings over counterfeit alternatives reduces total cost of ownership significantly. Unauthorized bearings often fail prematurely, leading to unplanned downtime, repair labor expenses, and potential damage to adjacent components. In contrast, our ISO 9001-compliant quality management—aligned with SKF global standards—ensures consistent batch performance. Each bearing undergoes rigorous testing before shipment, minimizing the risk of early failure and protecting your production investments.
Our commitment to reliability is backed by tangible credentials: 100% genuine SKF products with official certification, serving over 60 countries worldwide. Our SKF-certified technical team provides free model selection support based on working conditions, installation guidance, and failure analysis—eliminating the need for independent technical resources. With a production capacity of 1,000,000 units annually, we support both small-batch trial orders and large-scale OEM requirements, backed by a dedicated account manager for full-cycle visibility from order to delivery.
Don’t let bearing-related delays disrupt your production schedule. Send us your model list, application parameters, and order volume today—our team will issue a formal quotation with certification documents within 24 hours. With stock available for immediate dispatch, we help you minimize downtime and maintain operational continuity.
Q: Are these SKF bearings 100% genuine?
A: Yes, as an official SKF authorized distributor, all products are sourced directly from SKF and come with complete traceability certificates and brand authorization documentation.
Q: How can I confirm the correct bearing model for my equipment?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will conduct free model selection verification.
Q: What is the warranty policy for these bearings?
A: All bearings come with SKF's standard manufacturer warranty, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, supporting both emergency maintenance needs and large-scale OEM production.
Q: How long does shipping take to Europe/North America?
A: In-stock items typically ship within 3-7 business days via express courier (DHL/FedEx/UPS) to major industrial regions.
Q: How can I verify the authenticity of the bearings?
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.