Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Ensure smooth intermittent industrial operations with the reliable <strong>Double Row Cylindrical Roller Bearing NU2309-Ec P-C3</strong>, designed to minimize downtime and maintain consistent performance in variable duty cycles. As an official SKF distributor, we guarantee 100% genuine bearings with full traceability documentation, eliminating customs clearance delays and quality disputes.</p><ul><li>Engineered with C3 clearance and brass/steel cage options to accommodate thermal expansion during start-stop cycles, a critical feature for intermittent machinery</li><li>Delivers robust radial load handling (up to [specific value, if available]) with precise alignment, reducing premature wear in industrial equipment</li><li>Backed by our SKF-certified technical team for personalized model selection and installation guidance, ensuring optimal fit for your production line</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 |
|---|---|
| Industrial Machinery | Conveyors, Gearboxes, Pumps |
| Manufacturing | Production Line Integrators, Factory Upgrading Equipment |
| Automotive | Assembly Line Machinery, Material Handling Systems |
| General Machinery | Compressors, Fans, Machine Tools |
Industrial operations relying on intermittent machinery face unique challenges: bearings must handle variable loads and start-stop cycles without premature failure. When equipment stalls due to bearing issues, production lines halt, maintenance costs rise, and deadlines slip. Many OEMs struggle with sourcing bearings that balance durability for intermittent use with reliable supply chains—compromising on either leads to increased operational risks.
The Double Row Cylindrical Roller Bearing NU2309 EC P-C3 is specifically designed to address the demands of intermittent machinery. As an official SKF distributor, Dunyu Bearings ensures each bearing meets SKF global standards, with full traceability to eliminate counterfeit risks. Our large centralized warehouse stocks this industrial bearing, enabling fast emergency delivery to keep your production on schedule. Whether used in conveyor systems, gearboxes, or pumps, this bearing delivers consistent performance in start-stop operational environments.
Intermittent industrial operations require bearings that can withstand fluctuating axial loads and moderate speeds. The NU2309 EC P-C3 features a separated design, allowing for easy mounting and dismounting during maintenance—critical for minimizing downtime. With a hardness rating of 60-64 HRC, the bearing steel construction ensures resistance to wear, even under the stress of repeated start-stop cycles. This makes it ideal for industrial machinery where operational demands vary throughout the production day.
The NU2309 EC P-C3 incorporates key technical attributes that enhance its suitability for industrial applications. The C3 clearance grade provides thermal expansion allowance, preventing seizure during temperature fluctuations common in intermittent operations. Available with brass or steel cages, the bearing maintains stable roller guidance, reducing vibration (Z1V1 to Z3V3 classes) and noise. Its double row design increases radial load capacity, while the non-aligning configuration ensures precision in machinery with strict alignment requirements. These features collectively extend bearing life and reduce the need for frequent replacements.
Counterfeit bearings may offer lower upfront costs, but they often fail prematurely in intermittent operations—costing far more in downtime and repairs. Genuine SKF Cylindrical Bearings like the NU2309 EC P-C3 undergo rigorous testing to ISO 9001 standards, ensuring batch consistency and performance reliability. In contrast, gray-market products lack traceability, increasing the risk of customs delays and quality disputes. By choosing authorized distributors, OEMs avoid hidden costs associated with counterfeit bearings, including production line shutdowns and liability issues from equipment failure.
Dunyu Bearings operates as an official SKF distributor with a proven track record serving 60+ countries. Our ISO 9001 compliant quality management system includes full-process checks, from incoming inspection to出库 verification. Our SKF-certified technical team provides customized OEM support, including model selection based on working conditions and failure analysis. With global door-to-door logistics and dedicated account managers, we ensure transparency at every stage—from order placement to after-sales service. Our centralized warehouse maintains large inventories, enabling 3-7 day delivery for most regions.
Every hour of downtime in intermittent operations impacts productivity. With the NU2309 EC P-C3 Double Row Cylindrical Roller Bearing in stock and ready to ship, you can minimize delays and maintain operational continuity. Send us your order details, including quantity and application requirements, and our team will provide a formal quotation within 24 hours—complete with brand authorization and traceability documentation.
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF distributor. Every bearing comes with full traceability documentation and brand authorization to verify authenticity.
Q: How do I confirm if the NU2309 EC P-C3 is suitable for my equipment?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will conduct a free compatibility check.
Q: What is the warranty policy?
A: All bearings come with SKF's standard manufacturer warranty, covering manufacturing defects with unconditional replacement.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, supporting both emergency repair needs and large-scale OEM production.
Q: How long does shipping take?
A:现货 items ship within 3-7 working days. Logistics options include express (DHL/FedEx/UPS), air, or sea freight based on your timeline and budget.
Q: How can I verify the bearing's authenticity upon receipt?
A: Check the SKF packaging for防伪 labels, laser-etched model markings, and scan the QR code for官网 verification. We also provide full traceability certificates with each order.
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.