Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Minimize mining machinery downtime with the <strong>Shock Resistant Double Row Cylindrical Roller Bearing NN3019 TN9/SP</strong>—engineered to deliver unyielding performance under heavy冲击 loads and variable operating conditions. As an official SKF distributor, we ensure full traceability and batch consistency, eliminating the risks of counterfeit parts and documentation gaps that can delay your operations.</p><ul><li>60-64 HRC hardness rating ensures extended service life even in abrasive mining environments</li><li>Separated design allows for easy installation and maintenance, reducing equipment downtime</li><li>Available clearance options (C0-C5) and brass/steel cage variants for precise application matching</li><li>Backed by our SKF-certified technical team for personalized model selection and after-sales support</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 |
|---|---|
| Mining & Construction | Crushers, Conveyors, Mining Drills, Load Haul Dump Machines |
| Heavy Machinery | Excavators, Bulldozers, Industrial Gearboxes |
Mining operations face critical challenges when equipment bearings fail prematurely—unplanned shutdowns cost an average of $22,000 per hour in lost production, and counterfeit bearings account for 40% of such failures in heavy machinery. Sourcing reliable bearings that withstand extreme shock loads and maintain precision under variable conditions remains a persistent struggle for maintenance managers and OEM procurement teams.
Our NN3019 TN9/SP Double Row Cylindrical Roller Bearing addresses these challenges with design features optimized for mining machinery. As an official SKF distributor, we ensure full traceability from manufacturing to delivery, eliminating the risks of gray-market counterfeits. The bearing's separated inner and outer rings allow for easy installation and replacement—critical during emergency maintenance—while its brass cage design ensures stable operation under heavy radial loads common in crushers and conveyor systems.
This Mining Machinery Bearing excels in high-shock environments where equipment operates under continuous heavy loads and variable speeds. Specifically engineered for mining crushers, conveyor drives, and drilling rigs, it handles axial loads up to 60 kN and radial loads exceeding 150 kN, maintaining performance in temperatures ranging from -30°C to 120°C. In applications with frequent start-stop cycles and debris exposure, the bearing's non-aligning design reduces premature wear caused by shaft misalignment.
The NN3019 TN9/SP Bearing's performance is rooted in precision engineering. Its 60-64 HRC hardness rating ensures resistance to surface fatigue, a leading cause of bearing failure in mining equipment. Clearance options (C0-C5) allow customization for specific operating conditions—C3 clearance is recommended for high-temperature applications to accommodate thermal expansion, while C4 is ideal for heavy shock loads. The Z3V3 vibration class minimizes noise and energy loss, extending gearbox and motor lifespan by reducing harmonic stress. Cage material options (brass for high load capacity, steel for cost efficiency) provide flexibility based on equipment requirements.
Choosing non-genuine Shock Resistant Bearings creates hidden costs that far exceed initial savings. A counterfeit bearing may fail in as little as 2,000 hours—compared to 20,000+ hours for a genuine unit—resulting in unplanned downtime, replacement labor, and potential damage to adjacent components like gears and shafts. Our ISO 9001-compliant quality management ensures each bearing meets SKF global standards, with batch consistency that reduces vibration-related wear on connected machinery. Over a 5-year service life, genuine bearings lower total cost of ownership by up to 35% through reduced maintenance and longer intervals between replacements.
As an authorized SKF distributor serving 60+ countries, we deliver four critical advantages: full traceability with batch-specific certification documents to streamline customs clearance; a centralized warehouse with 10,000+ SKU inventory for emergency delivery; SKF-certified technical engineers available for on-site installation guidance and failure analysis; and global door-to-door logistics with average transit times of 5-7 days to major mining regions. Our 15-year track record in industrial bearing supply includes long-term partnerships with 200+ mining equipment OEMs and maintenance service providers.
Every hour of downtime in mining operations erodes profitability. Our NN3019 TN9/SP Double Row Cylindrical Roller Bearing is in stock and ready to ship—send your equipment model, operating hours, and required quantity today, and our technical team will confirm compatibility within 4 business hours. Don’t let bearing failure disrupt your production schedule.
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with a certificate of authenticity and full traceability documentation linking to SKF's manufacturing records.
Q: How do I confirm this bearing fits my mining equipment?
A: Provide your equipment make/model or existing bearing designation, and our SKF-certified technical team will verify compatibility and recommend optimal clearance and cage options based on your operating conditions.
Q: What is the warranty period?
A: All bearings are covered by SKF's standard manufacturer warranty, which includes replacement for any defects in materials or workmanship. Extended warranty options are available for bulk orders under a long-term supply agreement.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece to support emergency repairs, with volume discounts available for quantities of 10+ units.
Q: How quickly can you deliver to remote mining sites?
A: For in-stock items, express delivery takes 3-5 business days to most global locations. We also offer specialized logistics solutions for hard-to-reach mining regions, including air freight to nearest airports with ground transport coordination.
Q: How can I verify the bearing's authenticity upon receipt?
A: Each bearing includes SKF's holographic label with a unique verification code that can be checked via SKF's official website. We also provide a detailed batch test report with every 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.