Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
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100% Genuine SKF
Full Traceability
ISO 9001 Certified
SKF Authorized
Cylindrical Roller Bearing
Multi-Row NN3024 Ktn9/Upvr522 Cylindrical Roller Bearing for Rolling Mills with SKF Certification
Multi-Row NN3024 Ktn9/Upvr522 Cylindrical Roller Bearing for Rolling Mills with SKF Certification
In Stock · Ready to Ship
<p>Ensure your rolling mill operates at peak efficiency with the <strong>SKF NN3024 bearing</strong>, a double row cylindrical roller solution engineered to deliver unmatched stability under heavy radial loads. This SKF-certified component (model NN3024KTN9/UPVR522) features a precision-machined cylindrical structure that minimizes vibration, reducing downtime and extending equipment lifespan.</p><ul><li>120mm inner diameter and open seal design optimize heat dissipation—critical for continuous rolling operations</li><li>Double row configuration provides superior load distribution compared to single row alternatives, ideal for high-torque applications</li><li>Backed by full traceability documentation and SKF’s global quality standards, ensuring seamless integration into your production line</li></ul>
Bore (d)
--
Outer Dia. (D)
--
Width (B)
--
Dynamic C
--
Static Câ‚€
--
Speed Limit
--
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
Full Specifications
Complete Technical Parameters
Multi-Row NN3024 Ktn9/Upvr522 Cylindrical Roller Bearing for Rolling Mills with SKF Certification -- Parameter Sheet
SKF · Cylindrical Roller Bearing
| 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. | -- | -- |
* All specifications are reference values. Contact our SKF engineers for application-specific confirmation.
Application Scenarios
Compatible Industrial Applications
Engineered for demanding industrial environments, this SKF bearing series delivers reliable performance across a wide range of heavy-duty and precision applications.
Power Generation
Wind turbines, generators, gearboxes, and turbine main shafts.
Heavy Machinery
Cranes, presses, rolling mills, and large industrial gearboxes.
Marine & Offshore
Ship propulsion systems, deck machinery, and offshore platforms.
Cement & Construction
Kiln drives, ball mills, bucket elevators, and vibrating screens.
Pulp & Paper
Paper machine rolls, dryer sections, and calender rolls.
Full Portfolio
One-Stop SKF Supporting Solutions
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Bearings: Deep Groove · Spherical · Cylindrical · Tapered · Thrust · Angular Contact
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Sealing: Radial shaft seals · V-rings · Labyrinth seals · Bearing isolators
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Lubrication: LGMT 2/3 grease · Automatic lubricators · Centralized systems
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Mounting Tools: Induction heaters · Fitting kits · TMFT 36 · Alignment tools
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Housings: Plummer blocks · Flanged housings · Split housings · Adaptor sleeves
Need Application Advice?
SKF-Certified Engineer
Selection · Failure analysis · Technical support
Technical Expertise
SKF Global Standards & Supporting Solutions
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.
Internal Design
SKF E1 Geometry
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.
ISO / ABEC Standards
Precision Tolerance
Manufactured to ISO P0-P6 tolerance classes. Dimensional accuracy and running accuracy are 100% verified before shipment, with full batch traceability records.
SKF Sealing Systems
Sealing Solutions
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.
SKF Lubrication Systems
Lubrication Planning
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.
SKF Maintenance Tools
Mounting & Alignment
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.
Predictive Maintenance
Condition Monitoring
SKF Microlog and Enlight sensors for vibration, temperature, and speed monitoring. Enable predictive maintenance strategies to minimize unplanned downtime and optimize bearing replacement intervals.
Product Details
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | NN3024KTN9/UPVR522 |
| Type | Roller |
| Inner Diameter (d) | 120 mm |
| Number of Row | Double Row |
| Structure | Cylindrical |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
| Single Gross Weight | 0.250 Kg |
| Single Package Size | 10X10X10cm |
| Selling Units | Single Item |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Steel & Metallurgy | Rolling Mills, Strip Mills, Hot Rolling Equipment |
| Heavy Machinery | Large Gearboxes, Press Machines, Forging Equipment |
| Industrial Manufacturing | Continuous Casting Machines, Metal Processing Lines |
Prevent Rolling Mill Downtime with Certified SKF NN3024 Ktn9/Upvr522 Bearings
Rolling mill operators know the cost of unexpected downtime—hours of lost production, emergency maintenance crews, and missed delivery deadlines. Counterfeit bearings often fail prematurely under heavy loads, while multi-tier distributors delay critical replacements by 30–50%. When your mill’s productivity depends on reliable equipment, every minute of uncertainty matters.
SKF NN3024 Bearings: In-Stock Solutions for Critical Applications
As an official SKF distributor, we stock the NN3024 Ktn9/Upvr522 cylindrical roller bearing—engineered specifically for rolling mills. This double row bearing delivers the batch consistency and traceability that gray-market suppliers can’t match. Our centralized warehouse ensures immediate availability, with door-to-door delivery to keep your production line running without unnecessary delays.
Engineered for Rolling Mill Performance
The NN3024 Ktn9/Upvr522 thrives in the harsh conditions of rolling mills, where high radial loads, moderate speeds, and continuous operation are the norm. Its double row cylindrical design provides superior load distribution, making it ideal for supporting heavy work rolls and reducing vibration during metal forming processes. Choosing the right bearing here isn’t just about replacement—it’s about protecting your mill’s operational efficiency.
Technical Features That Drive Reliability
Three key attributes define this bearing’s performance: its double row configuration maximizes radial load capacity, ensuring stability under the extreme pressures of rolling operations. The open seal design allows for optimal lubrication flow, critical for heat dissipation in high-duty cycles. With a 120 mm inner diameter, it fits standard rolling mill shafts, ensuring compatibility with most equipment configurations. Every component adheres to SKF’s global quality standards, validated through our ISO 9001-certified management process.
Why Authenticity Matters for Your Bottom Line
Non-genuine bearings may cost less upfront, but they often lead to hidden expenses: early failure can damage adjacent components, requiring full assembly replacements. In rolling mills, a single bearing failure can halt production for days, resulting in losses that far exceed the initial savings. Our SKF-certified roller bearings come with complete traceability documentation, eliminating customs clearance issues and ensuring you receive the exact performance specifications your mill requires.
Your Trusted Partner for Industrial Bearings
We’ve served over 60 countries as a dedicated SKF OEM supplier, building our reputation on four pillars: official authorization guarantees full supply chain traceability, with every bearing accompanied by SKF’s certification documents. Our SKF-trained technical team provides free model selection support, ensuring you get the right bearing for your specific rolling mill conditions. A centralized warehouse with large stock volumes enables emergency delivery, while our 24-hour quotation response ensures you never wait for critical information. We don’t just sell bearings—we deliver peace of mind for your production line.
Packaging & Shipping
- Original SKF packaging with product certification and traceability documents
- Single item packaging: 10x10x10cm box with protective padding
- Global door-to-door logistics via DHL, FedEx, UPS, or consolidated air/sea freight
- Real-time tracking provided for all shipments
- Minimum order quantity: 1 piece, ideal for emergency repairs or scheduled maintenance
Get Your Rolling Mill Back on Track
Don’t let bearing issues disrupt your production schedule. Send us your NN3024 Ktn9/Upvr522 quantity requirements and rolling mill specifications today, and we’ll provide a formal quotation within 24 hours. With our stock availability, you can minimize downtime and keep your operations running at peak efficiency.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every NN3024 Ktn9/Upvr522 bearing comes with full traceability documentation and SKF certification to verify authenticity.
Q: How do I confirm this bearing fits my rolling mill?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will verify compatibility at no cost.
Q: What is the warranty policy?
A: All bearings come with SKF’s standard manufacturer warranty, covering manufacturing defects with unconditional replacement if issues arise.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 piece, supporting both emergency repairs and bulk procurement needs.
Q: How long does shipping take?
A: In-stock bearings ship within 3-7 working days via your preferred logistics (DHL/FedEx/UPS/air/sea freight), with tracking provided upon dispatch.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Check the packaging for SKF’s holographicé˜²ä¼ªæ ‡ç¾, verify the laser-etched model number, and use the traceability certificate to confirm via SKF’s official channels.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
Authenticity & Warranty
Genuine SKF Traceability & Quality Commitment
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.
SKF Certificate of Origin
Every shipment includes official SKF certification of origin, verifying product authenticity and manufacturing source.
Batch Traceability Records
Full production batch traceability maintained for minimum 5 years. Enables quality audit and failure investigation.
SKF Authorized Distributor Status
Verified annually by SKF. Our authorized status can be confirmed directly through the SKF distributor verification system.
Quality Warranty
All products carry SKF manufacturer warranty. Defective products are replaced or refunded -- no questions asked.
Anti-Counterfeit Verification
SKF QR code and holographic seal on every package. Verify authenticity instantly via SKF's official verification portal.
Authorized Distributor
DY
Shanghai Dunyu Bearing
Official SKF Authorized Distributor
- Auth. Since
- 2010+
- Quality Std.
- ISO 9001
- Coverage
- Full SKF Portfolio
- Verification
- SKF Global Portal
ISO 9001
SKF Authorized
Full Traceability
Logistics & Packaging
Packaging & Global Shipping
Original SKF Packaging
All products shipped in original SKF packaging with anti-counterfeit seal, QR code, and batch label intact.
Export Carton + Wooden Crate
Standard export carton for small orders. Custom wooden crates with moisture-proof lining for large/heavy shipments.
Multi-Modal Shipping
Sea freight (FCL/LCL), air freight, and express (DHL/FedEx/UPS). DDP, DAP, CIF, FOB terms all supported.
Delivery Timeline
In-stock items: 1-3 days dispatch. Air freight: 3-7 days door-to-door. Sea freight: 15-35 days by destination.
Shipping Terms & Regions
| 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 |
Related Products
Related Models & Supporting Components
FAQ
Frequently Asked Questions
How do I verify the product is 100% genuine SKF?
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.
What is the minimum order quantity (MOQ)?
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.
How long does it take to receive a formal quotation?
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.
Do you support DDP (Delivered Duty Paid) shipping?
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.
Can you provide technical support for bearing selection?
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.
What are the payment terms?
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.
What happens if I receive a defective product?
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 →
Start Your Procurement
Get a Formal Quote
Within 24 Hours.
Send us your bearing model, quantity, and delivery requirements. Our SKF-certified team will respond with a formal quotation, traceability certificate, and logistics plan.
- 100% Genuine SKF with Certificate of Origin
- Formal quotation within 24 hours
- Sample orders & bulk supply supported
- DDP/DAP/CIF to 60+ countries
- Dedicated SKF-certified account manager
Send Inquiry -- SKF Bearing Specialist Online