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 Bearings
Thin Section Crossed Cylindrical Roller Bearing NN3011KTN/SPVR522 for Industrial Machinery
Thin Section Crossed Cylindrical Roller Bearing NN3011KTN/SPVR522 for Industrial Machinery
In Stock · Ready to Ship
<p>Ensure precise industrial machinery performance with the <strong>NN3011KTN/SPVR522</strong> thin section crossed cylindrical roller bearing, a double row SKF solution engineered for seamless integration in compact equipment setups. Its 55mm inner diameter and open structure deliver exceptional radial load capacity while maintaining minimal space requirements, critical for high-precision applications where every millimeter counts.</p><ul><li>Double row cylindrical design ensures stable operation under heavy loads, reducing downtime risks in production environments</li><li>SKF-certified traceability guarantees compliance with global quality standards, eliminating documentation hurdles for international shipments</li><li>0.250kg lightweight construction enhances installation efficiency without compromising durability</li></ul>
Bore (d)
--
Outer Dia. (D)
--
Width (B)
--
Dynamic C
--
Static C₀
--
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
Thin Section Crossed Cylindrical Roller Bearing NN3011KTN/SPVR522 for Industrial Machinery -- Parameter Sheet
SKF · Cylindrical Roller Bearings
| 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. | -- | -- |
* 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. | NN3011KTN/SPVR522 |
| Type | Roller |
| Number of Row | Double Row |
| Inner Diameter | 55 mm |
| Single Gross Weight | 0.250 kg |
| Single Package Size | 10×10×10 cm |
| Structure | Cylindrical |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Manufacturing | CNC machine tools, precision spindles, gearboxes |
| Industrial Machinery | Robotic arms, rotary tables, indexing units |
| Automotive | Assembly line conveyors, precision positioning systems |
| General Machinery | Printing presses, textile machinery, packaging equipment |
Stop Production Delays with Genuine NN3011KTN/SPVR522 Crossed Cylindrical Roller Bearing
Industrial machinery OEMs and maintenance teams often face unexpected downtime when bearings fail prematurely. Counterfeit products from gray-market channels not only lack proper traceability documentation—causing customs clearance issues—but also risk early fatigue under load. Multi-tier distribution further complicates scheduling with extended lead times, leaving production lines idle and impacting bottom lines.
NN3011KTN/SPVR522: Authentic SKF Performance for Critical Applications
As an official SKF authorized distributor, Dunyu Bearings delivers the NN3011KTN/SPVR522 thin section crossed cylindrical roller bearing with full traceability and compliance with ISO 9001 standards. This double row cylindrical bearing, designed for industrial machinery, features an open type structure and 55mm inner diameter, making it ideal for precision rotary applications where space and weight are critical factors. Our centralized warehouse ensures stock availability, eliminating the delays of traditional distribution channels.
Engineered for Precision in Demanding Conditions
The NN3011KTN/SPVR522 SKF roller bearing excels in applications requiring high radial and axial load capacity within a compact design. Its crossed cylindrical roller arrangement enables simultaneous accommodation of loads from multiple directions, while the thin section construction minimizes space requirements—key for modern machinery with tight dimensional constraints. Whether operating in high-speed indexing tables or precision robotic joints, this bearing maintains stability and accuracy under continuous cyclic loads.
Technical Features That Drive Reliability
The double row cylindrical structure of the NN3011KTN/SPVR522 enhances load distribution, extending service life compared to single row alternatives. At 0.250kg, its lightweight design reduces inertia in dynamic applications, improving energy efficiency. The open seal type allows for direct lubrication access, critical for maintenance in harsh industrial environments where contamination control is essential. As an SKF roller bearing, it adheres to global standards for material quality and manufacturing precision, ensuring consistent performance across batch orders.
Why Authenticity Matters for Total Cost of Ownership
Choosing genuine SKF bearings like the NN3011KTN/SPVR522 eliminates the hidden costs of counterfeit products. Unauthorized copies often fail prematurely, leading to unplanned maintenance, production downtime, and potential damage to associated machinery. In contrast, our bearings come with complete traceability documentation, ensuring compliance with export requirements and quality liability protection. The initial investment in authentic components reduces long-term expenses by minimizing replacement frequency and operational disruptions.
Why Buyers Trust Dunyu Bearings for SKF Products
With over a decade as an official SKF distributor, we serve 60+ countries worldwide, including core markets in Europe, North America, and Southeast Asia. Our SKF-certified technical team provides free model selection support based on operating conditions, while our 24-hour quotation response ensures efficient procurement planning. Every bearing undergoes pre-shipment inspection, and we offer dedicated account managers to track orders from warehouse to delivery. Our global door-to-door logistics network ensures timely arrival, even for紧急维修需求.
Packaging & Shipping
- Original SKF packaging with brand authentication labels and serial number tracking
- Secure outer carton reinforcement for international transit protection
- 3-7 business days delivery for in-stock items via DHL, FedEx, or UPS
- Real-time logistics tracking provided upon shipment confirmation
- Minimum order quantity of 1 unit, supporting both emergency repairs and bulk OEM orders
Get Your NN3011KTN/SPVR522 Bearing Shipped Today
Don’t let bearing procurement delays disrupt your production schedule. Send us your NN3011KTN/SPVR522 order quantity and application details—our team will confirm stock availability and issue a formal quotation within 24 hours. With our direct SKF supply chain, you avoid the 30-50% lead time extension of multi-tier distributors, getting your machinery back online faster.
Frequently Asked Questions
Q: Is the NN3011KTN/SPVR522 an original SKF product?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with full traceability documentation and brand certification to verify authenticity.
Q: How can I confirm this bearing fits my equipment?
A: Provide your machinery model or operating parameters (load, speed, temperature), and our SKF-certified technical team will validate compatibility at no cost.
Q: What is the warranty policy for this bearing?
A: We adhere to SKF’s global warranty standards, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, ideal for emergency repairs, with volume discounts available for bulk OEM requirements.
Q: How long does shipping take to Europe/North America?
A: In-stock bearings ship within 3-7 business days via express courier, with door-to-door delivery tracking provided.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Check the packaging for SKF’s holographic label, verify the serial number via SKF’s official website, and request our traceability certificate for full supply chain transparency.
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