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
NN 3056 K/SPw33 Double Row Cylindrical Roller Bearing for Industrial OEM Machinery
NN 3056 K/SPw33 Double Row Cylindrical Roller Bearing for Industrial OEM Machinery
In Stock Β· Ready to Ship
<p>Ensure consistent performance in heavy-duty industrial machinery with the <strong>SKF NN 3056 K/SPw33 double row cylindrical roller bearing</strong>, designed to minimize downtime and streamline production workflows. This precision SP grade bearing delivers exceptional radial load capacity (280mm inner diameter) and rotational accuracy, critical for high-speed OEM applications where batch consistency directly impacts assembly line efficiency.</p><ul><li>Engineered with SKF's proprietary SP precision tolerance to reduce vibration and extend machinery service life</li><li>Double row cylindrical structure ensures stable operation under variable loads, eliminating common alignment issues in large-scale equipment</li><li>Open seal design allows for customized lubrication solutions, adapting to specific working conditions without compromising performance</li></ul>
Bore (d)
--
Outer Dia. (D)
--
Width (B)
--
Dynamic C
--
Static Cβ
--
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 Β· Sample orders available
24h Response
Quotation & Cert
60+ Countries
DDP/DAP/CIF
ISO 9001
Quality Certified
Full Specifications
Complete Technical Parameters
NN 3056 K/SPw33 Double Row Cylindrical Roller Bearing for Industrial OEM Machinery -- Parameter Sheet
SKF Β· 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 (Cβ) | -- | 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 | β30 to +120 Β°C | -- |
| Vibration Level | SKF E1 / Standard | -- |
| Misalignment Tolerance | -- | Β° |
| 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 Β· Spherical Β· Cylindrical Β· Tapered Β· Thrust Β· Angular Contact
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Sealing: Radial shaft seals Β· V-rings Β· Labyrinth seals Β· Bearing isolators
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Lubrication: LGMT 2/3 grease Β· Automatic lubricators Β· Centralized systems
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Mounting Tools: Induction heaters Β· Fitting kits Β· TMFT 36 Β· Alignment tools
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Housings: Plummer blocks Β· Flanged housings Β· Split housings Β· Adaptor sleeves
Need Application Advice?
SKF-Certified Engineer
Selection Β· Failure analysis Β· 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. | NN 3056 K/SPw33 |
| Precision Rating | SP, up, SP and up |
| Type | Cylindrical Roller |
| Number of Row | Double Row |
| Inner Diameter | 280 mm |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
| Selling Units | Single Item |
| Package Size Per | 10X10X10cm Batch |
| Gross Weight Per | 0.100 kg Batch |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | CNC Machine Tools, Gearboxes, Electric Motors |
| Heavy Manufacturing | Rolling Mills, Press Machines, Conveying Systems |
| Power Generation | Generators, Compressors, Pump Systems |
| Automotive Production | Assembly Line Equipment, Stamping Machines |
Stop Production Delays with Genuine SKF NN 3056 K/SPw33 Double Row Cylindrical Roller Bearing
OEM manufacturers know the cost of bearing failureβunplanned downtime, production line halts, and quality disputes from counterfeit parts. When your industrial machinery relies on precision components, inconsistent delivery times and uncertified products put your entire operation at risk. The NN 3056 K/SPw33 bearing isnβt just a part; itβs a critical link in maintaining your production schedule.
Genuine SKF Quality, Available for Immediate Shipment
As an official SKF distributor, we ensure every NN 3056 K/SPw33 bearing comes with full traceability documentation, eliminating customs clearance issues and quality doubts. Our large centralized warehouse stocks this SP grade cylindrical roller bearing, meaning you avoid the 30β50% lead time delays common with multi-tier distributors. Whether for new machinery assembly or emergency maintenance, we deliver the right part when you need it.
Engineered for High-Precision Industrial Applications
The NN 3056 K/SPw33 thrives in demanding industrial environments where radial load capacity and rotational accuracy are non-negotiable. With its double row design and 280mm inner diameter, this bearing excels in heavy-duty equipment like large gearboxes and CNC machine spindles, providing stable performance under continuous operation. Its open structure allows for optimal lubrication control, making it ideal for applications requiring frequent maintenance access.
Technical Features That Maximize Machinery Performance
The SP precision rating of the NN 3056 K/SPw33 ensures minimal radial runout and high rotational accuracy, critical for reducing vibration in high-speed machinery. Its double row cylindrical roller configuration distributes load evenly across the raceway, extending service life in applications with heavy radial loads. The bearingβs design accommodates thermal expansion, making it suitable for machinery operating in varying temperature conditions. When paired with proper installation and lubrication, these features translate to consistent performance and reduced unplanned downtime.
Avoid Hidden Costs: Why Authenticity Matters
Counterfeit bearings may seem like a cost-saving option, but they often fail prematurelyβcosting far more in repairs, replacement, and production losses than genuine parts. SKFβs rigorous manufacturing standards, combined with our ISO 9001 compliant quality management, ensure each NN 3056 K/SPw33 bearing meets global performance benchmarks. Choosing authorized distribution means avoiding the risks of incomplete traceability, substandard materials, and poor craftsmanship that plague gray-market suppliers.
Why Industrial OEMs Choose Our Bearing Solutions
Our 100% genuine SKF products come with official certification, traceable from production to delivery. With a SKF-certified technical team, we provide expert guidance on model selection, installation, and failure analysisβsupporting your operations beyond just product delivery. We serve over 60 countries worldwide, offering global door-to-door logistics and customized OEM supply schemes. Our standardized process ensures a formal quotation within 24 hours of your inquiry, with dedicated account managers tracking every order from warehouse to your facility.
Packaging & Shipping
- Original SKF packaging with batch traceability labels and outer carton reinforcement
- 3β7 business days delivery for in-stock orders
- Flexible shipping via DHL, FedEx, UPS, air freight, or sea freight
- Real-time tracking number provided upon dispatch
- Minimum order quantity of 1 piece, supporting both emergency repairs and bulk procurement
Secure Your Bearing Supply Today
Donβt let bearing issues disrupt your production. Send us your NN 3056 K/SPw33 order details, including quantity and application requirements, and our team will confirm availability and provide a quote within 24 hours. With our stock ready to ship, you can minimize downtime and keep your machinery running at peak efficiency.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every NN 3056 K/SPw33 bearing comes with full traceability documentation and brand authorization certificates.
Q: How do I confirm this bearing fits my equipment?
A: Provide your equipment model, operating conditions (load, speed, temperature), and weβll have our SKF-certified technical team verify compatibility at no cost.
Q: What is the warranty policy?
A: All bearings are covered by SKFβs standard manufacturer warranty, with unconditional replacement for manufacturing defects.
Q: What is the minimum order quantity?
A: We accept orders of 1 piece, making us ideal for emergency repairs or small-batch trials before mass production.
Q: How quickly can you ship?
A: In-stock NN 3056 K/SPw33 bearings ship within 3β7 business days via your preferred logistics method.
Q: How can I verify the bearingβs authenticity?
A: Each bearing includes SKFβs original packaging with holographic labels and batch codes, verifiable through SKFβs official channels. We also provide full traceability documents with every order.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity β 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 Β· DAP Β· CIF Β· FOB |
| North America | Sea / Air / Express | 20-30d / 5-8d / 3-5d | DDP Β· DAP Β· CIF Β· FOB |
| Southeast Asia | Sea / Air / Express | 7-15d / 3-5d / 2-4d | DDP Β· DAP Β· CIF Β· FOB |
| Middle East | Sea / Air / Express | 15-25d / 4-7d / 3-5d | DDP Β· DAP Β· CIF Β· FOB |
| Other Regions | Sea / Air / Express | Upon Confirmation | FOB Β· CIF Β· 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 β
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