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
NNU4926B/SPW33 SKF Cylindrical Roller Bearing for Industrial Machinery OEM Applications
NNU4926B/SPW33 SKF Cylindrical Roller Bearing for Industrial Machinery OEM Applications
In Stock · Ready to Ship
<p>Ensure uninterrupted industrial machinery performance with the <strong>NNU4926B/SPW33 SKF bearing</strong>, a double row cylindrical roller solution engineered for precision OEM applications. As an official SKF distributor, we guarantee 100% genuine components with full traceability documentation, eliminating compliance hurdles and quality risks in your supply chain.</p><ul><li>130mm inner diameter and open-type design optimize load distribution in high-speed rotating equipment, reducing downtime from premature wear</li><li>Double row structure delivers exceptional radial rigidity, critical for heavy-duty machinery like gearboxes and centrifuges</li><li>Backed by SKF-certified technical support and our centralized warehouse for fast, consistent bulk delivery that aligns with your production schedule</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
NNU4926B/SPW33 SKF Cylindrical Roller Bearing for Industrial Machinery OEM Applications -- 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. | NNU4926B/SPW33 |
| Type | Roller |
| Selling Units | Single Item |
| Single Gross Weight | 0.250kg |
| Number of Row | Double Row |
| Inner Diameter | 130mm |
| Structure | Cylindrical |
| Seals Type | Open |
| Trademark | SKF |
| Origin | China |
| Package Size | 20.00cm * 20.00cm * 20.00cm |
| Package Gross Weight | 0.300kg |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | CNC Machine Tools, Gearboxes, Electric Motors |
| Heavy Manufacturing | Rolling Mills, Conveyor Systems, Press Machinery |
| Power Generation | Generators, Pumps, Compressors |
| Automotive Production | Assembly Line Equipment, Stamping Machines |
Stop Production Delays with Genuine NNU4926B/SPW33 SKF Cylindrical Roller Bearing
OEM manufacturers know the cost of bearing failure—unplanned downtime, production line shutdowns, and quality disputes from counterfeit parts. When your machinery relies on precise motion control, using uncertified bearings with incomplete traceability documentation not only risks equipment damage but also creates customs clearance obstacles that delay shipments to global clients.
Genuine SKF NNU4926B/SPW33 Bearings, In Stock and Traceable
As an official SKF authorized distributor, we provide the NNU4926B/SPW33 SKF cylindrical roller bearing with full traceability, ensuring each unit meets ISO 9001 and SKF global standards. This double row cylindrical bearing, designed for industrial machinery OEM applications, features an open type structure and 130mm inner diameter—ideal for high-load, high-precision equipment like gearboxes and CNC machine spindles. Our centralized warehouse maintains large stock, eliminating the 30–50% lead time delays common in multi-tier distribution channels.
Engineered for Heavy-Duty Industrial Performance
The NNU4926B/SPW33 industrial machinery bearing excels in applications requiring radial load capacity and rigidity. Its double row roller design distributes forces evenly, making it suitable for machinery operating under continuous heavy loads and moderate speeds. Whether installed in metalworking equipment, conveyor systems, or power transmission units, this bearing maintains stability in harsh industrial environments, where vibration and temperature fluctuations demand reliable performance.
Technical Features That Ensure Long-Term Reliability
The NNU4926B/SPW33’s double row cylindrical structure provides superior radial load handling compared to single row alternatives, critical for machinery subject to constant stress. Its open type design allows for easy lubrication maintenance, extending service life in applications where regular maintenance access is essential. With a 130mm inner diameter, this bearing fits standard industrial shafts, ensuring compatibility with common OEM equipment specifications. The precision manufacturing under SKF standards guarantees consistent performance batch after batch, reducing the risk of premature failure due to dimensional inconsistencies.
Why Genuine SKF Bearings Lower Your Total Cost of Ownership
Counterfeit double row roller bearings may offer lower upfront prices, but they often fail within 30–50% of the expected service life, leading to unplanned maintenance, replacement costs, and production downtime. A single hour of line shutdown in automotive or machinery manufacturing can cost thousands of dollars—far exceeding any initial savings from gray-market parts. Our genuine SKF NNU4926B/SPW33 bearings come with complete certification, ensuring compliance with export traceability requirements and minimizing liability risks in global supply chains.
Why Global OEMs Trust Our Bearing Supply
With 60+ countries served and SKF-certified technical teams, we deliver more than products—we provide end-to-end support. Our full-process quality management includes pre-shipment inspection for every NNU4926B/SPW33 bearing, and our dedicated account managers track orders from warehouse to delivery. We offer customized OEM schemes, including small-batch trials and long-term supply agreements with reserved inventory, ensuring your production schedule stays on track. Our global door-to-door logistics network ensures timely delivery, whether you need emergency parts for a breakdown or regular stock replenishment.
Packaging & Shipping
- Original SKF packaging with brand authentication labels and batch traceability documentation
- Secure outer carton reinforcement to prevent damage during transit
- 3–7 business days delivery for in-stock items via DHL, FedEx, or UPS
- Real-time logistics tracking provided for all shipments
- Minimum order quantity: 1 piece, supporting both emergency repairs and bulk OEM procurement
Get Your NNU4926B/SPW33 Bearing Shipped Today
Every day your machinery waits for replacement parts costs production time. Send us your NNU4926B/SPW33 bearing requirements, including quantity and application details, and we’ll issue a formal quotation with certification within 24 hours. Our SKF-certified technical team can also assist with model verification to ensure compatibility with your equipment.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every NNU4926B/SPW33 bearing comes with complete traceability documentation and brand certification.
Q: How can I confirm this bearing fits my equipment?
A: Provide your equipment model or operating parameters (load, speed, temperature), and our SKF-certified technical team will verify compatibility at no cost.
Q: What is your warranty policy?
A: All bearings come with SKF’s standard manufacturer warranty, covering defects in materials and workmanship. We handle direct replacement for valid warranty claims.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, supporting emergency maintenance needs, with bulk pricing available for OEM production runs.
Q: How long does shipping take?
A: In-stock NNU4926B/SPW33 bearings ship within 3–7 business days via DHL, FedEx, or UPS. Custom logistics solutions (air/sea freight) are available for large orders.
Q: How do I verify bearing authenticity?
A: Each bearing includes SKF’s original packaging with holographic labels and batch codes, verifiable through SKF’s official authentication channels. We also provide complete traceability documents with every order.
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