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
Double Row Cylindrical Roller Bearing NN 3028 K/SPC3W33 for Industrial Machinery OEM Applications
Double Row Cylindrical Roller Bearing NN 3028 K/SPC3W33 for Industrial Machinery OEM Applications
In Stock · Ready to Ship
<p>Ensure seamless industrial machinery performance with the <strong>SKF NN 3028 K/SPC3W33</strong> double row cylindrical roller bearing, engineered to deliver exceptional radial load capacity and precision for critical OEM applications. This 140mm inner diameter Sp-class bearing features an open structure design, optimizing heat dissipation during high-speed operation while maintaining strict alignment with SKF global standards.</p><ul><li>Guaranteed 100% genuine SKF certification with full traceability documentation to streamline your supply chain compliance</li><li>Double row configuration minimizes vibration in heavy-duty machinery, reducing downtime risks and extending equipment lifespan</li><li>Precision Sp tolerance ensures consistent batch performance, eliminating production line disruptions from mismatched components</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
Double Row Cylindrical Roller Bearing NN 3028 K/SPC3W33 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. | NN 3028 K/SPC3W33 |
| Precision Rating | Sp, up, Sp and up |
| Type | Roller |
| Number of Row | Double Row |
| Inner Diameter | 140 mm |
| Selling Units | Single Item |
| Package Size Per | Batch 10X10X10cm |
| Structure | Cylindrical |
| Seals Type | Open |
| Gross Weight Per | 0.250 Kg Batch |
| Trademark | SKF |
| Origin | China |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | CNC Machine Tools, Gearboxes, Electric Motors |
| Manufacturing | Production Line Conveyors, Material Handling Systems |
| Heavy Industry | Rolling Mills, Press Machines |
| Power Generation | Generators, Pumps, Fans |
Prevent Costly Downtime with Genuine SKF NN 3028 K/SPC3W33 Double Row Cylindrical Roller Bearing
Production line managers know the frustration: a bearing failure halts operations, costing thousands in lost output. Counterfeit bearings often fail prematurely due to poor material quality, while multi-tier distributors delay deliveries by weeks, disrupting maintenance schedules. For industrial machinery relying on precision rotation, these issues aren't just inconveniences—they directly impact your bottom line.
Authentic SKF NN 3028 K Bearing, In Stock for Immediate Dispatch
As an official SKF distributor, we eliminate these headaches with the NN 3028 K/SPC3W33 double row cylindrical roller bearing. This 140mm inner diameter bearing features open structure design and Sp precision rating, ideal for high-rigidity applications like machine tool spindles and gearbox shafts. Our centralized warehouse maintains large inventory, ensuring we can fulfill orders of any size—from emergency single units to bulk OEM requirements—without the typical 30–50% lead time delays of traditional distribution channels.
Engineered for High-Precision Industrial Applications
The NN 3028 K/SPC3W33 thrives in demanding environments where radial load capacity and rotational accuracy are critical. Its double row roller design provides superior rigidity compared to single row alternatives, making it suitable for heavy-duty machinery operating under continuous load. The open structure allows for optimal lubrication customization, adapting to specific speed and temperature requirements in industrial settings. Whether your equipment runs at high RPM or handles shock loads, this SKF cylindrical roller bearing delivers consistent performance you can depend on.
Technical Features That Maximize Machine Uptime
Three key specifications define this bearing's performance capabilities. First, the Sp precision rating ensures minimal radial runout, essential for maintaining tight tolerances in CNC machining operations. Second, the double row configuration increases radial load capacity by distributing stress across multiple contact points, extending service life in high-load applications. Third, the open design facilitates easy lubrication maintenance, allowing technicians to optimize grease type and volume based on operating conditions—critical for preventing overheating and premature wear in continuous-duty machinery.
Why Genuine SKF Bearings Lower Total Cost of Ownership
Choosing authentic SKF NN 3028 K/SPC3W33 bearings over gray-market alternatives delivers long-term savings. Counterfeit bearings often lack proper heat treatment, leading to early fatigue failure that can damage expensive machinery components. Our 100% genuine products come with full traceability documentation, ensuring compliance with ISO 9001 standards and avoiding customs clearance delays. While upfront costs may be slightly higher, the reduced maintenance, fewer replacements, and eliminated production downtime result in a significantly lower total cost of ownership over the bearing's lifecycle.
Your Trusted Partner for Industrial Bearing Solutions
With over a decade as an authorized SKF distributor, we've built a reputation for reliability across 60+ countries. Our SKF-certified technical team provides free application analysis, helping you confirm the NN 3028 K/SPC3W33 is the optimal choice for your specific operating conditions. Every bearing undergoes rigorous quality inspection before shipment, and our dedicated account managers track orders from warehouse to delivery. For urgent requirements, we offer door-to-door logistics with real-time tracking, so you know exactly when your critical components will arrive.
Packaging & Shipping
- Original SKF packaging with batch traceability labels and outer carton reinforcement
- 3–7 business day delivery for in-stock items
- Flexible shipping options including DHL, FedEx, UPS, air freight, and sea freight
- Full logistics tracking provided from dispatch to delivery
- Minimum order quantity of 1 unit, supporting both emergency repairs and scheduled maintenance
Secure Your Bearing Supply Today
Don't let bearing issues disrupt your production schedule. The longer you wait to replace worn components, the higher the risk of unexpected downtime. Send us your NN 3028 K/SPC3W33 bearing requirements, including application details and quantity, and our team will prepare a formal quotation with certification documents within 24 hours. With our stock on hand, you can have your machinery back to peak performance in days, not weeks.
Frequently Asked Questions
Q: Are these authentic SKF bearings?
A: Yes, we are an official authorized SKF distributor. Every NN 3028 K/SPC3W33 bearing comes with full traceability documentation and brand authorization certificates to verify authenticity.
Q: How can I confirm this bearing fits my equipment?
A: Provide your machine model or operating parameters (load, speed, temperature), and our SKF-certified technical team will free verify compatibility and provide application recommendations.
Q: What is your warranty policy?
A: All bearings are covered by SKF's standard manufacturer warranty, with unconditional replacement for any manufacturing defects.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, making us ideal for emergency repairs as well as bulk OEM requirements.
Q: How quickly can you ship?
A: In-stock NN 3028 K/SPC3W33 bearings ship within 3–7 business days via your preferred logistics method.
Q: How do I verify bearing authenticity upon delivery?
A: Check the packaging for SKF holographic labels, verify the laser-etched part number matches your order, and use the QR code to access traceability records. We also provide official authorization documents with each shipment.
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