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
Double Row Cylindrical Roller Bearing NN3038 K/SP W33 for Engineering Equipment with C3 Clearance
Double Row Cylindrical Roller Bearing NN3038 K/SP W33 for Engineering Equipment with C3 Clearance
In Stock · Ready to Ship
<p>Maximize engineering equipment uptime with the <strong>Double Row Cylindrical Roller Bearing NN3038 K/SP W33</strong>—engineered to deliver exceptional radial load capacity and precise shaft alignment in heavy-duty applications. Its C3 clearance ensures optimal thermal expansion accommodation, while the brass cage design minimizes friction for extended service life under high-speed operation.</p><ul><li>Separated inner/outer rings enable easy mounting and dismounting, streamlining maintenance workflows</li><li>Non-aligning construction maintains performance integrity even in systems with minimal shaft deflection</li><li>100% genuine SKF-certified quality with full traceability documentation, eliminating compliance hurdles in global supply chains</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
Double Row Cylindrical Roller Bearing NN3038 K/SP W33 for Engineering Equipment with C3 Clearance -- 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 Designation | NN3038 K/SP W33 |
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension Range | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Alignment Capability | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separable Design | Separated |
| Clearance | C3 |
| Cage Material | Brass |
| Vibration Class | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| HS Code | 8482800000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Construction | Excavators, Loaders, Bulldozers |
| Mining | Crushers, Conveyors, Mining Drills |
| Heavy Machinery | Industrial Gearboxes, Rotary Kilns |
| Power Generation | Steam Turbines, Generators |
| Steel Manufacturing | Rolling Mills, Continuous Casters |
Stop Equipment Downtime with Genuine NN3038 K/SP W33 Double Row Cylindrical Roller Bearing
Engineering equipment operators know the cost of unexpected bearing failure—production halts, emergency repair expenses, and missed deadlines. Counterfeit bearings often fail within months, while multi-tier distribution channels delay critical replacements by 30-50%. When your excavator or crusher needs a reliable Double Row Cylindrical Roller Bearing, every day of waiting eats into profits.
Genuine SKF NN3038 K/SP W33 Bearings, In Stock and Ready to Ship
As an official SKF authorized distributor, we eliminate these headaches with genuine NN3038 K/SP W33 bearings featuring C3 clearance and brass cages. Our large centralized warehouse maintains stock for immediate delivery, ensuring your engineering equipment minimizes downtime. Each bearing undergoes full-process quality management compliant with ISO 9001 and SKF global standards, guaranteeing performance in heavy-load applications like construction machinery gearboxes and mining equipment shafts.
Engineered for Heavy-Duty Engineering Equipment Performance
The NN3038 K/SP W33 excels in the most demanding engineering environments—withstanding high radial loads, shock impacts, and continuous operation in dusty or vibrating conditions. Its separated design allows for easy mounting and dismounting during maintenance, while the non-aligning cylindrical roller configuration ensures precise performance in rigidly mounted shafts. Whether powering a conveyor in a mining operation or supporting a crane boom, this bearing delivers consistent reliability under extreme stress.
Technical Features That Maximize Equipment Uptime
The C3 clearance specification provides optimal internal space for thermal expansion during prolonged operation, reducing friction and extending bearing life in high-temperature applications common in steel mills and power generation. The brass cage offers superior strength and heat resistance compared to steel alternatives, maintaining structural integrity at speeds up to the bearing's rated limits. With a hardness of 60-64 HRC, the bearing steel raceways and rollers resist wear even under heavy loads, while the Z-series vibration classes ensure smooth operation with minimal noise—a critical factor in operator comfort and equipment longevity.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Choosing genuine SKF bearings over gray-market alternatives delivers measurable long-term savings. Counterfeit bearings typically fail 3-5 times faster, leading to repeated replacement cycles and unplanned downtime that costs manufacturers $5,000-$20,000 per hour in lost production. Our SKF-certified Double Row Cylindrical Roller Bearings come with complete traceability documentation, eliminating customs clearance delays and quality liability disputes. While initial costs may be higher, the extended service life and reduced maintenance requirements result in 30-40% lower total cost of ownership over 24 months.
Why Global OEMs Trust Our Bearing Supply
Our 100% genuine SKF products come with official authorization certificates, ensuring full traceability from manufacturing to delivery. As part of our ISO 9001 compliant quality management, each bearing undergoes pre-shipment inspection by SKF-certified technicians. With 60+ countries served and a dedicated OEM service team, we provide personalized technical support—from model selection based on operating conditions to installation guidance and failure analysis. Our global door-to-door logistics network ensures on-time delivery, whether you need a single emergency replacement or bulk supply for production lines.
Packaging & Shipping
- Original SKF packaging with tamper-evident seals and batch traceability labels
- Reinforced carton pallet packaging for secure transportation
- 3-7 business days delivery for in-stock items to most global destinations
- Flexible shipping options: DHL, FedEx, UPS, air freight, or sea freight
- Real-time logistics tracking provided for all shipments
- Minimum order quantity: 1 piece, ideal for emergency repairs and small-batch requirements
Get Your NN3038 K/SP W33 Bearing Shipped Today
Every day your equipment sits idle costs money. Send us your bearing designation, application details, and required quantity now to receive a formal quotation within 24 hours. Our dedicated account manager will ensure your NN3038 K/SP W33 bearing is processed, inspected, and shipped without delay—so you can get back to production.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every NN3038 K/SP W33 bearing comes with complete traceability documentation and brand authorization certificates to verify authenticity.
Q: How do I confirm this bearing fits my equipment?
A: Provide your equipment model, shaft diameter, and operating conditions (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 provide full after-sales support for warranty claims.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, supporting both emergency repair needs and small-batch procurement.
Q: How quickly can you ship this bearing?
A: In-stock NN3038 K/SP W33 bearings are shipped within 24 hours of order confirmation, with 3-7 business days delivery to most global locations.
Q: How can I verify the bearing's authenticity upon receipt?
A: Each bearing includes SKF's holographic packaging, laser-etched part numbers, and a batch code that can be verified through SKF's official channels. We also provide a full traceability report 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