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 Bearings NN3030 NN3032 NN3036 K/SP W33 for General Machinery
Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3036 K/SP W33 for General Machinery
In Stock · Ready to Ship
<p>Ensure uninterrupted production with <strong>Double Row Cylindrical Roller Bearings</strong> engineered for general machinery—delivering exceptional radial load capacity and precise operation to keep your equipment running at peak efficiency. These SKF-grade bearings (including NN3030, NN3032 W33, and NN3036 K/SP variants) feature brass cages for reduced friction and enhanced durability, even in high-speed industrial applications.</p><ul><li>Medium to large outer dimensions (120-190mm) with separated inner/outer rings for easy installation and maintenance</li><li>Precision clearance options (C0-C5) and vibration grades (Z1V1-Z3V3) tailored to your specific working conditions</li><li>60-64 HRC hardness ensures long service life, minimizing downtime and replacement costs</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 Bearings NN3030 NN3032 NN3036 K/SP W33 for General 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. | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| General Machinery | Electric Motors, Gearboxes, Pumps, Fans |
| Industrial Equipment | Machine Tools, Conveyors, Compressors |
| Manufacturing | Production Line Integrators, Factory Upgrading Machinery |
Stop Production Delays with Reliable Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3036 K/SP W33
OEM manufacturers know the frustration: counterfeit bearings failing prematurely, causing unplanned downtime and production line stoppages. Multi-layer distribution channels stretch delivery times by 30-50%, making it nearly impossible to align with tight production schedules. Even when bearings arrive, many suppliers offer no technical support for model selection or installation, leaving your team to bear the risks of incorrect application.
Genuine SKF Double Row Cylindrical Roller Bearings In Stock for Immediate Shipment
As an official SKF authorized distributor, we eliminate these pain points with Double Row Cylindrical Roller Bearings designed for general machinery. Our large centralized warehouse ensures models like NN3030, NN3032 W33, and NN3036 K/SP are ready for fast delivery, supporting both scheduled production and emergency maintenance needs. Each bearing comes with full traceability documentation, ensuring compliance with export requirements and avoiding customs clearance delays.
Optimal Performance in Heavy-Duty Industrial Applications
These High Precision Cylindrical Roller Bearings with Brass Cage excel in applications involving high radial loads and moderate axial loads, common in gearboxes, electric motors, and machine tools. The separated design allows for easy mounting and dismounting, simplifying maintenance procedures. With outer dimensions ranging from 120-190mm, they are engineered to handle the demands of medium and large industrial equipment operating in continuous-duty environments.
Key Technical Features That Ensure Long Service Life
The bearing steel construction provides a hardness of 60-64 HRC, delivering exceptional wear resistance and durability under heavy loads. Available clearance grades (C0, C2, C3, C4, C5) allow precise matching to application requirements—tighter clearances for high-precision machinery and looser clearances for thermal expansion compensation in high-temperature operations. Vibration classes Z1V1 to Z3V3 ensure smooth operation, reducing noise and extending equipment lifespan. The brass cage option enhances stability at higher speeds compared to steel alternatives, improving lubricant distribution and heat dissipation.
Avoid Hidden Costs: The Value of Authentic SKF Bearings
Choosing non-genuine bearings may seem cost-effective initially, but the true cost becomes apparent when equipment fails. A single bearing failure can cause production losses exceeding $10,000 per hour in manufacturing settings, not counting repair costs or damage to associated components. Our 100% genuine SKF bearings, compliant with ISO 9001 and SKF global standards, reduce these risks through rigorous quality control. Each bearing undergoes full-process quality management, from material selection to final inspection, ensuring batch consistency and reliable performance.
Why Industrial OEMs Choose Our Bearing Solutions
Our official SKF authorization guarantees full traceability for every bearing, with documentation linking each unit to the original manufacturing batch. We serve over 60 countries worldwide, supported by a SKF-certified technical team that provides application-specific model selection and installation guidance. Our centralized warehouse maintains large inventories, enabling door-to-door delivery within 3-7 business days for most regions. For OEMs, we offer customized supply agreements with dedicated inventory reservation, ensuring stable bulk supply that aligns with production schedules. Every order is managed by a dedicated account manager, providing real-time visibility from warehousing to after-sales support.
Packaging & Shipping
- Original SKF packaging with carton pallet reinforcement for secure transport
- 现货 available for delivery within 3-7 business days
- Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking number provided for all shipments
- Minimum order quantity of 1 piece, supporting both emergency repairs and small-batch procurement
Get Your Bearings Delivered Before Production Stalls
Don’t let bearing-related delays impact your bottom line. Whether you need NN3030, NN3032 W33, NN3036 K/SP, or other Double Row Cylindrical Roller Bearings, we have the inventory and expertise to meet your needs. Sending your model list and quantity today means faster processing and earlier delivery—keeping your production lines running and reducing downtime risks.
Frequently Asked Questions
Q: Are these bearings 100% genuine SKF products?
A: Yes, as an official authorized SKF distributor, every bearing we supply is genuine and comes with full traceability documentation to verify authenticity.
Q: How can I confirm the correct bearing model for my equipment?
A: Our SKF-certified technical team can assist with model selection. Provide your equipment model, operating conditions (load, speed, temperature), and we will recommend the appropriate bearing.
Q: What is the warranty policy for these bearings?
A: All SKF bearings are covered by the manufacturer’s warranty, which includes replacement for manufacturing defects. Our team provides full support for warranty claims.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, making us suitable for emergency repairs, small-batch trials, or large-scale production requirements.
Q: How quickly can you ship after ordering?
A: In-stock bearings are typically shipped within 24-48 hours, with delivery times of 3-7 business days depending on your location via our global logistics partners.
Q: How can I verify the authenticity of the bearings upon receipt?
A: Each bearing includes SKF’s original packaging with security features, laser-etched markings, and traceability certificates. You can also cross-verify using SKF’s official verification tools with the provided documentation.
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