Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Ensure precise shaft alignment and minimize unplanned downtime with our <strong>Clearance Adjustable Double Row Cylindrical Roller Bearings NU2234 EC ML</strong> – engineered to deliver consistent performance in heavy-duty industrial machinery. Designed with separable inner/outer rings and C0-C5 clearance options, these bearing steel rollers (60-64 HRC hardness) adapt to thermal expansion and variable loads, eliminating the frustration of mismatched components and unreliable operation.</p><ul><li>Non-aligning design maintains rigidity under radial loads, ideal for gearboxes and large motors</li><li>Brass/steel cage options balance durability and high-speed stability in continuous operation</li><li>Medium-large outer dimensions (120-190mm) support heavy machinery with minimal vibration (Z1V1-Z3V3 grades)</li></ul>
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
| 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. | -- | -- |
Engineered for demanding industrial environments, this SKF bearing series delivers reliable performance across a wide range of heavy-duty and precision applications.
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
Wind turbines, generators, gearboxes, and turbine main shafts.
Cranes, presses, rolling mills, and large industrial gearboxes.
Ship propulsion systems, deck machinery, and offshore platforms.
Kiln drives, ball mills, bucket elevators, and vibrating screens.
Paper machine rolls, dryer sections, and calender rolls.
Need Application Advice?
SKF-Certified Engineer
Selection · Failure analysis · Technical support
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.
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.
Manufactured to ISO P0-P6 tolerance classes. Dimensional accuracy and running accuracy are 100% verified before shipment, with full batch traceability records.
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.
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.
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.
SKF Microlog and Enlight sensors for vibration, temperature, and speed monitoring. Enable predictive maintenance strategies to minimize unplanned downtime and optimize bearing replacement intervals.
| 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 |
| Industry | Typical Equipment |
|---|---|
| General Machinery | Electric Motors, Gearboxes, Pumps, Fans |
| Industrial Manufacturing | Conveyors, Compressors, Machine Tools |
OEM manufacturers know the frustration of unexpected production line halts caused by bearing failures. Gray market bearings often lack proper traceability, leading to customs delays and quality disputes. Multi-layer distribution channels stretch delivery times by 30–50%, making it nearly impossible to align with tight production schedules. When bearings fail prematurely, the cost of downtime, repairs, and lost output quickly adds up.
Our Clearance Adjustable Double Row Cylindrical Roller Bearings NU2234 EC ML address these challenges directly. As an official SKF distributor, we ensure 100% genuine products with full traceability documentation, eliminating counterfeit risks. Our large centralized warehouse stocks a comprehensive range of industrial bearings, allowing for fast emergency delivery to keep your production on track. These Non-Aligning Cylindrical Bearings are designed for industrial machinery, providing the stability and performance your equipment demands.
Double Row Cylindrical Roller Bearings excel in applications with high radial loads and moderate axial loads, common in industrial machinery. The NU2234 EC ML model features a separated design, enabling easy mounting and dismounting—a critical advantage during maintenance. With vibration grades up to Z3V3, these bearings minimize noise and ensure smooth operation even in high-speed rotating equipment. The clearance adjustable feature (C0/C2/C3/C4/C5) allows precise adaptation to specific working conditions, enhancing bearing life and equipment reliability.
The NU2234 EC ML bearings are crafted from high-quality bearing steel with a hardness of 60-64 HRC, ensuring exceptional durability under heavy loads. The cage options—brass or steel—provide flexibility for different operating environments: brass cages offer superior strength at high temperatures, while steel cages provide cost-effective performance in standard applications. The medium and large outer dimension (120-190mm) positions this bearing for use in larger industrial machinery where load capacity and stability are paramount. The separated design simplifies installation, reducing maintenance time and labor costs.
Choosing genuine Industrial Machinery Bearings over counterfeit alternatives delivers long-term value. Counterfeit bearings often fail prematurely, leading to unplanned downtime, increased repair costs, and potential damage to connected components. Our Clearance Adjustable NU2234 EC ML bearings, backed by ISO 9001 and SKF global standards, undergo rigorous quality testing to ensure consistent performance. The ability to select precise clearance levels (C0-C5) optimizes bearing operation for your specific application, extending service life and reducing energy consumption—ultimately lowering your total cost of ownership.
As an official SKF distributor, we stand behind every bearing we supply. Our full-process quality management system ensures compliance with global standards, from incoming inspection to final delivery. With a SKF-certified technical team, we provide professional support for model selection, installation guidance, and failure analysis—helping you avoid costly technical mistakes. We serve over 60 countries worldwide, leveraging global door-to-door logistics to deliver bearings wherever your production facilities are located. Our standardized OEM cooperation process includes 24-hour quotation, sample testing, and dedicated account management for full-cycle visibility.
Don’t let bearing issues disrupt your production schedule. Send us your model list, working condition parameters, and order volume today, and we’ll issue a formal quotation within 24 hours. With our large centralized warehouse, we can arrange quick shipment to minimize downtime. The sooner you secure the right bearings, the sooner your machinery can return to full operation.
Q: Are these genuine SKF bearings?
A: Yes, we are an official authorized SKF distributor. Every bearing comes with full traceability documentation and brand certification to guarantee authenticity.
Q: How do I confirm if the NU2234 EC ML is suitable for my equipment?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will verify the correct bearing selection for your application.
Q: What is your warranty policy?
A: We adhere to SKF's official warranty standards, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 piece, supporting both emergency maintenance needs and large-scale production requirements.
Q: How long does shipping take?
A: For in-stock items, we typically arrange delivery within 3-7 working days via global logistics partners like DHL, FedEx, or UPS, with flexible options for air or sea freight.
Q: How can I verify the authenticity of the bearings?
A: Each bearing includes SKF's official packaging withé˜²ä¼ªæ ‡ç¾ and laser marking. We also provide complete traceability documents that can be cross-verified through SKF's official channels.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
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.
Every shipment includes official SKF certification of origin, verifying product authenticity and manufacturing source.
Full production batch traceability maintained for minimum 5 years. Enables quality audit and failure investigation.
Verified annually by SKF. Our authorized status can be confirmed directly through the SKF distributor verification system.
All products carry SKF manufacturer warranty. Defective products are replaced or refunded -- no questions asked.
SKF QR code and holographic seal on every package. Verify authenticity instantly via SKF's official verification portal.
Authorized Distributor
Shanghai Dunyu Bearing
Official SKF Authorized Distributor
ISO 9001
SKF Authorized
Full Traceability
All products shipped in original SKF packaging with anti-counterfeit seal, QR code, and batch label intact.
Standard export carton for small orders. Custom wooden crates with moisture-proof lining for large/heavy shipments.
Sea freight (FCL/LCL), air freight, and express (DHL/FedEx/UPS). DDP, DAP, CIF, FOB terms all supported.
In-stock items: 1-3 days dispatch. Air freight: 3-7 days door-to-door. Sea freight: 15-35 days by destination.
| 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 |
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.
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.
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.
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.
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.
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.
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 →
Send us your bearing model, quantity, and delivery requirements. Our SKF-certified team will respond with a formal quotation, traceability certificate, and logistics plan.