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
Cylindrical Roller Bearing SKF N230em NJ230em NU230em for Industrial Machinery OEM
Cylindrical Roller Bearing SKF N230em NJ230em NU230em for Industrial Machinery OEM
In Stock · Ready to Ship
<p>Ensure seamless industrial machinery performance with SKF Cylindrical Roller Bearings—engineered for reliable OEM integration and long-term operational stability. These N230em, NJ230em, and NU230em models deliver exceptional radial load handling (170x310x52mm dimensions) and precision grading options (P0-P2), making them ideal for high-torque applications in manufacturing lines.</p><ul><li>100% genuine SKF certified components with full traceability documentation to streamline compliance and avoid supply chain disruptions</li><li>Separated inner/outer ring design allows for easy mounting/dismounting during maintenance, reducing downtime for production teams</li><li>Direct from authorized distributor with bulk inventory support—no multi-tier delays, just consistent quality for your critical machinery builds</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
Cylindrical Roller Bearing SKF N230em NJ230em NU230em for Industrial Machinery OEM -- 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. | NU234EM |
| Outer Dimension | 35mm-400mm |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Radial Bearing |
| Separated | Separated |
| Product Name | Cylindrical Roller Bearing |
| Structure | Cylindrical |
| Seals Type | Open |
| Lubricate | Oil Grease Dry |
| Precision Rating | P0 P6 P5 P4 P2 |
| Number of Row | Single Row |
| Service | OEM ODM |
| Transport Package | Carton Pallet |
| Specification | 170*310*52 mm |
| Trademark | SKF |
| Origin | Sweden |
| HS Code | 8482500090 |
| Production Capacity | 100000 |
| Package Size | 33.00cm * 33.00cm * 7.20cm |
| Package Gross Weight | 19.300kg |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | Electric Motors, Gearboxes, Pumps, Fans |
| Automotive Manufacturing | Assembly Line Conveyors, Stamping Presses |
| General Manufacturing | CNC Machine Tools, Material Handling Systems |
| Heavy Industry | Crushers, Mixers, Compressors |
Stop Production Delays with Genuine SKF Cylindrical Roller Bearings N230em NJ230em NU230em
OEM manufacturers know the cost of bearing failure: unplanned downtime, missed production deadlines, and expensive repairs. Gray market bearings often lack proper traceability, leading to customs clearance issues and quality disputes. Multi-layer distribution channels stretch delivery times by 30-50%, making it nearly impossible to align with tight production schedules. When your machinery relies on precise components, these challenges can disrupt your entire operation.
Genuine SKF Cylindrical Bearings for Reliable Industrial Performance
As an official SKF distributor, we provide 100% genuine Cylindrical Roller Bearings including SKF N230em, NJ230em, and NU230em variants—designed to deliver consistent performance in industrial machinery. Our large centralized warehouse ensures stable bulk supply, while our streamlined distribution network eliminates unnecessary delays. Whether used in high-speed electric motors, heavy-duty gearboxes, or continuous-duty conveyors, these bearings meet SKF global standards for quality and reliability.
Engineered for Demanding Industrial Conditions
SKF N230em, NJ230em, and NU230em bearings excel in applications with high radial loads and moderate speeds—common in industrial machinery like pumps, fans, and material processing equipment. Their separated inner and outer rings allow for easy mounting and dismounting, simplifying maintenance. The open design accommodates various lubrication methods, ensuring optimal performance in environments ranging from clean manufacturing facilities to dusty industrial plants. When your equipment operates under continuous stress, choosing the right bearing directly impacts productivity and operational costs.
Technical Features That Ensure Longevity
The performance of SKF Cylindrical Roller Bearings stems from critical technical specifications. Precision ratings from P0 to P2 ensure minimal vibration and noise, crucial for high-precision machinery. The single-row design balances load capacity with compact dimensions, making it suitable for space-constrained applications. Constructed from high-grade bearing steel, these bearings offer excellent durability and resistance to wear, even under heavy loads. The separated structure allows for axial displacement between shaft and housing, accommodating thermal expansion in high-temperature operations. Each parameter is engineered to work together, delivering the reliability industrial OEMs require.
Avoid Hidden Costs with Authentic SKF Bearings
Counterfeit bearings may seem like a cost-saving option, but they often lead to higher total costs. Substandard materials and manufacturing processes result in premature failure, causing unplanned downtime that can cost thousands per hour in lost production. In contrast, genuine SKF N230em, NJ230em, and NU230em bearings come with full traceability documentation, ensuring compliance with export requirements and quality standards. By investing in authentic SKF Cylindrical Bearings, you reduce the risk of equipment damage, extend maintenance intervals, and protect your production schedule—ultimately lowering your total cost of ownership.
Why Industrial OEMs Choose Our SKF Bearings
Our standing as an official SKF distributor means every bearing can be traced back to SKF's manufacturing facilities, complete with certification documentation. We implement full-process quality management compliant with ISO 9001 and SKF global standards, including incoming inspections and pre-shipment verification. With a SKF-certified technical team, we provide application-specific support—from model selection to installation guidance. Our global door-to-door logistics network serves over 60 countries, with dedicated account managers tracking each order from warehouse to delivery. For OEMs requiring customized solutions, we offer tailored supply agreements with reserved inventory, ensuring consistent availability for your production lines.
Packaging & Shipping
- Original SKF packaging with product certification and traceability documents
- Reinforced carton and pallet packaging to prevent damage during transit
- Global door-to-door delivery via DHL, FedEx, UPS, air freight, or sea freight
- Real-time logistics tracking provided for all shipments
- Flexible order quantities—from single units for emergency repairs to bulk OEM orders
Get Your SKF Cylindrical Roller Bearings Today
Don’t let bearing issues disrupt your production. Send us your model requirements, application parameters, and order volume, and we’ll deliver a formal quotation with certification within 24 hours. Our inventory includes SKF N230em, NJ230em, and NU230em bearings, ready for immediate dispatch. Whether you need a small batch for testing or a long-term supply agreement, we’re equipped to support your industrial machinery OEM needs.
Frequently Asked Questions
Q: Are these SKF bearings 100% genuine?
A: Yes, we are an official authorized SKF distributor. Every bearing comes with complete traceability documentation and brand authorization certificates 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 specifications or existing bearing details, and we’ll verify compatibility based on load, speed, and operating conditions.
Q: What is your warranty policy for SKF bearings?
A: All bearings are covered by SKF’s standard manufacturer warranty, which includes replacement for any manufacturing defects. We provide full after-sales support for warranty claims.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making us suitable for both emergency maintenance and large-scale OEM production requirements.
Q: How long
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