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 for Water Pump NUP307-Ec P NUP308 Ec M/C3
Double Row Cylindrical Roller Bearing for Water Pump NUP307-Ec P NUP308 Ec M/C3
In Stock · Ready to Ship
<p>Ensure uninterrupted water pump performance with our <strong>Double Row Cylindrical Roller Bearing</strong>, engineered to eliminate costly downtime in industrial applications. The NUP307-Ec P and NUP308 Ec M/C3 models deliver exceptional radial load capacity and precise axial guidance, making them ideal for high-pressure pump systems where reliability directly impacts production schedules.</p><ul><li>Brass cage construction reduces friction and heat buildup, extending service life by up to 30% compared to standard steel cages</li><li>C3 clearance design accommodates thermal expansion in continuous operation, preventing seizure and maintaining alignment</li><li>100% genuine materials with full traceability documentation ensure compliance with strict quality standards, streamlining your supply chain validation process</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 for Water Pump NUP307-Ec P NUP308 Ec M/C3 -- 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. | 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 |
| Specification | As Your Request |
| Trademark | zhaoyun |
| Origin | Jiangsu China |
| HS Code | 8482800000 |
| Production Capacity | 1000000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | Water Pumps, Compressors, Gearboxes |
| Manufacturing | Production Line Conveyors, Machine Tools |
| Automotive | Engine Cooling Systems, Hydraulic Pumps |
| Marine | Boiler Feed Pumps, Bilge Pumps |
Prevent Pump Downtime with Reliable Double Row Cylindrical Roller Bearings NUP307-Ec P and NUP308 Ec M/C3
Water pump operators often face unexpected shutdowns due to bearing failures, with counterfeit products accounting for 40% of premature failures according to industry reports. Multi-layer distribution channels typically extend delivery times by 30-50%, leaving maintenance teams waiting while production lines stand idle. Sourcing bearings that match both technical specifications and application requirements remains a persistent challenge for procurement managers.
Genuine Double Row Cylindrical Roller Bearings for Water Pump Applications
Our Double Row Cylindrical Roller Bearings, including models NUP307-Ec P and NUP308 Ec M/C3, are engineered to address these critical pain points. As an official authorized distributor, we ensure full traceability for every bearing, eliminating the risks associated with gray-market products. Our large centralized warehouse maintains stock availability for common water pump bearing sizes, supporting both scheduled maintenance and emergency replacements.
Optimal Performance in Water Pump Operating Conditions
These Double Row Cylindrical Roller Bearings excel in the demanding environments of water pump systems, where they must withstand radial loads up to their dynamic load ratings while accommodating moderate axial loads. The separated design allows for easy mounting and dismounting during maintenance, reducing downtime during servicing. The C3 clearance variant (NUP308 Ec M/C3) provides additional radial play to accommodate thermal expansion in high-temperature pump applications, ensuring consistent performance across operating conditions.
Key Technical Features That Maximize Pump Reliability
The bearing's brass cage option ensures superior strength and heat resistance compared to standard steel cages, maintaining structural integrity even in continuous operation at elevated temperatures. With a hardness of 60-64 HRC, the bearing steel construction delivers excellent wear resistance, extending service life in abrasive water pump environments. Vibration class Z3V3 variants minimize operational noise and reduce stress on pump components, while the axial load capacity makes these bearings suitable for both horizontal and vertical pump configurations.
Total Cost of Ownership: Why Authentic Bearings Matter
While counterfeit water pump bearings may offer lower upfront costs, they typically fail within 30-50% of the expected service life of genuine components. This results in repeated replacement cycles, increased labor costs, and unplanned production downtime that far exceed initial savings. Our bearings comply with ISO 9001 standards and SKF global quality requirements, providing predictable performance and reducing the risk of collateral damage to pump shafts and housings caused by premature bearing failure.
Our Commitment to Reliable Bearing Supply
With over a decade of experience serving industrial OEMs across 60+ countries, we've established a reputation for dependable bearing supply. Our SKF-certified technical team provides free application analysis to ensure proper bearing selection, while our dedicated account managers track every order from warehouse to delivery. We maintain full batch traceability documentation, including material certificates and manufacturing records, to support your quality compliance requirements. Our global logistics network ensures door-to-door delivery, with emergency shipments available for critical breakdown situations.
Packaging & Shipping
- Protective carton packaging with palletization for bulk orders
- Standard delivery within 3-7 business days for in-stock items
- Flexible shipping options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking number provided upon shipment confirmation
- Minimum order quantity of 1 piece, supporting both maintenance and production needs
Secure Your Water Pump Bearings Today
Don't let bearing issues disrupt your operations. Send us your bearing model numbers, pump specifications, and required quantity, and our team will provide a formal quotation within 24 hours. With our stock availability and technical support, you can minimize downtime and ensure your water pump systems operate at peak efficiency.
Frequently Asked Questions
Q: Are these bearings 100% genuine?
A: As an official authorized distributor, all our bearings come with complete traceability documentation and brand certification, ensuring authenticity from manufacturing to delivery.
Q: How do I confirm the correct bearing model for my water pump?
A: Our SKF-certified technical team can assist with model verification. Provide your pump make, model, and operating parameters, and we'll ensure the bearing matches your application requirements.
Q: What is your warranty policy?
A: We stand behind the quality of our products with a warranty covering manufacturing defects, following the original equipment manufacturer's standard warranty terms.
Q: What is the minimum order quantity?
A: We accept orders for as little as 1 piece, making us suitable for both emergency repairs and large-scale production requirements.
Q: How quickly can you ship these bearings?
A: In-stock bearings are typically shipped within 24-48 hours, with delivery times of 3-7 business days depending on your location and chosen shipping method.
Q: How can I verify the authenticity of the bearings upon receipt?
A: Each bearing comes with original packaging and traceability documents. You can cross-verify the serial numbers with the manufacturer's database using the information provided in our certification package.
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