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
Angular Contact Bearing
Double Row Angular Contact Ball Bearing 3309 A/C3 for Heavy Machinery High Load Capacity
Double Row Angular Contact Ball Bearing 3309 A/C3 for Heavy Machinery High Load Capacity
In Stock · Ready to Ship
<p>Ensure uninterrupted heavy machinery performance with the <strong>SKF 3309 A/C3 Double Row Angular Contact Ball Bearing</strong>—engineered to deliver exceptional high load capacity while maintaining precise alignment under extreme operating conditions. This genuine SKF component eliminates common supply chain risks with full traceability documentation, ensuring seamless customs clearance and quality compliance for your production line.</p><ul><li>Double row angular contact design handles combined radial and axial loads up to 40% higher than single row alternatives, ideal for heavy-duty applications like gearboxes and industrial presses</li><li>C3 radial clearance provides optimal thermal expansion allowance, reducing premature bearing failure in high-temperature environments</li><li>SKF-certified steel cage construction ensures consistent load distribution and extended service life, minimizing unplanned downtime</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 Angular Contact Ball Bearing 3309 A/C3 for Heavy Machinery High Load Capacity -- Parameter Sheet
SKF · Angular Contact Bearing
| Parameter | Value | Unit / Note |
|---|---|---|
| Bearing Series | -- | Angular Contact 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 Angular Contact Ball Bearing |
| Separated | Separated |
| Rows Number | Double |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Precision Rating | P0 P2 P4 P5 P6 |
| Type | Ball |
| Structure | Angular Contact |
| Cage | Steel Cage.Copper Cage.Nylon Cage |
| Lubrication | Oil Grease |
| Transport Package | Carton Pallet |
| Trademark | SKF |
| Origin | Jiangsu China |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Heavy Machinery | Construction Equipment, Mining Machinery, Material Handling Systems |
| Industrial Manufacturing | Machine Tools, Gearboxes, Press Machines |
| Agriculture | Harvesters, Tractors, Heavy Duty Conveyors |
| Energy | Compressors, Industrial Pumps, Generators |
Stop Equipment Downtime with Genuine SKF 3309 A/C3 Double Row Angular Contact Ball Bearing
Production managers know the frustration: unexpected bearing failure in heavy machinery halts operations, costing thousands in downtime. Gray market bearings often fail prematurely due to substandard materials, while multi-tier distributors delay deliveries by 30-50%, leaving maintenance teams scrambling to keep production on schedule.
Genuine SKF 3309 A/C3 Bearings with Full Traceability and Stable Supply
As an official SKF distributor, we provide 100% authentic Double Row Angular Contact Ball Bearing 3309 A/C3 with complete certification documentation. Our large centralized warehouse ensures bulk stock availability, eliminating the long lead times of traditional distribution channels. Whether for heavy machinery gearboxes, industrial conveyors, or construction equipment, this bearing delivers consistent performance under high load conditions.
Engineered for Heavy Load Applications in Demanding Environments
The SKF 3309 A/C3 is specifically designed for heavy machinery where radial and axial loads combine. Its double row angular contact design provides high load capacity and rigidity, making it ideal for equipment operating under continuous heavy stress such as mining crushers, construction excavators, and industrial presses. The C3 clearance ensures optimal performance even with temperature variations during extended operation.
Key Technical Features That Ensure Reliability
The bearing's precision rating options (P0 to P6) allow customization for specific application requirements—higher precision grades (P4/P5) reduce vibration in high-speed machinery, while standard grades (P0) offer cost-effective solutions for general industrial use. Multiple cage materials provide flexibility: steel cages excel in high-temperature environments, copper cages offer enhanced durability for shock-loaded applications, and nylon cages reduce friction in high-speed operations. The bearing steel construction ensures resistance to wear and fatigue, extending service life in heavy load scenarios.
Why Genuine SKF Bearings Lower Total Cost of Ownership
Counterfeit bearings may cost less upfront, but they often lead to hidden expenses: early failures cause unplanned downtime, damage to adjacent components, and increased maintenance labor. In contrast, genuine SKF 3309 A/C3 bearings meet ISO 9001 and SKF global standards, ensuring consistent batch quality and predictable performance. Their longer service life and reduced failure risk lower total ownership costs significantly compared to non-genuine alternatives.
Your Trusted Partner for OEM Bearing Supply
With over 60 countries served and a SKF-certified technical team, we stand behind every bearing we supply. Our vertical distribution model eliminates middlemen, ensuring direct access to SKF's quality assurance processes. Each bearing comes with full traceability documentation, from manufacturing to delivery, supporting export compliance requirements. We offer dedicated account managers to oversee your order from quotation to after-sales support, with real-time visibility of all progress nodes.
Packaging & Shipping
- Original SKF packaging with manufacturer's certification and traceability documents
- Reinforced carton pallet packaging for secure transportation
- Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
- Real-time shipment tracking provided upon dispatch
- Flexible order quantities, including 1-piece emergency orders
Get Your SKF 3309 A/C3 Bearing Shipped Fast
Don't let bearing issues slow down your production. Send us your model requirements, application details, and order volume today. We'll issue a formal quotation with certification within 24 hours, and our stock availability means you can get the bearings you need without unnecessary delays.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with full traceability documentation and brand authorization certificates to verify authenticity.
Q: How can I confirm if the 3309 A/C3 is suitable for my equipment?
A: Our SKF-certified technical team can assist with model selection. Provide your equipment type, operating conditions (load, speed, temperature), and we'll verify compatibility at no cost.
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 repairs and bulk OEM requirements.
Q: How long does shipping take?
A: In-stock bearings are shipped within 3-7 business days. Delivery time depends on your location and chosen logistics method.
Q: How can I verify the bearing's authenticity upon receipt?
A: Check the packaging for SKF's official holographic labels, laser-etched part numbers on the bearing, and scan the QR code for online verification. We also provide complete traceability documents with each order.
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