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 Equipment High Load Capacity
Double Row Angular Contact Ball Bearing 3309 A/C3 for Heavy Equipment High Load Capacity
In Stock · Ready to Ship
<p>Ensure your heavy equipment operates at peak efficiency with the <strong>Double Row Angular Contact Ball Bearing 3309 A/C3</strong>, engineered to deliver exceptional high load capacity for demanding industrial applications. As an official SKF distributor, we guarantee 100% genuine bearings with full traceability, eliminating the risks of counterfeit products and ensuring seamless compliance with export documentation requirements.</p><ul><li>Designed with a steel, copper, or nylon cage option to accommodate varying working conditions, this SKF angular contact bearing maintains precise alignment under radial and axial loads, reducing downtime and extending machinery lifespan.</li><li>Benefit from our centralized warehouse and fast emergency delivery, ensuring your production schedule stays on track with reliable, batch-stable supply.</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 Equipment 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 |
| Specification | As Your Request |
| Trademark | SKF |
| Origin | Jiangsu China |
| Production Capacity | 1000000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Construction Machinery | Excavators, Loaders, Bulldozers |
| Industrial Manufacturing | Heavy Duty Gearboxes, Press Machines |
| Mining | Conveyors, Crushers, Drilling Equipment |
| Agriculture | Harvesters, Tractors, Threshers |
| Material Handling | Forklifts, Cranes, Hoists |
Eliminate Downtime Risks with SKF 3309 A/C3 Double Row Angular Contact Ball Bearing
OEM manufacturers across heavy industries face recurring challenges: counterfeit bearings causing premature failures, extended lead times disrupting production schedules, and insufficient technical support increasing maintenance costs. When critical equipment like excavator gearboxes or conveyor systems fail due to substandard bearings, the average production line loses 4-8 hours of operation, translating to thousands in lost revenue.
Authentic SKF 3309 A/C3 Bearings: In Stock and Traceable
As an official SKF authorized distributor, we provide 100% genuine Double Row Angular Contact Ball Bearings with full traceability documentation. Our centralized warehouse maintains large inventory of SKF 3309 A/C3 models, ensuring 3-7 day delivery for urgent maintenance needs. Each bearing undergoes ISO 9001 compliant quality checks before shipment, making it ideal for heavy equipment applications requiring high load capacity and reliable performance.
Engineered for Heavy Load Applications
The SKF 3309 A/C3 Double Row Angular Contact Ball Bearing is specifically designed to handle combined radial and axial loads in heavy machinery. Its double row structure provides increased rigidity and load-carrying capacity compared to single row designs, making it suitable for high-torque applications such as industrial gearboxes and construction equipment transmissions. The C3 clearance class allows for thermal expansion during continuous operation, reducing friction and extending service life in demanding environments.
Key Technical Features Enhancing Performance
The bearing's precision rating options (P0 to P5) cater to different application requirements, with higher precision grades minimizing vibration in high-speed equipment. Its bearing steel construction ensures durability under heavy loads, while multiple cage material options (steel, copper, nylon) allow customization based on operating temperature and speed conditions. The separated design facilitates easier installation and maintenance, reducing downtime during equipment overhauls. Proper lubrication with oil or grease, as specified in SKF guidelines, optimizes performance in both low and high-temperature environments.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Counterfeit bearings often appear cost-effective initially but typically fail within 30-50% of the service life of genuine SKF products. A single bearing failure in heavy equipment can cause secondary damage to shafts, housings, and gears, resulting in repair costs 5-10 times the bearing's value. Genuine SKF 3309 A/C3 bearings, backed by SKF global standards, provide consistent performance and predictable maintenance intervals, significantly lowering long-term operational costs. Our customers report 40% fewer bearing-related breakdowns after switching to authorized supply channels.
Our Commitment to Reliable Supply
With over 15 years as an SKF authorized distributor, we serve industrial clients in 60+ countries, including major OEMs and maintenance providers. Our SKF-certified technical team offers free model selection support based on your equipment's working conditions, ensuring optimal bearing performance. We maintain a production capacity of 1,000,000 units annually, guaranteeing stable bulk supply even during peak demand periods. Every order includes complete traceability documentation, facilitating customs clearance for export projects and ensuring compliance with international quality standards.
Packaging & Shipping
- Original SKF packaging withé˜²ä¼ªæ ‡ç¾ and product certification
- Reinforced carton pallet packaging for secure transportation
- 3-7 business days delivery for in-stock items
- Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
- Real-time tracking number provided upon shipment
- Minimum order quantity of 1 unit, supporting emergency repairs
Secure Your Equipment's Performance Today
Delayed bearing replacement increases the risk of unexpected equipment failure and production downtime. Send us your equipment model, operating parameters, and required quantity now to receive a formal quotation within 24 hours. Our dedicated account managers ensure smooth order processing from inquiry to delivery, with after-sales technical support available throughout the bearing's service life.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with complete traceability documentation and brand authorization certificates to verify authenticity.
Q: How do I confirm if the 3309 A/C3 is suitable for my equipment?
A: Provide your equipment model, load requirements, operating speed, and temperature conditions. Our SKF-certified technical team will verify compatibility and recommend the optimal bearing solution.
Q: What is your warranty policy?
A: We offer the standard SKF manufacturer warranty. Any manufacturing defects will be replaced unconditionally, with full after-sales support for warranty claims.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, allowing for emergency maintenance needs and small-batch trials before bulk procurement.
Q: How long does shipping take?
A: In-stock bearings are shipped within 3-7 business days. We offer flexible logistics options including express, air, and sea freight to meet your delivery timeline.
Q: How can I verify the bearing's authenticity?
A: Each bearing includes SKF's original packaging with防伪 labels, laser-etched part numbers, and batch codes. We provide full traceability documents that can be 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.
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