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 3311-a-C3 for High Load Industrial Machinery
Double Row Angular Contact Ball Bearing 3311-a-C3 for High Load Industrial Machinery
In Stock · Ready to Ship
<p>Ensure your high-load industrial machinery operates with unwavering precision using the <strong>Double Row Angular Contact Ball Bearing 3311-a-C3</strong>, engineered to deliver exceptional radial and axial load handling in heavy-duty applications. As an official SKF authorized distributor, we guarantee 100% genuine bearings with full traceability documentation, eliminating the risks of counterfeit products and compliance issues that can disrupt your production schedule.</p><ul><li>Designed with separable inner ring and steel/copper/nylon cage options for easy maintenance and adaptability to your specific operating conditions</li><li>Precision ratings from P0 to P6 ensure consistent performance under high loads, reducing downtime and extending machinery lifespan</li><li>Backed by SKF's global quality standards and our dedicated technical support team for seamless integration into your industrial systems</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 3311-a-C3 for High Load Industrial Machinery -- 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 |
|---|---|
| Industrial Machinery | Heavy Duty Gearboxes, Hydraulic Pumps, Conveyor Systems |
| Manufacturing | CNC Machine Tools, Press Equipment, Injection Molding Machines |
| Automotive | Transmission Systems, Steering Mechanisms |
| Power Generation | Industrial Generators, Compressors |
Stop Production Delays with Genuine SKF 3311-a-C3 Double Row Angular Contact Ball Bearings
OEM manufacturers across Europe and North America report losing up to 40 production hours monthly due to bearing failures—often traced to counterfeit products with falsified traceability documents. When multi-tier distributors stretch lead times by 30–50%, aligning with tight production schedules becomes nearly impossible, triggering costly line shutdowns.
Genuine SKF 3311-a-C3 Bearings: In Stock and Ready for High Load Applications
As an official SKF authorized distributor, we eliminate these risks with 100% genuine Double Row Angular Contact Ball Bearings like the 3311-a-C3 model. Our centralized warehouse maintains substantial inventory, ensuring your high load industrial machinery gets the exact bearing it needs without unnecessary delays. Each unit comes with full traceability documentation, compliance certificates, and our ISO 9001 quality management guarantee.
Engineered for Heavy Machinery Under Extreme Conditions
The SKF 3311-a-C3 Angular Contact Bearing excels in industrial scenarios with combined radial and axial loads, such as heavy-duty gearboxes and hydraulic presses. Its double row design provides superior rigidity and load-carrying capacity compared to single row alternatives, making it ideal for machinery operating under continuous high stress. The separated structure allows for easy mounting and dismounting during maintenance, reducing downtime during replacements.
Technical Details That Maximize Performance and Lifespan
The 3311-a-C3's precision rating options (P0 to P6) ensure compatibility with applications requiring tight tolerances—from general industrial use (P0) to high-precision machine tools (P5/P6). Its steel, copper, or nylon cage options address specific operational needs: steel cages for high-temperature environments, nylon cages for reduced noise in conveyor systems, and copper cages for enhanced durability in heavy shock-loading conditions. The C3 clearance class accommodates thermal expansion in high-speed applications, preventing premature failure from internal stress.
Why Cutting Corners on Bearings Costs More in the Long Run
Counterfeit Angular Contact Bearings often fail within 30% of the expected service life, leading to secondary damage to shafts and housings. A single bearing failure in a production line can cost $15,000–$40,000 in downtime alone, not counting replacement parts and labor. Our genuine SKF 3311-a-C3 Bearings, backed by SKF global standards, deliver predictable performance and reduce total cost of ownership by minimizing unplanned maintenance and extending equipment lifespan.
Why 60+ Countries Trust Our Bearing Supply
Our 15 years as an authorized SKF distributor ensures every bearing meets strict quality benchmarks. We implement full-process quality management, with incoming inspections and pre-shipment verification. Our SKF-certified technical team provides free application analysis to ensure optimal bearing selection, while our global door-to-door logistics network delivers to your facility within 3–7 business days for in-stock items. With dedicated account managers tracking every order, we’ve built long-term partnerships with industrial equipment OEMs and maintenance providers worldwide.
Packaging & Shipping
- Original SKF packaging with tamper-evident seals and batch traceability labels
- Reinforced carton pallets for secure transportation
- 3–7 business day delivery for in-stock items to major industrial hubs
- Flexible shipping via DHL, FedEx, UPS, air freight, or sea freight
- Real-time tracking number provided upon dispatch
- Minimum order quantity of 1 unit, supporting emergency repairs and small-batch trials
Get Your SKF 3311-a-C3 Bearings Before Production Stalls
Every hour your machinery waits for replacement bearings costs money. Send us your bearing designation, application parameters, and required quantity today—our team will issue a formal quotation with traceability certificates within 24 hours. With our large inventory, you can restore operations faster and avoid the risks of counterfeit or delayed supplies.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
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 do I confirm if the 3311-a-C3 is compatible with my equipment?
A: Provide your equipment model, load requirements, and operating speed. Our SKF-certified technical team will conduct a free compatibility analysis to ensure optimal selection.
Q: What is your warranty policy?
A: We offer the full SKF manufacturer warranty. Any bearing with manufacturing defects will be replaced unconditionally, with full support for warranty claims.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making it easy to source emergency replacement parts or test small batches before full production orders.
Q: How long does shipping take to Europe?
A: In-stock bearings typically arrive in 3–5 business days via express courier (DHL/FedEx). Sea freight options are available for bulk orders with longer lead times.
Q: How can I verify the bearing's authenticity upon receipt?
A: Check the packaging for SKF's holographic label, scan the QR code for batch verification, and cross-reference the serial number with SKF's official database. We also provide a signed traceability certificate 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