Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
Main View
100% Genuine SKF
Full Traceability
ISO 9001 Certified
SKF Authorized
Angular Contact Bearing
Double Row Angular Contact Ball Bearing 3311-a-C3 for Heavy Machinery High Load Capacity
Double Row Angular Contact Ball Bearing 3311-a-C3 for Heavy Machinery High Load Capacity
In Stock · Ready to Ship
<p>Ensure your heavy machinery operates at peak performance with the <strong>Double Row Angular Contact Ball Bearing 3311-a-C3</strong>, engineered to handle high radial and axial loads with exceptional stability. As an official SKF distributor, we guarantee 100% genuine bearings with full traceability documentation, eliminating customs clearance delays and quality concerns for your production line.</p><ul><li>Double row angular contact design delivers superior load distribution, reducing downtime in heavy-duty applications like industrial gearboxes and construction equipment</li><li>C3 clearance rating optimizes thermal expansion management, critical for continuous operation under varying temperature conditions</li><li>Steel cage construction ensures durability and consistent performance, backed by SKF-certified technical support for installation and maintenance guidance</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 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
-
Bearings: Deep Groove · Spherical · Cylindrical · Tapered · Thrust · Angular Contact
-
Sealing: Radial shaft seals · V-rings · Labyrinth seals · Bearing isolators
-
Lubrication: LGMT 2/3 grease · Automatic lubricators · Centralized systems
-
Mounting Tools: Induction heaters · Fitting kits · TMFT 36 · Alignment tools
-
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, Presses |
| Power Generation | Generators, Compressors, Pump Systems |
| Transportation | Heavy-Duty Vehicles, Rail Locomotives, Conveyor Systems |
Stop Production Delays with Genuine SKF 3311-a-C3 Double Row Angular Contact Ball Bearing
OEM manufacturers know the frustration of equipment breakdowns caused by counterfeit bearings—costing thousands in downtime and repairs. Sourcing reliable high load capacity bearings often means navigating multi-tier distributors with unpredictable lead times, leaving production schedules vulnerable to delays.
Genuine SKF 3311-a-C3 Bearings: In Stock and Traceable
As an official SKF distributor, we provide 100% genuine Double Row Angular Contact Ball Bearings with full traceability documentation, eliminating customs clearance issues and quality disputes. Our large centralized warehouse ensures stable bulk supply, with emergency delivery options to keep your heavy machinery running without interruption.
Engineered for Heavy Machinery High Load Applications
The SKF 3311-a-C3 is specifically designed for heavy machinery operating under high radial and axial loads. Its double row angular contact structure delivers enhanced rigidity and load distribution, making it ideal for equipment like excavators, crushers, and industrial gearboxes where reliability under stress is critical.
Technical Features That Ensure Performance
The bearing's precision rating options (P0 to P6) allow customization for application-specific accuracy requirements, reducing vibration and extending service life. Available with steel, copper, or nylon cages, it adapts to different operating temperatures and lubrication needs. The C3 clearance class provides optimal internal space for thermal expansion in high-load scenarios, preventing premature failure under heat and stress.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Counterfeit Heavy Machinery Bearings may offer lower upfront costs, but they typically fail 30-50% earlier than genuine SKF products—leading to unplanned downtime, replacement labor, and potential damage to adjacent components. Our ISO 9001 compliant quality management ensures each bearing meets SKF global standards, delivering consistent performance that lowers long-term maintenance expenses.
Our Commitment to Reliable Supply
With over 60+ countries served, our authorized distribution network provides direct access to SKF's global production facilities. Our SKF-certified technical team offers free model selection support based on your working conditions, while dedicated account managers track orders from warehouse to delivery. We maintain inventory for critical SKF Double Row Bearings to support both scheduled production and emergency maintenance needs.
Packaging & Shipping
- Original SKF packaging with authentication labels and batch traceability documents
- 3-7 business days delivery for in-stock items
- Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
- Real-time shipment tracking provided upon dispatch
- Minimum order quantity of 1 piece, supporting small-batch trials and urgent repairs
Get Your SKF 3311-a-C3 Bearing Today
Don't let bearing issues halt your production. Send us your model requirements, operating parameters, and order volume for a formal quotation within 24 hours. Our in-stock inventory means faster delivery, getting your heavy machinery back to full capacity sooner.
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 certification to verify authenticity.
Q: How can I confirm the 3311-a-C3 is suitable for my equipment?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will conduct a free compatibility check.
Q: What is the warranty policy?
A: All bearings come with SKF's standard manufacturer warranty, covering manufacturing defects with unconditional replacement.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, supporting both emergency repairs and small-batch testing before mass procurement.
Q: How long does shipping take?
A: In-stock items ship within 3-7 business days. We offer multiple logistics options to match your delivery timeline requirements.
Q: How can I verify the bearing's authenticity?
A: Each bearing includes SKF's original packaging withé˜²ä¼ªæ ‡ç¾, laser-etched part numbers, and traceability certificates. We can also provide verification through SKF's official channels upon request.
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