Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Ensure stable, long-lasting performance for your industrial equipment with the <strong>Double Row Angular Contact Ball Bearing 3306 A-2Z Shielded</strong>—a precision-engineered solution that minimizes downtime and streamlines maintenance. As an official SKF distributor, we guarantee 100% genuine bearings with full traceability, eliminating risks of counterfeit products and ensuring compliance with global quality standards.</p><ul><li>Double-row design delivers enhanced radial and axial load capacity, ideal for high-speed industrial machinery requiring robust stability</li><li>2Z shielded construction provides superior contamination protection, extending service life in harsh operating environments</li><li>Available with steel, copper, or nylon cages to match specific application demands, from heavy-duty manufacturing to precision automation</li><li>Backed by SKF-certified technical support and fast emergency delivery, ensuring your production line stays operational when you need it most</li></ul>
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
| 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. | -- | -- |
Engineered for demanding industrial environments, this SKF bearing series delivers reliable performance across a wide range of heavy-duty and precision applications.
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
Wind turbines, generators, gearboxes, and turbine main shafts.
Cranes, presses, rolling mills, and large industrial gearboxes.
Ship propulsion systems, deck machinery, and offshore platforms.
Kiln drives, ball mills, bucket elevators, and vibrating screens.
Paper machine rolls, dryer sections, and calender rolls.
Need Application Advice?
SKF-Certified Engineer
Selection · Failure analysis · Technical support
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.
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.
Manufactured to ISO P0-P6 tolerance classes. Dimensional accuracy and running accuracy are 100% verified before shipment, with full batch traceability records.
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.
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.
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.
SKF Microlog and Enlight sensors for vibration, temperature, and speed monitoring. Enable predictive maintenance strategies to minimize unplanned downtime and optimize bearing replacement intervals.
| 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 |
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | CNC Machine Tools, Gearboxes, Electric Motors |
| Automotive Manufacturing | Assembly Line Conveyors, Robotic Arms |
| General Machinery | Pumps, Fans, Compressors |
| Material Handling | Conveyor Systems, Elevators |
OEM manufacturers know the cost of bearing failure—unplanned downtime, missed production deadlines, and costly repairs. Gray market bearings often lack proper traceability, leading to customs clearance issues and quality disputes. Multi-layer distribution channels stretch delivery times by 30-50%, making it hard to align with tight production schedules.
As an official SKF distributor, we provide 100% genuine Double Row Angular Contact Ball Bearings with full traceability documentation. Our large centralized warehouse ensures stable bulk supply, while our global door-to-door logistics network delivers your 3306 A-2Z Shielded bearings exactly when you need them. Whether for industrial equipment OEMs or maintenance service providers, we eliminate the risks of counterfeit products and unstable delivery.
The SKF 3306 A-2Z is engineered for industrial machinery operating under combined radial and axial loads. Its double row angular contact design provides high rigidity and axial stiffness, making it ideal for precision equipment like CNC machine spindles and gearboxes. The shielded construction (2Z) protects against contaminants in dusty or moist environments, extending bearing life in challenging working conditions.
The bearing's precision rating options (P0 to P6) allow customization for specific application requirements—P5 or P6 grades deliver tighter tolerances for high-speed rotating equipment, reducing vibration and noise. Available cage materials (steel, copper, nylon) accommodate different temperature ranges and load capacities: steel cages excel in high-temperature environments, while nylon cages reduce friction in moderate-speed applications. The separated design facilitates easy mounting and dismounting, simplifying maintenance procedures and minimizing downtime during replacements.
Counterfeit bearings may offer lower upfront costs, but they often fail prematurely—costing 5-10 times more in production losses and repairs. Our SKF 3306 A-2Z bearings comply with ISO 9001 and SKF global standards, ensuring consistent batch quality and predictable performance. With a focus on full-process quality management, we help you avoid the hidden costs of counterfeit products: equipment damage, production line shutdowns, and liability risks from non-compliant components.
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 genuine SKF products with complete traceability. We offer customized OEM schemes, sample testing for quality verification, and dedicated account managers who track your order from warehouse to delivery. For emergency needs, our fast response system ensures critical bearings reach you when production can't wait.
Don't let bearing procurement delays disrupt your production schedule. Send us your model list, application parameters, and order volume today—we'll issue a formal quotation with certification within 24 hours. With our large inventory and global logistics network, your genuine SKF bearings will be on the way when you need them most.
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 can I confirm if the 3306 A-2Z is suitable for my equipment?
A: Our SKF-certified technical team can help verify compatibility. Provide your equipment model, operating speed, load conditions, and temperature range for a free selection analysis.
Q: What is your warranty policy?
A: All bearings come with SKF's standard manufacturer warranty, covering manufacturing defects. We provide full after-sales support for warranty claims and technical issues.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, supporting both emergency maintenance needs and small-batch trials before mass production.
Q: How long does shipping take?
A: In-stock bearings are typically shipped within 3-7 business days. Delivery time depends on destination, with express options available for urgent requirements.
Q: How do I verify the authenticity of the bearings?
A: Each bearing includes SKF's original packaging with security features, laser-etched part numbers, and batch codes. We provide full traceability documents and can assist with verification 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.
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.
Every shipment includes official SKF certification of origin, verifying product authenticity and manufacturing source.
Full production batch traceability maintained for minimum 5 years. Enables quality audit and failure investigation.
Verified annually by SKF. Our authorized status can be confirmed directly through the SKF distributor verification system.
All products carry SKF manufacturer warranty. Defective products are replaced or refunded -- no questions asked.
SKF QR code and holographic seal on every package. Verify authenticity instantly via SKF's official verification portal.
Authorized Distributor
Shanghai Dunyu Bearing
Official SKF Authorized Distributor
ISO 9001
SKF Authorized
Full Traceability
All products shipped in original SKF packaging with anti-counterfeit seal, QR code, and batch label intact.
Standard export carton for small orders. Custom wooden crates with moisture-proof lining for large/heavy shipments.
Sea freight (FCL/LCL), air freight, and express (DHL/FedEx/UPS). DDP, DAP, CIF, FOB terms all supported.
In-stock items: 1-3 days dispatch. Air freight: 3-7 days door-to-door. Sea freight: 15-35 days by destination.
| 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 |
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.
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.
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.
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.
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.
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.
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 →
Send us your bearing model, quantity, and delivery requirements. Our SKF-certified team will respond with a formal quotation, traceability certificate, and logistics plan.