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
Heavy Duty Double Row Angular Contact Ball Bearing 3306-A-2Z TN9-MT33 for Gearbox Reducer
Heavy Duty Double Row Angular Contact Ball Bearing 3306-A-2Z TN9-MT33 for Gearbox Reducer
In Stock · Ready to Ship
<p>Ensure gearbox reducer reliability with the <strong>SKF 3306-A-2Z TN9-MT33</strong> double row angular contact ball bearing, engineered to deliver consistent performance in heavy-duty industrial applications. This SKF-certified solution eliminates supply chain uncertainties with full traceability documentation, keeping your production schedule on track and avoiding costly downtime.</p><ul><li>Double row angular contact design handles combined radial and axial loads with precision, critical for high-torque gearbox operations</li><li>2Z steel shields prevent contamination while maintaining optimal lubrication retention, extending service life in harsh environments</li><li>MT33 cage design ensures stable ball guidance under dynamic loads, reducing vibration and noise for smoother reducer operation</li></ul><p>Backed by SKF's global quality standards and our dedicated technical support team, this bearing isn't just a component—it's a long-term production reliability partner.</p>
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
Heavy Duty Double Row Angular Contact Ball Bearing 3306-A-2Z TN9-MT33 for Gearbox Reducer -- 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 |
| Trademark | SKF |
| Origin | Jiangsu China |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Industrial Machinery | Gearbox Reducers, Conveyors, Pumps |
| Manufacturing | Production Line Integrators, Factory Upgrading Equipment |
| Automotive | Transmission Systems, Power Train Components |
| General Machinery | Compressors, Electric Motors |
Prevent Gearbox Failures with SKF 3306-A-2Z TN9-MT33 Double Row Angular Contact Ball Bearing
OEM manufacturers know the frustration of unexpected gearbox downtime—counterfeit bearings failing prematurely, inconsistent delivery delaying production schedules, and lack of technical support when selecting the right component. These issues aren’t just inconveniences; they directly impact your bottom line through lost productivity and maintenance costs.
Authentic SKF Bearings, Ready for Immediate Shipment
As an official SKF distributor, we ensure every SKF 3306-A-2Z TN9-MT33 double row angular contact ball bearing meets strict quality standards. Our large centralized warehouse maintains stock for fast emergency delivery, eliminating the 30–50% lead time delays common with multi-tier distribution. This bearing, designed for heavy-duty gearbox reducers, provides the reliability needed to keep your production lines running.
Engineered for Heavy-Duty Gearbox Performance
The SKF 3306-A-2Z TN9-MT33 thrives in high-load industrial environments. Its double row angular contact design handles both radial and axial loads, making it ideal for gearbox reducers where precision and durability are critical. Whether operating in continuous production settings or demanding manufacturing scenarios, this bearing delivers stable performance under varying speeds and load conditions.
Key Technical Features That Matter
Precision rating options (P0 to P6) allow customization based on your equipment’s accuracy requirements—higher precision grades reduce vibration and extend service life in sensitive applications. The steel, copper, or nylon cage options cater to different temperature and speed needs, with steel cages offering robustness for heavy loads and nylon cages reducing friction in high-speed operations. Lubrication flexibility (oil or grease) ensures compatibility with existing maintenance protocols, while the separated structure simplifies installation and replacement.
Why Choosing Genuine SKF Reduces Total Cost
Non-genuine bearings may seem cheaper upfront, but they often lead to hidden costs: premature failures causing unplanned downtime, incomplete traceability documents leading to customs delays, and quality disputes that risk your reputation with clients. Our 100% genuine SKF bearings come with full certification, ensuring compliance with export requirements and minimizing the risk of counterfeit-related issues. Over time, the reliability of authentic components lowers total operational costs by reducing maintenance and production interruptions.
Our Commitment to Your Success
With over 60 countries served and a SKF-certified technical team, we provide more than just products. Our full-process quality management, compliant with ISO 9001 and SKF global standards, includes pre-shipment inspection to ensure every bearing meets specifications. Dedicated account managers track your order from warehouse to delivery, offering real-time visibility. We support sample testing and small-batch trials, so you can verify performance before committing to large orders. Plus, our global door-to-door logistics ensure your bearings arrive when and where you need them.
Packaging & Shipping
- Original SKF packaging with carton and pallet for secure transport
- 现货 available for delivery within 3–7 business days
- Flexible shipping via DHL, FedEx, UPS, air, or sea freight
- Real-time logistics tracking provided for all orders
- Minimum order quantity of 1 piece, supporting emergency repairs and small-batch needs
Secure Your Gearbox Reliability Today
Don’t let bearing issues slow your production. The SKF 3306-A-2Z TN9-MT33 is in stock and ready to ship—send your order details now to minimize downtime and keep your gearbox reducers operating at peak efficiency.
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 to confirm authenticity.
Q: How do I confirm this bearing fits my gearbox reducer?
A: Provide your equipment model or working condition parameters (load, speed, temperature), and our SKF-certified technical team will verify compatibility at no cost.
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 starting from 1 piece, ideal for emergency maintenance or small-scale production needs.
Q: How long does shipping take?
A: In-stock bearings ship within 3–7 business days. We offer DHL, FedEx, UPS, air, and sea freight options to match your timeline.
Q: How can I verify the bearing’s authenticity?
A: Each bearing includes SKF’s original packaging with防伪 labels and laser markings. We also provide traceability certificates for cross-verification on 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