Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Boost your machine tool's precision and reduce downtime with the <strong>Double Row Angular Contact Ball Bearing 3310-A TN9 Nylon Cage</strong>—an SKF-engineered solution that delivers consistent performance for critical industrial applications. This bearing’s nylon cage (TN9) minimizes friction and heat buildup, ensuring smoother operation and longer service life compared to traditional steel cages, while its double row design handles combined radial and axial loads with exceptional stability.</p><ul><li>SKF-certified quality guarantees full traceability, eliminating customs clearance delays and quality disputes</li><li>Precision ratings from P0 to P6 meet strict OEM standards, supporting high-speed machining with minimal vibration</li><li>Direct authorized distribution ensures reliable bulk supply, keeping your production line running without unexpected interruptions</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 |
| Specification | As Your Request |
| Trademark | SKF |
| Origin | Jiangsu China |
| Production Capacity | 1000000 |
| Industry | Typical Equipment |
|---|---|
| Machine Tool Manufacturing | CNC Lathes, Milling Machines, Grinding Machines, Spindle Units |
| Industrial Machinery | Rotary Tables, Precision Gearboxes, Servo Motors |
| Automotive Manufacturing | Assembly Line Equipment, Robotic Arms, Precision Machining Centers |
| Aerospace | Component Machining Tools, Test Equipment |
Machine tool operators know the frustration of unexpected spindle failure—hours of production lost, deadlines missed, and costly repairs eating into profits. Many face the dilemma of unreliable gray-market bearings that lack traceability, or multi-tier distributors with lead times stretching 30–50% beyond production schedules. When precision matters most, choosing the wrong bearing for high-speed machine tool applications can turn a small investment into major losses.
Our SKF 3310-A TN9 Double Row Angular Contact Ball Bearing is engineered to solve these pain points. As an official SKF distributor, we guarantee 100% genuine products with full traceability documentation, eliminating customs clearance obstacles and quality disputes. With a large centralized warehouse, we maintain ready stock for machine tool OEMs and maintenance teams, ensuring your production line stays operational. The nylon cage design delivers exceptional stability in high-speed spindle applications, making it ideal for precision CNC machines and rotary tables.
This Double Row Angular Contact Ball Bearing excels in conditions where both radial and axial loads are present, such as machine tool spindles operating at high rotational speeds. The angular contact design allows for precise preload adjustment, critical for maintaining positional accuracy in milling and grinding operations. Whether your equipment runs continuously in a production facility or requires intermittent high-precision tasks, this bearing provides the rigidity and durability needed to minimize vibration and extend tool life.
The SKF 3310-A TN9 Bearing combines advanced engineering with practical design to meet the demands of modern machine tools. Its double row construction increases radial load capacity compared to single row bearings, while the nylon cage reduces friction and heat generation—essential for sustained high-speed operation. Available precision ratings from P0 to P2 ensure compatibility with everything from general machining to ultra-precision applications. The separated structure allows for easy mounting and dismounting, simplifying maintenance and reducing downtime during repairs. With bearing steel construction, it delivers consistent performance even under the thermal stresses of continuous operation.
Counterfeit bearings may offer lower upfront costs, but they often fail prematurely under the rigors of machine tool operation. A single spindle failure due to a fake bearing can cost thousands in lost production, repair parts, and labor—not to mention the risk of damage to expensive machinery. Our SKF bearings, compliant with ISO 9001 and SKF global standards, undergo rigorous quality testing to ensure batch consistency. The investment in genuine components reduces unplanned downtime, extends maintenance intervals, and ultimately lowers your total cost of ownership by delivering predictable performance over the long term.
As an official SKF distributor, we provide more than just products—we deliver peace of mind. Our certification ensures every bearing can be traced back to SKF's manufacturing process, supported by complete documentation for export compliance. Our SKF-certified technical team offers free model selection assistance based on your specific working conditions, helping you avoid costly选型 mistakes. With a global logistics network, we serve 60+ countries, offering door-to-door delivery to keep your supply chain on track. We support small-batch trial orders and long-term supply agreements, with dedicated account managers tracking every order from warehouse to your facility. When you partner with us, you gain access to SKF's 100+ years of bearing expertise, backed by responsive after-sales support.
Don’t let bearing issues disrupt your machine tool production. Send us your bearing model list, application parameters, and required quantity, and we’ll provide a formal quotation within 24 hours. With our ready stock and fast delivery, you can minimize downtime and get back to manufacturing with confidence.
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 ensure authenticity.
Q: How can I confirm if the 3310-A TN9 is suitable for my machine tool?
A: Our SKF-certified technical team can help verify compatibility. Provide your machine model, spindle speed, load conditions, and operating temperature, and we’ll confirm the optimal bearing selection.
Q: What is the warranty policy for this bearing?
A: We offer the standard SKF manufacturer warranty, covering manufacturing defects. In the rare event of a quality issue, we provide hassle-free returns and replacements.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, making us ideal for emergency repairs or small-batch requirements.
Q: How long does shipping take to [my country]?
A: In-stock bearings ship within 3-7 business days. We offer multiple logistics options—contact us with your location for a detailed delivery timeline.
Q: How can I verify the authenticity of the bearing upon receipt?
A: Each bearing includes SKF's original packaging with security features, laser-etched part numbers, and traceability certificates. You can also cross-verify the serial number through SKF's official channels.
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.