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 3307 A-2RS1 Tn9/C3 for Motor Gearboxes with Sealed C3 Clearance
Double Row Angular Contact Ball Bearing 3307 A-2RS1 Tn9/C3 for Motor Gearboxes with Sealed C3 Clearance
In Stock · Ready to Ship
<p>Ensure motor gearbox reliability with the <strong>Double Row Angular Contact Ball Bearing 3307 A-2RS1 Tn9/C3</strong>, engineered to minimize downtime in high-torque applications. Its sealed C3 clearance design maintains consistent lubrication and prevents contamination, directly addressing the need for stable performance in critical industrial workflows.</p><ul><li>SKF Tn9/C3 specification ensures precise radial and axial load handling, ideal for gearbox shafts under variable stress</li><li>Double row angular contact geometry eliminates the need for paired single bearings, simplifying assembly and reducing maintenance complexity</li><li>Steel cage construction provides durability at operating temperatures up to 120°C, a critical detail for continuous-duty motor 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 3307 A-2RS1 Tn9/C3 for Motor Gearboxes with Sealed C3 Clearance -- 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 |
| Specification | As Your Request |
| Trademark | SKF |
| Origin | Jiangsu China |
| Production Capacity | 1000000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Manufacturing | Motor Gearboxes, Industrial Gear Units, Conveyor Systems |
| Automotive | Transmission Systems, Electric Vehicle Motors |
| General Machinery | Compressors, Pumps, Fans |
Stop Gearbox Failures — Genuine SKF 3307 A-2RS1 Tn9/C3 Bearings Delivered Fast
OEM manufacturers know the cost of unexpected downtime: a single gearbox failure can halt production lines, delay orders, and erase profit margins. Counterfeit bearings often fail prematurely due to substandard materials, while multi-tier distribution channels stretch delivery times by 30–50%, leaving maintenance teams waiting for critical replacements.
SKF 3307 A-2RS1 Tn9/C3: Sealed Performance You Can Trace
Our Double Row Angular Contact Ball Bearing 3307 A-2RS1 Tn9/C3 solves these challenges with 100% genuine SKF quality and direct authorized supply. The sealed design (2RS1) prevents contamination in motor gearboxes, while C3 clearance accommodates thermal expansion during high-speed operation. As an official SKF distributor, we maintain a large centralized warehouse, ensuring this bearing is ready for immediate dispatch to keep your production on schedule.
Engineered for Motor Gearbox Demands
This Angular Contact Ball Bearing 3307 is specifically designed to handle combined radial and axial loads in motor gearboxes, where precision and reliability are non-negotiable. Operating under continuous rotational stress, it maintains stability across varying speeds and torque conditions, making it ideal for applications requiring consistent performance in industrial machinery.
Technical Details That Matter
The double row angular contact design increases load-carrying capacity compared to single row alternatives, while the Tn9 cage configuration ensures optimal ball guidance at high speeds. Sealed with 2RS1 rubber seals, it retains lubrication and excludes contaminants—critical for extending service life in dusty or humid environments. Precision ratings from P0 to P6 allow customization to match your equipment’s accuracy requirements, ensuring minimal vibration and noise during operation.
Why Genuine SKF Beats Counterfeit Alternatives
Non-genuine bearings may cost less upfront, but they often lead to hidden expenses: early failure, unplanned downtime, and potential damage to adjacent gearbox components. SKF’s rigorous manufacturing standards, compliant with ISO 9001, ensure each 3307 A-2RS1 Tn9/C3 bearing meets global performance benchmarks. Our full traceability documentation eliminates customs clearance issues and provides liability protection—a critical advantage for export-oriented manufacturers.
Why Buyers Trust Dunyu Bearings
As an official SKF distributor, we provide complete traceability for every bearing, with certification linking it to SKF’s global supply chain. Our ISO 9001-compliant quality management includes pre-shipment inspections to verify dimensions, material integrity, and performance. With a SKF-certified technical team, we offer free model selection support based on your gearbox specifications, ensuring optimal bearing performance. Serving 60+ countries, we deliver door-to-door via trusted logistics partners, with dedicated account managers tracking every order from warehouse to delivery.
Packaging & Shipping
- Original SKF packaging with product certification and traceability documents
- Carton pallet packaging for secure transport
- Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
- Real-time shipment tracking provided upon dispatch
- Flexible order quantities, including small-batch and emergency orders
Get Your Gearbox Bearings Back in Production
Don’t let bearing delays or failures disrupt your operations. Send us your order details today—whether you need a single SKF 3307 A-2RS1 Tn9/C3 for emergency repair or bulk quantities for OEM production. Our team will confirm availability and issue a formal quotation within 24 hours, helping you minimize downtime and maintain production schedules.
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 linking it to SKF’s global supply chain, and we can provide brand authorization certificates upon request.
Q: How do I confirm if this bearing fits my motor gearbox?
A: Provide your gearbox model, operating speed, load conditions, and shaft dimensions. Our SKF-certified technical team will verify compatibility and recommend the optimal bearing configuration.
Q: What is your warranty policy?
A: We adhere to SKF’s global warranty standards, covering manufacturing defects. If a bearing fails due to material or production issues, we provide a full replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, supporting both emergency maintenance and large-scale OEM production requirements.
Q: How quickly can you ship this bearing?
A: Stock items are dispatched within 3–7 business days. For urgent requirements, contact our team for expedited shipping options.
Q: How can I verify the authenticity of the bearing?
A: Each bearing includes SKF’s original packaging with holographic labels and serial numbers. We also provide traceability documents that can be cross-verified 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.
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