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/Mt33 for Electric Motor with Rubber Seals
Double Row Angular Contact Ball Bearing 3307 a-2RS1 Tn9/Mt33 for Electric Motor with Rubber Seals
In Stock · Ready to Ship
<p>Ensure your electric motor runs with uncompromised precision and reliability using the <strong>Double Row Angular Contact Ball Bearing 3307 a-2RS1 Tn9/Mt33</strong>, designed to deliver exceptional radial and axial load handling for continuous operation. As an official SKF authorized distributor, we guarantee 100% genuine bearings with full traceability documentation, eliminating compliance hurdles and quality concerns in your supply chain.</p><ul><li>Rubber seals (2RS1) provide superior contamination resistance, extending service life in industrial environments</li><li>Tn9/Mt33 cage configuration ensures stable torque transmission and reduced vibration at high speeds</li><li>Manufactured to SKF global standards with bearing steel construction, maintaining consistent performance across production batches</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/Mt33 for Electric Motor with Rubber Seals -- 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 | Electric Motors, Machine Tools, Gearboxes |
| Automotive | Electric Vehicle Motors, Power Transmission Systems |
| Industrial Machinery | Conveyors, Pumps, Compressors |
| Renewable Energy | Wind Turbine Generators, Solar Power Equipment |
Stop Motor Downtime with Genuine SKF 3307 Angular Contact Ball Bearings
Many OEMs face unexpected production halts when electric motor bearings fail prematurely—often due to counterfeit products with poor material quality. These failures not only disrupt schedules but also create costly rework and warranty claims. Sourcing from unreliable channels complicates traceability, leading to customs delays and quality disputes that harm your supply chain efficiency.
Genuine SKF 3307 Bearings: In Stock and Traceable
Our Double Row Angular Contact Ball Bearing 3307 a-2RS1 Tn9/Mt33 solves these challenges with 100% genuine SKF components backed by full traceability documentation. As an official SKF distributor, we maintain a large centralized warehouse ensuring stable bulk supply, while our 24-hour quotation response keeps your production planning on track. The rubber seals provide effective protection against contaminants, making this bearing ideal for electric motor applications where reliability is critical.
Engineered for Electric Motor Performance
This Double Row Angular Contact Ball Bearing excels in high-speed electric motor environments, handling both radial and axial loads with precision. The angular contact design ensures optimal load distribution, while the rubber seals (2RS1) minimize lubricant leakage and prevent particle ingress—extending service life in dusty or humid industrial settings. Whether used in HVAC motors, industrial drives, or automotive powertrains, this bearing delivers consistent performance under continuous operation.
Technical Features That Matter
The SKF 3307 a-2RS1 Tn9/Mt33 incorporates key engineering details that directly impact motor efficiency. Its double row structure increases radial load capacity compared to single row designs, while the precision rating options (P0 to P6) allow customization for applications requiring tight tolerances. The cage material options—steel, copper, or nylon—accommodate different temperature ranges and speed requirements, ensuring compatibility with diverse motor designs. Proper lubrication with oil or grease, combined with the bearing steel construction, ensures resistance to wear even under cyclic loading conditions.
Why Genuine SKF Beats Counterfeit Alternatives
Choosing genuine SKF bearings over gray-market alternatives reduces total cost of ownership significantly. Counterfeit bearings often fail within 30-50% of the expected service life, leading to unplanned downtime and replacement costs. In contrast, our bearings comply with ISO 9001 and SKF global standards, undergoing rigorous quality checks to ensure batch consistency. The complete traceability documentation we provide eliminates customs clearance issues and liability risks, while our technical support team helps optimize installation and maintenance—avoiding common pitfalls that shorten bearing life.
Our Commitment to Your Production Success
With over 60 countries served and a SKF-certified technical team, we deliver more than just products. Our authorized distribution status guarantees every bearing can be traced back to SKF's manufacturing processes, and our four-step OEM cooperation process ensures transparency from quotation to delivery. We support sample testing and small-batch trials to verify performance, while dedicated account managers provide real-time progress updates. For emergency needs, our global door-to-door logistics network ensures fast delivery, minimizing production line idle time.
Packaging & Shipping
- Original SKF packaging with serial numbers and traceability labels
- Carton pallet packaging for secure transportation
- 3-7 business days delivery for in-stock items
- Flexible shipping via DHL, FedEx, UPS, air, or sea freight
- Real-time logistics tracking provided for all orders
- Minimum order quantity of 1 unit, supporting both maintenance and production needs
Secure Your Motor Bearings Today
Don’t let bearing issues disrupt your production schedule. Send us your model requirements, application parameters, and order volume to receive a formal quotation within 24 hours. Our team can also assist with technical选型 to ensure the SKF 3307 a-2RS1 Tn9/Mt33 is the right fit for your electric motor—helping you avoid costly mismatches and downtime.
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 certificates to confirm authenticity.
Q: How can I confirm this bearing fits my electric motor?
A: Provide your motor model, operating speed, and load conditions. Our SKF-certified technical team will verify compatibility and recommend the optimal configuration.
Q: What is the warranty policy?
A: All bearings are covered by SKF's standard manufacturer warranty. We provide full support for replacement or refund in case of manufacturing defects.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making us suitable for both emergency repairs and bulk production requirements.
Q: How long does shipping take?
A: In-stock bearings are shipped within 3-7 business days. We offer multiple logistics options to meet your delivery timeline needs.
Q: How can I verify the bearing's authenticity?
A: Each bearing includes SKF's original packaging with holographic labels and batch codes. 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