Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
<p>Ensure motor and reducer reliability with the <strong>Double Row Angular Contact Ball Bearing 3309A-2RSH/MT33</strong> – SKF's precision-engineered solution for consistent performance in industrial power transmission systems. This rubber-sealed bearing minimizes downtime by combining radial and axial load capacity, maintaining tight tolerances even under fluctuating speeds common in motor applications.</p><ul><li>SKF-certified MT33 grease formulation optimizes lubrication retention, reducing maintenance intervals for busy production lines</li><li>Double row design eliminates the need for paired single bearings, simplifying installation while enhancing rigidity</li><li>Full traceability documentation ensures compliance with export quality standards, streamlining your supply chain validation</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 |
|---|---|
| Manufacturing | Electric Motors, Reducers, Gearboxes, Machine Tools |
| Automotive | Transmission Systems, Engine Components, Power Steering |
| Industrial Machinery | Conveyors, Pumps, Fans, Compressors |
OEM manufacturers know the cost of unexpected motor failure: production lines halt, maintenance crews scramble, and deadlines slip. Counterfeit bearings often fail within months, leaving you with incomplete traceability documents and customs clearance delays. Multi-tier distributors stretch lead times by 30-50%, making it impossible to align with tight production schedules.
As an official authorized SKF distributor, we provide the genuine Double Row Angular Contact Ball Bearing 3309A-2RSH/MT33 with full traceability. Our large centralized warehouse ensures stock availability for immediate dispatch, eliminating the delays of traditional distribution channels. This rubber sealed bearing is specifically engineered for motor and reducer applications, delivering reliable performance in industrial environments.
The SKF 3309A-2RSH/MT33 excels in high-speed rotating equipment where radial and axial loads combine. Its double row angular contact design handles combined loads efficiently, while the rubber seals (2RSH) provide effective protection against contaminants in dusty or humid industrial settings. Whether in conveyor motors, gearbox reducers, or machine tool spindles, this bearing maintains stable operation under continuous duty cycles.
Crafted from high-grade bearing steel, the 3309A-2RSH/MT33 offers exceptional durability. Its precision rating options (P0 to P6) allow customization for applications requiring tight tolerance control, reducing vibration and noise in high-precision machinery. The cage options—steel, copper, or nylon—cater to different speed and temperature requirements: steel cages for high load capacity, nylon cages for reduced friction at moderate speeds. Lubricated with high-quality grease, this bearing minimizes maintenance needs while supporting consistent performance across operating temperatures.
Choosing authentic SKF 3309A-2RSH Bearings over gray-market alternatives reduces long-term costs significantly. Counterfeit bearings often fail prematurely, leading to unplanned downtime, replacement parts, and labor expenses that far exceed initial savings. Our ISO 9001 compliant quality management ensures each bearing meets SKF global standards, backed by complete traceability documentation to avoid customs issues and liability disputes. The rubber sealed design extends service intervals by preventing lubricant contamination, further lowering maintenance costs.
With over 60 countries served, our OEM clients rely on four core strengths: official SKF authorization ensures 100% genuine products with full traceability; a SKF-certified technical team provides application-specific guidance, from model selection to failure analysis; centralized warehousing enables bulk supply stability and emergency delivery within 3-7 business days; and customized OEM schemes align with your production scheduling needs. Every order includes dedicated account management, offering real-time visibility from warehousing to delivery.
Don’t let bearing delays or failures disrupt your production. Send us your order details—bearing model, quantity, and application parameters—and receive a formal quotation within 24 hours, including brand authorization and traceability certificates. Our inventory is ready to ship, so you can minimize downtime and keep your equipment running.
Q: Are these genuine SKF bearings?
A: Yes, we are an official authorized SKF distributor. Every bearing comes with complete traceability documentation and brand certification to verify authenticity.
Q: How do I confirm if this bearing fits my motor or reducer?
A: Provide your equipment model or operating parameters (load, speed, temperature), and our SKF-certified technical team will verify compatibility at no cost.
Q: What is your warranty policy?
A: We adhere to SKF’s official warranty standards, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 piece, supporting both emergency maintenance and bulk production needs.
Q: How long does shipping take?
A: In-stock items ship within 3-7 business days via your preferred logistics (DHL, FedEx, UPS, sea, or air freight).
Q: How can I verify the bearing’s authenticity?
A: Check the packaging for SKF’s holographicé˜²ä¼ªæ ‡ç¾, laser-etched model number, and use SKF’s official verification tools. We provide full traceability documents with each order.
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.