Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
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Full Traceability
ISO 9001 Certified
SKF Authorized
Angular Contact Bearing
Double Row Angular Contact Ball Bearing 3307 A-2Z/C3 MT33 for Gearbox Applications
Double Row Angular Contact Ball Bearing 3307 A-2Z/C3 MT33 for Gearbox Applications
In Stock · Ready to Ship
<p>Ensure gearbox reliability with the <strong>Double Row Angular Contact Ball Bearing 3307 A-2Z/C3 MT33</strong>, engineered to deliver consistent performance in high-torque industrial applications. As an official SKF distributor, we guarantee full traceability documentation to streamline your supply chain compliance.</p><ul><li>2Z steel shields provide superior contamination resistance, extending service intervals in dusty gearbox environments</li><li>C3 clearance rating accommodates thermal expansion during continuous operation, reducing premature failure risks</li><li>SKF-certified MT33 grease formulation ensures optimal lubrication retention under varying temperature conditions</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-2Z/C3 MT33 for Gearbox Applications -- 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 |
|---|---|
| Automotive | Transmission Gearboxes, Differential Assemblies, Axle Systems |
| General Machinery | Industrial Gearboxes, Conveyor Drives, Machine Tool Spindles |
| Rail Transit | Train Gearboxes, Locomotive Transmission Systems |
| Manufacturing | Production Line Reducers, Heavy-Duty Conveyors, Compressor Drives |
Stop Gearbox Failures — Genuine SKF 3307 A-2Z/C3 MT33 Double Row Angular Contact Ball Bearing In Stock
Gearbox downtime hits hard—unplanned stoppages cost manufacturers $22,000 per hour on average. Many face this reality when sourcing bearings through unclear channels: counterfeit products fail prematurely, while multi-tier distributors delay deliveries by 30–50%, derailing production schedules. For OEMs building gearboxes, the risk of using non-traceable components isn’t just financial—it threatens compliance with export documentation requirements and quality liability.
Genuine SKF 3307 A-2Z/C3 Bearings, Delivered When You Need Them
As an official SKF authorized distributor, we eliminate these pain points for gearbox manufacturers. The Double Row Angular Contact Ball Bearing 3307 A-2Z/C3 MT33 is stocked in our centralized warehouse, ready for immediate dispatch. Every unit comes with full traceability documentation, ensuring it meets ISO 9001 and SKF global standards—critical for avoiding customs clearance issues and quality disputes. Our direct supply chain cuts lead times by half compared to traditional distribution networks, keeping your production lines running on schedule.
Engineered for High-Performance Gearbox Applications
This SKF double row angular contact ball bearing excels in gearboxes operating under combined radial and axial loads. Its angular contact design handles thrust forces common in helical gear systems, while the double row configuration provides higher rigidity and load capacity than single row alternatives. The 3307 A-2Z/C3 MT33 variant, with its steel cage and Z-type seals, offers reliable performance in temperatures up to 120°C, making it ideal for industrial gearboxes in continuous operation.
Technical Details That Maximize Gearbox Reliability
The performance of your gearbox depends on critical bearing specifications. The C3 clearance class in this SKF 3307 angular contact bearing allows for thermal expansion during high-speed operation, reducing friction and preventing premature failure. Its precision ratings (available from P0 to P6) ensure minimal radial runout, which directly translates to smoother gear meshing and lower noise levels. The steel cage option provides superior strength for heavy-duty applications, while the oil-grease lubrication compatibility offers flexibility in maintenance routines. For gearboxes requiring consistent torque transmission, these technical attributes collectively extend service life by up to 40% compared to non-specified bearings.
Why Authenticity Matters More Than Price
Choosing gray-market bearings to save on upfront costs often backfires. Counterfeit SKF 3307 angular contact bearings typically fail within 30% of the expected service life, leading to secondary damage to gears and shafts—repair costs that dwarf initial savings. Our genuine SKF bearings come with full manufacturer certification, ensuring they meet the dynamic load ratings and material quality required for gearbox applications. For OEMs, this isn’t just about reliability; it’s about protecting your brand reputation and meeting the strict compliance standards of export markets, where traceability documentation is non-negotiable.
Your Trusted Partner for SKF Bearings
We’ve earned the trust of industrial equipment OEMs in 60+ countries by delivering on our core promises: 100% genuine SKF products with complete traceability, a large centralized warehouse for immediate availability, and a SKF-certified technical team to support your选型 and installation needs. Our four-step OEM cooperation process ensures transparency—from 24-hour quotation with authorization documents to dedicated account management tracking every order. We handle door-to-door logistics globally, and our customized OEM schemes adapt to your production schedules, whether you need small-batch trials or bulk supply.
Packaging & Shipping
- Original SKF packaging with individual boxes, laser-etched model labels, and anti-counterfeit security features
- Stock items dispatched within 3–7 business days
- Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time tracking numbers provided upon shipment
- Minimum order quantity of 1 unit, supporting emergency maintenance and small-batch procurement
Secure Your Gearbox Performance Today
Every day your gearbox production line waits for reliable bearings is a day of lost revenue. Our SKF 3307 A-2Z/C3 MT33 double row angular contact ball bearings are in stock and ready to ship—no middlemen, no delays, no compromises on quality. Send us your order details now to keep your production on track.
Frequently Asked Questions
Q: Are these bearings 100% genuine SKF products?
A: Yes, as an official SKF authorized distributor, every bearing is sourced directly from SKF and comes with full traceability documentation and brand authorization certificates.
Q: How can I confirm this bearing fits my gearbox?
A: Provide your gearbox model, operating speed, and load conditions. Our SKF-certified technical team will verify compatibility and provide选型 recommendations at no cost.
Q: What is the warranty policy?
A: All SKF bearings are covered by the manufacturer’s warranty against manufacturing defects. We provide full after-sales support for warranty claims and replacements.
Q: What is the minimum order quantity?
A: We accept orders starting from 1 unit, making us ideal for both emergency repairs and small-batch production runs.
Q: How long does shipping take to [my country]?
A: Stock items ship within 3–7 business days. Transit times vary by location: typically 3–5 days for Europe/North America, 5–7 days for Southeast Asia, and 7–10 days for the Middle East.
Q: How can I verify the authenticity of the bearing upon receipt?
A: Check for the SKF laser-etched logo on the outer ring, verify the anti-counterfeit label with the SKF官网, and review the traceability document we provide, which links the bearing to its production batch.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity
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