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 |
Gearboxes, Machine Tools, CNC Machines, Spindles |
Stop Gearbox Downtime — Double Row Angular Contact Ball Bearing 3309-D-Ma for Machine Tools
Equipment managers know the frustration: gearbox bearings failing prematurely due to misalignment or inadequate load capacity, halting production lines and creating costly delays. Sourcing replacement bearings often means juggling multiple suppliers, each with different lead times and quality standards, while urgent maintenance waits. For machine tool operators, the right bearing isn’t just a part—it’s the difference between on-time delivery and missed deadlines.
Genuine Double Row Angular Contact Ball Bearings, In Stock and Ready to Ship
Our Double Row Angular Contact Ball Bearing 3309-D-Ma solves these challenges with precision-engineered performance for gearbox and machine tool applications. As an official SKF distributor, we maintain large centralized inventory, ensuring this steel cage bearing is available for immediate dispatch. Whether you need a single unit for emergency repair or bulk orders for scheduled maintenance, our one-stop procurement process eliminates the hassle of coordinating with multiple suppliers.
Where This Angular Contact Bearing Performs
Designed for gearboxes and machine tools, this double row angular contact ball bearing excels in high-speed rotational environments where both radial and axial loads are present. Its separated structure allows for easy mounting and dismounting, while the angular contact design provides the necessary rigidity to maintain precision in cutting operations and gear transmission systems. In machine tool spindles and gearbox assemblies, consistent performance directly impacts product quality and production efficiency.
Technical Details That Define Performance
The 3309-D-Ma bearing’s performance is rooted in critical technical features. Its double row design increases radial load capacity compared to single row alternatives, making it suitable for heavy-duty machine tool applications. Available precision ratings from P0 to P2 ensure compatibility with everything from general industrial use to high-precision machining centers, where minimal runout is essential. The steel cage option enhances durability at higher operating temperatures, ensuring stable lubrication distribution and reducing maintenance intervals. With bearing steel construction, this component delivers the wear resistance needed for continuous operation in manufacturing environments.
The True Cost of Substandard Gearbox Bearings
Choosing non-genuine bearings for machine tool gearboxes often leads to hidden costs: premature failures requiring unplanned downtime, increased energy consumption due to friction losses, and potential damage to adjacent components like gears and shafts. Our SKF 3309-D-Ma bearings adhere to ISO 9001 quality standards, verified through our unified inspection system. While counterfeit bearings may offer lower upfront prices, the total cost of ownership—including replacement labor, production losses, and secondary equipment damage—typically makes genuine bearings the more economical choice over time.
Why Machine Tool Operators Trust Our Bearing Solutions
As an official SKF distributor with dual-brand authorization (SKF & Timken), we provide complete traceability for every bearing, with documentation linking each unit to the original manufacturer. Our cross-brand technical team, with expertise in both European precision and American heavy-duty applications, offers free选型 support to ensure you get the right bearing for your specific gearbox or machine tool model. With 1,200+ clients across 55+ countries, we’ve built a reputation for reliable supply—even for large-scale projects. Every bearing undergoes pre-shipment inspection, and we stand behind our products with manufacturer-backed warranty support.
Packaging & Shipping
- Original SKF packaging with product identification and batch traceability
- Carton pallet packaging for secure transportation and storage
- Global logistics options including DHL, FedEx, UPS, air, and sea freight
- Real-time shipment tracking provided upon dispatch
- 1 piece minimum order quantity, supporting both emergency repairs and planned maintenance
Get Your 3309-D-Ma Bearing Shipped Today
Don’t let gearbox downtime impact your production schedule. Send us your bearing requirements—including the 3309-D-Ma model, application details, and quantity—and our team will provide a unified quotation within one working day. With our large inventory, most orders ship within 3-7 business days, getting your machine tools back to work faster.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with complete traceability documentation linking to the original manufacturer, and we can provide authorization certificates upon request.
Q: How do I confirm if the 3309-D-Ma is compatible with my gearbox?
A: Provide your gearbox model, shaft diameter, and operating conditions (load, speed, temperature), and our technical team will verify compatibility and provide选型 recommendations at no cost.
Q: What is the warranty policy for this bearing?
A: We offer the full manufacturer warranty coverage against manufacturing defects. If a bearing fails due to material or production issues, we provide replacement or refund per SKF’s standard warranty terms.
Q: What is the minimum order quantity for the 3309-D-Ma?
A: We accept orders for 1 piece, making it easy to source emergency replacement bearings for critical machine tool repairs.
Q: How long does shipping take for this bearing?
A: In-stock bearings typically ship within 3-7 business days. We offer DHL, FedEx, UPS, air freight, and sea freight options to match your delivery timeline requirements.
Q: How can I verify the authenticity of the bearing upon receipt?
A: Authentic SKF bearings include unique packaging with holographic labels, laser-etched part numbers, and batch codes. We provide full traceability documents, and you can cross-verify details using SKF’s official authentication tools.
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