3209 A
Double Row Angular Contact Ball Bearings
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3209 A Bearing Product Overview & Core Advantages
The 3209 A is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This precision bearing excels at simultaneously handling combined loads, including significant radial loads and bidirectional axial loads. Its compact design, featuring a 45 mm bore and 85 mm outside diameter, offers a space-saving solution without compromising performance. Manufactured to P6 (ABEC-3) tolerance class, it ensures precise running accuracy and is pre-lubricated for immediate use, making it ideal for demanding industrial environments.
3209 A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| A | Optimized internal design with a 30° contact angle, providing enhanced axial load capacity and rigidity. |
| Open | No seals or shields, allowing for higher speed capability and suitability for centralized lubrication systems. |
3209 A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design and optimized internal geometry provide superior stiffness and enable the bearing to support substantial combined radial and axial loads from both directions. The distance from the side face to the load point (49 mm) contributes to a stable, moment-resistant setup.
- High-Speed Performance: The stainless steel cage ensures low friction and high strength, contributing to the bearing's impressive limiting speed of 7,500 rpm. The open design further facilitates efficient heat dissipation.
- Precision & Durability: Manufactured from chrome steel for both rings and balls, the bearing offers excellent wear resistance and long service life. Adherence to the P6 tolerance class guarantees precise and consistent operation.
- Wide Operating Range: Pre-lubricated and capable of operating within a temperature range of -30°C to 110°C, it is suitable for a variety of industrial conditions.
3209 A Bearing Typical Application Areas
This versatile double row angular contact ball bearing is ideally suited for:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Precision Gearboxes
- Material Handling Equipment
- Agricultural and Construction Machinery
