3308 DTN9
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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3308 DTN9 Bearing Product Overview & Core Advantages
The 3308 DTN9 is a double row angular contact ball bearing engineered for applications requiring high precision and reliability. This metric bearing features an open design and is pre-lubricated, enabling it to accommodate combined loads—significant radial loads and bidirectional axial loads simultaneously. Its double row construction provides high rigidity and stable operation, making it ideal for high-speed applications. Manufactured to P6 (ABEC-3) tolerance class, it ensures precise running accuracy and is suitable for demanding industrial environments.
3308 DTN9 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| D | Double row angular contact ball bearing design |
| TN9 | Nylon cage, glass fiber reinforced, suitable for high-speed operation |
3308 DTN9 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and optimized contact angle provide exceptional stiffness and enable the bearing to handle substantial combined radial and axial loads in both directions.
- High-Speed Performance: The lightweight TN9 nylon cage reduces centrifugal forces, contributing to a high limiting speed of 7,000 rpm. The pre-lubrication ensures consistent performance at these elevated speeds.
- Precision & Durability: Manufactured from chrome steel for both rings and balls, and built to P6 tolerance, this bearing offers high running accuracy and long service life.
- Wide Temperature Range: Operates effectively within a temperature range of -30°C to 110°C, ensuring reliability in various operating conditions.
3308 DTN9 Bearing Typical Application Areas
The 3308 DTN9 is ideally suited for high-performance machinery and systems, including:
- Machine Tool Spindles
- Industrial Pumps and Compressors
- Precision Gearboxes
- Material Handling Equipment
- Agricultural Machinery
