3305 ATN9
Double Row Angular Contact Ball Bearings
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3305 ATN9 Bearing Product Overview & Core Advantages
The 3305 ATN9 is a double row angular contact ball bearing designed for applications demanding high rigidity and precision. This metric bearing excels at simultaneously handling combined radial and axial loads from both directions, making it an ideal solution for compact, high-performance assemblies. Its P6 (ABEC-3) tolerance class ensures consistent running accuracy, while the optimized internal geometry contributes to smooth operation and long service life in demanding industrial environments.
3305 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Benefit |
|---|---|---|
| A | 30° Contact Angle | Optimized for carrying significant axial loads in addition to radial loads. |
| TN9 | Nylon Cage, Glass Fiber Reinforced | Enables quiet operation, low friction, and is suitable for high-speed applications. |
3305 ATN9 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball complement and robust construction provide exceptional stiffness, enabling the bearing to support substantial combined loads with minimal deflection.
- Optimized for High Speeds: The lightweight TN9 nylon cage reduces centrifugal forces, contributing to a high limiting speed of 11,000 rpm. The open design and pre-lubrication facilitate efficient lubrication flow for sustained high-speed operation.
- Precision & Reliability: Manufactured to P6 tolerance class, this bearing guarantees precise running accuracy and consistent performance, which is critical in precision machinery.
- Material Integrity: Constructed from chrome steel for both rings and balls, ensuring high load ratings and durability across a wide temperature range from -30°C to 110°C.
3305 ATN9 Bearing Typical Application Areas
The 3305 ATN9 is engineered for high-performance applications where space is constrained and reliability is paramount. Key industries and equipment include:
- Machine Tool Spindles
- Precision Gearboxes
- Industrial Pumps and Compressors
- Material Handling Systems
- Agricultural Machinery
