709 CE/PA9ADT
Miniature Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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709 CE/PA9ADT Bearing Product Overview & Core Advantages
The 709 CE/PA9ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. This duplex tandem (DT) arrangement bearing set is preloaded and manufactured to PA9A tolerance class, ensuring superior running accuracy and minimal vibration. Its primary advantage lies in its ability to handle significant axial loads in one direction with high rigidity, making it an ideal choice for high-speed spindles and precision machinery where uncompromising performance is critical.
709 CE/PA9ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Contact angle of 15°, optimized for high axial load capacity |
| PA9A | High precision tolerance class with enhanced dimensional accuracy |
| DT | Duplex Tandem arrangement for increased axial stiffness and load capacity in one direction |
709 CE/PA9ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The duplex tandem arrangement and 15° contact angle provide exceptional stiffness and superior resistance to axial loads, ensuring stable operation under demanding conditions.
- Precision Performance: Manufactured to PA9A tolerance class with precise bore and outside diameter tolerances, this bearing delivers exceptional running accuracy and minimal vibration for high-precision applications.
- High-Speed Capability: The phenolic resin cage and optimized internal design contribute to a high limiting speed of 95,000 rpm, making it suitable for high-speed spindle applications.
- Superior Material Construction: Made from chrome steel for both rings and balls, ensuring high durability, wear resistance, and long service life in precision machinery.
709 CE/PA9ADT Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for applications requiring exceptional accuracy and high-speed performance, including:
- Machine Tool Spindles
- High-Speed Machining Centers
- Precision Grinding Spindles
- Medical Equipment
- Semiconductor Manufacturing Equipment
- Robotic Arm Joints
