707 CE/PA9ADGA
Miniature Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
707 CE/PA9ADGA
Basic Information
System of measurement
Metric
Weight
0.014 kg
Tolerance class
PA9A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
7 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.004mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.572 mm
Ball quantity
8
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
702 lbf
Radial static load rating
286 lbf
Limiting speed
110 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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707 CE/PA9ADGA Bearing Product Overview & Core Advantages
The 707 CE/PA9ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 15° contact angle and is supplied as a universally matchable (SU) set of two bearings. This configuration allows for versatile mounting arrangements to achieve optimal preload and system rigidity. Manufactured to the stringent PA9A tolerance class, it delivers superior running accuracy, making it an ideal solution for high-speed and high-precision machinery.
707 CE/PA9ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| C | 15° nominal contact angle. |
| E | Optimized internal design for enhanced performance. |
| PA9A | High precision tolerance class, ensuring minimal dimensional runout and superior rotational accuracy. |
| DGA | Indicates a universally matchable (SU) pair of bearings, supplied lubricated and ready for installation. |
707 CE/PA9ADGA Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The PA9A tolerance class and universal matching (SU) capability ensure precise shaft positioning and high system rigidity when mounted in pairs. The phenolic cage provides stability and is suitable for high-speed operation.
- Combined Load Capacity: The 15° contact angle is engineered to efficiently handle significant axial loads in one direction in addition to radial loads, making it suitable for combined load applications.
- High-Speed Performance: The lightweight phenolic cage and optimized internal geometry contribute to a high limiting speed of 110,000 rpm, enabling reliable operation in demanding, fast-rotating environments.
- Ready-to-Install: The bearings are pre-lubricated, simplifying the installation process and ensuring immediate operational readiness.
707 CE/PA9ADGA Bearing Typical Application Areas
This bearing is ideally suited for precision applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Spindles
- Precision Grinding Machines
- Industrial Pumps and Compressors
- Robotic Drives and Actuators
