707 ACDGC/P4A
Miniature Super Precision Angular Contact Ball Bearings
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707 ACDGC/P4A Bearing Product Overview & Core Advantages
The 707 ACDGC/P4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This single bearing features a 25° contact angle and is supplied as part of a universally matchable (SU) set, allowing for precise preload adjustment when paired with an identical bearing. Its P4A tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and other high-precision machinery. The bearing is pre-lubricated for immediate use and is engineered to handle combined loads efficiently.
Model Code Deep Explanation
| Code Segment | Technical Meaning |
|---|---|
| 707 | Basic bearing series designation. |
| AC | Angular Contact design. |
| D | Moderate preload (Class C). |
| GC | Specific internal clearance and tolerance grouping. |
| P4A | High precision tolerance class, superior to ABEC 7. |
707 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction enable the bearing to support significant combined radial and axial loads simultaneously. The phenolic cage contributes to stable operation under high stresses.
- Superior High-Speed Performance: The lightweight phenolic cage, optimized internal geometry, and P4A precision allow for a high limiting speed of 170,000 rpm, making it an excellent high-speed bearing.
- Precision and Accuracy: Manufactured to P4A tolerance class with tight dimensional controls on the bore diameter, outside diameter, and width, ensuring minimal runout and vibration for demanding applications.
- Universal Matching: Designated as Universal Matchable (SU), this bearing can be paired with another identical bearing in a set to achieve a defined preload (Moderate / Class C), simplifying assembly and enhancing system rigidity.
707 ACDGC/P4A Bearing Typical Application Areas
The 707 ACDGC/P4A is ideally suited for high-performance applications where precision and speed are critical. Common uses include:
- Machine Tool Spindles
- High-Frequency Electric Spindles
- Precision Grinding Machines
- High-Speed Robotics and Automation
- Medical and Dental Handpieces
- Aerospace Instrumentation
