707 CE/HCPA9ADGA
Hybrid Ceramic Super Precision Bearings
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707 CE/HCPA9ADGA Bearing Product Overview & Core Advantages
The 707 CE/HCPA9ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing is designed to accommodate combined radial and axial loads simultaneously. Its construction with a ceramic ball and phenolic cage enables superior high-speed capabilities and thermal stability. Preloaded to Extra Light (Class A) and manufactured to an ultra-precise PA9A tolerance class, it delivers high running accuracy, rigidity, and reliability in compact assemblies.
707 CE/HCPA9ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| 707 CE | Basic bearing series and size designation. |
| HC | Indicates Hybrid Ceramic construction, featuring steel rings and ceramic balls for reduced friction and higher speed. |
| PA9A | Specifies the high-precision tolerance class, ensuring minimal dimensional runout and superior rotational accuracy. |
| DGA | Denotes a Universal Matchable (SU) bearing, supplied as one of a pair (2 bearings in a matched set) that can be arranged in any configuration (back-to-back, face-to-face, or tandem). |
707 CE/HCPA9ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This results in a much higher limiting speed (230,000 rpm) and extended service life compared to all-steel bearings.
- Precision & Rigidity: Manufactured to PA9A super-precision standards and preloaded to Extra Light (Class A), this bearing provides high rotational accuracy, minimal deflection, and excellent system rigidity.
- High-Speed Phenolic Cage: The lightweight phenolic cage is ideal for high-speed operation, offering excellent strength and guidance with minimal friction at extreme rotational velocities.
- Universal Matchability (SU): As a universal matchable bearing, it offers exceptional flexibility in spindle design. Two bearings can be paired in any mounting arrangement to optimize stiffness and load handling for the specific application.
- 15° Contact Angle: The contact angle is optimized to provide a balanced performance for both radial and axial load capacities.
707 CE/HCPA9ADGA Bearing Typical Application Areas
This high-performance bearing is ideally suited for applications where high speed, precision, and rigidity are critical. Typical uses include:
- High-Frequency Spindles for PCB drilling and milling
- Precision Machine Tool Spindles
- High-Speed Motors and Dental Handpieces
- Aerospace Instrumentation and Gyroscopes
- Semiconductor Manufacturing Equipment
