707 CE/HCP4AH
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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707 CE/HCP4AH Bearing Product Overview & Core Advantages
The 707 CE/HCP4AH is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and superior speed performance. Positioned in the P4A tolerance class, it delivers exceptional dimensional accuracy and running precision. A key advantage is its ceramic ball construction, which significantly reduces centrifugal forces, enabling higher limiting speeds and operation in demanding thermal environments. This bearing is preloaded and designed for universal matching, allowing two bearings to be mounted in a tandem arrangement to handle substantial axial loads in one direction while offering high rigidity.
707 CE/HCP4AH Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 707 | Basic bearing series designation, indicating the size and internal geometry. |
| C | Specifies a 15° contact angle, optimized for high-speed applications with combined loads. |
| E | Indicates an optimized internal design for enhanced performance and load capacity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), offering reduced weight, lower friction, and higher speed capability. |
| P4A | Denotes an ABEC 7 / ISO P4A tolerance class, ensuring extremely tight dimensional and running accuracy. |
707 CE/HCP4AH Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls results in lower operating temperatures, extended service life, and the ability to run at the high limiting speed of 230,000 rpm. This is ideal for high-speed spindles.
Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent guidance for the ceramic balls, contributing to smooth operation and high rotational accuracy at extreme speeds.
Preload & Universal Matching: Supplied with a light preload, this bearing offers high system rigidity and precise rotational performance. Its universal matching design allows two bearings to be paired in a duplex set (e.g., DB or DF) to handle higher combined radial and axial loads.
Precision Ground Races: Manufactured to P4A tolerance, the bearing ensures minimal runout and vibration, which is critical for applications requiring the highest levels of precision.
707 CE/HCP4AH Bearing Typical Application Areas
The 707 CE/HCP4AH is specifically designed for the most demanding high-precision and high-speed machinery, including:
- High-Frequency CNC Spindles for milling, grinding, and drilling
- Precision Machine Tool Main Shafts
- High-Speed Robotic Drives and actuators
- Turbocharger Shafts and other high-RPM automotive systems
- Advanced Dental and Medical Handpieces
