709 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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709 CE/HCP4A Bearing Product Overview & Core Advantages
The 709 CE/HCP4A is a high-precision angular contact ball bearing engineered for exceptional performance in demanding applications. As a single-row bearing, it is optimized to handle combined radial and axial loads simultaneously. Its defining features include a ceramic ball construction and a P4 (ABEC-7) tolerance class, ensuring superior running accuracy, reduced vibration, and extended service life. This bearing is preloaded and pre-lubricated, making it an ideal, ready-to-install solution for high-speed spindles and other precision machinery requiring maximum rigidity and rotational accuracy.
709 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 709 | Basic bearing series and size designation. |
| C | Designates a 15° contact angle, optimized for high-speed operation and axial load capacity. |
| E | Indicates an optimized internal design, often for higher speed and lower torque. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduce weight, friction, and heat generation. |
| P4 | Specifies the P4 tolerance class (ABEC-7), guaranteeing ultra-precise dimensions and runout for high-precision applications. |
| A | Denotes that the bearing is supplied with a specific preload for immediate high rigidity and accurate rotational performance. |
709 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, allowing for higher limiting speeds (180,000 rpm). It also provides superior resistance to wear and operates effectively at a wider temperature range (-30° to 110 °C).
- High-Precision & Rigidity: Manufactured to P4 tolerance and supplied with preload, this bearing delivers exceptional running accuracy and system stiffness, minimizing deflection under load.
- Phenolic Cage: The lightweight and robust phenolic cage ensures stable ball guidance and is well-suited for high-speed operation, contributing to the bearing's overall high-speed performance.
- Optimized for Combined Loads: The 15° contact angle is expertly chosen to provide an excellent balance, capable of handling significant radial and axial loads simultaneously.
709 CE/HCP4A Bearing Typical Application Areas
The 709 CE/HCP4A is designed for high-performance applications where speed, precision, and reliability are paramount. Key industries and equipment include:
- High-Frequency CNC Spindles for milling, grinding, and drilling
- Precision Machine Tools
- High-Speed Robotic Drives
- Medical and Dental Handpieces
- Aerospace Instrumentation and auxiliary systems
