706 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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706 CE/HCP4A Bearing Product Overview & Core Advantages
The 706 CE/HCP4A is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. As a single-row bearing, it is optimized to handle combined loads, accommodating significant radial loads and thrust loads in one direction. Its key advantages include superior high-speed capabilities enabled by a phenolic cage and ceramic balls, and the availability of preload for enhanced system rigidity and rotational accuracy. Manufactured to the stringent P4 (ABEC-7) tolerance class, this bearing is an ideal solution for high-reliability, high-precision machinery.
Model Code Breakdown
| Model Segment | Technical Meaning |
|---|---|
| 706 | Basic bearing series and size designation. |
| C | Specifies a 15° contact angle, optimized for high-speed applications. |
| E | Indicates optimized internal geometry and enhanced design for improved performance. |
| HC | Signifies the use of hybrid ceramic balls (silicon nitride), which reduce weight and friction. |
| P4 | Denotes the P4 tolerance class (equivalent to ABEC-7), ensuring ultra-precision. |
| A | Indicates that the bearing is supplied with a specific preload for immediate high-rigidity operation. |
706 CE/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends service life, especially in high-speed applications.
Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent dimensional stability and guidance at very high rotational speeds, contributing to the bearing's limiting speed of 260,000 rpm.
Precision & Rigidity: The 15° contact angle and availability of preload provide high running accuracy and system stiffness, minimizing deflection under load.
Superior Load Capacity: Despite its compact bearing dimensions (6mm bore, 17mm OD, 6mm width), it offers a dynamic load rating of 351 lbf, making it capable of handling demanding combined loads.
706 CE/HCP4A Bearing Typical Application Areas
The 706 CE/HCP4A is engineered for the most demanding high-speed and high-precision systems, including:
- High-Frequency Spindles for PCB drilling and precision machining
- Turbochargers and auxiliary high-speed rotors
- Precision Instrumentation and laboratory equipment
- Dental Handpieces and medical tools
- Aerospace Actuators and guidance systems
