719/8 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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719/8 CE/HCP4A Bearing Product Overview & Core Advantages
The 719/8 CE/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered as a single bearing with preload capability, it delivers superior rotational accuracy and system rigidity. Its defining feature is the use of ceramic balls, which significantly reduce centrifugal forces, lower operating temperatures, and enable higher limiting speeds compared to steel ball equivalents. This bearing is pre-lubricated and operates effectively within a wide temperature range, making it an ideal solution for high-speed and high-reliability applications.
719/8 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 719/8 | Series designation and bore diameter (8 mm) |
| CE | Indicates Ceramic ball material |
| HC | Refers to the Phenolic cage material |
| P4 | Specifies the P4 (ABEC-7) tolerance class for ultra-high precision |
| A | Denotes a 15° contact angle |
719/8 CE/HCP4A Bearing Structural Features & Performance Benefits
High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage minimizes inertial forces, allowing the bearing to achieve a high limiting speed of 220,000 rpm. This design reduces friction and heat generation.
High Rigidity & Precision: Manufactured to a P4 tolerance class, this bearing provides exceptional running accuracy. The availability of preload further enhances system stiffness, minimizing deflection under load.
Optimized Load Capacity: With a 15° contact angle, the 719/8 CE/HCP4A is engineered to handle combined radial and axial loads simultaneously, making it suitable for complex loading conditions.
Durability & Corrosion Resistance: The chrome steel rings offer high strength and wear resistance, while the ceramic balls are inherently corrosion-resistant and provide a longer operational life.
719/8 CE/HCP4A Bearing Typical Application Areas
The 719/8 CE/HCP4A is ideally suited for high-performance applications where speed, precision, and reliability are critical. Key industries and equipment include:
- High-Speed Spindles for CNC machining centers and PCB drilling machines
- Precision Instrumentation and medical devices
- Turbochargers and other high-speed automotive components
- Aerospace auxiliary systems and instrumentation
- High-Frequency Motors and servo drives
