7008 ACE/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7008 ACE/HCP4AQBCA Bearing Product Overview & Core Advantages
The 7008 ACE/HCP4AQBCA is a high-precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This ceramic hybrid bearing features a back-to-back quadruplex arrangement, enabling it to withstand combined radial and axial loads simultaneously with superior performance. Its P4A tolerance class and phenolic cage contribute to its high-speed capabilities and operational stability, making it an ideal solution for ultra-precision machinery.
7008 ACE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7008 | Basic bearing series and size designation |
| ACE | Angular Contact design with 25° contact angle |
| HC | Hybrid Ceramic construction (ceramic balls with steel rings) |
| P4A | Ultra-precision tolerance class for highest running accuracy |
| QBC | Quadruplex Back-to-Back matched arrangement of 4 bearings |
7008 ACE/HCP4AQBCA Bearing Structural Features & Performance Benefits
Exceptional Rigidity: The quadruplex back-to-back configuration provides maximum system stiffness, essential for applications requiring minimal deflection under heavy combined loads.
Superior Speed Performance: The combination of ceramic balls and phenolic resin cage enables operation at high rotational speeds (up to 56,000 rpm) while reducing centrifugal forces and heat generation.
Enhanced Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing delivers excellent performance for both radial and axial loading conditions.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional control on all bearing dimensions (bore, OD, and width), ensuring consistent high-precision performance.
Temperature Stability: The hybrid ceramic construction provides stable performance across a wide temperature range from -30°C to 110°C.
7008 ACE/HCP4AQBCA Bearing Typical Application Areas
- High-speed machine tool spindles for precision machining centers
- Precision grinding spindles requiring ultra-high rotational accuracy
- Medical equipment spindles in dental and surgical devices
- Aerospace components including gyroscopes and navigation systems
- Semiconductor manufacturing equipment for wafer processing
- High-frequency motor spindles in industrial automation
