S7008 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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S7008 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The S7008 CE/HCP4ADBA is a high-precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and speed. This matched set features a Back-to-Back (DB) arrangement, providing superior stability and the ability to withstand combined radial and axial loads from both directions. Manufactured to a P4A super-precision tolerance and utilizing ceramic balls, it delivers outstanding rotational accuracy, reduced heat generation, and extended service life in high-performance machinery.
S7008 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7008 | Bearing series and size designation (40mm bore, 68mm OD). |
| C | 15° contact angle. |
| E | Optimized internal design. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls. |
| P4A | Super-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| A | Extra light preload for minimal friction and high-speed operation. |
| DB | Duplex Back-to-Back matched arrangement. |
S7008 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
Exceptional Rigidity and Load Capacity: The duplex Back-to-Back (DB) arrangement creates a rigid bearing system that effectively resists moment loads and supports combined radial and thrust loads. This configuration is critical for applications requiring high shaft positioning accuracy.
High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage allows for a very high limiting speed of 41,000 rpm. The extra light preload (Class A) further minimizes friction and heat buildup.
Precision and Longevity: Manufactured to P4A tolerance, this bearing ensures minimal runout and vibration. The hybrid ceramic design offers superior wear resistance, electrical insulation, and extended lubrication life compared to all-steel bearings.
Sealed and Lubricated for Life: As a sealed bearing pre-lubricated with grease, it is protected from contamination and is typically maintenance-free within its specified operating conditions.
S7008 CE/HCP4ADBA Bearing Typical Application Areas
This high-performance duplex angular contact ball bearing is ideally suited for the most demanding precision applications, including:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Robotics and Automation
- Aerospace Actuators and Control Systems
- Medical and Dental High-Speed Handpieces
- Advanced Turbochargers
