S71906 CEGA/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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S71906 CEGA/HCP4A Bearing Product Overview & Core Advantages
The S71906 CEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This sealed bearing features a single, universal matchable (SU) design with an extra light preload (Class A), enabling it to handle combined radial and axial loads simultaneously. Its compact 9mm width and use of ceramic balls contribute to superior high-speed capabilities and reduced rotational mass, making it ideal for high-reliability, precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S71906 | Precision angular contact ball bearing series with 30mm bore, 47mm OD. |
| CE | Contact angle of 15°. |
| GA | Universal matching designation; two bearings can be paired for specific preload and rigidity. |
| HC | Hybrid Ceramic: Ceramic balls with steel rings. |
| P4A | High precision tolerance class (equivalent to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
S71906 CEGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear, enabling higher limiting speeds (100,500 rpm) and longer service life, especially in high-speed applications.
High Rigidity & Precision: The P4A tolerance class and 15° contact angle provide exceptional running accuracy and stiffness, effectively managing combined loads for stable operation.
Optimized for Speed: The lightweight phenolic cage and low-friction ceramic balls work in concert to minimize centrifugal forces, directly contributing to the bearing's outstanding high-speed performance.
Sealed & Pre-Lubricated: The integral seals protect against contamination, and the factory-applied grease lubrication ensures immediate operation and reliable performance within a temperature range of -30°C to 110°C.
S71906 CEGA/HCP4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and reliability are critical. Key industries and equipment include:
- Machine Tool Spindles
- High-Frequency Motors and Spindles
- Precision Grinding Equipment
- Aerospace & Defense Systems
- Medical & Dental Equipment
- Robotics and Automation
