S7011 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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S7011 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The S7011 CD/HCP4ADBA is a precision duplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions simultaneously. Manufactured to P4A tolerance class and featuring ceramic balls, this bearing is engineered for high-speed operation and long-term reliability in precision machinery.
S7011 CD/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7011 | Basic bearing designation with 55mm bore diameter |
| C | 15° contact angle design |
| D | Duplex back-to-back (DB) arrangement |
| HC | Hybrid ceramic balls |
| P4A | High precision tolerance class |
| A | Extra light preload |
S7011 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The duplex back-to-back configuration creates a rigid bearing system that minimizes deflection under load, making it ideal for applications requiring high positional accuracy.
Superior Load Capacity: With a 15° contact angle and optimized internal geometry, this bearing effectively handles combined radial and axial loads in both directions, providing versatile load-carrying capability.
High-Speed Performance: The combination of ceramic balls and phenolic cage enables operation at limiting speeds up to 34,000 rpm, while reducing centrifugal forces and heat generation.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring consistent performance in precision applications.
Temperature Stability: The hybrid ceramic construction provides excellent performance across a wide temperature range (-30°C to 110°C) with minimal thermal expansion.
S7011 CD/HCP4ADBA Bearing Typical Application Areas
This high-precision duplex bearing is specifically designed for applications requiring exceptional accuracy and rigidity:
- Machine tool spindles for high-speed milling and grinding operations
- Precision robotics and automation equipment
- High-speed machining centers requiring minimal runout
- Aerospace positioning systems and flight control mechanisms
- Medical equipment spindles for surgical and diagnostic devices
- Semiconductor manufacturing equipment requiring ultra-precise motion control
