7012 ACE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7012 ACE/HCP4ADBA Bearing Product Overview & Core Advantages
The 7012 ACE/HCP4ADBA is a duplex back-to-back angular contact ball bearing designed for high-precision applications requiring exceptional rigidity and speed capability. This P4A super-precision bearing features a ceramic ball and phenolic cage construction, enabling superior performance under combined radial and axial loads. Its extra light preload (Class A) and optimized 25° contact angle ensure minimal deflection and smooth operation in demanding environments.
7012 ACE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACE | 25° contact angle, extra light preload | Optimized for high-speed operation with minimal friction |
| HC | Hybrid ceramic balls | Enhanced speed capability, reduced heat generation, and longer service life |
| P4A | Super precision tolerance class | Exceptional running accuracy and rotational precision |
| DB | Duplex back-to-back arrangement | Superior rigidity and moment load capacity |
7012 ACE/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration provides exceptional stiffness, enabling the bearing to withstand combined loads and significant moment loads. With a dynamic load rating of 5850 lbf and static load rating of 5512 lbf, this bearing delivers reliable performance in demanding applications.
High-Speed Performance: The combination of ceramic balls and phenolic resin cage allows for limiting speeds up to 35,000 rpm. The lightweight construction reduces centrifugal forces, while the optimized 25° contact angle ensures stable operation at high rotational speeds.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore diameter tolerance: -0.004mm to 0), this bearing guarantees exceptional running accuracy and minimal vibration for precision machinery requirements.
Temperature Stability: The hybrid ceramic construction provides stable performance across a wide temperature range from -30°C to 110°C, maintaining dimensional stability and lubrication effectiveness.
7012 ACE/HCP4ADBA Bearing Typical Application Areas
- Machine tool spindles for high-speed milling and grinding operations
- Precision machining centers requiring exceptional rotational accuracy
- High-speed robotic systems and automation equipment
- Aerospace components and navigation systems
- Medical equipment spindles for dental and surgical devices
- Semiconductor manufacturing equipment requiring ultra-precise motion control
