7015 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7015 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The 7015 CE/HCP4ADBA is a high-precision duplex angular contact ball bearing designed for exceptional performance in demanding applications. This matched back-to-back (DB) arrangement provides superior rigidity and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class and featuring a phenolic cage with ceramic balls, this bearing is engineered for high-speed operation and long-term reliability in precision machinery.
7015 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| 7015 | Basic bearing series; 75 mm bore, 115 mm OD, 40 mm width |
| C | 15° contact angle |
| E | Optimized internal design |
| HC | Hybrid Ceramic (Silicon Nitride balls) |
| P4A | High-precision tolerance class (exceeds ABEC 7) |
| DB | Duplex Back-to-Back arrangement |
| A | Extra light preload |
7015 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and provides stable axial and radial positioning. This arrangement significantly increases system stiffness compared to single bearings.
High-Speed Performance: The combination of phenolic resin cage and ceramic balls (silicon nitride) enables exceptional high-speed capability up to 24,000 rpm. Ceramic balls reduce centrifugal forces, lower friction, and minimize heat generation.
Precision & Accuracy: Manufactured to P4A tolerance class with precise dimensional control (bore/OD tolerance: -0.004mm to 0), this bearing ensures minimal runout and superior rotational accuracy for precision applications.
Extended Service Life: The hybrid ceramic design provides excellent wear resistance, reduced electrical arcing, and superior performance in lubricant-starved conditions compared to all-steel bearings.
7015 CE/HCP4ADBA Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and grinding spindles
- Precision Medical Equipment - Dental handpieces and surgical tools
- Aerospace Systems - Guidance systems and auxiliary power units
- High-Frequency Motors - Spindle motors and high-RPM applications
- Semiconductor Manufacturing - Wafer handling robots and precision stages
