S7012 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7012 CB/HCP4A Bearing Product Overview & Core Advantages
The S7012 CB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This single-row bearing features a 15° contact angle and is supplied with a preload, making it ideal for setups where high stiffness and minimal axial/radial runout are critical. Its construction with ceramic balls and a phenolic cage contributes to superior high-speed performance, reduced weight, and extended service life. Designed to handle combined loads, it excels in precision machinery and high-reliability systems.
S7012 CB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| S7012 | Basic bearing designation, indicating a 60mm bore, 95mm OD, and 18mm width. |
| C | Specific internal design and contact angle (15°). |
| B | Indicates a preload class for enhanced rigidity. |
| HC | Hybrid Ceramic, signifying the use of ceramic balls for high-speed and longevity. |
| P4 | Precision tolerance class (ABEC-7), ensuring ultra-high running accuracy. |
S7012 CB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Preload: The preloaded design provides superior system stiffness, critical for minimizing deflection under load and maintaining precision in machining or positioning applications.
- Enhanced Speed & Durability: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage enables a high limiting speed of 24,000 rpm and excellent wear resistance.
- Superior Load Capacity: The 15° contact angle is optimized to handle significant combined loads (radial and axial), making it suitable for complex loading conditions.
- Sealed & Lubricated for Life: As a sealed and pre-lubricated unit, it is protected from contamination and is designed for maintenance-free operation within its specified temperature range.
- High-Precision Operation: Manufactured to P4 (ABEC-7) tolerance standards, this bearing guarantees minimal runout and vibration for exceptional application performance.
S7012 CB/HCP4A Bearing Typical Application Areas
The S7012 CB/HCP4A is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arm joints, high-accuracy actuators)
- High-Frequency Motors and Spindles
- Medical and Laboratory Equipment (Centrifuges, precision scanners)
- Aerospace Instrumentation and other systems demanding high reliability and speed.
