S7007 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7007 CB/HCP4A Bearing Product Overview & Core Advantages
The S7007 CB/HCP4A is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered to accommodate combined loads (simultaneous radial and axial loads), this single bearing features a 15° contact angle and is supplied with a preload, ensuring high system rigidity and precise rotational accuracy. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance, making it an ideal choice for demanding, high-reliability applications where compactness and precision are paramount.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7007 | Basic bearing series and size designation (35mm bore, 62mm OD, 14mm width). |
| CB | Specific internal design and clearance for preload and optimized contact angle. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls. |
| P4 | Precision class (ABEC-7), indicating very tight dimensional and running accuracy tolerances. |
| A | 30° contact angle variant (Note: Product data specifies 15°, this suffix may refer to a specific internal design or grouping). |
S7007 CB/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially at high speeds (up to 38,000 rpm).
- High Rigidity & Preload: The angular contact design with a 15° contact angle and applied preload provides exceptional system stiffness, minimizing deflection under load for superior positional accuracy.
- Superior High-Speed Capability: The lightweight phenolic cage and low-density ceramic balls work in concert to enable very high limiting speeds, reducing friction and inertial forces.
- Precision Performance: Manufactured to P4 (ABEC-7) tolerance class, this bearing ensures smooth, quiet, and vibration-free operation, which is critical for high-precision machinery.
- Sealed & Lubricated: The sealed design retains lubricant and effectively excludes contaminants, ensuring long-term, maintenance-free operation within the specified temperature range.
S7007 CB/HCP4A Bearing Typical Application Areas
The S7007 CB/HCP4A is ideally suited for high-performance applications across various industries, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors & Spindles: Where minimal runout and high rotational accuracy are required.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and other critical rotating assemblies.
- Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging device rotors.
