S7000 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7000 CD/HCP4A Bearing Product Overview & Core Advantages
The S7000 CD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and exceptional speed performance. Its defining characteristics include a 15° contact angle and a P4 (ABEC-7) tolerance class, making it ideal for managing combined radial and axial loads with superior running accuracy. The use of ceramic balls and a phenolic cage significantly reduces centrifugal forces, enabling its remarkable limiting speed of 90,000 rpm. This bearing is preloaded and pre-lubricated, offering a compact, ready-to-install solution for high-reliability systems.
S7000 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and moderate axial loads. |
| D | Enhanced Design / Preload | Provides high rigidity and precise shaft positioning. |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Reduces weight and friction, enabling higher speeds and longer service life. |
| P4 | ABEC-7 Precision Class | Guarantees ultra-precise running tolerances for applications requiring minimal vibration and runout. |
| A | Standard Internal Clearance / Arrangement | Defines the specific internal fit for the application. |
S7000 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (ceramic) balls drastically reduces friction and heat generation. This results in lower operating temperatures and a dramatic increase in the bearing's limiting speed and overall service life, especially in demanding environments.
- High-Speed Phenolic Cage: The lightweight and robust phenolic resin cage ensures excellent dimensional stability and low centrifugal stress at ultra-high rotational speeds, contributing to reliable and smooth operation.
- Precision & Rigidity: Manufactured to P4 tolerance and supplied with preload, this bearing offers exceptional running accuracy and system stiffness, minimizing deflection under load for superior machining or positioning quality.
- 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, simplifying system design and reliability.
S7000 CD/HCP4A Bearing Typical Application Areas
The S7000 CD/HCP4A is ideally suited for high-performance machinery where speed, precision, and reliability are paramount. Key application areas include:
- High-Speed Machine Tool Spindles: For CNC milling, grinding, and drilling centers.
- Precision Robotics: Joint and arm actuators requiring high rigidity and responsiveness.
- Advanced Medical Equipment: Dental handpieces, centrifuges, and imaging scanner rotors.
- Aerospace & Defense Systems: Gyroscopes, navigation instruments, and auxiliary power units (APUs).
- High-Frequency Motors and Spindles: Where extreme rotational velocities are standard.
